diff options
337 files changed, 13315 insertions, 2472 deletions
diff --git a/Documentation/devicetree/bindings/Makefile b/Documentation/devicetree/bindings/Makefile index 6b0dfd5c17ba..5138a2f6232a 100644 --- a/Documentation/devicetree/bindings/Makefile +++ b/Documentation/devicetree/bindings/Makefile @@ -19,7 +19,9 @@ quiet_cmd_mk_schema = SCHEMA $@ DT_DOCS = $(shell \ cd $(srctree)/$(src) && \ - find * \( -name '*.yaml' ! -name $(DT_TMP_SCHEMA) \) \ + find * \( -name '*.yaml' ! \ + -name $(DT_TMP_SCHEMA) ! \ + -name '*.example.dt.yaml' \) \ ) DT_SCHEMA_FILES ?= $(addprefix $(src)/,$(DT_DOCS)) diff --git a/Documentation/devicetree/bindings/net/fsl-fec.txt b/Documentation/devicetree/bindings/net/fsl-fec.txt index 2d41fb96ce0a..5b88fae0307d 100644 --- a/Documentation/devicetree/bindings/net/fsl-fec.txt +++ b/Documentation/devicetree/bindings/net/fsl-fec.txt @@ -7,18 +7,6 @@ Required properties: - phy-mode : See ethernet.txt file in the same directory Optional properties: -- phy-reset-gpios : Should specify the gpio for phy reset -- phy-reset-duration : Reset duration in milliseconds. Should present - only if property "phy-reset-gpios" is available. Missing the property - will have the duration be 1 millisecond. Numbers greater than 1000 are - invalid and 1 millisecond will be used instead. -- phy-reset-active-high : If present then the reset sequence using the GPIO - specified in the "phy-reset-gpios" property is reversed (H=reset state, - L=operation state). -- phy-reset-post-delay : Post reset delay in milliseconds. If present then - a delay of phy-reset-post-delay milliseconds will be observed after the - phy-reset-gpios has been toggled. Can be omitted thus no delay is - observed. Delay is in range of 1ms to 1000ms. Other delays are invalid. - phy-supply : regulator that powers the Ethernet PHY. - phy-handle : phandle to the PHY device connected to this device. - fixed-link : Assume a fixed link. See fixed-link.txt in the same directory. @@ -47,11 +35,27 @@ Optional properties: For imx6sx, "int0" handles all 3 queues and ENET_MII. "pps" is for the pulse per second interrupt associated with 1588 precision time protocol(PTP). - Optional subnodes: - mdio : specifies the mdio bus in the FEC, used as a container for phy nodes according to phy.txt in the same directory +Deprecated optional properties: + To avoid these, create a phy node according to phy.txt in the same + directory, and point the fec's "phy-handle" property to it. Then use + the phy's reset binding, again described by phy.txt. +- phy-reset-gpios : Should specify the gpio for phy reset +- phy-reset-duration : Reset duration in milliseconds. Should present + only if property "phy-reset-gpios" is available. Missing the property + will have the duration be 1 millisecond. Numbers greater than 1000 are + invalid and 1 millisecond will be used instead. +- phy-reset-active-high : If present then the reset sequence using the GPIO + specified in the "phy-reset-gpios" property is reversed (H=reset state, + L=operation state). +- phy-reset-post-delay : Post reset delay in milliseconds. If present then + a delay of phy-reset-post-delay milliseconds will be observed after the + phy-reset-gpios has been toggled. Can be omitted thus no delay is + observed. Delay is in range of 1ms to 1000ms. Other delays are invalid. + Example: ethernet@83fec000 { diff --git a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml index 91d3e78b3395..400df2da018a 100644 --- a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml +++ b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml @@ -37,7 +37,8 @@ properties: hwlocks: true st,syscfg: - $ref: "/schemas/types.yaml#/definitions/phandle-array" + allOf: + - $ref: "/schemas/types.yaml#/definitions/phandle-array" description: Should be phandle/offset/mask items: - description: Phandle to the syscon node which includes IRQ mux selection. diff --git a/drivers/staging/erofs/Documentation/filesystems/erofs.txt b/Documentation/filesystems/erofs.txt index 0eab600ca7ca..38aa9126ec98 100644 --- a/drivers/staging/erofs/Documentation/filesystems/erofs.txt +++ b/Documentation/filesystems/erofs.txt @@ -49,10 +49,6 @@ Bugs and patches are welcome, please kindly help us and send to the following linux-erofs mailing list: >> linux-erofs mailing list <linux-erofs@lists.ozlabs.org> -Note that EROFS is still working in progress as a Linux staging driver, -Cc the staging mailing list as well is highly recommended: ->> Linux Driver Project Developer List <devel@driverdev.osuosl.org> - Mount options ============= diff --git a/MAINTAINERS b/MAINTAINERS index f0c03740b9fb..8c71957ca9d8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6047,6 +6047,13 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/kristoffer/linux-hpc.git F: drivers/video/fbdev/s1d13xxxfb.c F: include/video/s1d13xxxfb.h +EROFS FILE SYSTEM +M: Gao Xiang <gaoxiang25@huawei.com> +M: Chao Yu <yuchao0@huawei.com> +L: linux-erofs@lists.ozlabs.org +S: Maintained +F: fs/erofs/ + ERRSEQ ERROR TRACKING INFRASTRUCTURE M: Jeff Layton <jlayton@kernel.org> S: Maintained @@ -6091,6 +6098,11 @@ F: include/trace/events/mdio.h F: include/uapi/linux/mdio.h F: include/uapi/linux/mii.h +EXFAT FILE SYSTEM +M: Valdis Kletnieks <valdis.kletnieks@vt.edu> +S: Maintained +F: drivers/staging/exfat/ + EXT2 FILE SYSTEM M: Jan Kara <jack@suse.com> L: linux-ext4@vger.kernel.org @@ -6450,6 +6462,14 @@ S: Maintained F: drivers/perf/fsl_imx8_ddr_perf.c F: Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt +FREESCALE IMX I2C DRIVER +M: Oleksij Rempel <o.rempel@pengutronix.de> +R: Pengutronix Kernel Team <kernel@pengutronix.de> +L: linux-i2c@vger.kernel.org +S: Maintained +F: drivers/i2c/busses/i2c-imx.c +F: Documentation/devicetree/bindings/i2c/i2c-imx.txt + FREESCALE IMX LPI2C DRIVER M: Dong Aisheng <aisheng.dong@nxp.com> L: linux-i2c@vger.kernel.org @@ -6989,6 +7009,9 @@ M: Alex Elder <elder@kernel.org> M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> S: Maintained F: drivers/staging/greybus/ +F: drivers/greybus/ +F: include/linux/greybus.h +F: include/linux/greybus/ L: greybus-dev@lists.linaro.org (moderated for non-subscribers) GREYBUS UART PROTOCOLS DRIVERS @@ -7461,7 +7484,7 @@ F: drivers/net/hyperv/ F: drivers/scsi/storvsc_drv.c F: drivers/uio/uio_hv_generic.c F: drivers/video/fbdev/hyperv_fb.c -F: drivers/iommu/hyperv_iommu.c +F: drivers/iommu/hyperv-iommu.c F: net/vmw_vsock/hyperv_transport.c F: include/clocksource/hyperv_timer.h F: include/linux/hyperv.h @@ -8073,6 +8096,13 @@ T: git git://git.code.sf.net/p/intel-sas/isci S: Supported F: drivers/scsi/isci/ +INTEL CPU family model numbers +M: Tony Luck <tony.luck@intel.com> +M: x86@kernel.org +L: linux-kernel@vger.kernel.org +S: Supported +F: arch/x86/include/asm/intel-family.h + INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets) M: Jani Nikula <jani.nikula@linux.intel.com> M: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> @@ -8424,7 +8454,6 @@ L: linux-xfs@vger.kernel.org L: linux-fsdevel@vger.kernel.org T: git git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git S: Supported -F: fs/iomap.c F: fs/iomap/ F: include/linux/iomap.h @@ -15216,13 +15245,6 @@ M: H Hartley Sweeten <hsweeten@visionengravers.com> S: Odd Fixes F: drivers/staging/comedi/ -STAGING - EROFS FILE SYSTEM -M: Gao Xiang <gaoxiang25@huawei.com> -M: Chao Yu <yuchao0@huawei.com> -L: linux-erofs@lists.ozlabs.org -S: Maintained -F: drivers/staging/erofs/ - STAGING - FIELDBUS SUBSYSTEM M: Sven Van Asbroeck <TheSven73@gmail.com> S: Maintained @@ -2,7 +2,7 @@ VERSION = 5 PATCHLEVEL = 3 SUBLEVEL = 0 -EXTRAVERSION = -rc4 +EXTRAVERSION = -rc5 NAME = Bobtail Squid # *DOCUMENTATION* diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 6774b03aa405..d42557ee69c2 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -2405,9 +2405,7 @@ long arch_dma_coherent_to_pfn(struct device *dev, void *cpu_addr, pgprot_t arch_dma_mmap_pgprot(struct device *dev, pgprot_t prot, unsigned long attrs) { - if (!dev_is_dma_coherent(dev)) - return __get_dma_pgprot(attrs, prot); - return prot; + return __get_dma_pgprot(attrs, prot); } void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index d19d14ba9ae4..b1fdc486aed8 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -184,9 +184,17 @@ static const struct arm64_ftr_bits ftr_id_aa64zfr0[] = { }; static const struct arm64_ftr_bits ftr_id_aa64mmfr0[] = { - S_ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_TGRAN4_SHIFT, 4, ID_AA64MMFR0_TGRAN4_NI), - S_ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_TGRAN64_SHIFT, 4, ID_AA64MMFR0_TGRAN64_NI), - ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_TGRAN16_SHIFT, 4, ID_AA64MMFR0_TGRAN16_NI), + /* + * We already refuse to boot CPUs that don't support our configured + * page size, so we can only detect mismatches for a page size other + * than the one we're currently using. Unfortunately, SoCs like this + * exist in the wild so, even though we don't like it, we'll have to go + * along with it and treat them as non-strict. + */ + S_ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_TGRAN4_SHIFT, 4, ID_AA64MMFR0_TGRAN4_NI), + S_ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_TGRAN64_SHIFT, 4, ID_AA64MMFR0_TGRAN64_NI), + ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_TGRAN16_SHIFT, 4, ID_AA64MMFR0_TGRAN16_NI), + ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_BIGENDEL0_SHIFT, 4, 0), /* Linux shouldn't care about secure memory */ ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_SNSMEM_SHIFT, 4, 0), diff --git a/arch/arm64/kernel/ftrace.c b/arch/arm64/kernel/ftrace.c index 1285c7b2947f..171773257974 100644 --- a/arch/arm64/kernel/ftrace.c +++ b/arch/arm64/kernel/ftrace.c @@ -73,7 +73,7 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) if (offset < -SZ_128M || offset >= SZ_128M) { #ifdef CONFIG_ARM64_MODULE_PLTS - struct plt_entry trampoline; + struct plt_entry trampoline, *dst; struct module *mod; /* @@ -106,23 +106,27 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) * to check if the actual opcodes are in fact identical, * regardless of the offset in memory so use memcmp() instead. */ - trampoline = get_plt_entry(addr, mod->arch.ftrace_trampoline); - if (memcmp(mod->arch.ftrace_trampoline, &trampoline, - sizeof(trampoline))) { - if (plt_entry_is_initialized(mod->arch.ftrace_trampoline)) { + dst = mod->arch.ftrace_trampoline; + trampoline = get_plt_entry(addr, dst); + if (memcmp(dst, &trampoline, sizeof(trampoline))) { + if (plt_entry_is_initialized(dst)) { pr_err("ftrace: far branches to multiple entry points unsupported inside a single module\n"); return -EINVAL; } /* point the trampoline to our ftrace entry point */ module_disable_ro(mod); - *mod->arch.ftrace_trampoline = trampoline; + *dst = trampoline; module_enable_ro(mod, true); - /* update trampoline before patching in the branch */ - smp_wmb(); + /* + * Ensure updated trampoline is visible to instruction + * fetch before we patch in the branch. + */ + __flush_icache_range((unsigned long)&dst[0], + (unsigned long)&dst[1]); } - addr = (unsigned long)(void *)mod->arch.ftrace_trampoline; + addr = (unsigned long)dst; #else /* CONFIG_ARM64_MODULE_PLTS */ return -EINVAL; #endif /* CONFIG_ARM64_MODULE_PLTS */ diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index 1d3f0b5a9940..bd2b039f43a6 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -14,9 +14,7 @@ pgprot_t arch_dma_mmap_pgprot(struct device *dev, pgprot_t prot, unsigned long attrs) { - if (!dev_is_dma_coherent(dev) || (attrs & DMA_ATTR_WRITE_COMBINE)) - return pgprot_writecombine(prot); - return prot; + return pgprot_writecombine(prot); } void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr, diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 77f6ebf97113..d8dcd8820369 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -121,7 +121,6 @@ config PPC select ARCH_32BIT_OFF_T if PPC32 select ARCH_HAS_DEBUG_VIRTUAL select ARCH_HAS_DEVMEM_IS_ALLOWED - select ARCH_HAS_DMA_MMAP_PGPROT select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_FORTIFY_SOURCE select ARCH_HAS_GCOV_PROFILE_ALL diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index ea0c69236789..56dfa7a2a6f2 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -49,8 +49,7 @@ obj-y := cputable.o ptrace.o syscalls.o \ signal.o sysfs.o cacheinfo.o time.o \ prom.o traps.o setup-common.o \ udbg.o misc.o io.o misc_$(BITS).o \ - of_platform.o prom_parse.o \ - dma-common.o + of_platform.o prom_parse.o obj-$(CONFIG_PPC64) += setup_64.o sys_ppc32.o \ signal_64.o ptrace32.o \ paca.o nvram_64.o firmware.o diff --git a/arch/powerpc/kernel/dma-common.c b/arch/powerpc/kernel/dma-common.c deleted file mode 100644 index dc7ef6b17b69..000000000000 --- a/arch/powerpc/kernel/dma-common.c +++ /dev/null @@ -1,17 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Contains common dma routines for all powerpc platforms. - * - * Copyright (C) 2019 Shawn Anastasio. - */ - -#include <linux/mm.h> -#include <linux/dma-noncoherent.h> - -pgprot_t arch_dma_mmap_pgprot(struct device *dev, pgprot_t prot, - unsigned long attrs) -{ - if (!dev_is_dma_coherent(dev)) - return pgprot_noncached(prot); - return prot; -} diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig index 93205c0bf71d..3efff552a261 100644 --- a/arch/riscv/configs/defconfig +++ b/arch/riscv/configs/defconfig @@ -54,6 +54,8 @@ CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_OF_PLATFORM=y CONFIG_SERIAL_EARLYCON_RISCV_SBI=y CONFIG_HVC_RISCV_SBI=y +CONFIG_HW_RANDOM=y +CONFIG_HW_RANDOM_VIRTIO=y CONFIG_SPI=y CONFIG_SPI_SIFIVE=y # CONFIG_PTP_1588_CLOCK is not set diff --git a/arch/riscv/configs/rv32_defconfig b/arch/riscv/configs/rv32_defconfig index d5449ef805a3..7da93e494445 100644 --- a/arch/riscv/configs/rv32_defconfig +++ b/arch/riscv/configs/rv32_defconfig @@ -34,6 +34,7 @@ CONFIG_PCIEPORTBUS=y CONFIG_PCI_HOST_GENERIC=y CONFIG_PCIE_XILINX=y CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y CONFIG_BLK_DEV_LOOP=y CONFIG_VIRTIO_BLK=y CONFIG_BLK_DEV_SD=y @@ -53,6 +54,8 @@ CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_OF_PLATFORM=y CONFIG_SERIAL_EARLYCON_RISCV_SBI=y CONFIG_HVC_RISCV_SBI=y +CONFIG_HW_RANDOM=y +CONFIG_HW_RANDOM_VIRTIO=y # CONFIG_PTP_1588_CLOCK is not set CONFIG_DRM=y CONFIG_DRM_RADEON=y diff --git a/arch/riscv/include/asm/switch_to.h b/arch/riscv/include/asm/switch_to.h index 853b65ef656d..f0227bdce0f0 100644 --- a/arch/riscv/include/asm/switch_to.h +++ b/arch/riscv/include/asm/switch_to.h @@ -16,7 +16,13 @@ extern void __fstate_restore(struct task_struct *restore_from); static inline void __fstate_clean(struct pt_regs *regs) { - regs->sstatus |= (regs->sstatus & ~(SR_FS)) | SR_FS_CLEAN; + regs->sstatus = (regs->sstatus & ~SR_FS) | SR_FS_CLEAN; +} + +static inline void fstate_off(struct task_struct *task, + struct pt_regs *regs) +{ + regs->sstatus = (regs->sstatus & ~SR_FS) | SR_FS_OFF; } static inline void fstate_save(struct task_struct *task, diff --git a/arch/riscv/include/asm/tlbflush.h b/arch/riscv/include/asm/tlbflush.h index 687dd19735a7..4d9bbe8438bf 100644 --- a/arch/riscv/include/asm/tlbflush.h +++ b/arch/riscv/include/asm/tlbflush.h @@ -53,10 +53,17 @@ static inline void remote_sfence_vma(struct cpumask *cmask, unsigned long start, } #define flush_tlb_all() sbi_remote_sfence_vma(NULL, 0, -1) -#define flush_tlb_page(vma, addr) flush_tlb_range(vma, addr, 0) + #define flush_tlb_range(vma, start, end) \ remote_sfence_vma(mm_cpumask((vma)->vm_mm), start, (end) - (start)) -#define flush_tlb_mm(mm) \ + +static inline void flush_tlb_page(struct vm_area_struct *vma, + unsigned long addr) +{ + flush_tlb_range(vma, addr, addr + PAGE_SIZE); +} + +#define flush_tlb_mm(mm) \ remote_sfence_vma(mm_cpumask(mm), 0, -1) #endif /* CONFIG_SMP */ diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c index f23794bd1e90..fb3a082362eb 100644 --- a/arch/riscv/kernel/process.c +++ b/arch/riscv/kernel/process.c @@ -64,8 +64,14 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp) { regs->sstatus = SR_SPIE; - if (has_fpu) + if (has_fpu) { regs->sstatus |= SR_FS_INITIAL; + /* + * Restore the initial value to the FP register + * before starting the user program. + */ + fstate_restore(current, regs); + } regs->sepc = pc; regs->sp = sp; set_fs(USER_DS); @@ -75,10 +81,11 @@ void flush_thread(void) { #ifdef CONFIG_FPU /* - * Reset FPU context + * Reset FPU state and context * frm: round to nearest, ties to even (IEEE default) * fflags: accrued exceptions cleared */ + fstate_off(current, task_pt_regs(current)); memset(¤t->thread.fstate, 0, sizeof(current->thread.fstate)); #endif } diff --git a/arch/sh/kernel/disassemble.c b/arch/sh/kernel/disassemble.c index defebf1a9c8a..845543780cc5 100644 --- a/arch/sh/kernel/disassemble.c +++ b/arch/sh/kernel/disassemble.c @@ -475,8 +475,6 @@ static void print_sh_insn(u32 memaddr, u16 insn) printk("dbr"); break; case FD_REG_N: - if (0) - goto d_reg_n; case F_REG_N: printk("fr%d", rn); break; @@ -488,7 +486,7 @@ static void print_sh_insn(u32 memaddr, u16 insn) printk("xd%d", rn & ~1); break; } - d_reg_n: + /* else, fall through */ case D_REG_N: printk("dr%d", rn); break; @@ -497,6 +495,7 @@ static void print_sh_insn(u32 memaddr, u16 insn) printk("xd%d", rm & ~1); break; } + /* else, fall through */ case D_REG_M: printk("dr%d", rm); break; diff --git a/arch/sh/kernel/hw_breakpoint.c b/arch/sh/kernel/hw_breakpoint.c index 3bd010b4c55f..f10d64311127 100644 --- a/arch/sh/kernel/hw_breakpoint.c +++ b/arch/sh/kernel/hw_breakpoint.c @@ -157,6 +157,7 @@ int arch_bp_generic_fields(int sh_len, int sh_type, switch (sh_type) { case SH_BREAKPOINT_READ: *gen_type = HW_BREAKPOINT_R; + break; case SH_BREAKPOINT_WRITE: *gen_type = HW_BREAKPOINT_W; break; diff --git a/arch/x86/include/asm/bootparam_utils.h b/arch/x86/include/asm/bootparam_utils.h index 101eb944f13c..f5e90a849bca 100644 --- a/arch/x86/include/asm/bootparam_utils.h +++ b/arch/x86/include/asm/bootparam_utils.h @@ -18,6 +18,20 @@ * Note: efi_info is commonly left uninitialized, but that field has a * private magic, so it is better to leave it unchanged. */ + +#define sizeof_mbr(type, member) ({ sizeof(((type *)0)->member); }) + +#define BOOT_PARAM_PRESERVE(struct_member) \ + { \ + .start = offsetof(struct boot_params, struct_member), \ + .len = sizeof_mbr(struct boot_params, struct_member), \ + } + +struct boot_params_to_save { + unsigned int start; + unsigned int len; +}; + static void sanitize_boot_params(struct boot_params *boot_params) { /* @@ -35,21 +49,40 @@ static void sanitize_boot_params(struct boot_params *boot_params) * problems again. */ if (boot_params->sentinel) { - /* fields in boot_params are left uninitialized, clear them */ - boot_params->acpi_rsdp_addr = 0; - memset(&boot_params->ext_ramdisk_image, 0, - (char *)&boot_params->efi_info - - (char *)&boot_params->ext_ramdisk_image); - memset(&boot_params->kbd_status, 0, - (char *)&boot_params->hdr - - (char *)&boot_params->kbd_status); - memset(&boot_params->_pad7[0], 0, - (char *)&boot_params->edd_mbr_sig_buffer[0] - - (char *)&boot_params->_pad7[0]); - memset(&boot_params->_pad8[0], 0, - (char *)&boot_params->eddbuf[0] - - (char *)&boot_params->_pad8[0]); - memset(&boot_params->_pad9[0], 0, sizeof(boot_params->_pad9)); + static struct boot_params scratch; + char *bp_base = (char *)boot_params; + char *save_base = (char *)&scratch; + int i; + + const struct boot_params_to_save to_save[] = { + BOOT_PARAM_PRESERVE(screen_info), + BOOT_PARAM_PRESERVE(apm_bios_info), + BOOT_PARAM_PRESERVE(tboot_addr), + BOOT_PARAM_PRESERVE(ist_info), + BOOT_PARAM_PRESERVE(acpi_rsdp_addr), + BOOT_PARAM_PRESERVE(hd0_info), + BOOT_PARAM_PRESERVE(hd1_info), + BOOT_PARAM_PRESERVE(sys_desc_table), + BOOT_PARAM_PRESERVE(olpc_ofw_header), + BOOT_PARAM_PRESERVE(efi_info), + BOOT_PARAM_PRESERVE(alt_mem_k), + BOOT_PARAM_PRESERVE(scratch), + BOOT_PARAM_PRESERVE(e820_entries), + BOOT_PARAM_PRESERVE(eddbuf_entries), + BOOT_PARAM_PRESERVE(edd_mbr_sig_buf_entries), + BOOT_PARAM_PRESERVE(edd_mbr_sig_buffer), + BOOT_PARAM_PRESERVE(e820_table), + BOOT_PARAM_PRESERVE(eddbuf), + }; + + memset(&scratch, 0, sizeof(scratch)); + + for (i = 0; i < ARRAY_SIZE(to_save); i++) { + memcpy(save_base + to_save[i].start, + bp_base + to_save[i].start, to_save[i].len); + } + + memcpy(boot_params, save_base, sizeof(*boot_params)); } } diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c index 1492799b8f43..ee2d91e382f1 100644 --- a/arch/x86/kernel/apic/probe_32.c +++ b/arch/x86/kernel/apic/probe_32.c @@ -184,7 +184,8 @@ void __init default_setup_apic_routing(void) def_to_bigsmp = 0; break; } - /* If P4 and above fall through */ + /* P4 and above */ + /* fall through */ case X86_VENDOR_HYGON: case X86_VENDOR_AMD: def_to_bigsmp = 1; diff --git a/arch/x86/kernel/cpu/umwait.c b/arch/x86/kernel/cpu/umwait.c index 6a204e7336c1..32b4dc9030aa 100644 --- a/arch/x86/kernel/cpu/umwait.c +++ b/arch/x86/kernel/cpu/umwait.c @@ -18,6 +18,12 @@ static u32 umwait_control_cached = UMWAIT_CTRL_VAL(100000, UMWAIT_C02_ENABLE); /* + * Cache the original IA32_UMWAIT_CONTROL MSR value which is configured by + * hardware or BIOS before kernel boot. + */ +static u32 orig_umwait_control_cached __ro_after_init; + +/* * Serialize access to umwait_control_cached and IA32_UMWAIT_CONTROL MSR in * the sysfs write functions. */ @@ -53,6 +59,23 @@ static int umwait_cpu_online(unsigned int cpu) } /* + * The CPU hotplug callback sets the control MSR to the original control + * value. + */ +static int umwait_cpu_offline(unsigned int cpu) +{ + /* + * This code is protected by the CPU hotplug already and + * orig_umwait_control_cached is never changed after it caches + * the original control MSR value in umwait_init(). So there + * is no race condition here. + */ + wrmsr(MSR_IA32_UMWAIT_CONTROL, orig_umwait_control_cached, 0); + + return 0; +} + +/* * On resume, restore IA32_UMWAIT_CONTROL MSR on the boot processor which * is the only active CPU at this time. The MSR is set up on the APs via the * CPU hotplug callback. @@ -185,8 +208,22 @@ static int __init umwait_init(void) if (!boot_cpu_has(X86_FEATURE_WAITPKG)) return -ENODEV; + /* + * Cache the original control MSR value before the control MSR is + * changed. This is the only place where orig_umwait_control_cached + * is modified. + */ + rdmsrl(MSR_IA32_UMWAIT_CONTROL, orig_umwait_control_cached); + ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "umwait:online", - umwait_cpu_online, NULL); + umwait_cpu_online, umwait_cpu_offline); + if (ret < 0) { + /* + * On failure, the control MSR on all CPUs has the + * original control value. + */ + return ret; + } register_syscore_ops(&umwait_syscore_ops); diff --git a/arch/x86/math-emu/errors.c b/arch/x86/math-emu/errors.c index 6b468517ab71..73dc66d887f3 100644 --- a/arch/x86/math-emu/errors.c +++ b/arch/x86/math-emu/errors.c @@ -178,13 +178,15 @@ void FPU_printall(void) for (i = 0; i < 8; i++) { FPU_REG *r = &st(i); u_char tagi = FPU_gettagi(i); + switch (tagi) { case TAG_Empty: continue; - break; case TAG_Zero: case TAG_Special: + /* Update tagi for the printk below */ tagi = FPU_Special(r); + /* fall through */ case TAG_Valid: printk("st(%d) %c .%04lx %04lx %04lx %04lx e%+-6d ", i, getsign(r) ? '-' : '+', @@ -198,7 +200,6 @@ void FPU_printall(void) printk("Whoops! Error in errors.c: tag%d is %d ", i, tagi); continue; - break; } printk("%s\n", tag_desc[(int)(unsigned)tagi]); } diff --git a/arch/x86/math-emu/fpu_trig.c b/arch/x86/math-emu/fpu_trig.c index 783c509f957a..127ea54122d7 100644 --- a/arch/x86/math-emu/fpu_trig.c +++ b/arch/x86/math-emu/fpu_trig.c @@ -1352,7 +1352,7 @@ static void fyl2xp1(FPU_REG *st0_ptr, u_char st0_tag) case TW_Denormal: if (denormal_operand() < 0) return; - + /* fall through */ case TAG_Zero: case TAG_Valid: setsign(st0_ptr, getsign(st0_ptr) ^ getsign(st1_ptr)); diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c index 5cb8a62e091c..7c3106093c75 100644 --- a/arch/xtensa/kernel/setup.c +++ b/arch/xtensa/kernel/setup.c @@ -511,6 +511,7 @@ void cpu_reset(void) "add %2, %2, %7\n\t" "addi %0, %0, -1\n\t" "bnez %0, 1b\n\t" + "isync\n\t" /* Jump to identity mapping */ "jx %3\n" "2:\n\t" diff --git a/block/blk-mq.c b/block/blk-mq.c index f78d3287dd82..0835f4d8d42e 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1958,13 +1958,9 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio) rq = blk_mq_get_request(q, bio, &data); if (unlikely(!rq)) { rq_qos_cleanup(q, bio); - - cookie = BLK_QC_T_NONE; - if (bio->bi_opf & REQ_NOWAIT_INLINE) - cookie = BLK_QC_T_EAGAIN; - else if (bio->bi_opf & REQ_NOWAIT) + if (bio->bi_opf & REQ_NOWAIT) bio_wouldblock_error(bio); - return cookie; + return BLK_QC_T_NONE; } trace_block_getrq(q, bio, bio->bi_opf); @@ -2666,8 +2662,6 @@ void blk_mq_release(struct request_queue *q) struct blk_mq_hw_ctx *hctx, *next; int i; - cancel_delayed_work_sync(&q->requeue_work); - queue_for_each_hw_ctx(q, hctx, i) WARN_ON_ONCE(hctx && list_empty(&hctx->hctx_list)); diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index 977c659dcd18..9bfa3ea4ed63 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -892,6 +892,9 @@ static void __blk_release_queue(struct work_struct *work) blk_free_queue_stats(q->stats); + if (queue_is_mq(q)) + cancel_delayed_work_sync(&q->requeue_work); + blk_exit_queue(q); blk_queue_free_zone_bitmaps(q); diff --git a/drivers/Kconfig b/drivers/Kconfig index 61cf4ea2c229..7dce76ae7369 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -146,6 +146,8 @@ source "drivers/hv/Kconfig" source "drivers/xen/Kconfig" +source "drivers/greybus/Kconfig" + source "drivers/staging/Kconfig" source "drivers/platform/Kconfig" diff --git a/drivers/Makefile b/drivers/Makefile index 6d37564e783c..73df8e5a2fce 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -148,6 +148,7 @@ obj-$(CONFIG_BCMA) += bcma/ obj-$(CONFIG_VHOST_RING) += vhost/ obj-$(CONFIG_VHOST) += vhost/ obj-$(CONFIG_VLYNQ) += vlynq/ +obj-$(CONFIG_GREYBUS) += greybus/ obj-$(CONFIG_STAGING) += staging/ obj-y += platform/ diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig index dd61fdd400f0..68489d1f00bb 100644 --- a/drivers/auxdisplay/Kconfig +++ b/drivers/auxdisplay/Kconfig @@ -448,6 +448,11 @@ config PANEL_BOOT_MESSAGE choice prompt "Backlight initial state" default CHARLCD_BL_FLASH + ---help--- + Select the initial backlight state on boot or module load. + + Previously, there was no option for this: the backlight flashed + briefly on init. Now you can also turn it off/on. config CHARLCD_BL_OFF bool "Off" diff --git a/drivers/auxdisplay/charlcd.c b/drivers/auxdisplay/charlcd.c index 92745efefb54..bef6b85778b6 100644 --- a/drivers/auxdisplay/charlcd.c +++ b/drivers/auxdisplay/charlcd.c @@ -20,7 +20,7 @@ #include <generated/utsrelease.h> -#include <misc/charlcd.h> +#include "charlcd.h" #define LCD_MINOR 156 diff --git a/include/misc/charlcd.h b/drivers/auxdisplay/charlcd.h index 8cf6c18b0adb..00911ad0f3de 100644 --- a/include/misc/charlcd.h +++ b/drivers/auxdisplay/charlcd.h @@ -6,6 +6,9 @@ * Copyright (C) 2016-2017 Glider bvba */ +#ifndef _CHARLCD_H +#define _CHARLCD_H + struct charlcd { const struct charlcd_ops *ops; const unsigned char *char_conv; /* Optional */ @@ -37,3 +40,5 @@ int charlcd_register(struct charlcd *lcd); int charlcd_unregister(struct charlcd *lcd); void charlcd_poke(struct charlcd *lcd); + +#endif /* CHARLCD_H */ diff --git a/drivers/auxdisplay/hd44780.c b/drivers/auxdisplay/hd44780.c index ab15b64707ad..bcbe13092327 100644 --- a/drivers/auxdisplay/hd44780.c +++ b/drivers/auxdisplay/hd44780.c @@ -14,8 +14,7 @@ #include <linux/property.h> #include <linux/slab.h> -#include <misc/charlcd.h> - +#include "charlcd.h" enum hd44780_pin { /* Order does matter due to writing to GPIO array subsets! */ diff --git a/drivers/auxdisplay/panel.c b/drivers/auxdisplay/panel.c index e06de63497cf..85965953683e 100644 --- a/drivers/auxdisplay/panel.c +++ b/drivers/auxdisplay/panel.c @@ -55,7 +55,7 @@ #include <linux/io.h> #include <linux/uaccess.h> -#include <misc/charlcd.h> +#include "charlcd.h" #define KEYPAD_MINOR 185 @@ -1617,6 +1617,8 @@ static void panel_attach(struct parport *port) return; err_lcd_unreg: + if (scan_timer.function) + del_timer_sync(&scan_timer); if (lcd.enabled) charlcd_unregister(lcd.charlcd); err_unreg_device: diff --git a/drivers/base/regmap/Kconfig b/drivers/base/regmap/Kconfig index a4984136c19d..0fd6f97ee523 100644 --- a/drivers/base/regmap/Kconfig +++ b/drivers/base/regmap/Kconfig @@ -44,7 +44,7 @@ config REGMAP_IRQ config REGMAP_SOUNDWIRE tristate - depends on SOUNDWIRE_BUS + depends on SOUNDWIRE config REGMAP_SCCB tristate diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 3ac6a5d18071..b90dbcd99c03 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -965,6 +965,7 @@ static int read_per_ring_refs(struct xen_blkif_ring *ring, const char *dir) } } + err = -ENOMEM; for (i = 0; i < nr_grefs * XEN_BLKIF_REQS_PER_PAGE; i++) { req = kzalloc(sizeof(*req), GFP_KERNEL); if (!req) @@ -987,7 +988,7 @@ static int read_per_ring_refs(struct xen_blkif_ring *ring, const char *dir) err = xen_blkif_map(ring, ring_ref, nr_grefs, evtchn); if (err) { xenbus_dev_fatal(dev, err, "mapping ring-ref port %u", evtchn); - return err; + goto fail; } return 0; @@ -1007,8 +1008,7 @@ fail: } kfree(req); } - return -ENOMEM; - + return err; } static int connect_ring(struct backend_info *be) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 8dda62367816..c28ebf2810f1 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -2528,7 +2528,7 @@ static int cpufreq_boost_set_sw(int state) } ret = dev_pm_qos_update_request(policy->max_freq_req, policy->max); - if (ret) + if (ret < 0) break; } diff --git a/drivers/dma/dw-edma/dw-edma-core.h b/drivers/dma/dw-edma/dw-edma-core.h index b6cc90cbc9dc..4e5f9f6e901b 100644 --- a/drivers/dma/dw-edma/dw-edma-core.h +++ b/drivers/dma/dw-edma/dw-edma-core.h @@ -50,7 +50,7 @@ struct dw_edma_burst { struct dw_edma_region { phys_addr_t paddr; - dma_addr_t vaddr; + void __iomem *vaddr; size_t sz; }; diff --git a/drivers/dma/dw-edma/dw-edma-pcie.c b/drivers/dma/dw-edma/dw-edma-pcie.c index 4c96e1c948f2..dc85f55e1bb8 100644 --- a/drivers/dma/dw-edma/dw-edma-pcie.c +++ b/drivers/dma/dw-edma/dw-edma-pcie.c @@ -130,19 +130,19 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev, chip->id = pdev->devfn; chip->irq = pdev->irq; - dw->rg_region.vaddr = (dma_addr_t)pcim_iomap_table(pdev)[pdata->rg_bar]; + dw->rg_region.vaddr = pcim_iomap_table(pdev)[pdata->rg_bar]; dw->rg_region.vaddr += pdata->rg_off; dw->rg_region.paddr = pdev->resource[pdata->rg_bar].start; dw->rg_region.paddr += pdata->rg_off; dw->rg_region.sz = pdata->rg_sz; - dw->ll_region.vaddr = (dma_addr_t)pcim_iomap_table(pdev)[pdata->ll_bar]; + dw->ll_region.vaddr = pcim_iomap_table(pdev)[pdata->ll_bar]; dw->ll_region.vaddr += pdata->ll_off; dw->ll_region.paddr = pdev->resource[pdata->ll_bar].start; dw->ll_region.paddr += pdata->ll_off; dw->ll_region.sz = pdata->ll_sz; - dw->dt_region.vaddr = (dma_addr_t)pcim_iomap_table(pdev)[pdata->dt_bar]; + dw->dt_region.vaddr = pcim_iomap_table(pdev)[pdata->dt_bar]; dw->dt_region.vaddr += pdata->dt_off; dw->dt_region.paddr = pdev->resource[pdata->dt_bar].start; dw->dt_region.paddr += pdata->dt_off; @@ -158,17 +158,17 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev, pci_dbg(pdev, "Mode:\t%s\n", dw->mode == EDMA_MODE_LEGACY ? "Legacy" : "Unroll"); - pci_dbg(pdev, "Registers:\tBAR=%u, off=0x%.8lx, sz=0x%zx bytes, addr(v=%pa, p=%pa)\n", + pci_dbg(pdev, "Registers:\tBAR=%u, off=0x%.8lx, sz=0x%zx bytes, addr(v=%p, p=%pa)\n", pdata->rg_bar, pdata->rg_off, pdata->rg_sz, - &dw->rg_region.vaddr, &dw->rg_region.paddr); + dw->rg_region.vaddr, &dw->rg_region.paddr); - pci_dbg(pdev, "L. List:\tBAR=%u, off=0x%.8lx, sz=0x%zx bytes, addr(v=%pa, p=%pa)\n", + pci_dbg(pdev, "L. List:\tBAR=%u, off=0x%.8lx, sz=0x%zx bytes, addr(v=%p, p=%pa)\n", pdata->ll_bar, pdata->ll_off, pdata->ll_sz, - &dw->ll_region.vaddr, &dw->ll_region.paddr); + dw->ll_region.vaddr, &dw->ll_region.paddr); - pci_dbg(pdev, "Data:\tBAR=%u, off=0x%.8lx, sz=0x%zx bytes, addr(v=%pa, p=%pa)\n", + pci_dbg(pdev, "Data:\tBAR=%u, off=0x%.8lx, sz=0x%zx bytes, addr(v=%p, p=%pa)\n", pdata->dt_bar, pdata->dt_off, pdata->dt_sz, - &dw->dt_region.vaddr, &dw->dt_region.paddr); + dw->dt_region.vaddr, &dw->dt_region.paddr); pci_dbg(pdev, "Nr. IRQs:\t%u\n", dw->nr_irqs); diff --git a/drivers/dma/dw-edma/dw-edma-v0-core.c b/drivers/dma/dw-edma/dw-edma-v0-core.c index 8a3180ed49a6..692de47b1670 100644 --- a/drivers/dma/dw-edma/dw-edma-v0-core.c +++ b/drivers/dma/dw-edma/dw-edma-v0-core.c @@ -25,7 +25,7 @@ enum dw_edma_control { static inline struct dw_edma_v0_regs __iomem *__dw_regs(struct dw_edma *dw) { - return (struct dw_edma_v0_regs __iomem *)dw->rg_region.vaddr; + return dw->rg_region.vaddr; } #define SET(dw, name, value) \ @@ -192,13 +192,12 @@ u32 dw_edma_v0_core_status_abort_int(struct dw_edma *dw, enum dw_edma_dir dir) static void dw_edma_v0_core_write_chunk(struct dw_edma_chunk *chunk) { struct dw_edma_burst *child; - struct dw_edma_v0_lli *lli; - struct dw_edma_v0_llp *llp; + struct dw_edma_v0_lli __iomem *lli; + struct dw_edma_v0_llp __iomem *llp; u32 control = 0, i = 0; - u64 sar, dar, addr; int j; - lli = (struct dw_edma_v0_lli *)chunk->ll_region.vaddr; + lli = chunk->ll_region.vaddr; if (chunk->cb) control = DW_EDMA_V0_CB; @@ -214,17 +213,15 @@ static void dw_edma_v0_core_write_chunk(struct dw_edma_chunk *chunk) /* Transfer size */ SET_LL(&lli[i].transfer_size, child->sz); /* SAR - low, high */ - sar = cpu_to_le64(child->sar); - SET_LL(&lli[i].sar_low, lower_32_bits(sar)); - SET_LL(&lli[i].sar_high, upper_32_bits(sar)); + SET_LL(&lli[i].sar_low, lower_32_bits(child->sar)); + SET_LL(&lli[i].sar_high, upper_32_bits(child->sar)); /* DAR - low, high */ - dar = cpu_to_le64(child->dar); - SET_LL(&lli[i].dar_low, lower_32_bits(dar)); - SET_LL(&lli[i].dar_high, upper_32_bits(dar)); + SET_LL(&lli[i].dar_low, lower_32_bits(child->dar)); + SET_LL(&lli[i].dar_high, upper_32_bits(child->dar)); i++; } - llp = (struct dw_edma_v0_llp *)&lli[i]; + llp = (void __iomem *)&lli[i]; control = DW_EDMA_V0_LLP | DW_EDMA_V0_TCB; if (!chunk->cb) control |= DW_EDMA_V0_CB; @@ -232,9 +229,8 @@ static void dw_edma_v0_core_write_chunk(struct dw_edma_chunk *chunk) /* Channel control */ SET_LL(&llp->control, control); /* Linked list - low, high */ - addr = cpu_to_le64(chunk->ll_region.paddr); - SET_LL(&llp->llp_low, lower_32_bits(addr)); - SET_LL(&llp->llp_high, upper_32_bits(addr)); + SET_LL(&llp->llp_low, lower_32_bits(chunk->ll_region.paddr)); + SET_LL(&llp->llp_high, upper_32_bits(chunk->ll_region.paddr)); } void dw_edma_v0_core_start(struct dw_edma_chunk *chunk, bool first) @@ -242,7 +238,6 @@ void dw_edma_v0_core_start(struct dw_edma_chunk *chunk, bool first) struct dw_edma_chan *chan = chunk->chan; struct dw_edma *dw = chan->chip->dw; u32 tmp; - u64 llp; dw_edma_v0_core_write_chunk(chunk); @@ -262,9 +257,10 @@ void dw_edma_v0_core_start(struct dw_edma_chunk *chunk, bool first) SET_CH(dw, chan->dir, chan->id, ch_control1, (DW_EDMA_V0_CCS | DW_EDMA_V0_LLE)); /* Linked list - low, high */ - llp = cpu_to_le64(chunk->ll_region.paddr); - SET_CH(dw, chan->dir, chan->id, llp_low, lower_32_bits(llp)); - SET_CH(dw, chan->dir, chan->id, llp_high, upper_32_bits(llp)); + SET_CH(dw, chan->dir, chan->id, llp_low, + lower_32_bits(chunk->ll_region.paddr)); + SET_CH(dw, chan->dir, chan->id, llp_high, + upper_32_bits(chunk->ll_region.paddr)); } /* Doorbell */ SET_RW(dw, chan->dir, doorbell, diff --git a/drivers/dma/dw-edma/dw-edma-v0-debugfs.c b/drivers/dma/dw-edma/dw-edma-v0-debugfs.c index 3226f528cc11..42739508c0d8 100644 --- a/drivers/dma/dw-edma/dw-edma-v0-debugfs.c +++ b/drivers/dma/dw-edma/dw-edma-v0-debugfs.c @@ -14,7 +14,7 @@ #include "dw-edma-core.h" #define REGS_ADDR(name) \ - ((dma_addr_t *)®s->name) + ((void __force *)®s->name) #define REGISTER(name) \ { #name, REGS_ADDR(name) } @@ -40,36 +40,37 @@ static struct dentry *base_dir; static struct dw_edma *dw; -static struct dw_edma_v0_regs *regs; +static struct dw_edma_v0_regs __iomem *regs; static struct { - void *start; - void *end; + void __iomem *start; + void __iomem *end; } lim[2][EDMA_V0_MAX_NR_CH]; struct debugfs_entries { - char name[24]; + const char *name; dma_addr_t *reg; }; static int dw_edma_debugfs_u32_get(void *data, u64 *val) { + void __iomem *reg = (void __force __iomem *)data; if (dw->mode == EDMA_MODE_LEGACY && - data >= (void *)®s->type.legacy.ch) { - void *ptr = (void *)®s->type.legacy.ch; + reg >= (void __iomem *)®s->type.legacy.ch) { + void __iomem *ptr = ®s->type.legacy.ch; u32 viewport_sel = 0; unsigned long flags; u16 ch; for (ch = 0; ch < dw->wr_ch_cnt; ch++) - if (lim[0][ch].start >= data && data < lim[0][ch].end) { - ptr += (data - lim[0][ch].start); + if (lim[0][ch].start >= reg && reg < lim[0][ch].end) { + ptr += (reg - lim[0][ch].start); goto legacy_sel_wr; } for (ch = 0; ch < dw->rd_ch_cnt; ch++) - if (lim[1][ch].start >= data && data < lim[1][ch].end) { - ptr += (data - lim[1][ch].start); + if (lim[1][ch].start >= reg && reg < lim[1][ch].end) { + ptr += (reg - lim[1][ch].start); goto legacy_sel_rd; } @@ -86,7 +87,7 @@ legacy_sel_wr: raw_spin_unlock_irqrestore(&dw->lock, flags); } else { - *val = readl(data); + *val = readl(reg); } return 0; @@ -105,7 +106,7 @@ static void dw_edma_debugfs_create_x32(const struct debugfs_entries entries[], } } -static void dw_edma_debugfs_regs_ch(struct dw_edma_v0_ch_regs *regs, +static void dw_edma_debugfs_regs_ch(struct dw_edma_v0_ch_regs __iomem *regs, struct dentry *dir) { int nr_entries; @@ -288,7 +289,7 @@ void dw_edma_v0_debugfs_on(struct dw_edma_chip *chip) if (!dw) return; - regs = (struct dw_edma_v0_regs *)dw->rg_region.vaddr; + regs = dw->rg_region.vaddr; if (!regs) return; diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 89d710899010..de8bfd9a76e9 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -142,7 +142,7 @@ enum d40_events { * when the DMA hw is powered off. * TODO: Add save/restore of D40_DREG_GCC on dma40 v3 or later, if that works. */ -static u32 d40_backup_regs[] = { +static __maybe_unused u32 d40_backup_regs[] = { D40_DREG_LCPA, D40_DREG_LCLA, D40_DREG_PRMSE, @@ -211,7 +211,7 @@ static u32 d40_backup_regs_v4b[] = { #define BACKUP_REGS_SZ_V4B ARRAY_SIZE(d40_backup_regs_v4b) -static u32 d40_backup_regs_chan[] = { +static __maybe_unused u32 d40_backup_regs_chan[] = { D40_CHAN_REG_SSCFG, D40_CHAN_REG_SSELT, D40_CHAN_REG_SSPTR, diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c index d6e919d3936a..1311de74bfdd 100644 --- a/drivers/dma/stm32-mdma.c +++ b/drivers/dma/stm32-mdma.c @@ -1366,7 +1366,7 @@ static irqreturn_t stm32_mdma_irq_handler(int irq, void *devid) chan = &dmadev->chan[id]; if (!chan) { - dev_err(chan2dev(chan), "MDMA channel not initialized\n"); + dev_dbg(mdma2dev(dmadev), "MDMA channel not initialized\n"); goto exit; } diff --git a/drivers/dma/tegra210-adma.c b/drivers/dma/tegra210-adma.c index 2805853e963f..b33cf6e8ab8e 100644 --- a/drivers/dma/tegra210-adma.c +++ b/drivers/dma/tegra210-adma.c @@ -712,7 +712,7 @@ static struct dma_chan *tegra_dma_of_xlate(struct of_phandle_args *dma_spec, return chan; } -static int tegra_adma_runtime_suspend(struct device *dev) +static int __maybe_unused tegra_adma_runtime_suspend(struct device *dev) { struct tegra_adma *tdma = dev_get_drvdata(dev); struct tegra_adma_chan_regs *ch_reg; @@ -744,7 +744,7 @@ clk_disable: return 0; } -static int tegra_adma_runtime_resume(struct device *dev) +static int __maybe_unused tegra_adma_runtime_resume(struct device *dev) { struct tegra_adma *tdma = dev_get_drvdata(dev); struct tegra_adma_chan_regs *ch_reg; diff --git a/drivers/dma/ti/omap-dma.c b/drivers/dma/ti/omap-dma.c index ba2489d4ea24..ba27802efcd0 100644 --- a/drivers/dma/ti/omap-dma.c +++ b/drivers/dma/ti/omap-dma.c @@ -1234,7 +1234,7 @@ static struct dma_async_tx_descriptor *omap_dma_prep_dma_interleaved( if (src_icg) { d->ccr |= CCR_SRC_AMODE_DBLIDX; d->ei = 1; - d->fi = src_icg; + d->fi = src_icg + 1; } else if (xt->src_inc) { d->ccr |= CCR_SRC_AMODE_POSTINC; d->fi = 0; @@ -1249,7 +1249,7 @@ static struct dma_async_tx_descriptor *omap_dma_prep_dma_interleaved( if (dst_icg) { d->ccr |= CCR_DST_AMODE_DBLIDX; sg->ei = 1; - sg->fi = dst_icg; + sg->fi = dst_icg + 1; } else if (xt->dst_inc) { d->ccr |= CCR_DST_AMODE_POSTINC; sg->fi = 0; diff --git a/drivers/firmware/efi/libstub/efi-stub-helper.c b/drivers/firmware/efi/libstub/efi-stub-helper.c index 1db780c0f07b..3caae7f2cf56 100644 --- a/drivers/firmware/efi/libstub/efi-stub-helper.c +++ b/drivers/firmware/efi/libstub/efi-stub-helper.c @@ -927,17 +927,33 @@ fail: return status; } +#define GET_EFI_CONFIG_TABLE(bits) \ +static void *get_efi_config_table##bits(efi_system_table_t *_sys_table, \ + efi_guid_t guid) \ +{ \ + efi_system_table_##bits##_t *sys_table; \ + efi_config_table_##bits##_t *tables; \ + int i; \ + \ + sys_table = (typeof(sys_table))_sys_table; \ + tables = (typeof(tables))(unsigned long)sys_table->tables; \ + \ + for (i = 0; i < sys_table->nr_tables; i++) { \ + if (efi_guidcmp(tables[i].guid, guid) != 0) \ + continue; \ + \ + return (void *)(unsigned long)tables[i].table; \ + } \ + \ + return NULL; \ +} +GET_EFI_CONFIG_TABLE(32) +GET_EFI_CONFIG_TABLE(64) + void *get_efi_config_table(efi_system_table_t *sys_table, efi_guid_t guid) { - efi_config_table_t *tables = (efi_config_table_t *)sys_table->tables; - int i; - - for (i = 0; i < sys_table->nr_tables; i++) { - if (efi_guidcmp(tables[i].guid, guid) != 0) - continue; - - return (void *)tables[i].table; - } - - return NULL; + if (efi_is_64bit()) + return get_efi_config_table64(sys_table, guid); + else + return get_efi_config_table32(sys_table, guid); } diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index 1cf639a51178..04b8ac4432c7 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -4869,7 +4869,7 @@ static void gfx_v9_0_ring_soft_recovery(struct amdgpu_ring *ring, unsigned vmid) value = REG_SET_FIELD(value, SQ_CMD, MODE, 0x01); value = REG_SET_FIELD(value, SQ_CMD, CHECK_VMID, 1); value = REG_SET_FIELD(value, SQ_CMD, VM_ID, vmid); - WREG32(mmSQ_CMD, value); + WREG32_SOC15(GC, 0, mmSQ_CMD, value); } static void gfx_v9_0_set_gfx_eop_interrupt_state(struct amdgpu_device *adev, diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index fa20201eef3a..cbc480a33376 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -23,6 +23,7 @@ */ #include <linux/slab.h> +#include <linux/mm.h> #include "dm_services.h" @@ -1171,8 +1172,8 @@ bool dc_post_update_surfaces_to_stream(struct dc *dc) struct dc_state *dc_create_state(struct dc *dc) { - struct dc_state *context = kzalloc(sizeof(struct dc_state), - GFP_KERNEL); + struct dc_state *context = kvzalloc(sizeof(struct dc_state), + GFP_KERNEL); if (!context) return NULL; @@ -1192,11 +1193,11 @@ struct dc_state *dc_create_state(struct dc *dc) struct dc_state *dc_copy_state(struct dc_state *src_ctx) { int i, j; - struct dc_state *new_ctx = kmemdup(src_ctx, - sizeof(struct dc_state), GFP_KERNEL); + struct dc_state *new_ctx = kvmalloc(sizeof(struct dc_state), GFP_KERNEL); if (!new_ctx) return NULL; + memcpy(new_ctx, src_ctx, sizeof(struct dc_state)); for (i = 0; i < MAX_PIPES; i++) { struct pipe_ctx *cur_pipe = &new_ctx->res_ctx.pipe_ctx[i]; @@ -1230,7 +1231,7 @@ static void dc_state_free(struct kref *kref) { struct dc_state *context = container_of(kref, struct dc_state, refcount); dc_resource_state_destruct(context); - kfree(context); + kvfree(context); } void dc_release_state(struct dc_state *context) diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c index 4c7e31cb45ff..a5d1494a3dc4 100644 --- a/drivers/gpu/drm/ast/ast_main.c +++ b/drivers/gpu/drm/ast/ast_main.c @@ -131,8 +131,8 @@ static int ast_detect_chip(struct drm_device *dev, bool *need_post) /* Enable extended register access */ - ast_enable_mmio(dev); ast_open_key(ast); + ast_enable_mmio(dev); /* Find out whether P2A works or whether to use device-tree */ ast_detect_config_mode(dev, &scu_rev); @@ -576,6 +576,9 @@ void ast_driver_unload(struct drm_device *dev) { struct ast_private *ast = dev->dev_private; + /* enable standard VGA decode */ + ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x04); + ast_release_firmware(dev); kfree(ast->dp501_fw_addr); ast_mode_fini(dev); diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index ffccbef962a4..a1cb020e07e5 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -604,7 +604,7 @@ static int ast_crtc_mode_set(struct drm_crtc *crtc, return -EINVAL; ast_open_key(ast); - ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa1, 0xff, 0x04); + ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x06); ast_set_std_reg(crtc, adjusted_mode, &vbios_mode); ast_set_crtc_reg(crtc, adjusted_mode, &vbios_mode); diff --git a/drivers/gpu/drm/ast/ast_post.c b/drivers/gpu/drm/ast/ast_post.c index f7d421359d56..c1d1ac51d1c2 100644 --- a/drivers/gpu/drm/ast/ast_post.c +++ b/drivers/gpu/drm/ast/ast_post.c @@ -46,7 +46,7 @@ void ast_enable_mmio(struct drm_device *dev) { struct ast_private *ast = dev->dev_private; - ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa1, 0xff, 0x04); + ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x06); } diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c index 9f3fd7d96a69..75baff657e43 100644 --- a/drivers/gpu/drm/i915/gvt/scheduler.c +++ b/drivers/gpu/drm/i915/gvt/scheduler.c @@ -1528,9 +1528,9 @@ intel_vgpu_create_workload(struct intel_vgpu *vgpu, int ring_id, if (!intel_gvt_ggtt_validate_range(vgpu, workload->wa_ctx.indirect_ctx.guest_gma, workload->wa_ctx.indirect_ctx.size)) { - kmem_cache_free(s->workloads, workload); gvt_vgpu_err("invalid wa_ctx at: 0x%lx\n", workload->wa_ctx.indirect_ctx.guest_gma); + kmem_cache_free(s->workloads, workload); return ERR_PTR(-EINVAL); } } @@ -1542,9 +1542,9 @@ intel_vgpu_create_workload(struct intel_vgpu *vgpu, int ring_id, if (!intel_gvt_ggtt_validate_range(vgpu, workload->wa_ctx.per_ctx.guest_gma, CACHELINE_BYTES)) { - kmem_cache_free(s->workloads, workload); gvt_vgpu_err("invalid per_ctx at: 0x%lx\n", workload->wa_ctx.per_ctx.guest_gma); + kmem_cache_free(s->workloads, workload); return ERR_PTR(-EINVAL); } } diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index 126703816794..5c36c75232e6 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -771,16 +771,20 @@ nv50_msto_atomic_check(struct drm_encoder *encoder, struct nv50_head_atom *asyh = nv50_head_atom(crtc_state); int slots; - /* When restoring duplicated states, we need to make sure that the - * bw remains the same and avoid recalculating it, as the connector's - * bpc may have changed after the state was duplicated - */ - if (!state->duplicated) - asyh->dp.pbn = - drm_dp_calc_pbn_mode(crtc_state->adjusted_mode.clock, - connector->display_info.bpc * 3); + if (crtc_state->mode_changed || crtc_state->connectors_changed) { + /* + * When restoring duplicated states, we need to make sure that + * the bw remains the same and avoid recalculating it, as the + * connector's bpc may have changed after the state was + * duplicated + */ + if (!state->duplicated) { + const int bpp = connector->display_info.bpc * 3; + const int clock = crtc_state->adjusted_mode.clock; + + asyh->dp.pbn = drm_dp_calc_pbn_mode(clock, bpp); + } - if (crtc_state->mode_changed) { slots = drm_dp_atomic_find_vcpi_slots(state, &mstm->mgr, mstc->port, asyh->dp.pbn); diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c index 35ddbec1375a..671c90f34ede 100644 --- a/drivers/gpu/drm/scheduler/sched_entity.c +++ b/drivers/gpu/drm/scheduler/sched_entity.c @@ -95,7 +95,7 @@ static bool drm_sched_entity_is_idle(struct drm_sched_entity *entity) rmb(); /* for list_empty to work without lock */ if (list_empty(&entity->list) || - spsc_queue_peek(&entity->job_queue) == NULL) + spsc_queue_count(&entity->job_queue) == 0) return true; return false; @@ -281,7 +281,7 @@ void drm_sched_entity_fini(struct drm_sched_entity *entity) /* Consumption of existing IBs wasn't completed. Forcefully * remove them here. */ - if (spsc_queue_peek(&entity->job_queue)) { + if (spsc_queue_count(&entity->job_queue)) { if (sched) { /* Park the kernel for a moment to make sure it isn't processing * our enity. diff --git a/drivers/greybus/Kconfig b/drivers/greybus/Kconfig new file mode 100644 index 000000000000..b84fcaf8b105 --- /dev/null +++ b/drivers/greybus/Kconfig @@ -0,0 +1,32 @@ +# SPDX-License-Identifier: GPL-2.0 +menuconfig GREYBUS + tristate "Greybus support" + depends on SYSFS + ---help--- + This option enables the Greybus driver core. Greybus is an + hardware protocol that was designed to provide Unipro with a + sane application layer. It was originally designed for the + ARA project, a module phone system, but has shown up in other + phones, and can be tunneled over other busses in order to + control hardware devices. + + Say Y here to enable support for these types of drivers. + + To compile this code as a module, chose M here: the module + will be called greybus.ko + +if GREYBUS + +config GREYBUS_ES2 + tristate "Greybus ES3 USB host controller" + depends on USB + ---help--- + Select this option if you have a Toshiba ES3 USB device that + acts as a Greybus "host controller". This device is a bridge + from a USB device to a Unipro network. + + To compile this code as a module, chose M here: the module + will be called gb-es2.ko + +endif # GREYBUS + diff --git a/drivers/greybus/Makefile b/drivers/greybus/Makefile new file mode 100644 index 000000000000..9bccdd229aa2 --- /dev/null +++ b/drivers/greybus/Makefile @@ -0,0 +1,26 @@ +# SPDX-License-Identifier: GPL-2.0 +# Greybus core +greybus-y := core.o \ + debugfs.o \ + hd.o \ + manifest.o \ + module.o \ + interface.o \ + bundle.o \ + connection.o \ + control.o \ + svc.o \ + svc_watchdog.o \ + operation.o + +obj-$(CONFIG_GREYBUS) += greybus.o + +# needed for trace events +ccflags-y += -I$(src) + +# Greybus Host controller drivers +gb-es2-y := es2.o + +obj-$(CONFIG_GREYBUS_ES2) += gb-es2.o + + diff --git a/drivers/greybus/arpc.h b/drivers/greybus/arpc.h new file mode 100644 index 000000000000..c8b83c5cfa79 --- /dev/null +++ b/drivers/greybus/arpc.h @@ -0,0 +1,63 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ +/* + * Copyright(c) 2016 Google Inc. All rights reserved. + * Copyright(c) 2016 Linaro Ltd. All rights reserved. + */ + +#ifndef __ARPC_H +#define __ARPC_H + +/* APBridgeA RPC (ARPC) */ + +enum arpc_result { + ARPC_SUCCESS = 0x00, + ARPC_NO_MEMORY = 0x01, + ARPC_INVALID = 0x02, + ARPC_TIMEOUT = 0x03, + ARPC_UNKNOWN_ERROR = 0xff, +}; + +struct arpc_request_message { + __le16 id; /* RPC unique id */ + __le16 size; /* Size in bytes of header + payload */ + __u8 type; /* RPC type */ + __u8 data[0]; /* ARPC data */ +} __packed; + +struct arpc_response_message { + __le16 id; /* RPC unique id */ + __u8 result; /* Result of RPC */ +} __packed; + +/* ARPC requests */ +#define ARPC_TYPE_CPORT_CONNECTED 0x01 +#define ARPC_TYPE_CPORT_QUIESCE 0x02 +#define ARPC_TYPE_CPORT_CLEAR 0x03 +#define ARPC_TYPE_CPORT_FLUSH 0x04 +#define ARPC_TYPE_CPORT_SHUTDOWN 0x05 + +struct arpc_cport_connected_req { + __le16 cport_id; +} __packed; + +struct arpc_cport_quiesce_req { + __le16 cport_id; + __le16 peer_space; + __le16 timeout; +} __packed; + +struct arpc_cport_clear_req { + __le16 cport_id; +} __packed; + +struct arpc_cport_flush_req { + __le16 cport_id; +} __packed; + +struct arpc_cport_shutdown_req { + __le16 cport_id; + __le16 timeout; + __u8 phase; +} __packed; + +#endif /* __ARPC_H */ diff --git a/drivers/staging/greybus/bundle.c b/drivers/greybus/bundle.c index 3f702db9e098..84660729538b 100644 --- a/drivers/staging/greybus/bundle.c +++ b/drivers/greybus/bundle.c @@ -6,7 +6,7 @@ * Copyright 2014-2015 Linaro Ltd. */ -#include "greybus.h" +#include <linux/greybus.h> #include "greybus_trace.h" static ssize_t bundle_class_show(struct device *dev, diff --git a/drivers/staging/greybus/connection.c b/drivers/greybus/connection.c index eda964208cce..fc8f57f97ce6 100644 --- a/drivers/staging/greybus/connection.c +++ b/drivers/greybus/connection.c @@ -7,8 +7,8 @@ */ #include <linux/workqueue.h> +#include <linux/greybus.h> -#include "greybus.h" #include "greybus_trace.h" #define GB_CONNECTION_CPORT_QUIESCE_TIMEOUT 1000 diff --git a/drivers/staging/greybus/control.c b/drivers/greybus/control.c index a9e8b6036cac..359a25841973 100644 --- a/drivers/staging/greybus/control.c +++ b/drivers/greybus/control.c @@ -9,7 +9,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> -#include "greybus.h" +#include <linux/greybus.h> /* Highest control-protocol version supported */ #define GB_CONTROL_VERSION_MAJOR 0 diff --git a/drivers/staging/greybus/core.c b/drivers/greybus/core.c index d6b0d49130c0..e546c6431877 100644 --- a/drivers/staging/greybus/core.c +++ b/drivers/greybus/core.c @@ -9,7 +9,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #define CREATE_TRACE_POINTS -#include "greybus.h" +#include <linux/greybus.h> #include "greybus_trace.h" #define GB_BUNDLE_AUTOSUSPEND_MS 3000 diff --git a/drivers/staging/greybus/debugfs.c b/drivers/greybus/debugfs.c index 56e20c30feb5..e102d7badb9d 100644 --- a/drivers/staging/greybus/debugfs.c +++ b/drivers/greybus/debugfs.c @@ -7,8 +7,7 @@ */ #include <linux/debugfs.h> - -#include "greybus.h" +#include <linux/greybus.h> static struct dentry *gb_debug_root; diff --git a/drivers/staging/greybus/es2.c b/drivers/greybus/es2.c index be6af18cec31..366716f11b1a 100644 --- a/drivers/staging/greybus/es2.c +++ b/drivers/greybus/es2.c @@ -11,12 +11,11 @@ #include <linux/kfifo.h> #include <linux/debugfs.h> #include <linux/list.h> +#include <linux/greybus.h> #include <asm/unaligned.h> #include "arpc.h" -#include "greybus.h" #include "greybus_trace.h" -#include "connection.h" /* Default timeout for USB vendor requests. */ diff --git a/drivers/staging/greybus/greybus_trace.h b/drivers/greybus/greybus_trace.h index 7b5e2c6b1f6b..1bc9f1275c65 100644 --- a/drivers/staging/greybus/greybus_trace.h +++ b/drivers/greybus/greybus_trace.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus driver and device API * diff --git a/drivers/staging/greybus/hd.c b/drivers/greybus/hd.c index 969f86697673..72b21bf2d7d3 100644 --- a/drivers/staging/greybus/hd.c +++ b/drivers/greybus/hd.c @@ -8,8 +8,8 @@ #include <linux/kernel.h> #include <linux/slab.h> +#include <linux/greybus.h> -#include "greybus.h" #include "greybus_trace.h" EXPORT_TRACEPOINT_SYMBOL_GPL(gb_hd_create); @@ -31,7 +31,7 @@ int gb_hd_output(struct gb_host_device *hd, void *req, u16 size, u8 cmd, EXPORT_SYMBOL_GPL(gb_hd_output); static ssize_t bus_id_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, char *buf) { struct gb_host_device *hd = to_gb_host_device(dev); @@ -70,7 +70,7 @@ EXPORT_SYMBOL_GPL(gb_hd_cport_release_reserved); /* Locking: Caller guarantees serialisation */ int gb_hd_cport_allocate(struct gb_host_device *hd, int cport_id, - unsigned long flags) + unsigned long flags) { struct ida *id_map = &hd->cport_id_map; int ida_start, ida_end; @@ -122,9 +122,9 @@ struct device_type greybus_hd_type = { }; struct gb_host_device *gb_hd_create(struct gb_hd_driver *driver, - struct device *parent, - size_t buffer_size_max, - size_t num_cports) + struct device *parent, + size_t buffer_size_max, + size_t num_cports) { struct gb_host_device *hd; int ret; diff --git a/drivers/staging/greybus/interface.c b/drivers/greybus/interface.c index d7b5b89a2f40..67dbe6fda9a1 100644 --- a/drivers/staging/greybus/interface.c +++ b/drivers/greybus/interface.c @@ -7,8 +7,8 @@ */ #include <linux/delay.h> +#include <linux/greybus.h> -#include "greybus.h" #include "greybus_trace.h" #define GB_INTERFACE_MODE_SWITCH_TIMEOUT 2000 diff --git a/drivers/staging/greybus/manifest.c b/drivers/greybus/manifest.c index 08db49264f2b..dd7040697bde 100644 --- a/drivers/staging/greybus/manifest.c +++ b/drivers/greybus/manifest.c @@ -6,7 +6,7 @@ * Copyright 2014-2015 Linaro Ltd. */ -#include "greybus.h" +#include <linux/greybus.h> static const char *get_descriptor_type_string(u8 type) { @@ -104,15 +104,15 @@ static int identify_descriptor(struct gb_interface *intf, size_t expected_size; if (size < sizeof(*desc_header)) { - dev_err(&intf->dev, "manifest too small (%zu < %zu)\n", - size, sizeof(*desc_header)); + dev_err(&intf->dev, "manifest too small (%zu < %zu)\n", size, + sizeof(*desc_header)); return -EINVAL; /* Must at least have header */ } desc_size = le16_to_cpu(desc_header->size); if (desc_size > size) { dev_err(&intf->dev, "descriptor too big (%zu > %zu)\n", - desc_size, size); + desc_size, size); return -EINVAL; } @@ -139,22 +139,22 @@ static int identify_descriptor(struct gb_interface *intf, case GREYBUS_TYPE_INVALID: default: dev_err(&intf->dev, "invalid descriptor type (%u)\n", - desc_header->type); + desc_header->type); return -EINVAL; } if (desc_size < expected_size) { dev_err(&intf->dev, "%s descriptor too small (%zu < %zu)\n", - get_descriptor_type_string(desc_header->type), - desc_size, expected_size); + get_descriptor_type_string(desc_header->type), + desc_size, expected_size); return -EINVAL; } /* Descriptor bigger than what we expect */ if (desc_size > expected_size) { dev_warn(&intf->dev, "%s descriptor size mismatch (want %zu got %zu)\n", - get_descriptor_type_string(desc_header->type), - expected_size, desc_size); + get_descriptor_type_string(desc_header->type), + expected_size, desc_size); } descriptor = kzalloc(sizeof(*descriptor), GFP_KERNEL); @@ -208,7 +208,7 @@ static char *gb_string_get(struct gb_interface *intf, u8 string_id) /* Allocate an extra byte so we can guarantee it's NUL-terminated */ string = kmemdup(&desc_string->string, desc_string->length + 1, - GFP_KERNEL); + GFP_KERNEL); if (!string) return ERR_PTR(-ENOMEM); string[desc_string->length] = '\0'; @@ -264,8 +264,7 @@ static u32 gb_manifest_parse_cports(struct gb_bundle *bundle) desc_cport = tmp->data; if (cport_id == le16_to_cpu(desc_cport->id)) { dev_err(&bundle->dev, - "duplicate CPort %u found\n", - cport_id); + "duplicate CPort %u found\n", cport_id); goto exit; } } @@ -277,7 +276,7 @@ static u32 gb_manifest_parse_cports(struct gb_bundle *bundle) return 0; bundle->cport_desc = kcalloc(count, sizeof(*bundle->cport_desc), - GFP_KERNEL); + GFP_KERNEL); if (!bundle->cport_desc) goto exit; @@ -287,7 +286,7 @@ static u32 gb_manifest_parse_cports(struct gb_bundle *bundle) list_for_each_entry_safe(desc, next, &list, links) { desc_cport = desc->data; memcpy(&bundle->cport_desc[i++], desc_cport, - sizeof(*desc_cport)); + sizeof(*desc_cport)); /* Release the cport descriptor */ release_manifest_descriptor(desc); @@ -333,9 +332,9 @@ static u32 gb_manifest_parse_bundles(struct gb_interface *intf) /* Ignore any legacy control bundles */ if (bundle_id == GB_CONTROL_BUNDLE_ID) { dev_dbg(&intf->dev, "%s - ignoring control bundle\n", - __func__); + __func__); release_cport_descriptors(&intf->manifest_descs, - bundle_id); + bundle_id); continue; } @@ -468,7 +467,7 @@ bool gb_manifest_parse(struct gb_interface *intf, void *data, size_t size) /* we have to have at _least_ the manifest header */ if (size < sizeof(*header)) { dev_err(&intf->dev, "short manifest (%zu < %zu)\n", - size, sizeof(*header)); + size, sizeof(*header)); return false; } @@ -478,15 +477,15 @@ bool gb_manifest_parse(struct gb_interface *intf, void *data, size_t size) manifest_size = le16_to_cpu(header->size); if (manifest_size != size) { dev_err(&intf->dev, "manifest size mismatch (%zu != %u)\n", - size, manifest_size); + size, manifest_size); return false; } /* Validate major/minor number */ if (header->version_major > GREYBUS_VERSION_MAJOR) { dev_err(&intf->dev, "manifest version too new (%u.%u > %u.%u)\n", - header->version_major, header->version_minor, - GREYBUS_VERSION_MAJOR, GREYBUS_VERSION_MINOR); + header->version_major, header->version_minor, + GREYBUS_VERSION_MAJOR, GREYBUS_VERSION_MINOR); return false; } @@ -513,7 +512,7 @@ bool gb_manifest_parse(struct gb_interface *intf, void *data, size_t size) } if (found != 1) { dev_err(&intf->dev, "manifest must have 1 interface descriptor (%u found)\n", - found); + found); result = false; goto out; } diff --git a/drivers/staging/greybus/module.c b/drivers/greybus/module.c index b251a53d0e8e..36f77f9e1d74 100644 --- a/drivers/staging/greybus/module.c +++ b/drivers/greybus/module.c @@ -6,7 +6,7 @@ * Copyright 2016 Linaro Ltd. */ -#include "greybus.h" +#include <linux/greybus.h> #include "greybus_trace.h" static ssize_t eject_store(struct device *dev, diff --git a/drivers/staging/greybus/operation.c b/drivers/greybus/operation.c index fe268f7b63ed..8459e9bc0749 100644 --- a/drivers/staging/greybus/operation.c +++ b/drivers/greybus/operation.c @@ -12,8 +12,8 @@ #include <linux/sched.h> #include <linux/wait.h> #include <linux/workqueue.h> +#include <linux/greybus.h> -#include "greybus.h" #include "greybus_trace.h" static struct kmem_cache *gb_operation_cache; diff --git a/drivers/staging/greybus/svc.c b/drivers/greybus/svc.c index 05bc45287b87..ce7740ef449b 100644 --- a/drivers/staging/greybus/svc.c +++ b/drivers/greybus/svc.c @@ -8,8 +8,7 @@ #include <linux/debugfs.h> #include <linux/workqueue.h> - -#include "greybus.h" +#include <linux/greybus.h> #define SVC_INTF_EJECT_TIMEOUT 9000 #define SVC_INTF_ACTIVATE_TIMEOUT 6000 diff --git a/drivers/staging/greybus/svc_watchdog.c b/drivers/greybus/svc_watchdog.c index 7868ad8211c5..b6b1682c19c4 100644 --- a/drivers/staging/greybus/svc_watchdog.c +++ b/drivers/greybus/svc_watchdog.c @@ -8,7 +8,7 @@ #include <linux/delay.h> #include <linux/suspend.h> #include <linux/workqueue.h> -#include "greybus.h" +#include <linux/greybus.h> #define SVC_WATCHDOG_PERIOD (2 * HZ) diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h index 999f80a63bff..e70783e33680 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ #undef TRACE_SYSTEM #define TRACE_SYSTEM hyperv diff --git a/drivers/hwtracing/intel_th/msu.h b/drivers/hwtracing/intel_th/msu.h index 574c16004cb2..13d9b141daaa 100644 --- a/drivers/hwtracing/intel_th/msu.h +++ b/drivers/hwtracing/intel_th/msu.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Intel(R) Trace Hub Memory Storage Unit (MSU) data structures * diff --git a/drivers/hwtracing/intel_th/pti.h b/drivers/hwtracing/intel_th/pti.h index e9381babc84c..7dfc0431333b 100644 --- a/drivers/hwtracing/intel_th/pti.h +++ b/drivers/hwtracing/intel_th/pti.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Intel(R) Trace Hub PTI output data structures * diff --git a/drivers/i2c/busses/i2c-emev2.c b/drivers/i2c/busses/i2c-emev2.c index 35b302d983e0..959d4912ec0d 100644 --- a/drivers/i2c/busses/i2c-emev2.c +++ b/drivers/i2c/busses/i2c-emev2.c @@ -69,6 +69,7 @@ struct em_i2c_device { struct completion msg_done; struct clk *sclk; struct i2c_client *slave; + int irq; }; static inline void em_clear_set_bit(struct em_i2c_device *priv, u8 clear, u8 set, u8 reg) @@ -339,6 +340,12 @@ static int em_i2c_unreg_slave(struct i2c_client *slave) writeb(0, priv->base + I2C_OFS_SVA0); + /* + * Wait for interrupt to finish. New slave irqs cannot happen because we + * cleared the slave address and, thus, only extension codes will be + * detected which do not use the slave ptr. + */ + synchronize_irq(priv->irq); priv->slave = NULL; return 0; @@ -355,7 +362,7 @@ static int em_i2c_probe(struct platform_device *pdev) { struct em_i2c_device *priv; struct resource *r; - int irq, ret; + int ret; priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) @@ -390,8 +397,8 @@ static int em_i2c_probe(struct platform_device *pdev) em_i2c_reset(&priv->adap); - irq = platform_get_irq(pdev, 0); - ret = devm_request_irq(&pdev->dev, irq, em_i2c_irq_handler, 0, + priv->irq = platform_get_irq(pdev, 0); + ret = devm_request_irq(&pdev->dev, priv->irq, em_i2c_irq_handler, 0, "em_i2c", priv); if (ret) goto err_clk; @@ -401,7 +408,8 @@ static int em_i2c_probe(struct platform_device *pdev) if (ret) goto err_clk; - dev_info(&pdev->dev, "Added i2c controller %d, irq %d\n", priv->adap.nr, irq); + dev_info(&pdev->dev, "Added i2c controller %d, irq %d\n", priv->adap.nr, + priv->irq); return 0; diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index b1b8b938d7f4..15f6cde6452f 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -273,8 +273,8 @@ static inline unsigned char imx_i2c_read_reg(struct imx_i2c_struct *i2c_imx, } /* Functions for DMA support */ -static int i2c_imx_dma_request(struct imx_i2c_struct *i2c_imx, - dma_addr_t phy_addr) +static void i2c_imx_dma_request(struct imx_i2c_struct *i2c_imx, + dma_addr_t phy_addr) { struct imx_i2c_dma *dma; struct dma_slave_config dma_sconfig; @@ -283,7 +283,7 @@ static int i2c_imx_dma_request(struct imx_i2c_struct *i2c_imx, dma = devm_kzalloc(dev, sizeof(*dma), GFP_KERNEL); if (!dma) - return -ENOMEM; + return; dma->chan_tx = dma_request_chan(dev, "tx"); if (IS_ERR(dma->chan_tx)) { @@ -328,7 +328,7 @@ static int i2c_imx_dma_request(struct imx_i2c_struct *i2c_imx, dev_info(dev, "using %s (tx) and %s (rx) for DMA transfers\n", dma_chan_name(dma->chan_tx), dma_chan_name(dma->chan_rx)); - return 0; + return; fail_rx: dma_release_channel(dma->chan_rx); @@ -336,8 +336,6 @@ fail_tx: dma_release_channel(dma->chan_tx); fail_al: devm_kfree(dev, dma); - /* return successfully if there is no dma support */ - return ret == -ENODEV ? 0 : ret; } static void i2c_imx_dma_callback(void *arg) @@ -1165,17 +1163,13 @@ static int i2c_imx_probe(struct platform_device *pdev) dev_dbg(&i2c_imx->adapter.dev, "device resources: %pR\n", res); dev_dbg(&i2c_imx->adapter.dev, "adapter name: \"%s\"\n", i2c_imx->adapter.name); + dev_info(&i2c_imx->adapter.dev, "IMX I2C adapter registered\n"); /* Init DMA config if supported */ - ret = i2c_imx_dma_request(i2c_imx, phy_addr); - if (ret < 0) - goto del_adapter; + i2c_imx_dma_request(i2c_imx, phy_addr); - dev_info(&i2c_imx->adapter.dev, "IMX I2C adapter registered\n"); return 0; /* Return OK */ -del_adapter: - i2c_del_adapter(&i2c_imx->adapter); clk_notifier_unregister: clk_notifier_unregister(i2c_imx->clk, &i2c_imx->clk_change_nb); rpm_disable: diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index d39a4606f72d..531c01100b56 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -139,6 +139,7 @@ struct rcar_i2c_priv { enum dma_data_direction dma_direction; struct reset_control *rstc; + int irq; }; #define rcar_i2c_priv_to_dev(p) ((p)->adap.dev.parent) @@ -861,9 +862,11 @@ static int rcar_unreg_slave(struct i2c_client *slave) WARN_ON(!priv->slave); + /* disable irqs and ensure none is running before clearing ptr */ rcar_i2c_write(priv, ICSIER, 0); rcar_i2c_write(priv, ICSCR, 0); + synchronize_irq(priv->irq); priv->slave = NULL; pm_runtime_put(rcar_i2c_priv_to_dev(priv)); @@ -918,7 +921,7 @@ static int rcar_i2c_probe(struct platform_device *pdev) struct i2c_adapter *adap; struct device *dev = &pdev->dev; struct i2c_timings i2c_t; - int irq, ret; + int ret; /* Otherwise logic will break because some bytes must always use PIO */ BUILD_BUG_ON_MSG(RCAR_MIN_DMA_LEN < 3, "Invalid min DMA length"); @@ -984,10 +987,10 @@ static int rcar_i2c_probe(struct platform_device *pdev) pm_runtime_put(dev); - irq = platform_get_irq(pdev, 0); - ret = devm_request_irq(dev, irq, rcar_i2c_irq, 0, dev_name(dev), priv); + priv->irq = platform_get_irq(pdev, 0); + ret = devm_request_irq(dev, priv->irq, rcar_i2c_irq, 0, dev_name(dev), priv); if (ret < 0) { - dev_err(dev, "cannot get irq %d\n", irq); + dev_err(dev, "cannot get irq %d\n", priv->irq); goto out_pm_disable; } diff --git a/drivers/i2c/busses/i2c-stm32.h b/drivers/i2c/busses/i2c-stm32.h index 868755f82f88..2c21893905a3 100644 --- a/drivers/i2c/busses/i2c-stm32.h +++ b/drivers/i2c/busses/i2c-stm32.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * i2c-stm32.h * diff --git a/drivers/iio/adc/max9611.c b/drivers/iio/adc/max9611.c index 0e3c6529fc4c..da073d72f649 100644 --- a/drivers/iio/adc/max9611.c +++ b/drivers/iio/adc/max9611.c @@ -480,7 +480,7 @@ static int max9611_init(struct max9611_dev *max9611) if (ret) return ret; - regval = ret & MAX9611_TEMP_MASK; + regval &= MAX9611_TEMP_MASK; if ((regval > MAX9611_TEMP_MAX_POS && regval < MAX9611_TEMP_MIN_NEG) || diff --git a/drivers/iio/frequency/adf4371.c b/drivers/iio/frequency/adf4371.c index e48f15cc9ab5..ff82863cbf42 100644 --- a/drivers/iio/frequency/adf4371.c +++ b/drivers/iio/frequency/adf4371.c @@ -276,11 +276,11 @@ static int adf4371_set_freq(struct adf4371_state *st, unsigned long long freq, st->buf[0] = st->integer >> 8; st->buf[1] = 0x40; /* REG12 default */ st->buf[2] = 0x00; - st->buf[3] = st->fract2 & 0xFF; - st->buf[4] = st->fract2 >> 7; - st->buf[5] = st->fract2 >> 15; + st->buf[3] = st->fract1 & 0xFF; + st->buf[4] = st->fract1 >> 8; + st->buf[5] = st->fract1 >> 16; st->buf[6] = ADF4371_FRAC2WORD_L(st->fract2 & 0x7F) | - ADF4371_FRAC1WORD(st->fract1 >> 23); + ADF4371_FRAC1WORD(st->fract1 >> 24); st->buf[7] = ADF4371_FRAC2WORD_H(st->fract2 >> 7); st->buf[8] = st->mod2 & 0xFF; st->buf[9] = ADF4371_MOD2WORD(st->mod2 >> 8); diff --git a/drivers/infiniband/core/counters.c b/drivers/infiniband/core/counters.c index 45d5164e9574..b79890739a2c 100644 --- a/drivers/infiniband/core/counters.c +++ b/drivers/infiniband/core/counters.c @@ -38,6 +38,9 @@ int rdma_counter_set_auto_mode(struct ib_device *dev, u8 port, int ret; port_counter = &dev->port_data[port].port_counter; + if (!port_counter->hstats) + return -EOPNOTSUPP; + mutex_lock(&port_counter->lock); if (on) { ret = __counter_set_mode(&port_counter->mode, @@ -509,6 +512,9 @@ int rdma_counter_bind_qpn_alloc(struct ib_device *dev, u8 port, if (!rdma_is_port_valid(dev, port)) return -EINVAL; + if (!dev->port_data[port].port_counter.hstats) + return -EOPNOTSUPP; + qp = rdma_counter_get_qp(dev, qp_num); if (!qp) return -ENOENT; diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 783e465e7c41..87d40d1ecdde 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -1952,12 +1952,16 @@ static int stat_get_doit_qp(struct sk_buff *skb, struct nlmsghdr *nlh, if (fill_nldev_handle(msg, device) || nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, port) || - nla_put_u32(msg, RDMA_NLDEV_ATTR_STAT_MODE, mode)) + nla_put_u32(msg, RDMA_NLDEV_ATTR_STAT_MODE, mode)) { + ret = -EMSGSIZE; goto err_msg; + } if ((mode == RDMA_COUNTER_MODE_AUTO) && - nla_put_u32(msg, RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK, mask)) + nla_put_u32(msg, RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK, mask)) { + ret = -EMSGSIZE; goto err_msg; + } nlmsg_end(msg, nlh); ib_device_put(device); diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c index 2a75c6f8d827..c0e15db34680 100644 --- a/drivers/infiniband/core/umem_odp.c +++ b/drivers/infiniband/core/umem_odp.c @@ -112,10 +112,6 @@ static int ib_umem_notifier_release_trampoline(struct ib_umem_odp *umem_odp, * prevent any further fault handling on this MR. */ ib_umem_notifier_start_account(umem_odp); - umem_odp->dying = 1; - /* Make sure that the fact the umem is dying is out before we release - * all pending page faults. */ - smp_wmb(); complete_all(&umem_odp->notifier_completion); umem_odp->umem.context->invalidate_range( umem_odp, ib_umem_start(umem_odp), ib_umem_end(umem_odp)); diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c index ec4370f99381..af5bbb35c058 100644 --- a/drivers/infiniband/hw/mlx5/devx.c +++ b/drivers/infiniband/hw/mlx5/devx.c @@ -2026,7 +2026,7 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_SUBSCRIBE_EVENT)( event_sub->eventfd = eventfd_ctx_fdget(redirect_fd); - if (IS_ERR(event_sub)) { + if (IS_ERR(event_sub->eventfd)) { err = PTR_ERR(event_sub->eventfd); event_sub->eventfd = NULL; goto err; @@ -2644,12 +2644,13 @@ static int devx_async_event_close(struct inode *inode, struct file *filp) struct devx_async_event_file *ev_file = filp->private_data; struct devx_event_subscription *event_sub, *event_sub_tmp; struct devx_async_event_data *entry, *tmp; + struct mlx5_ib_dev *dev = ev_file->dev; - mutex_lock(&ev_file->dev->devx_event_table.event_xa_lock); + mutex_lock(&dev->devx_event_table.event_xa_lock); /* delete the subscriptions which are related to this FD */ list_for_each_entry_safe(event_sub, event_sub_tmp, &ev_file->subscribed_events_list, file_list) { - devx_cleanup_subscription(ev_file->dev, event_sub); + devx_cleanup_subscription(dev, event_sub); if (event_sub->eventfd) eventfd_ctx_put(event_sub->eventfd); @@ -2658,7 +2659,7 @@ static int devx_async_event_close(struct inode *inode, struct file *filp) kfree_rcu(event_sub, rcu); } - mutex_unlock(&ev_file->dev->devx_event_table.event_xa_lock); + mutex_unlock(&dev->devx_event_table.event_xa_lock); /* free the pending events allocation */ if (!ev_file->omit_data) { @@ -2670,7 +2671,7 @@ static int devx_async_event_close(struct inode *inode, struct file *filp) } uverbs_close_fd(filp); - put_device(&ev_file->dev->ib_dev.dev); + put_device(&dev->ib_dev.dev); return 0; } diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c index 81da82050d05..1d257d1b3b0d 100644 --- a/drivers/infiniband/hw/mlx5/odp.c +++ b/drivers/infiniband/hw/mlx5/odp.c @@ -579,7 +579,6 @@ static int pagefault_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr, u32 flags) { int npages = 0, current_seq, page_shift, ret, np; - bool implicit = false; struct ib_umem_odp *odp_mr = to_ib_umem_odp(mr->umem); bool downgrade = flags & MLX5_PF_FLAGS_DOWNGRADE; bool prefetch = flags & MLX5_PF_FLAGS_PREFETCH; @@ -594,7 +593,6 @@ static int pagefault_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr, if (IS_ERR(odp)) return PTR_ERR(odp); mr = odp->private; - implicit = true; } else { odp = odp_mr; } @@ -682,19 +680,15 @@ next_mr: out: if (ret == -EAGAIN) { - if (implicit || !odp->dying) { - unsigned long timeout = - msecs_to_jiffies(MMU_NOTIFIER_TIMEOUT); - - if (!wait_for_completion_timeout( - &odp->notifier_completion, - timeout)) { - mlx5_ib_warn(dev, "timeout waiting for mmu notifier. seq %d against %d. notifiers_count=%d\n", - current_seq, odp->notifiers_seq, odp->notifiers_count); - } - } else { - /* The MR is being killed, kill the QP as well. */ - ret = -EFAULT; + unsigned long timeout = msecs_to_jiffies(MMU_NOTIFIER_TIMEOUT); + + if (!wait_for_completion_timeout(&odp->notifier_completion, + timeout)) { + mlx5_ib_warn( + dev, + "timeout waiting for mmu notifier. seq %d against %d. notifiers_count=%d\n", + current_seq, odp->notifiers_seq, + odp->notifiers_count); } } diff --git a/drivers/infiniband/sw/siw/Kconfig b/drivers/infiniband/sw/siw/Kconfig index dace276aea14..b622fc62f2cd 100644 --- a/drivers/infiniband/sw/siw/Kconfig +++ b/drivers/infiniband/sw/siw/Kconfig @@ -1,6 +1,6 @@ config RDMA_SIW tristate "Software RDMA over TCP/IP (iWARP) driver" - depends on INET && INFINIBAND && LIBCRC32C && 64BIT + depends on INET && INFINIBAND && LIBCRC32C select DMA_VIRT_OPS help This driver implements the iWARP RDMA transport over diff --git a/drivers/infiniband/sw/siw/siw.h b/drivers/infiniband/sw/siw/siw.h index 03fd7b2f595f..77b1aabf6ff3 100644 --- a/drivers/infiniband/sw/siw/siw.h +++ b/drivers/infiniband/sw/siw/siw.h @@ -214,7 +214,7 @@ struct siw_wqe { struct siw_cq { struct ib_cq base_cq; spinlock_t lock; - u64 *notify; + struct siw_cq_ctrl *notify; struct siw_cqe *queue; u32 cq_put; u32 cq_get; diff --git a/drivers/infiniband/sw/siw/siw_main.c b/drivers/infiniband/sw/siw/siw_main.c index d0f140daf659..05a92f997f60 100644 --- a/drivers/infiniband/sw/siw/siw_main.c +++ b/drivers/infiniband/sw/siw/siw_main.c @@ -160,10 +160,8 @@ static int siw_init_cpulist(void) out_err: siw_cpu_info.num_nodes = 0; - while (i) { + while (--i >= 0) kfree(siw_cpu_info.tx_valid_cpus[i]); - siw_cpu_info.tx_valid_cpus[i--] = NULL; - } kfree(siw_cpu_info.tx_valid_cpus); siw_cpu_info.tx_valid_cpus = NULL; diff --git a/drivers/infiniband/sw/siw/siw_qp.c b/drivers/infiniband/sw/siw/siw_qp.c index e27bd5b35b96..0990307c5d2c 100644 --- a/drivers/infiniband/sw/siw/siw_qp.c +++ b/drivers/infiniband/sw/siw/siw_qp.c @@ -1013,18 +1013,24 @@ out: */ static bool siw_cq_notify_now(struct siw_cq *cq, u32 flags) { - u64 cq_notify; + u32 cq_notify; if (!cq->base_cq.comp_handler) return false; - cq_notify = READ_ONCE(*cq->notify); + /* Read application shared notification state */ + cq_notify = READ_ONCE(cq->notify->flags); if ((cq_notify & SIW_NOTIFY_NEXT_COMPLETION) || ((cq_notify & SIW_NOTIFY_SOLICITED) && (flags & SIW_WQE_SOLICITED))) { - /* dis-arm CQ */ - smp_store_mb(*cq->notify, SIW_NOTIFY_NOT); + /* + * CQ notification is one-shot: Since the + * current CQE causes user notification, + * the CQ gets dis-aremd and must be re-aremd + * by the user for a new notification. + */ + WRITE_ONCE(cq->notify->flags, SIW_NOTIFY_NOT); return true; } diff --git a/drivers/infiniband/sw/siw/siw_verbs.c b/drivers/infiniband/sw/siw/siw_verbs.c index 32dc79d0e898..e7f3a2379d9d 100644 --- a/drivers/infiniband/sw/siw/siw_verbs.c +++ b/drivers/infiniband/sw/siw/siw_verbs.c @@ -1049,7 +1049,7 @@ int siw_create_cq(struct ib_cq *base_cq, const struct ib_cq_init_attr *attr, spin_lock_init(&cq->lock); - cq->notify = &((struct siw_cq_ctrl *)&cq->queue[size])->notify; + cq->notify = (struct siw_cq_ctrl *)&cq->queue[size]; if (udata) { struct siw_uresp_create_cq uresp = {}; @@ -1141,11 +1141,17 @@ int siw_req_notify_cq(struct ib_cq *base_cq, enum ib_cq_notify_flags flags) siw_dbg_cq(cq, "flags: 0x%02x\n", flags); if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED) - /* CQ event for next solicited completion */ - smp_store_mb(*cq->notify, SIW_NOTIFY_SOLICITED); + /* + * Enable CQ event for next solicited completion. + * and make it visible to all associated producers. + */ + smp_store_mb(cq->notify->flags, SIW_NOTIFY_SOLICITED); else - /* CQ event for any signalled completion */ - smp_store_mb(*cq->notify, SIW_NOTIFY_ALL); + /* + * Enable CQ event for any signalled completion. + * and make it visible to all associated producers. + */ + smp_store_mb(cq->notify->flags, SIW_NOTIFY_ALL); if (flags & IB_CQ_REPORT_MISSED_EVENTS) return cq->cq_put - cq->cq_get; diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index a9a9fabd3968..c5c93e48b4db 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -1186,8 +1186,8 @@ static void arm_smmu_write_strtab_ent(struct arm_smmu_master *master, u32 sid, ste_live = true; break; case STRTAB_STE_0_CFG_ABORT: - if (disable_bypass) - break; + BUG_ON(!disable_bypass); + break; default: BUG(); /* STE corruption */ } diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index a7f9c3edbcb2..d991d40f797f 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -459,13 +459,11 @@ static dma_addr_t __iommu_dma_map(struct device *dev, phys_addr_t phys, { struct iommu_domain *domain = iommu_get_dma_domain(dev); struct iommu_dma_cookie *cookie = domain->iova_cookie; - size_t iova_off = 0; + struct iova_domain *iovad = &cookie->iovad; + size_t iova_off = iova_offset(iovad, phys); dma_addr_t iova; - if (cookie->type == IOMMU_DMA_IOVA_COOKIE) { - iova_off = iova_offset(&cookie->iovad, phys); - size = iova_align(&cookie->iovad, size + iova_off); - } + size = iova_align(iovad, size + iova_off); iova = iommu_dma_alloc_iova(domain, size, dma_get_mask(dev), dev); if (!iova) @@ -574,7 +572,7 @@ static void *iommu_dma_alloc_remap(struct device *dev, size_t size, struct iova_domain *iovad = &cookie->iovad; bool coherent = dev_is_dma_coherent(dev); int ioprot = dma_info_to_prot(DMA_BIDIRECTIONAL, coherent, attrs); - pgprot_t prot = arch_dma_mmap_pgprot(dev, PAGE_KERNEL, attrs); + pgprot_t prot = dma_pgprot(dev, PAGE_KERNEL, attrs); unsigned int count, min_size, alloc_sizes = domain->pgsize_bitmap; struct page **pages; struct sg_table sgt; @@ -764,7 +762,7 @@ static int __finalise_sg(struct device *dev, struct scatterlist *sg, int nents, * - and wouldn't make the resulting output segment too long */ if (cur_len && !s_iova_off && (dma_addr & seg_mask) && - (cur_len + s_length <= max_len)) { + (max_len - cur_len >= s_length)) { /* ...then concatenate it with the previous one */ cur_len += s_length; } else { @@ -975,7 +973,7 @@ static void *iommu_dma_alloc_pages(struct device *dev, size_t size, return NULL; if (IS_ENABLED(CONFIG_DMA_REMAP) && (!coherent || PageHighMem(page))) { - pgprot_t prot = arch_dma_mmap_pgprot(dev, PAGE_KERNEL, attrs); + pgprot_t prot = dma_pgprot(dev, PAGE_KERNEL, attrs); cpu_addr = dma_common_contiguous_remap(page, alloc_size, VM_USERMAP, prot, __builtin_return_address(0)); @@ -1035,7 +1033,7 @@ static int iommu_dma_mmap(struct device *dev, struct vm_area_struct *vma, unsigned long pfn, off = vma->vm_pgoff; int ret; - vma->vm_page_prot = arch_dma_mmap_pgprot(dev, vma->vm_page_prot, attrs); + vma->vm_page_prot = dma_pgprot(dev, vma->vm_page_prot, attrs); if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret)) return ret; @@ -1147,16 +1145,21 @@ static struct iommu_dma_msi_page *iommu_dma_get_msi_page(struct device *dev, if (!msi_page) return NULL; - iova = __iommu_dma_map(dev, msi_addr, size, prot); - if (iova == DMA_MAPPING_ERROR) + iova = iommu_dma_alloc_iova(domain, size, dma_get_mask(dev), dev); + if (!iova) goto out_free_page; + if (iommu_map(domain, iova, msi_addr, size, prot)) + goto out_free_iova; + INIT_LIST_HEAD(&msi_page->list); msi_page->phys = msi_addr; msi_page->iova = iova; list_add(&msi_page->list, &cookie->msi_page_list); return msi_page; +out_free_iova: + iommu_dma_free_iova(cookie, iova, size); out_free_page: kfree(msi_page); return NULL; diff --git a/drivers/iommu/intel-iommu-debugfs.c b/drivers/iommu/intel-iommu-debugfs.c index 2b25d9c59336..471f05d452e0 100644 --- a/drivers/iommu/intel-iommu-debugfs.c +++ b/drivers/iommu/intel-iommu-debugfs.c @@ -235,7 +235,7 @@ static void ctx_tbl_walk(struct seq_file *m, struct intel_iommu *iommu, u16 bus) tbl_wlk.ctx_entry = context; m->private = &tbl_wlk; - if (pasid_supported(iommu) && is_pasid_enabled(context)) { + if (dmar_readq(iommu->reg + DMAR_RTADDR_REG) & DMA_RTADDR_SMT) { pasid_dir_ptr = context->lo & VTD_PAGE_MASK; pasid_dir_size = get_pasid_dir_size(context); pasid_dir_walk(m, pasid_dir_ptr, pasid_dir_size); diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index bdaed2da8a55..12d094d08c0a 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -3449,6 +3449,7 @@ static bool iommu_need_mapping(struct device *dev) dmar_domain = to_dmar_domain(domain); dmar_domain->flags |= DOMAIN_FLAG_LOSE_CHILDREN; } + dmar_remove_one_dev_info(dev); get_private_domain_for_dev(dev); } @@ -4790,7 +4791,8 @@ static void __dmar_remove_one_dev_info(struct device_domain_info *info) /* free the private domain */ if (domain->flags & DOMAIN_FLAG_LOSE_CHILDREN && - !(domain->flags & DOMAIN_FLAG_STATIC_IDENTITY)) + !(domain->flags & DOMAIN_FLAG_STATIC_IDENTITY) && + list_empty(&domain->devices)) domain_exit(info->domain); free_devinfo_mem(info); @@ -4803,7 +4805,8 @@ static void dmar_remove_one_dev_info(struct device *dev) spin_lock_irqsave(&device_domain_lock, flags); info = dev->archdata.iommu; - __dmar_remove_one_dev_info(info); + if (info) + __dmar_remove_one_dev_info(info); spin_unlock_irqrestore(&device_domain_lock, flags); } @@ -5281,6 +5284,7 @@ static int intel_iommu_add_device(struct device *dev) if (device_def_domain_type(dev) == IOMMU_DOMAIN_IDENTITY) { ret = iommu_request_dm_for_dev(dev); if (ret) { + dmar_remove_one_dev_info(dev); dmar_domain->flags |= DOMAIN_FLAG_LOSE_CHILDREN; domain_add_dev_info(si_domain, dev); dev_info(dev, @@ -5291,6 +5295,7 @@ static int intel_iommu_add_device(struct device *dev) if (device_def_domain_type(dev) == IOMMU_DOMAIN_DMA) { ret = iommu_request_dma_domain_for_dev(dev); if (ret) { + dmar_remove_one_dev_info(dev); dmar_domain->flags |= DOMAIN_FLAG_LOSE_CHILDREN; if (!get_private_domain_for_dev(dev)) { dev_warn(dev, @@ -5316,6 +5321,8 @@ static void intel_iommu_remove_device(struct device *dev) if (!iommu) return; + dmar_remove_one_dev_info(dev); + iommu_group_remove_device(dev); iommu_device_unlink(&iommu->iommu, dev); diff --git a/drivers/media/platform/omap/omap_vout_vrfb.c b/drivers/media/platform/omap/omap_vout_vrfb.c index 29e3f5da59c1..11ec048929e8 100644 --- a/drivers/media/platform/omap/omap_vout_vrfb.c +++ b/drivers/media/platform/omap/omap_vout_vrfb.c @@ -253,8 +253,7 @@ int omap_vout_prepare_vrfb(struct omap_vout_device *vout, */ pixsize = vout->bpp * vout->vrfb_bpp; - dst_icg = ((MAX_PIXELS_PER_LINE * pixsize) - - (vout->pix.width * vout->bpp)) + 1; + dst_icg = MAX_PIXELS_PER_LINE * pixsize - vout->pix.width * vout->bpp; xt->src_start = vout->buf_phy_addr[vb->i]; xt->dst_start = vout->vrfb_context[vb->i].paddr[0]; diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 6abfc8e92fcc..16900357afc2 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -465,6 +465,7 @@ config PCI_ENDPOINT_TEST config XILINX_SDFEC tristate "Xilinx SDFEC 16" + depends on HAS_IOMEM help This option enables support for the Xilinx SDFEC (Soft Decision Forward Error Correction) driver. This enables a char driver diff --git a/drivers/misc/habanalabs/device.c b/drivers/misc/habanalabs/device.c index 0c4894dd9c02..7a8f9d0b71b5 100644 --- a/drivers/misc/habanalabs/device.c +++ b/drivers/misc/habanalabs/device.c @@ -970,7 +970,8 @@ int hl_device_init(struct hl_device *hdev, struct class *hclass) rc = hl_ctx_init(hdev, hdev->kernel_ctx, true); if (rc) { dev_err(hdev->dev, "failed to initialize kernel context\n"); - goto free_ctx; + kfree(hdev->kernel_ctx); + goto mmu_fini; } rc = hl_cb_pool_init(hdev); @@ -1053,8 +1054,6 @@ release_ctx: if (hl_ctx_put(hdev->kernel_ctx) != 1) dev_err(hdev->dev, "kernel ctx is still alive on initialization failure\n"); -free_ctx: - kfree(hdev->kernel_ctx); mmu_fini: hl_mmu_fini(hdev); eq_fini: diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index a0e181714891..271c5c8f53b4 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -2729,9 +2729,10 @@ void goya_ring_doorbell(struct hl_device *hdev, u32 hw_queue_id, u32 pi) GOYA_ASYNC_EVENT_ID_PI_UPDATE); } -void goya_flush_pq_write(struct hl_device *hdev, u64 *pq, u64 exp_val) +void goya_pqe_write(struct hl_device *hdev, __le64 *pqe, struct hl_bd *bd) { - /* Not needed in Goya */ + /* The QMANs are on the SRAM so need to copy to IO space */ + memcpy_toio((void __iomem *) pqe, bd, sizeof(struct hl_bd)); } static void *goya_dma_alloc_coherent(struct hl_device *hdev, size_t size, @@ -3313,9 +3314,11 @@ static int goya_validate_dma_pkt_no_mmu(struct hl_device *hdev, int rc; dev_dbg(hdev->dev, "DMA packet details:\n"); - dev_dbg(hdev->dev, "source == 0x%llx\n", user_dma_pkt->src_addr); - dev_dbg(hdev->dev, "destination == 0x%llx\n", user_dma_pkt->dst_addr); - dev_dbg(hdev->dev, "size == %u\n", user_dma_pkt->tsize); + dev_dbg(hdev->dev, "source == 0x%llx\n", + le64_to_cpu(user_dma_pkt->src_addr)); + dev_dbg(hdev->dev, "destination == 0x%llx\n", + le64_to_cpu(user_dma_pkt->dst_addr)); + dev_dbg(hdev->dev, "size == %u\n", le32_to_cpu(user_dma_pkt->tsize)); ctl = le32_to_cpu(user_dma_pkt->ctl); user_dir = (ctl & GOYA_PKT_LIN_DMA_CTL_DMA_DIR_MASK) >> @@ -3344,9 +3347,11 @@ static int goya_validate_dma_pkt_mmu(struct hl_device *hdev, struct packet_lin_dma *user_dma_pkt) { dev_dbg(hdev->dev, "DMA packet details:\n"); - dev_dbg(hdev->dev, "source == 0x%llx\n", user_dma_pkt->src_addr); - dev_dbg(hdev->dev, "destination == 0x%llx\n", user_dma_pkt->dst_addr); - dev_dbg(hdev->dev, "size == %u\n", user_dma_pkt->tsize); + dev_dbg(hdev->dev, "source == 0x%llx\n", + le64_to_cpu(user_dma_pkt->src_addr)); + dev_dbg(hdev->dev, "destination == 0x%llx\n", + le64_to_cpu(user_dma_pkt->dst_addr)); + dev_dbg(hdev->dev, "size == %u\n", le32_to_cpu(user_dma_pkt->tsize)); /* * WA for HW-23. @@ -3386,7 +3391,8 @@ static int goya_validate_wreg32(struct hl_device *hdev, dev_dbg(hdev->dev, "WREG32 packet details:\n"); dev_dbg(hdev->dev, "reg_offset == 0x%x\n", reg_offset); - dev_dbg(hdev->dev, "value == 0x%x\n", wreg_pkt->value); + dev_dbg(hdev->dev, "value == 0x%x\n", + le32_to_cpu(wreg_pkt->value)); if (reg_offset != (mmDMA_CH_0_WR_COMP_ADDR_LO & 0x1FFF)) { dev_err(hdev->dev, "WREG32 packet with illegal address 0x%x\n", @@ -3428,12 +3434,13 @@ static int goya_validate_cb(struct hl_device *hdev, while (cb_parsed_length < parser->user_cb_size) { enum packet_id pkt_id; u16 pkt_size; - void *user_pkt; + struct goya_packet *user_pkt; - user_pkt = (void *) (uintptr_t) + user_pkt = (struct goya_packet *) (uintptr_t) (parser->user_cb->kernel_address + cb_parsed_length); - pkt_id = (enum packet_id) (((*(u64 *) user_pkt) & + pkt_id = (enum packet_id) ( + (le64_to_cpu(user_pkt->header) & PACKET_HEADER_PACKET_ID_MASK) >> PACKET_HEADER_PACKET_ID_SHIFT); @@ -3453,7 +3460,8 @@ static int goya_validate_cb(struct hl_device *hdev, * need to validate here as well because patch_cb() is * not called in MMU path while this function is called */ - rc = goya_validate_wreg32(hdev, parser, user_pkt); + rc = goya_validate_wreg32(hdev, + parser, (struct packet_wreg32 *) user_pkt); break; case PACKET_WREG_BULK: @@ -3481,10 +3489,10 @@ static int goya_validate_cb(struct hl_device *hdev, case PACKET_LIN_DMA: if (is_mmu) rc = goya_validate_dma_pkt_mmu(hdev, parser, - user_pkt); + (struct packet_lin_dma *) user_pkt); else rc = goya_validate_dma_pkt_no_mmu(hdev, parser, - user_pkt); + (struct packet_lin_dma *) user_pkt); break; case PACKET_MSG_LONG: @@ -3657,15 +3665,16 @@ static int goya_patch_cb(struct hl_device *hdev, enum packet_id pkt_id; u16 pkt_size; u32 new_pkt_size = 0; - void *user_pkt, *kernel_pkt; + struct goya_packet *user_pkt, *kernel_pkt; - user_pkt = (void *) (uintptr_t) + user_pkt = (struct goya_packet *) (uintptr_t) (parser->user_cb->kernel_address + cb_parsed_length); - kernel_pkt = (void *) (uintptr_t) + kernel_pkt = (struct goya_packet *) (uintptr_t) (parser->patched_cb->kernel_address + cb_patched_cur_length); - pkt_id = (enum packet_id) (((*(u64 *) user_pkt) & + pkt_id = (enum packet_id) ( + (le64_to_cpu(user_pkt->header) & PACKET_HEADER_PACKET_ID_MASK) >> PACKET_HEADER_PACKET_ID_SHIFT); @@ -3680,15 +3689,18 @@ static int goya_patch_cb(struct hl_device *hdev, switch (pkt_id) { case PACKET_LIN_DMA: - rc = goya_patch_dma_packet(hdev, parser, user_pkt, - kernel_pkt, &new_pkt_size); + rc = goya_patch_dma_packet(hdev, parser, + (struct packet_lin_dma *) user_pkt, + (struct packet_lin_dma *) kernel_pkt, + &new_pkt_size); cb_patched_cur_length += new_pkt_size; break; case PACKET_WREG_32: memcpy(kernel_pkt, user_pkt, pkt_size); cb_patched_cur_length += pkt_size; - rc = goya_validate_wreg32(hdev, parser, kernel_pkt); + rc = goya_validate_wreg32(hdev, parser, + (struct packet_wreg32 *) kernel_pkt); break; case PACKET_WREG_BULK: @@ -4352,6 +4364,8 @@ static int goya_unmask_irq_arr(struct hl_device *hdev, u32 *irq_arr, size_t total_pkt_size; long result; int rc; + int irq_num_entries, irq_arr_index; + __le32 *goya_irq_arr; total_pkt_size = sizeof(struct armcp_unmask_irq_arr_packet) + irq_arr_size; @@ -4369,8 +4383,16 @@ static int goya_unmask_irq_arr(struct hl_device *hdev, u32 *irq_arr, if (!pkt) return -ENOMEM; - pkt->length = cpu_to_le32(irq_arr_size / sizeof(irq_arr[0])); - memcpy(&pkt->irqs, irq_arr, irq_arr_size); + irq_num_entries = irq_arr_size / sizeof(irq_arr[0]); + pkt->length = cpu_to_le32(irq_num_entries); + + /* We must perform any necessary endianness conversation on the irq + * array being passed to the goya hardware + */ + for (irq_arr_index = 0, goya_irq_arr = (__le32 *) &pkt->irqs; + irq_arr_index < irq_num_entries ; irq_arr_index++) + goya_irq_arr[irq_arr_index] = + cpu_to_le32(irq_arr[irq_arr_index]); pkt->armcp_pkt.ctl = cpu_to_le32(ARMCP_PACKET_UNMASK_RAZWI_IRQ_ARRAY << ARMCP_PKT_CTL_OPCODE_SHIFT); @@ -5042,7 +5064,7 @@ static const struct hl_asic_funcs goya_funcs = { .resume = goya_resume, .cb_mmap = goya_cb_mmap, .ring_doorbell = goya_ring_doorbell, - .flush_pq_write = goya_flush_pq_write, + .pqe_write = goya_pqe_write, .asic_dma_alloc_coherent = goya_dma_alloc_coherent, .asic_dma_free_coherent = goya_dma_free_coherent, .get_int_queue_base = goya_get_int_queue_base, diff --git a/drivers/misc/habanalabs/goya/goyaP.h b/drivers/misc/habanalabs/goya/goyaP.h index f8c611883dc1..d7f48c9c41cd 100644 --- a/drivers/misc/habanalabs/goya/goyaP.h +++ b/drivers/misc/habanalabs/goya/goyaP.h @@ -177,7 +177,7 @@ int goya_late_init(struct hl_device *hdev); void goya_late_fini(struct hl_device *hdev); void goya_ring_doorbell(struct hl_device *hdev, u32 hw_queue_id, u32 pi); -void goya_flush_pq_write(struct hl_device *hdev, u64 *pq, u64 exp_val); +void goya_pqe_write(struct hl_device *hdev, __le64 *pqe, struct hl_bd *bd); void goya_update_eq_ci(struct hl_device *hdev, u32 val); void goya_restore_phase_topology(struct hl_device *hdev); int goya_context_switch(struct hl_device *hdev, u32 asid); diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h index 6a4c64b97f38..ce83adafcf2d 100644 --- a/drivers/misc/habanalabs/habanalabs.h +++ b/drivers/misc/habanalabs/habanalabs.h @@ -441,7 +441,11 @@ enum hl_pll_frequency { * @resume: handles IP specific H/W or SW changes for resume. * @cb_mmap: maps a CB. * @ring_doorbell: increment PI on a given QMAN. - * @flush_pq_write: flush PQ entry write if necessary, WARN if flushing failed. + * @pqe_write: Write the PQ entry to the PQ. This is ASIC-specific + * function because the PQs are located in different memory areas + * per ASIC (SRAM, DRAM, Host memory) and therefore, the method of + * writing the PQE must match the destination memory area + * properties. * @asic_dma_alloc_coherent: Allocate coherent DMA memory by calling * dma_alloc_coherent(). This is ASIC function because * its implementation is not trivial when the driver @@ -510,7 +514,8 @@ struct hl_asic_funcs { int (*cb_mmap)(struct hl_device *hdev, struct vm_area_struct *vma, u64 kaddress, phys_addr_t paddress, u32 size); void (*ring_doorbell)(struct hl_device *hdev, u32 hw_queue_id, u32 pi); - void (*flush_pq_write)(struct hl_device *hdev, u64 *pq, u64 exp_val); + void (*pqe_write)(struct hl_device *hdev, __le64 *pqe, + struct hl_bd *bd); void* (*asic_dma_alloc_coherent)(struct hl_device *hdev, size_t size, dma_addr_t *dma_handle, gfp_t flag); void (*asic_dma_free_coherent)(struct hl_device *hdev, size_t size, diff --git a/drivers/misc/habanalabs/hw_queue.c b/drivers/misc/habanalabs/hw_queue.c index e3b5517897ea..5f5673b74985 100644 --- a/drivers/misc/habanalabs/hw_queue.c +++ b/drivers/misc/habanalabs/hw_queue.c @@ -290,23 +290,19 @@ static void int_hw_queue_schedule_job(struct hl_cs_job *job) struct hl_device *hdev = job->cs->ctx->hdev; struct hl_hw_queue *q = &hdev->kernel_queues[job->hw_queue_id]; struct hl_bd bd; - u64 *pi, *pbd = (u64 *) &bd; + __le64 *pi; bd.ctl = 0; - bd.len = __cpu_to_le32(job->job_cb_size); - bd.ptr = __cpu_to_le64((u64) (uintptr_t) job->user_cb); + bd.len = cpu_to_le32(job->job_cb_size); + bd.ptr = cpu_to_le64((u64) (uintptr_t) job->user_cb); - pi = (u64 *) (uintptr_t) (q->kernel_address + + pi = (__le64 *) (uintptr_t) (q->kernel_address + ((q->pi & (q->int_queue_len - 1)) * sizeof(bd))); - pi[0] = pbd[0]; - pi[1] = pbd[1]; - q->pi++; q->pi &= ((q->int_queue_len << 1) - 1); - /* Flush PQ entry write. Relevant only for specific ASICs */ - hdev->asic_funcs->flush_pq_write(hdev, pi, pbd[0]); + hdev->asic_funcs->pqe_write(hdev, pi, &bd); hdev->asic_funcs->ring_doorbell(hdev, q->hw_queue_id, q->pi); } diff --git a/drivers/misc/habanalabs/include/goya/goya_packets.h b/drivers/misc/habanalabs/include/goya/goya_packets.h index a14407b975e4..ef54bad20509 100644 --- a/drivers/misc/habanalabs/include/goya/goya_packets.h +++ b/drivers/misc/habanalabs/include/goya/goya_packets.h @@ -52,6 +52,19 @@ enum goya_dma_direction { #define GOYA_PKT_CTL_MB_SHIFT 31 #define GOYA_PKT_CTL_MB_MASK 0x80000000 +/* All packets have, at least, an 8-byte header, which contains + * the packet type. The kernel driver uses the packet header for packet + * validation and to perform any necessary required preparation before + * sending them off to the hardware. + */ +struct goya_packet { + __le64 header; + /* The rest of the packet data follows. Use the corresponding + * packet_XXX struct to deference the data, based on packet type + */ + u8 contents[0]; +}; + struct packet_nop { __le32 reserved; __le32 ctl; diff --git a/drivers/misc/habanalabs/irq.c b/drivers/misc/habanalabs/irq.c index ea9f72ff456c..199791b57caf 100644 --- a/drivers/misc/habanalabs/irq.c +++ b/drivers/misc/habanalabs/irq.c @@ -80,8 +80,7 @@ irqreturn_t hl_irq_handler_cq(int irq, void *arg) struct hl_cs_job *job; bool shadow_index_valid; u16 shadow_index; - u32 *cq_entry; - u32 *cq_base; + struct hl_cq_entry *cq_entry, *cq_base; if (hdev->disabled) { dev_dbg(hdev->dev, @@ -90,29 +89,29 @@ irqreturn_t hl_irq_handler_cq(int irq, void *arg) return IRQ_HANDLED; } - cq_base = (u32 *) (uintptr_t) cq->kernel_address; + cq_base = (struct hl_cq_entry *) (uintptr_t) cq->kernel_address; while (1) { - bool entry_ready = ((cq_base[cq->ci] & CQ_ENTRY_READY_MASK) + bool entry_ready = ((le32_to_cpu(cq_base[cq->ci].data) & + CQ_ENTRY_READY_MASK) >> CQ_ENTRY_READY_SHIFT); if (!entry_ready) break; - cq_entry = (u32 *) &cq_base[cq->ci]; + cq_entry = (struct hl_cq_entry *) &cq_base[cq->ci]; - /* - * Make sure we read CQ entry contents after we've + /* Make sure we read CQ entry contents after we've * checked the ownership bit. */ dma_rmb(); - shadow_index_valid = - ((*cq_entry & CQ_ENTRY_SHADOW_INDEX_VALID_MASK) + shadow_index_valid = ((le32_to_cpu(cq_entry->data) & + CQ_ENTRY_SHADOW_INDEX_VALID_MASK) >> CQ_ENTRY_SHADOW_INDEX_VALID_SHIFT); - shadow_index = (u16) - ((*cq_entry & CQ_ENTRY_SHADOW_INDEX_MASK) + shadow_index = (u16) ((le32_to_cpu(cq_entry->data) & + CQ_ENTRY_SHADOW_INDEX_MASK) >> CQ_ENTRY_SHADOW_INDEX_SHIFT); queue = &hdev->kernel_queues[cq->hw_queue_id]; @@ -122,8 +121,7 @@ irqreturn_t hl_irq_handler_cq(int irq, void *arg) queue_work(hdev->cq_wq, &job->finish_work); } - /* - * Update ci of the context's queue. There is no + /* Update ci of the context's queue. There is no * need to protect it with spinlock because this update is * done only inside IRQ and there is a different IRQ per * queue @@ -131,7 +129,8 @@ irqreturn_t hl_irq_handler_cq(int irq, void *arg) queue->ci = hl_queue_inc_ptr(queue->ci); /* Clear CQ entry ready bit */ - cq_base[cq->ci] &= ~CQ_ENTRY_READY_MASK; + cq_entry->data = cpu_to_le32(le32_to_cpu(cq_entry->data) & + ~CQ_ENTRY_READY_MASK); cq->ci = hl_cq_inc_ptr(cq->ci); diff --git a/drivers/misc/habanalabs/memory.c b/drivers/misc/habanalabs/memory.c index 42d237cae1dc..365fb0cb8dff 100644 --- a/drivers/misc/habanalabs/memory.c +++ b/drivers/misc/habanalabs/memory.c @@ -1629,6 +1629,8 @@ void hl_vm_ctx_fini(struct hl_ctx *ctx) dev_dbg(hdev->dev, "page list 0x%p of asid %d is still alive\n", phys_pg_list, ctx->asid); + atomic64_sub(phys_pg_list->total_size, + &hdev->dram_used_mem); free_phys_pg_pack(hdev, phys_pg_list); idr_remove(&vm->phys_pg_pack_handles, i); } diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 03cc788511d5..654bdc41fc99 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -3780,8 +3780,6 @@ static int spi_nor_init_params(struct spi_nor *nor, default: /* Kept only for backward compatibility purpose. */ params->quad_enable = spansion_quad_enable; - if (nor->clear_sr_bp) - nor->clear_sr_bp = spi_nor_spansion_clear_sr_bp; break; } @@ -4035,6 +4033,9 @@ static int spi_nor_init(struct spi_nor *nor) int err; if (nor->clear_sr_bp) { + if (nor->quad_enable == spansion_quad_enable) + nor->clear_sr_bp = spi_nor_spansion_clear_sr_bp; + err = nor->clear_sr_bp(nor); if (err) { dev_err(nor->dev, diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 8f3fbe5ca937..c258a1ce4b28 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1286,6 +1286,9 @@ static u32 nvme_passthru_start(struct nvme_ctrl *ctrl, struct nvme_ns *ns, */ if (effects & (NVME_CMD_EFFECTS_LBCC | NVME_CMD_EFFECTS_CSE_MASK)) { mutex_lock(&ctrl->scan_lock); + mutex_lock(&ctrl->subsys->lock); + nvme_mpath_start_freeze(ctrl->subsys); + nvme_mpath_wait_freeze(ctrl->subsys); nvme_start_freeze(ctrl); nvme_wait_freeze(ctrl); } @@ -1316,6 +1319,8 @@ static void nvme_passthru_end(struct nvme_ctrl *ctrl, u32 effects) nvme_update_formats(ctrl); if (effects & (NVME_CMD_EFFECTS_LBCC | NVME_CMD_EFFECTS_CSE_MASK)) { nvme_unfreeze(ctrl); + nvme_mpath_unfreeze(ctrl->subsys); + mutex_unlock(&ctrl->subsys->lock); mutex_unlock(&ctrl->scan_lock); } if (effects & NVME_CMD_EFFECTS_CCC) @@ -1715,6 +1720,7 @@ static void __nvme_revalidate_disk(struct gendisk *disk, struct nvme_id_ns *id) if (ns->head->disk) { nvme_update_disk_info(ns->head->disk, ns, id); blk_queue_stack_limits(ns->head->disk->queue, ns->queue); + revalidate_disk(ns->head->disk); } #endif } @@ -2487,6 +2493,7 @@ static int nvme_init_subsystem(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id) if (ret) { dev_err(ctrl->device, "failed to register subsystem device.\n"); + put_device(&subsys->dev); goto out_unlock; } ida_init(&subsys->ns_ida); @@ -2509,7 +2516,6 @@ out_put_subsystem: nvme_put_subsystem(subsys); out_unlock: mutex_unlock(&nvme_subsystems_lock); - put_device(&subsys->dev); return ret; } @@ -3571,6 +3577,13 @@ void nvme_remove_namespaces(struct nvme_ctrl *ctrl) struct nvme_ns *ns, *next; LIST_HEAD(ns_list); + /* + * make sure to requeue I/O to all namespaces as these + * might result from the scan itself and must complete + * for the scan_work to make progress + */ + nvme_mpath_clear_ctrl_paths(ctrl); + /* prevent racing with ns scanning */ flush_work(&ctrl->scan_work); diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 4f0d0d12744e..888d4543894e 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -12,6 +12,36 @@ module_param(multipath, bool, 0444); MODULE_PARM_DESC(multipath, "turn on native support for multiple controllers per subsystem"); +void nvme_mpath_unfreeze(struct nvme_subsystem *subsys) +{ + struct nvme_ns_head *h; + + lockdep_assert_held(&subsys->lock); + list_for_each_entry(h, &subsys->nsheads, entry) + if (h->disk) + blk_mq_unfreeze_queue(h->disk->queue); +} + +void nvme_mpath_wait_freeze(struct nvme_subsystem *subsys) +{ + struct nvme_ns_head *h; + + lockdep_assert_held(&subsys->lock); + list_for_each_entry(h, &subsys->nsheads, entry) + if (h->disk) + blk_mq_freeze_queue_wait(h->disk->queue); +} + +void nvme_mpath_start_freeze(struct nvme_subsystem *subsys) +{ + struct nvme_ns_head *h; + + lockdep_assert_held(&subsys->lock); + list_for_each_entry(h, &subsys->nsheads, entry) + if (h->disk) + blk_freeze_queue_start(h->disk->queue); +} + /* * If multipathing is enabled we need to always use the subsystem instance * number for numbering our devices to avoid conflicts between subsystems that @@ -104,18 +134,34 @@ static const char *nvme_ana_state_names[] = { [NVME_ANA_CHANGE] = "change", }; -void nvme_mpath_clear_current_path(struct nvme_ns *ns) +bool nvme_mpath_clear_current_path(struct nvme_ns *ns) { struct nvme_ns_head *head = ns->head; + bool changed = false; int node; if (!head) - return; + goto out; for_each_node(node) { - if (ns == rcu_access_pointer(head->current_path[node])) + if (ns == rcu_access_pointer(head->current_path[node])) { rcu_assign_pointer(head->current_path[node], NULL); + changed = true; + } } +out: + return changed; +} + +void nvme_mpath_clear_ctrl_paths(struct nvme_ctrl *ctrl) +{ + struct nvme_ns *ns; + + mutex_lock(&ctrl->scan_lock); + list_for_each_entry(ns, &ctrl->namespaces, list) + if (nvme_mpath_clear_current_path(ns)) + kblockd_schedule_work(&ns->head->requeue_work); + mutex_unlock(&ctrl->scan_lock); } static bool nvme_path_is_disabled(struct nvme_ns *ns) @@ -226,6 +272,24 @@ inline struct nvme_ns *nvme_find_path(struct nvme_ns_head *head) return ns; } +static bool nvme_available_path(struct nvme_ns_head *head) +{ + struct nvme_ns *ns; + + list_for_each_entry_rcu(ns, &head->list, siblings) { + switch (ns->ctrl->state) { + case NVME_CTRL_LIVE: + case NVME_CTRL_RESETTING: + case NVME_CTRL_CONNECTING: + /* fallthru */ + return true; + default: + break; + } + } + return false; +} + static blk_qc_t nvme_ns_head_make_request(struct request_queue *q, struct bio *bio) { @@ -252,14 +316,14 @@ static blk_qc_t nvme_ns_head_make_request(struct request_queue *q, disk_devt(ns->head->disk), bio->bi_iter.bi_sector); ret = direct_make_request(bio); - } else if (!list_empty_careful(&head->list)) { - dev_warn_ratelimited(dev, "no path available - requeuing I/O\n"); + } else if (nvme_available_path(head)) { + dev_warn_ratelimited(dev, "no usable path - requeuing I/O\n"); spin_lock_irq(&head->requeue_lock); bio_list_add(&head->requeue_list, bio); spin_unlock_irq(&head->requeue_lock); } else { - dev_warn_ratelimited(dev, "no path - failing I/O\n"); + dev_warn_ratelimited(dev, "no available path - failing I/O\n"); bio->bi_status = BLK_STS_IOERR; bio_endio(bio); diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 26b563f9985b..778b3a0b6adb 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -490,6 +490,9 @@ static inline bool nvme_ctrl_use_ana(struct nvme_ctrl *ctrl) return ctrl->ana_log_buf != NULL; } +void nvme_mpath_unfreeze(struct nvme_subsystem *subsys); +void nvme_mpath_wait_freeze(struct nvme_subsystem *subsys); +void nvme_mpath_start_freeze(struct nvme_subsystem *subsys); void nvme_set_disk_name(char *disk_name, struct nvme_ns *ns, struct nvme_ctrl *ctrl, int *flags); void nvme_failover_req(struct request *req); @@ -500,7 +503,8 @@ void nvme_mpath_remove_disk(struct nvme_ns_head *head); int nvme_mpath_init(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id); void nvme_mpath_uninit(struct nvme_ctrl *ctrl); void nvme_mpath_stop(struct nvme_ctrl *ctrl); -void nvme_mpath_clear_current_path(struct nvme_ns *ns); +bool nvme_mpath_clear_current_path(struct nvme_ns *ns); +void nvme_mpath_clear_ctrl_paths(struct nvme_ctrl *ctrl); struct nvme_ns *nvme_find_path(struct nvme_ns_head *head); static inline void nvme_mpath_check_last_path(struct nvme_ns *ns) @@ -548,7 +552,11 @@ static inline void nvme_mpath_add_disk(struct nvme_ns *ns, static inline void nvme_mpath_remove_disk(struct nvme_ns_head *head) { } -static inline void nvme_mpath_clear_current_path(struct nvme_ns *ns) +static inline bool nvme_mpath_clear_current_path(struct nvme_ns *ns) +{ + return false; +} +static inline void nvme_mpath_clear_ctrl_paths(struct nvme_ctrl *ctrl) { } static inline void nvme_mpath_check_last_path(struct nvme_ns *ns) @@ -568,6 +576,15 @@ static inline void nvme_mpath_uninit(struct nvme_ctrl *ctrl) static inline void nvme_mpath_stop(struct nvme_ctrl *ctrl) { } +static inline void nvme_mpath_unfreeze(struct nvme_subsystem *subsys) +{ +} +static inline void nvme_mpath_wait_freeze(struct nvme_subsystem *subsys) +{ +} +static inline void nvme_mpath_start_freeze(struct nvme_subsystem *subsys) +{ +} #endif /* CONFIG_NVME_MULTIPATH */ #ifdef CONFIG_NVM diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index db160cee42ad..6bd9b1033965 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -2695,7 +2695,7 @@ static void nvme_async_probe(void *data, async_cookie_t cookie) { struct nvme_dev *dev = data; - nvme_reset_ctrl_sync(&dev->ctrl); + flush_work(&dev->ctrl.reset_work); flush_work(&dev->ctrl.scan_work); nvme_put_ctrl(&dev->ctrl); } @@ -2761,6 +2761,7 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id) dev_info(dev->ctrl.device, "pci function %s\n", dev_name(&pdev->dev)); + nvme_reset_ctrl(&dev->ctrl); nvme_get_ctrl(&dev->ctrl); async_schedule(nvme_async_probe, dev); @@ -2846,7 +2847,7 @@ static int nvme_resume(struct device *dev) struct nvme_dev *ndev = pci_get_drvdata(to_pci_dev(dev)); struct nvme_ctrl *ctrl = &ndev->ctrl; - if (pm_resume_via_firmware() || !ctrl->npss || + if (ndev->last_ps == U32_MAX || nvme_set_power_state(ctrl, ndev->last_ps) != 0) nvme_reset_ctrl(ctrl); return 0; @@ -2859,6 +2860,8 @@ static int nvme_suspend(struct device *dev) struct nvme_ctrl *ctrl = &ndev->ctrl; int ret = -EBUSY; + ndev->last_ps = U32_MAX; + /* * The platform does not remove power for a kernel managed suspend so * use host managed nvme power settings for lowest idle power if @@ -2866,8 +2869,14 @@ static int nvme_suspend(struct device *dev) * shutdown. But if the firmware is involved after the suspend or the * device does not support any non-default power states, shut down the * device fully. + * + * If ASPM is not enabled for the device, shut down the device and allow + * the PCI bus layer to put it into D3 in order to take the PCIe link + * down, so as to allow the platform to achieve its minimum low-power + * state (which may not be possible if the link is up). */ - if (pm_suspend_via_firmware() || !ctrl->npss) { + if (pm_suspend_via_firmware() || !ctrl->npss || + !pcie_aspm_enabled(pdev)) { nvme_dev_disable(ndev, true); return 0; } @@ -2880,7 +2889,6 @@ static int nvme_suspend(struct device *dev) ctrl->state != NVME_CTRL_ADMIN_ONLY) goto unfreeze; - ndev->last_ps = 0; ret = nvme_get_power_state(ctrl, &ndev->last_ps); if (ret < 0) goto unfreeze; diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index a249db528d54..1a6449bc547b 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -562,13 +562,17 @@ out_destroy_cm_id: return ret; } +static void __nvme_rdma_stop_queue(struct nvme_rdma_queue *queue) +{ + rdma_disconnect(queue->cm_id); + ib_drain_qp(queue->qp); +} + static void nvme_rdma_stop_queue(struct nvme_rdma_queue *queue) { if (!test_and_clear_bit(NVME_RDMA_Q_LIVE, &queue->flags)) return; - - rdma_disconnect(queue->cm_id); - ib_drain_qp(queue->qp); + __nvme_rdma_stop_queue(queue); } static void nvme_rdma_free_queue(struct nvme_rdma_queue *queue) @@ -607,11 +611,13 @@ static int nvme_rdma_start_queue(struct nvme_rdma_ctrl *ctrl, int idx) else ret = nvmf_connect_admin_queue(&ctrl->ctrl); - if (!ret) + if (!ret) { set_bit(NVME_RDMA_Q_LIVE, &queue->flags); - else + } else { + __nvme_rdma_stop_queue(queue); dev_info(ctrl->ctrl.device, "failed to connect queue: %d ret=%d\n", idx, ret); + } return ret; } diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c index cd52b9f15376..98613a45bd3b 100644 --- a/drivers/nvme/target/configfs.c +++ b/drivers/nvme/target/configfs.c @@ -675,6 +675,7 @@ static void nvmet_port_subsys_drop_link(struct config_item *parent, found: list_del(&p->entry); + nvmet_port_del_ctrls(port, subsys); nvmet_port_disc_changed(port, subsys); if (list_empty(&port->subsystems)) diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index dad0243c7c96..3a67e244e568 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -46,6 +46,9 @@ inline u16 errno_to_nvme_status(struct nvmet_req *req, int errno) u16 status; switch (errno) { + case 0: + status = NVME_SC_SUCCESS; + break; case -ENOSPC: req->error_loc = offsetof(struct nvme_rw_command, length); status = NVME_SC_CAP_EXCEEDED | NVME_SC_DNR; @@ -280,6 +283,18 @@ void nvmet_unregister_transport(const struct nvmet_fabrics_ops *ops) } EXPORT_SYMBOL_GPL(nvmet_unregister_transport); +void nvmet_port_del_ctrls(struct nvmet_port *port, struct nvmet_subsys *subsys) +{ + struct nvmet_ctrl *ctrl; + + mutex_lock(&subsys->lock); + list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry) { + if (ctrl->port == port) + ctrl->ops->delete_ctrl(ctrl); + } + mutex_unlock(&subsys->lock); +} + int nvmet_enable_port(struct nvmet_port *port) { const struct nvmet_fabrics_ops *ops; diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index b16dc3981c69..0940c5024a34 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -654,6 +654,14 @@ static void nvme_loop_remove_port(struct nvmet_port *port) mutex_lock(&nvme_loop_ports_mutex); list_del_init(&port->entry); mutex_unlock(&nvme_loop_ports_mutex); + + /* + * Ensure any ctrls that are in the process of being + * deleted are in fact deleted before we return + * and free the port. This is to prevent active + * ctrls from using a port after it's freed. + */ + flush_workqueue(nvme_delete_wq); } static const struct nvmet_fabrics_ops nvme_loop_ops = { diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index 6ee66c610739..c51f8dd01dc4 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -418,6 +418,9 @@ void nvmet_port_send_ana_event(struct nvmet_port *port); int nvmet_register_transport(const struct nvmet_fabrics_ops *ops); void nvmet_unregister_transport(const struct nvmet_fabrics_ops *ops); +void nvmet_port_del_ctrls(struct nvmet_port *port, + struct nvmet_subsys *subsys); + int nvmet_enable_port(struct nvmet_port *port); void nvmet_disable_port(struct nvmet_port *port); diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 7f84bb4903ca..a296eaf52a5b 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -277,7 +277,7 @@ EXPORT_SYMBOL_GPL(of_irq_parse_raw); * of_irq_parse_one - Resolve an interrupt for a device * @device: the device whose interrupt is to be resolved * @index: index of the interrupt to resolve - * @out_irq: structure of_irq filled by this function + * @out_irq: structure of_phandle_args filled by this function * * This function resolves an interrupt for a node by walking the interrupt tree, * finding which interrupt controller node it is attached to, and returning the diff --git a/drivers/of/resolver.c b/drivers/of/resolver.c index c1b67dd7cd6e..83c766233181 100644 --- a/drivers/of/resolver.c +++ b/drivers/of/resolver.c @@ -206,16 +206,22 @@ static int adjust_local_phandle_references(struct device_node *local_fixups, for_each_child_of_node(local_fixups, child) { for_each_child_of_node(overlay, overlay_child) - if (!node_name_cmp(child, overlay_child)) + if (!node_name_cmp(child, overlay_child)) { + of_node_put(overlay_child); break; + } - if (!overlay_child) + if (!overlay_child) { + of_node_put(child); return -EINVAL; + } err = adjust_local_phandle_references(child, overlay_child, phandle_delta); - if (err) + if (err) { + of_node_put(child); return err; + } } return 0; diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index e44af7f4d37f..464f8f92653f 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -1170,6 +1170,26 @@ static int pcie_aspm_get_policy(char *buffer, const struct kernel_param *kp) module_param_call(policy, pcie_aspm_set_policy, pcie_aspm_get_policy, NULL, 0644); +/** + * pcie_aspm_enabled - Check if PCIe ASPM has been enabled for a device. + * @pdev: Target device. + */ +bool pcie_aspm_enabled(struct pci_dev *pdev) +{ + struct pci_dev *bridge = pci_upstream_bridge(pdev); + bool ret; + + if (!bridge) + return false; + + mutex_lock(&aspm_lock); + ret = bridge->link_state ? !!bridge->link_state->aspm_enabled : false; + mutex_unlock(&aspm_lock); + + return ret; +} +EXPORT_SYMBOL_GPL(pcie_aspm_enabled); + #ifdef CONFIG_PCIEASPM_DEBUG static ssize_t link_state_show(struct device *dev, struct device_attribute *attr, diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index faf43b1d3dbe..a7549ae32542 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -10776,12 +10776,31 @@ lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) /* This loop sets up all CPUs that are affinitized with a * irq vector assigned to the driver. All affinitized CPUs * will get a link to that vectors IRQ and EQ. + * + * NULL affinity mask handling: + * If irq count is greater than one, log an error message. + * If the null mask is received for the first irq, find the + * first present cpu, and assign the eq index to ensure at + * least one EQ is assigned. */ for (idx = 0; idx < phba->cfg_irq_chann; idx++) { /* Get a CPU mask for all CPUs affinitized to this vector */ maskp = pci_irq_get_affinity(phba->pcidev, idx); - if (!maskp) - continue; + if (!maskp) { + if (phba->cfg_irq_chann > 1) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3329 No affinity mask found " + "for vector %d (%d)\n", + idx, phba->cfg_irq_chann); + if (!idx) { + cpu = cpumask_first(cpu_present_mask); + cpup = &phba->sli4_hba.cpu_map[cpu]; + cpup->eq = idx; + cpup->irq = pci_irq_vector(phba->pcidev, idx); + cpup->flag |= LPFC_CPU_FIRST_IRQ; + } + break; + } i = 0; /* Loop through all CPUs associated with vector idx */ diff --git a/drivers/soundwire/Kconfig b/drivers/soundwire/Kconfig index 3a01cfd70fdc..f518273cfbe3 100644 --- a/drivers/soundwire/Kconfig +++ b/drivers/soundwire/Kconfig @@ -4,7 +4,7 @@ # menuconfig SOUNDWIRE - bool "SoundWire support" + tristate "SoundWire support" help SoundWire is a 2-Pin interface with data and clock line ratified by the MIPI Alliance. SoundWire is used for transporting data @@ -17,17 +17,12 @@ if SOUNDWIRE comment "SoundWire Devices" -config SOUNDWIRE_BUS - tristate - select REGMAP_SOUNDWIRE - config SOUNDWIRE_CADENCE tristate config SOUNDWIRE_INTEL tristate "Intel SoundWire Master driver" select SOUNDWIRE_CADENCE - select SOUNDWIRE_BUS depends on X86 && ACPI && SND_SOC help SoundWire Intel Master driver. diff --git a/drivers/soundwire/Makefile b/drivers/soundwire/Makefile index fd99a831b92a..45b7e5001653 100644 --- a/drivers/soundwire/Makefile +++ b/drivers/soundwire/Makefile @@ -5,7 +5,7 @@ #Bus Objs soundwire-bus-objs := bus_type.o bus.o slave.o mipi_disco.o stream.o -obj-$(CONFIG_SOUNDWIRE_BUS) += soundwire-bus.o +obj-$(CONFIG_SOUNDWIRE) += soundwire-bus.o #Cadence Objs soundwire-cadence-objs := cadence_master.o diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c index ff4badc9b3de..60e8bdee5c75 100644 --- a/drivers/soundwire/cadence_master.c +++ b/drivers/soundwire/cadence_master.c @@ -81,8 +81,8 @@ #define CDNS_MCP_INTSET 0x4C -#define CDNS_SDW_SLAVE_STAT 0x50 -#define CDNS_MCP_SLAVE_STAT_MASK BIT(1, 0) +#define CDNS_MCP_SLAVE_STAT 0x50 +#define CDNS_MCP_SLAVE_STAT_MASK GENMASK(1, 0) #define CDNS_MCP_SLAVE_INTSTAT0 0x54 #define CDNS_MCP_SLAVE_INTSTAT1 0x58 @@ -96,8 +96,8 @@ #define CDNS_MCP_SLAVE_INTMASK0 0x5C #define CDNS_MCP_SLAVE_INTMASK1 0x60 -#define CDNS_MCP_SLAVE_INTMASK0_MASK GENMASK(30, 0) -#define CDNS_MCP_SLAVE_INTMASK1_MASK GENMASK(16, 0) +#define CDNS_MCP_SLAVE_INTMASK0_MASK GENMASK(31, 0) +#define CDNS_MCP_SLAVE_INTMASK1_MASK GENMASK(15, 0) #define CDNS_MCP_PORT_INTSTAT 0x64 #define CDNS_MCP_PDI_STAT 0x6C diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig index 7c96a01eef6c..fbdc33874780 100644 --- a/drivers/staging/Kconfig +++ b/drivers/staging/Kconfig @@ -112,12 +112,12 @@ source "drivers/staging/gasket/Kconfig" source "drivers/staging/axis-fifo/Kconfig" -source "drivers/staging/erofs/Kconfig" - source "drivers/staging/fieldbus/Kconfig" source "drivers/staging/kpc2000/Kconfig" source "drivers/staging/isdn/Kconfig" +source "drivers/staging/exfat/Kconfig" + endif # STAGING diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile index fcaac9693b83..ca13f87b1e1b 100644 --- a/drivers/staging/Makefile +++ b/drivers/staging/Makefile @@ -46,7 +46,7 @@ obj-$(CONFIG_DMA_RALINK) += ralink-gdma/ obj-$(CONFIG_SOC_MT7621) += mt7621-dts/ obj-$(CONFIG_STAGING_GASKET_FRAMEWORK) += gasket/ obj-$(CONFIG_XIL_AXIS_FIFO) += axis-fifo/ -obj-$(CONFIG_EROFS_FS) += erofs/ obj-$(CONFIG_FIELDBUS_DEV) += fieldbus/ obj-$(CONFIG_KPC2000) += kpc2000/ obj-$(CONFIG_ISDN_CAPI) += isdn/ +obj-$(CONFIG_EXFAT_FS) += exfat/ diff --git a/drivers/staging/android/TODO b/drivers/staging/android/TODO index fbf015cc6d62..767dd98fd92d 100644 --- a/drivers/staging/android/TODO +++ b/drivers/staging/android/TODO @@ -6,8 +6,6 @@ TODO: ion/ - - Add dt-bindings for remaining heaps (chunk and carveout heaps). This would - involve putting appropriate bindings in a memory node for Ion to find. - Split /dev/ion up into multiple nodes (e.g. /dev/ion/heap0) - Better test framework (integration with VGEM was suggested) diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c index 2edf3ee91300..caf4d4df4bd3 100644 --- a/drivers/staging/comedi/drivers/dt3000.c +++ b/drivers/staging/comedi/drivers/dt3000.c @@ -342,9 +342,9 @@ static irqreturn_t dt3k_interrupt(int irq, void *d) static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *nanosec, unsigned int flags) { - int divider, base, prescale; + unsigned int divider, base, prescale; - /* This function needs improvment */ + /* This function needs improvement */ /* Don't know if divider==0 works. */ for (prescale = 0; prescale < 16; prescale++) { @@ -358,7 +358,7 @@ static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *nanosec, divider = (*nanosec) / base; break; case CMDF_ROUND_UP: - divider = (*nanosec) / base; + divider = DIV_ROUND_UP(*nanosec, base); break; } if (divider < 65536) { @@ -368,7 +368,7 @@ static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *nanosec, } prescale = 15; - base = timer_base * (1 << prescale); + base = timer_base * (prescale + 1); divider = 65535; *nanosec = divider * base; return (prescale << 16) | (divider); diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index c175227009f1..f98e3ae27bff 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -596,7 +596,7 @@ static int ni_request_ao_mite_channel(struct comedi_device *dev) if (!mite_chan) { spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); dev_err(dev->class_dev, - "failed to reserve mite dma channel for analog outut\n"); + "failed to reserve mite dma channel for analog output\n"); return -EBUSY; } mite_chan->dir = COMEDI_OUTPUT; diff --git a/drivers/staging/erofs/TODO b/drivers/staging/erofs/TODO deleted file mode 100644 index a8608b2f72bd..000000000000 --- a/drivers/staging/erofs/TODO +++ /dev/null @@ -1,46 +0,0 @@ - -EROFS is still working in progress, thus it is not suitable -for all productive uses. play at your own risk :) - -TODO List: - - add the missing error handling code - (mainly existed in xattr and decompression submodules); - - - finalize erofs ondisk format design (which means that - minor on-disk revisions could happen later); - - - documentation and detailed technical analysis; - - - general code review and clean up - (including confusing variable names and code snippets); - - - support larger compressed clustersizes for selection - (currently erofs only works as expected with the page-sized - compressed cluster configuration, usually 4KB); - - - support more lossless data compression algorithms - in addition to LZ4 algorithms in VLE approach; - - - data deduplication and other useful features. - -The following git tree provides the file system user-space -tools under development (ex, formatting tool mkfs.erofs): ->> git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs-utils.git - -The open-source development of erofs-utils is at the early stage. -Contact the original author Li Guifu <bluce.liguifu@huawei.com> and -the co-maintainer Fang Wei <fangwei1@huawei.com> for the latest news -and more details. - -Code, suggestions, etc, are welcome. Please feel free to -ask and send patches, - -To: - linux-erofs mailing list <linux-erofs@lists.ozlabs.org> - Gao Xiang <gaoxiang25@huawei.com> - Chao Yu <yuchao0@huawei.com> - -Cc: (for linux-kernel upstream patches) - Greg Kroah-Hartman <gregkh@linuxfoundation.org> - linux-staging mailing list <devel@driverdev.osuosl.org> - diff --git a/drivers/staging/exfat/Kconfig b/drivers/staging/exfat/Kconfig new file mode 100644 index 000000000000..290dbfc7ace1 --- /dev/null +++ b/drivers/staging/exfat/Kconfig @@ -0,0 +1,49 @@ +config EXFAT_FS + tristate "exFAT fs support" + depends on BLOCK + select NLS + help + This adds support for the exFAT file system. + +config EXFAT_DONT_MOUNT_VFAT + bool "Prohibit mounting of fat/vfat filesysems by exFAT" + depends on EXFAT_FS + default y + help + By default, the exFAT driver will only mount exFAT filesystems, and refuse + to mount fat/vfat filesystems. Set this to 'n' to allow the exFAT driver + to mount these filesystems. + +config EXFAT_DISCARD + bool "enable discard support" + depends on EXFAT_FS + default y + +config EXFAT_DELAYED_SYNC + bool "enable delayed sync" + depends on EXFAT_FS + default n + +config EXFAT_KERNEL_DEBUG + bool "enable kernel debug features via ioctl" + depends on EXFAT_FS + default n + +config EXFAT_DEBUG_MSG + bool "print debug messages" + depends on EXFAT_FS + default n + +config EXFAT_DEFAULT_CODEPAGE + int "Default codepage for exFAT" + default 437 + depends on EXFAT_FS + help + This option should be set to the codepage of your exFAT filesystems. + +config EXFAT_DEFAULT_IOCHARSET + string "Default iocharset for exFAT" + default "utf8" + depends on EXFAT_FS + help + Set this to the default input/output character set you'd like exFAT to use. diff --git a/drivers/staging/exfat/Makefile b/drivers/staging/exfat/Makefile new file mode 100644 index 000000000000..84944dfbae28 --- /dev/null +++ b/drivers/staging/exfat/Makefile @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-$(CONFIG_EXFAT_FS) += exfat.o + +exfat-y := exfat_core.o \ + exfat_super.o \ + exfat_blkdev.o \ + exfat_cache.o \ + exfat_nls.o \ + exfat_upcase.o diff --git a/drivers/staging/exfat/TODO b/drivers/staging/exfat/TODO new file mode 100644 index 000000000000..a3eb282f9efc --- /dev/null +++ b/drivers/staging/exfat/TODO @@ -0,0 +1,12 @@ +exfat_core.c - ffsReadFile - the goto err_out seem to leak a brelse(). +same for ffsWriteFile. + +exfat_core.c - fs_sync(sb,0) all over the place looks fishy as hell. +There's only one place that calls it with a non-zero argument. + +ffsTruncateFile - if (old_size <= new_size) { +That doesn't look right. How did it ever work? Are they relying on lazy +block allocation when actual writes happen? If nothing else, it never +does the 'fid->size = new_size' and do the inode update.... + +ffsSetAttr() is just dangling in the breeze, not wired up at all... diff --git a/drivers/staging/exfat/exfat.h b/drivers/staging/exfat/exfat.h new file mode 100644 index 000000000000..0aa14dea4e09 --- /dev/null +++ b/drivers/staging/exfat/exfat.h @@ -0,0 +1,971 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2012-2013 Samsung Electronics Co., Ltd. + */ + +#ifndef _EXFAT_H +#define _EXFAT_H + +#include <linux/types.h> +#include <linux/buffer_head.h> + +#ifdef CONFIG_EXFAT_KERNEL_DEBUG + /* For Debugging Purpose */ + /* IOCTL code 'f' used by + * - file systems typically #0~0x1F + * - embedded terminal devices #128~ + * - exts for debugging purpose #99 + * number 100 and 101 is available now but has possible conflicts + */ +#define EXFAT_IOC_GET_DEBUGFLAGS _IOR('f', 100, long) +#define EXFAT_IOC_SET_DEBUGFLAGS _IOW('f', 101, long) + +#define EXFAT_DEBUGFLAGS_INVALID_UMOUNT 0x01 +#define EXFAT_DEBUGFLAGS_ERROR_RW 0x02 +#endif /* CONFIG_EXFAT_KERNEL_DEBUG */ + +#ifdef CONFIG_EXFAT_DEBUG_MSG +#define DEBUG 1 +#else +#undef DEBUG +#endif + +#define DENTRY_SIZE 32 /* dir entry size */ +#define DENTRY_SIZE_BITS 5 + +/* PBR entries */ +#define PBR_SIGNATURE 0xAA55 +#define EXT_SIGNATURE 0xAA550000 +#define VOL_LABEL "NO NAME " /* size should be 11 */ +#define OEM_NAME "MSWIN4.1" /* size should be 8 */ +#define STR_FAT12 "FAT12 " /* size should be 8 */ +#define STR_FAT16 "FAT16 " /* size should be 8 */ +#define STR_FAT32 "FAT32 " /* size should be 8 */ +#define STR_EXFAT "EXFAT " /* size should be 8 */ +#define VOL_CLEAN 0x0000 +#define VOL_DIRTY 0x0002 + +/* max number of clusters */ +#define FAT12_THRESHOLD 4087 /* 2^12 - 1 + 2 (clu 0 & 1) */ +#define FAT16_THRESHOLD 65527 /* 2^16 - 1 + 2 */ +#define FAT32_THRESHOLD 268435457 /* 2^28 - 1 + 2 */ +#define EXFAT_THRESHOLD 268435457 /* 2^28 - 1 + 2 */ + +/* file types */ +#define TYPE_UNUSED 0x0000 +#define TYPE_DELETED 0x0001 +#define TYPE_INVALID 0x0002 +#define TYPE_CRITICAL_PRI 0x0100 +#define TYPE_BITMAP 0x0101 +#define TYPE_UPCASE 0x0102 +#define TYPE_VOLUME 0x0103 +#define TYPE_DIR 0x0104 +#define TYPE_FILE 0x011F +#define TYPE_SYMLINK 0x015F +#define TYPE_CRITICAL_SEC 0x0200 +#define TYPE_STREAM 0x0201 +#define TYPE_EXTEND 0x0202 +#define TYPE_ACL 0x0203 +#define TYPE_BENIGN_PRI 0x0400 +#define TYPE_GUID 0x0401 +#define TYPE_PADDING 0x0402 +#define TYPE_ACLTAB 0x0403 +#define TYPE_BENIGN_SEC 0x0800 +#define TYPE_ALL 0x0FFF + +/* time modes */ +#define TM_CREATE 0 +#define TM_MODIFY 1 +#define TM_ACCESS 2 + +/* checksum types */ +#define CS_DIR_ENTRY 0 +#define CS_PBR_SECTOR 1 +#define CS_DEFAULT 2 + +#define CLUSTER_16(x) ((u16)(x)) +#define CLUSTER_32(x) ((u32)(x)) + +#define START_SECTOR(x) \ + ((((sector_t)((x) - 2)) << p_fs->sectors_per_clu_bits) + \ + p_fs->data_start_sector) + +#define IS_LAST_SECTOR_IN_CLUSTER(sec) \ + ((((sec) - p_fs->data_start_sector + 1) & \ + ((1 << p_fs->sectors_per_clu_bits) - 1)) == 0) + +#define GET_CLUSTER_FROM_SECTOR(sec) \ + ((u32)((((sec) - p_fs->data_start_sector) >> \ + p_fs->sectors_per_clu_bits) + 2)) + +#define GET16(p_src) \ + (((u16)(p_src)[0]) | (((u16)(p_src)[1]) << 8)) +#define GET32(p_src) \ + (((u32)(p_src)[0]) | (((u32)(p_src)[1]) << 8) | \ + (((u32)(p_src)[2]) << 16) | (((u32)(p_src)[3]) << 24)) +#define GET64(p_src) \ + (((u64)(p_src)[0]) | (((u64)(p_src)[1]) << 8) | \ + (((u64)(p_src)[2]) << 16) | (((u64)(p_src)[3]) << 24) | \ + (((u64)(p_src)[4]) << 32) | (((u64)(p_src)[5]) << 40) | \ + (((u64)(p_src)[6]) << 48) | (((u64)(p_src)[7]) << 56)) + +#define SET16(p_dst, src) \ + do { \ + (p_dst)[0] = (u8)(src); \ + (p_dst)[1] = (u8)(((u16)(src)) >> 8); \ + } while (0) +#define SET32(p_dst, src) \ + do { \ + (p_dst)[0] = (u8)(src); \ + (p_dst)[1] = (u8)(((u32)(src)) >> 8); \ + (p_dst)[2] = (u8)(((u32)(src)) >> 16); \ + (p_dst)[3] = (u8)(((u32)(src)) >> 24); \ + } while (0) +#define SET64(p_dst, src) \ + do { \ + (p_dst)[0] = (u8)(src); \ + (p_dst)[1] = (u8)(((u64)(src)) >> 8); \ + (p_dst)[2] = (u8)(((u64)(src)) >> 16); \ + (p_dst)[3] = (u8)(((u64)(src)) >> 24); \ + (p_dst)[4] = (u8)(((u64)(src)) >> 32); \ + (p_dst)[5] = (u8)(((u64)(src)) >> 40); \ + (p_dst)[6] = (u8)(((u64)(src)) >> 48); \ + (p_dst)[7] = (u8)(((u64)(src)) >> 56); \ + } while (0) + +#ifdef __LITTLE_ENDIAN +#define GET16_A(p_src) (*((u16 *)(p_src))) +#define GET32_A(p_src) (*((u32 *)(p_src))) +#define GET64_A(p_src) (*((u64 *)(p_src))) +#define SET16_A(p_dst, src) (*((u16 *)(p_dst)) = (u16)(src)) +#define SET32_A(p_dst, src) (*((u32 *)(p_dst)) = (u32)(src)) +#define SET64_A(p_dst, src) (*((u64 *)(p_dst)) = (u64)(src)) +#else /* BIG_ENDIAN */ +#define GET16_A(p_src) GET16(p_src) +#define GET32_A(p_src) GET32(p_src) +#define GET64_A(p_src) GET64(p_src) +#define SET16_A(p_dst, src) SET16(p_dst, src) +#define SET32_A(p_dst, src) SET32(p_dst, src) +#define SET64_A(p_dst, src) SET64(p_dst, src) +#endif + +/* cache size (in number of sectors) */ +/* (should be an exponential value of 2) */ +#define FAT_CACHE_SIZE 128 +#define FAT_CACHE_HASH_SIZE 64 +#define BUF_CACHE_SIZE 256 +#define BUF_CACHE_HASH_SIZE 64 + +/* Upcase table macro */ +#define HIGH_INDEX_BIT (8) +#define HIGH_INDEX_MASK (0xFF00) +#define LOW_INDEX_BIT (16-HIGH_INDEX_BIT) +#define UTBL_ROW_COUNT BIT(LOW_INDEX_BIT) +#define UTBL_COL_COUNT BIT(HIGH_INDEX_BIT) + +static inline u16 get_col_index(u16 i) +{ + return i >> LOW_INDEX_BIT; +} + +static inline u16 get_row_index(u16 i) +{ + return i & ~HIGH_INDEX_MASK; +} + +#define EXFAT_SUPER_MAGIC (0x2011BAB0L) +#define EXFAT_ROOT_INO 1 + +/* FAT types */ +#define FAT12 0x01 /* FAT12 */ +#define FAT16 0x0E /* Win95 FAT16 (LBA) */ +#define FAT32 0x0C /* Win95 FAT32 (LBA) */ +#define EXFAT 0x07 /* exFAT */ + +/* file name lengths */ +#define MAX_CHARSET_SIZE 3 /* max size of multi-byte character */ +#define MAX_PATH_DEPTH 15 /* max depth of path name */ +#define MAX_NAME_LENGTH 256 /* max len of filename including NULL */ +#define MAX_PATH_LENGTH 260 /* max len of pathname including NULL */ +#define DOS_NAME_LENGTH 11 /* DOS filename length excluding NULL */ +#define DOS_PATH_LENGTH 80 /* DOS pathname length excluding NULL */ + +/* file attributes */ +#define ATTR_NORMAL 0x0000 +#define ATTR_READONLY 0x0001 +#define ATTR_HIDDEN 0x0002 +#define ATTR_SYSTEM 0x0004 +#define ATTR_VOLUME 0x0008 +#define ATTR_SUBDIR 0x0010 +#define ATTR_ARCHIVE 0x0020 +#define ATTR_SYMLINK 0x0040 +#define ATTR_EXTEND 0x000F +#define ATTR_RWMASK 0x007E + +/* file creation modes */ +#define FM_REGULAR 0x00 +#define FM_SYMLINK 0x40 + +/* return values */ +#define FFS_SUCCESS 0 +#define FFS_MEDIAERR 1 +#define FFS_FORMATERR 2 +#define FFS_MOUNTED 3 +#define FFS_NOTMOUNTED 4 +#define FFS_ALIGNMENTERR 5 +#define FFS_SEMAPHOREERR 6 +#define FFS_INVALIDPATH 7 +#define FFS_INVALIDFID 8 +#define FFS_NOTFOUND 9 +#define FFS_FILEEXIST 10 +#define FFS_PERMISSIONERR 11 +#define FFS_NOTOPENED 12 +#define FFS_MAXOPENED 13 +#define FFS_FULL 14 +#define FFS_EOF 15 +#define FFS_DIRBUSY 16 +#define FFS_MEMORYERR 17 +#define FFS_NAMETOOLONG 18 +#define FFS_ERROR 19 + +#define NUM_UPCASE 2918 + +#define DOS_CUR_DIR_NAME ". " +#define DOS_PAR_DIR_NAME ".. " + +#ifdef __LITTLE_ENDIAN +#define UNI_CUR_DIR_NAME ".\0" +#define UNI_PAR_DIR_NAME ".\0.\0" +#else +#define UNI_CUR_DIR_NAME "\0." +#define UNI_PAR_DIR_NAME "\0.\0." +#endif + +struct date_time_t { + u16 Year; + u16 Month; + u16 Day; + u16 Hour; + u16 Minute; + u16 Second; + u16 MilliSecond; +}; + +struct part_info_t { + u32 Offset; /* start sector number of the partition */ + u32 Size; /* in sectors */ +}; + +struct dev_info_t { + u32 SecSize; /* sector size in bytes */ + u32 DevSize; /* block device size in sectors */ +}; + +struct vol_info_t { + u32 FatType; + u32 ClusterSize; + u32 NumClusters; + u32 FreeClusters; + u32 UsedClusters; +}; + +/* directory structure */ +struct chain_t { + u32 dir; + s32 size; + u8 flags; +}; + +struct file_id_t { + struct chain_t dir; + s32 entry; + u32 type; + u32 attr; + u32 start_clu; + u64 size; + u8 flags; + s64 rwoffset; + s32 hint_last_off; + u32 hint_last_clu; +}; + +struct dir_entry_t { + char Name[MAX_NAME_LENGTH * MAX_CHARSET_SIZE]; + + /* used only for FAT12/16/32, not used for exFAT */ + char ShortName[DOS_NAME_LENGTH + 2]; + + u32 Attr; + u64 Size; + u32 NumSubdirs; + struct date_time_t CreateTimestamp; + struct date_time_t ModifyTimestamp; + struct date_time_t AccessTimestamp; +}; + +struct timestamp_t { + u16 sec; /* 0 ~ 59 */ + u16 min; /* 0 ~ 59 */ + u16 hour; /* 0 ~ 23 */ + u16 day; /* 1 ~ 31 */ + u16 mon; /* 1 ~ 12 */ + u16 year; /* 0 ~ 127 (since 1980) */ +}; + +/* MS_DOS FAT partition boot record (512 bytes) */ +struct pbr_sector_t { + u8 jmp_boot[3]; + u8 oem_name[8]; + u8 bpb[109]; + u8 boot_code[390]; + u8 signature[2]; +}; + +/* MS-DOS FAT12/16 BIOS parameter block (51 bytes) */ +struct bpb16_t { + u8 sector_size[2]; + u8 sectors_per_clu; + u8 num_reserved[2]; + u8 num_fats; + u8 num_root_entries[2]; + u8 num_sectors[2]; + u8 media_type; + u8 num_fat_sectors[2]; + u8 sectors_in_track[2]; + u8 num_heads[2]; + u8 num_hid_sectors[4]; + u8 num_huge_sectors[4]; + + u8 phy_drv_no; + u8 reserved; + u8 ext_signature; + u8 vol_serial[4]; + u8 vol_label[11]; + u8 vol_type[8]; +}; + +/* MS-DOS FAT32 BIOS parameter block (79 bytes) */ +struct bpb32_t { + u8 sector_size[2]; + u8 sectors_per_clu; + u8 num_reserved[2]; + u8 num_fats; + u8 num_root_entries[2]; + u8 num_sectors[2]; + u8 media_type; + u8 num_fat_sectors[2]; + u8 sectors_in_track[2]; + u8 num_heads[2]; + u8 num_hid_sectors[4]; + u8 num_huge_sectors[4]; + u8 num_fat32_sectors[4]; + u8 ext_flags[2]; + u8 fs_version[2]; + u8 root_cluster[4]; + u8 fsinfo_sector[2]; + u8 backup_sector[2]; + u8 reserved[12]; + + u8 phy_drv_no; + u8 ext_reserved; + u8 ext_signature; + u8 vol_serial[4]; + u8 vol_label[11]; + u8 vol_type[8]; +}; + +/* MS-DOS EXFAT BIOS parameter block (109 bytes) */ +struct bpbex_t { + u8 reserved1[53]; + u8 vol_offset[8]; + u8 vol_length[8]; + u8 fat_offset[4]; + u8 fat_length[4]; + u8 clu_offset[4]; + u8 clu_count[4]; + u8 root_cluster[4]; + u8 vol_serial[4]; + u8 fs_version[2]; + u8 vol_flags[2]; + u8 sector_size_bits; + u8 sectors_per_clu_bits; + u8 num_fats; + u8 phy_drv_no; + u8 perc_in_use; + u8 reserved2[7]; +}; + +/* MS-DOS FAT file system information sector (512 bytes) */ +struct fsi_sector_t { + u8 signature1[4]; + u8 reserved1[480]; + u8 signature2[4]; + u8 free_cluster[4]; + u8 next_cluster[4]; + u8 reserved2[14]; + u8 signature3[2]; +}; + +/* MS-DOS FAT directory entry (32 bytes) */ +struct dentry_t { + u8 dummy[32]; +}; + +struct dos_dentry_t { + u8 name[DOS_NAME_LENGTH]; + u8 attr; + u8 lcase; + u8 create_time_ms; + u8 create_time[2]; + u8 create_date[2]; + u8 access_date[2]; + u8 start_clu_hi[2]; + u8 modify_time[2]; + u8 modify_date[2]; + u8 start_clu_lo[2]; + u8 size[4]; +}; + +/* MS-DOS FAT extended directory entry (32 bytes) */ +struct ext_dentry_t { + u8 order; + u8 unicode_0_4[10]; + u8 attr; + u8 sysid; + u8 checksum; + u8 unicode_5_10[12]; + u8 start_clu[2]; + u8 unicode_11_12[4]; +}; + +/* MS-DOS EXFAT file directory entry (32 bytes) */ +struct file_dentry_t { + u8 type; + u8 num_ext; + u8 checksum[2]; + u8 attr[2]; + u8 reserved1[2]; + u8 create_time[2]; + u8 create_date[2]; + u8 modify_time[2]; + u8 modify_date[2]; + u8 access_time[2]; + u8 access_date[2]; + u8 create_time_ms; + u8 modify_time_ms; + u8 access_time_ms; + u8 reserved2[9]; +}; + +/* MS-DOS EXFAT stream extension directory entry (32 bytes) */ +struct strm_dentry_t { + u8 type; + u8 flags; + u8 reserved1; + u8 name_len; + u8 name_hash[2]; + u8 reserved2[2]; + u8 valid_size[8]; + u8 reserved3[4]; + u8 start_clu[4]; + u8 size[8]; +}; + +/* MS-DOS EXFAT file name directory entry (32 bytes) */ +struct name_dentry_t { + u8 type; + u8 flags; + u8 unicode_0_14[30]; +}; + +/* MS-DOS EXFAT allocation bitmap directory entry (32 bytes) */ +struct bmap_dentry_t { + u8 type; + u8 flags; + u8 reserved[18]; + u8 start_clu[4]; + u8 size[8]; +}; + +/* MS-DOS EXFAT up-case table directory entry (32 bytes) */ +struct case_dentry_t { + u8 type; + u8 reserved1[3]; + u8 checksum[4]; + u8 reserved2[12]; + u8 start_clu[4]; + u8 size[8]; +}; + +/* MS-DOS EXFAT volume label directory entry (32 bytes) */ +struct volm_dentry_t { + u8 type; + u8 label_len; + u8 unicode_0_10[22]; + u8 reserved[8]; +}; + +/* unused entry hint information */ +struct uentry_t { + u32 dir; + s32 entry; + struct chain_t clu; +}; + +/* DOS name structure */ +struct dos_name_t { + u8 name[DOS_NAME_LENGTH]; + u8 name_case; +}; + +/* unicode name structure */ +struct uni_name_t { + u16 name[MAX_NAME_LENGTH]; + u16 name_hash; + u8 name_len; +}; + +struct buf_cache_t { + struct buf_cache_t *next; + struct buf_cache_t *prev; + struct buf_cache_t *hash_next; + struct buf_cache_t *hash_prev; + s32 drv; + sector_t sec; + u32 flag; + struct buffer_head *buf_bh; +}; + +struct fs_func { + s32 (*alloc_cluster)(struct super_block *sb, s32 num_alloc, + struct chain_t *p_chain); + void (*free_cluster)(struct super_block *sb, struct chain_t *p_chain, + s32 do_relse); + s32 (*count_used_clusters)(struct super_block *sb); + + s32 (*init_dir_entry)(struct super_block *sb, struct chain_t *p_dir, + s32 entry, u32 type, u32 start_clu, u64 size); + s32 (*init_ext_entry)(struct super_block *sb, struct chain_t *p_dir, + s32 entry, s32 num_entries, + struct uni_name_t *p_uniname, + struct dos_name_t *p_dosname); + s32 (*find_dir_entry)(struct super_block *sb, struct chain_t *p_dir, + struct uni_name_t *p_uniname, s32 num_entries, + struct dos_name_t *p_dosname, u32 type); + void (*delete_dir_entry)(struct super_block *sb, + struct chain_t *p_dir, s32 entry, + s32 offset, s32 num_entries); + void (*get_uni_name_from_ext_entry)(struct super_block *sb, + struct chain_t *p_dir, s32 entry, + u16 *uniname); + s32 (*count_ext_entries)(struct super_block *sb, + struct chain_t *p_dir, s32 entry, + struct dentry_t *p_entry); + s32 (*calc_num_entries)(struct uni_name_t *p_uniname); + + u32 (*get_entry_type)(struct dentry_t *p_entry); + void (*set_entry_type)(struct dentry_t *p_entry, u32 type); + u32 (*get_entry_attr)(struct dentry_t *p_entry); + void (*set_entry_attr)(struct dentry_t *p_entry, u32 attr); + u8 (*get_entry_flag)(struct dentry_t *p_entry); + void (*set_entry_flag)(struct dentry_t *p_entry, u8 flag); + u32 (*get_entry_clu0)(struct dentry_t *p_entry); + void (*set_entry_clu0)(struct dentry_t *p_entry, u32 clu0); + u64 (*get_entry_size)(struct dentry_t *p_entry); + void (*set_entry_size)(struct dentry_t *p_entry, u64 size); + void (*get_entry_time)(struct dentry_t *p_entry, + struct timestamp_t *tp, u8 mode); + void (*set_entry_time)(struct dentry_t *p_entry, + struct timestamp_t *tp, u8 mode); +}; + +struct fs_info_t { + u32 drv; /* drive ID */ + u32 vol_type; /* volume FAT type */ + u32 vol_id; /* volume serial number */ + + u64 num_sectors; /* num of sectors in volume */ + u32 num_clusters; /* num of clusters in volume */ + u32 cluster_size; /* cluster size in bytes */ + u32 cluster_size_bits; + u32 sectors_per_clu; /* cluster size in sectors */ + u32 sectors_per_clu_bits; + + u32 PBR_sector; /* PBR sector */ + u32 FAT1_start_sector; /* FAT1 start sector */ + u32 FAT2_start_sector; /* FAT2 start sector */ + u32 root_start_sector; /* root dir start sector */ + u32 data_start_sector; /* data area start sector */ + u32 num_FAT_sectors; /* num of FAT sectors */ + + u32 root_dir; /* root dir cluster */ + u32 dentries_in_root; /* num of dentries in root dir */ + u32 dentries_per_clu; /* num of dentries per cluster */ + + u32 vol_flag; /* volume dirty flag */ + struct buffer_head *pbr_bh; /* PBR sector */ + + u32 map_clu; /* allocation bitmap start cluster */ + u32 map_sectors; /* num of allocation bitmap sectors */ + struct buffer_head **vol_amap; /* allocation bitmap */ + + u16 **vol_utbl; /* upcase table */ + + u32 clu_srch_ptr; /* cluster search pointer */ + u32 used_clusters; /* number of used clusters */ + struct uentry_t hint_uentry; /* unused entry hint information */ + + u32 dev_ejected; /* block device operation error flag */ + + struct fs_func *fs_func; + struct semaphore v_sem; + + /* FAT cache */ + struct buf_cache_t FAT_cache_array[FAT_CACHE_SIZE]; + struct buf_cache_t FAT_cache_lru_list; + struct buf_cache_t FAT_cache_hash_list[FAT_CACHE_HASH_SIZE]; + + /* buf cache */ + struct buf_cache_t buf_cache_array[BUF_CACHE_SIZE]; + struct buf_cache_t buf_cache_lru_list; + struct buf_cache_t buf_cache_hash_list[BUF_CACHE_HASH_SIZE]; +}; + +#define ES_2_ENTRIES 2 +#define ES_3_ENTRIES 3 +#define ES_ALL_ENTRIES 0 + +struct entry_set_cache_t { + /* sector number that contains file_entry */ + sector_t sector; + + /* byte offset in the sector */ + s32 offset; + + /* + * flag in stream entry. + * 01 for cluster chain, + * 03 for contig. clusteres. + */ + s32 alloc_flag; + + u32 num_entries; + + /* __buf should be the last member */ + void *__buf; +}; + +#define EXFAT_ERRORS_CONT 1 /* ignore error and continue */ +#define EXFAT_ERRORS_PANIC 2 /* panic on error */ +#define EXFAT_ERRORS_RO 3 /* remount r/o on error */ + +/* ioctl command */ +#define EXFAT_IOCTL_GET_VOLUME_ID _IOR('r', 0x12, __u32) + +struct exfat_mount_options { + kuid_t fs_uid; + kgid_t fs_gid; + unsigned short fs_fmask; + unsigned short fs_dmask; + + /* permission for setting the [am]time */ + unsigned short allow_utime; + + /* codepage for shortname conversions */ + unsigned short codepage; + + /* charset for filename input/display */ + char *iocharset; + + unsigned char casesensitive; + + /* on error: continue, panic, remount-ro */ + unsigned char errors; +#ifdef CONFIG_EXFAT_DISCARD + /* flag on if -o dicard specified and device support discard() */ + unsigned char discard; +#endif /* CONFIG_EXFAT_DISCARD */ +}; + +#define EXFAT_HASH_BITS 8 +#define EXFAT_HASH_SIZE BIT(EXFAT_HASH_BITS) + +/* + * EXFAT file system in-core superblock data + */ +struct bd_info_t { + s32 sector_size; /* in bytes */ + s32 sector_size_bits; + s32 sector_size_mask; + + /* total number of sectors in this block device */ + s32 num_sectors; + + /* opened or not */ + bool opened; +}; + +struct exfat_sb_info { + struct fs_info_t fs_info; + struct bd_info_t bd_info; + + struct exfat_mount_options options; + + int s_dirt; + struct mutex s_lock; + struct nls_table *nls_disk; /* Codepage used on disk */ + struct nls_table *nls_io; /* Charset used for input and display */ + + struct inode *fat_inode; + + spinlock_t inode_hash_lock; + struct hlist_head inode_hashtable[EXFAT_HASH_SIZE]; +#ifdef CONFIG_EXFAT_KERNEL_DEBUG + long debug_flags; +#endif /* CONFIG_EXFAT_KERNEL_DEBUG */ +}; + +/* + * EXFAT file system inode data in memory + */ +struct exfat_inode_info { + struct file_id_t fid; + char *target; + /* NOTE: mmu_private is 64bits, so must hold ->i_mutex to access */ + loff_t mmu_private; /* physically allocated size */ + loff_t i_pos; /* on-disk position of directory entry or 0 */ + struct hlist_node i_hash_fat; /* hash by i_location */ + struct rw_semaphore truncate_lock; + struct inode vfs_inode; + struct rw_semaphore i_alloc_sem; /* protect bmap against truncate */ +}; + +#define EXFAT_SB(sb) ((struct exfat_sb_info *)((sb)->s_fs_info)) + +static inline struct exfat_inode_info *EXFAT_I(struct inode *inode) +{ + return container_of(inode, struct exfat_inode_info, vfs_inode); +} + +/* NLS management function */ +u16 nls_upper(struct super_block *sb, u16 a); +int nls_dosname_cmp(struct super_block *sb, u8 *a, u8 *b); +int nls_uniname_cmp(struct super_block *sb, u16 *a, u16 *b); +void nls_uniname_to_dosname(struct super_block *sb, + struct dos_name_t *p_dosname, + struct uni_name_t *p_uniname, bool *p_lossy); +void nls_dosname_to_uniname(struct super_block *sb, + struct uni_name_t *p_uniname, + struct dos_name_t *p_dosname); +void nls_uniname_to_cstring(struct super_block *sb, u8 *p_cstring, + struct uni_name_t *p_uniname); +void nls_cstring_to_uniname(struct super_block *sb, + struct uni_name_t *p_uniname, u8 *p_cstring, + bool *p_lossy); + +/* buffer cache management */ +void buf_init(struct super_block *sb); +void buf_shutdown(struct super_block *sb); +int FAT_read(struct super_block *sb, u32 loc, u32 *content); +s32 FAT_write(struct super_block *sb, u32 loc, u32 content); +u8 *FAT_getblk(struct super_block *sb, sector_t sec); +void FAT_modify(struct super_block *sb, sector_t sec); +void FAT_release_all(struct super_block *sb); +void FAT_sync(struct super_block *sb); +u8 *buf_getblk(struct super_block *sb, sector_t sec); +void buf_modify(struct super_block *sb, sector_t sec); +void buf_lock(struct super_block *sb, sector_t sec); +void buf_unlock(struct super_block *sb, sector_t sec); +void buf_release(struct super_block *sb, sector_t sec); +void buf_release_all(struct super_block *sb); +void buf_sync(struct super_block *sb); + +/* fs management functions */ +void fs_set_vol_flags(struct super_block *sb, u32 new_flag); +void fs_error(struct super_block *sb); + +/* cluster management functions */ +s32 clear_cluster(struct super_block *sb, u32 clu); +s32 fat_alloc_cluster(struct super_block *sb, s32 num_alloc, + struct chain_t *p_chain); +s32 exfat_alloc_cluster(struct super_block *sb, s32 num_alloc, + struct chain_t *p_chain); +void fat_free_cluster(struct super_block *sb, struct chain_t *p_chain, + s32 do_relse); +void exfat_free_cluster(struct super_block *sb, struct chain_t *p_chain, + s32 do_relse); +u32 find_last_cluster(struct super_block *sb, struct chain_t *p_chain); +s32 count_num_clusters(struct super_block *sb, struct chain_t *dir); +s32 fat_count_used_clusters(struct super_block *sb); +s32 exfat_count_used_clusters(struct super_block *sb); +void exfat_chain_cont_cluster(struct super_block *sb, u32 chain, s32 len); + +/* allocation bitmap management functions */ +s32 load_alloc_bitmap(struct super_block *sb); +void free_alloc_bitmap(struct super_block *sb); +s32 set_alloc_bitmap(struct super_block *sb, u32 clu); +s32 clr_alloc_bitmap(struct super_block *sb, u32 clu); +u32 test_alloc_bitmap(struct super_block *sb, u32 clu); +void sync_alloc_bitmap(struct super_block *sb); + +/* upcase table management functions */ +s32 load_upcase_table(struct super_block *sb); +void free_upcase_table(struct super_block *sb); + +/* dir entry management functions */ +u32 fat_get_entry_type(struct dentry_t *p_entry); +u32 exfat_get_entry_type(struct dentry_t *p_entry); +void fat_set_entry_type(struct dentry_t *p_entry, u32 type); +void exfat_set_entry_type(struct dentry_t *p_entry, u32 type); +u32 fat_get_entry_attr(struct dentry_t *p_entry); +u32 exfat_get_entry_attr(struct dentry_t *p_entry); +void fat_set_entry_attr(struct dentry_t *p_entry, u32 attr); +void exfat_set_entry_attr(struct dentry_t *p_entry, u32 attr); +u8 fat_get_entry_flag(struct dentry_t *p_entry); +u8 exfat_get_entry_flag(struct dentry_t *p_entry); +void fat_set_entry_flag(struct dentry_t *p_entry, u8 flag); +void exfat_set_entry_flag(struct dentry_t *p_entry, u8 flag); +u32 fat_get_entry_clu0(struct dentry_t *p_entry); +u32 exfat_get_entry_clu0(struct dentry_t *p_entry); +void fat_set_entry_clu0(struct dentry_t *p_entry, u32 start_clu); +void exfat_set_entry_clu0(struct dentry_t *p_entry, u32 start_clu); +u64 fat_get_entry_size(struct dentry_t *p_entry); +u64 exfat_get_entry_size(struct dentry_t *p_entry); +void fat_set_entry_size(struct dentry_t *p_entry, u64 size); +void exfat_set_entry_size(struct dentry_t *p_entry, u64 size); +struct timestamp_t *tm_current(struct timestamp_t *tm); +void fat_get_entry_time(struct dentry_t *p_entry, struct timestamp_t *tp, + u8 mode); +void exfat_get_entry_time(struct dentry_t *p_entry, struct timestamp_t *tp, + u8 mode); +void fat_set_entry_time(struct dentry_t *p_entry, struct timestamp_t *tp, + u8 mode); +void exfat_set_entry_time(struct dentry_t *p_entry, struct timestamp_t *tp, + u8 mode); +s32 fat_init_dir_entry(struct super_block *sb, struct chain_t *p_dir, s32 entry, + u32 type, u32 start_clu, u64 size); +s32 exfat_init_dir_entry(struct super_block *sb, struct chain_t *p_dir, + s32 entry, u32 type, u32 start_clu, u64 size); +s32 fat_init_ext_dir_entry(struct super_block *sb, struct chain_t *p_dir, + s32 entry, s32 num_entries, + struct uni_name_t *p_uniname, + struct dos_name_t *p_dosname); +s32 exfat_init_ext_dir_entry(struct super_block *sb, struct chain_t *p_dir, + s32 entry, s32 num_entries, + struct uni_name_t *p_uniname, + struct dos_name_t *p_dosname); +void init_dos_entry(struct dos_dentry_t *ep, u32 type, u32 start_clu); +void init_ext_entry(struct ext_dentry_t *ep, s32 order, u8 chksum, + u16 *uniname); +void init_file_entry(struct file_dentry_t *ep, u32 type); +void init_strm_entry(struct strm_dentry_t *ep, u8 flags, u32 start_clu, + u64 size); +void init_name_entry(struct name_dentry_t *ep, u16 *uniname); +void fat_delete_dir_entry(struct super_block *sb, struct chain_t *p_dir, + s32 entry, s32 order, s32 num_entries); +void exfat_delete_dir_entry(struct super_block *sb, struct chain_t *p_dir, + s32 entry, s32 order, s32 num_entries); + +s32 find_location(struct super_block *sb, struct chain_t *p_dir, s32 entry, + sector_t *sector, s32 *offset); +struct dentry_t *get_entry_with_sector(struct super_block *sb, sector_t sector, + s32 offset); +struct dentry_t *get_entry_in_dir(struct super_block *sb, struct chain_t *p_dir, + s32 entry, sector_t *sector); +struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb, + struct chain_t *p_dir, s32 entry, + u32 type, + struct dentry_t **file_ep); +void release_entry_set(struct entry_set_cache_t *es); +s32 write_whole_entry_set(struct super_block *sb, struct entry_set_cache_t *es); +s32 write_partial_entries_in_entry_set(struct super_block *sb, + struct entry_set_cache_t *es, + struct dentry_t *ep, u32 count); +s32 search_deleted_or_unused_entry(struct super_block *sb, + struct chain_t *p_dir, s32 num_entries); +s32 find_empty_entry(struct inode *inode, struct chain_t *p_dir, + s32 num_entries); +s32 fat_find_dir_entry(struct super_block *sb, struct chain_t *p_dir, + struct uni_name_t *p_uniname, s32 num_entries, + struct dos_name_t *p_dosname, u32 type); +s32 exfat_find_dir_entry(struct super_block *sb, struct chain_t *p_dir, + struct uni_name_t *p_uniname, s32 num_entries, + struct dos_name_t *p_dosname, u32 type); +s32 fat_count_ext_entries(struct super_block *sb, struct chain_t *p_dir, + s32 entry, struct dentry_t *p_entry); +s32 exfat_count_ext_entries(struct super_block *sb, struct chain_t *p_dir, + s32 entry, struct dentry_t *p_entry); +s32 count_dos_name_entries(struct super_block *sb, struct chain_t *p_dir, + u32 type); +void update_dir_checksum(struct super_block *sb, struct chain_t *p_dir, + s32 entry); +void update_dir_checksum_with_entry_set(struct super_block *sb, + struct entry_set_cache_t *es); +bool is_dir_empty(struct super_block *sb, struct chain_t *p_dir); + +/* name conversion functions */ +s32 get_num_entries_and_dos_name(struct super_block *sb, struct chain_t *p_dir, + struct uni_name_t *p_uniname, s32 *entries, + struct dos_name_t *p_dosname); +void get_uni_name_from_dos_entry(struct super_block *sb, + struct dos_dentry_t *ep, + struct uni_name_t *p_uniname, u8 mode); +void fat_get_uni_name_from_ext_entry(struct super_block *sb, + struct chain_t *p_dir, s32 entry, + u16 *uniname); +void exfat_get_uni_name_from_ext_entry(struct super_block *sb, + struct chain_t *p_dir, s32 entry, + u16 *uniname); +s32 extract_uni_name_from_ext_entry(struct ext_dentry_t *ep, + u16 *uniname, s32 order); +s32 extract_uni_name_from_name_entry(struct name_dentry_t *ep, + u16 *uniname, s32 order); +s32 fat_generate_dos_name(struct super_block *sb, struct chain_t *p_dir, + struct dos_name_t *p_dosname); +void fat_attach_count_to_dos_name(u8 *dosname, s32 count); +s32 fat_calc_num_entries(struct uni_name_t *p_uniname); +s32 exfat_calc_num_entries(struct uni_name_t *p_uniname); +u8 calc_checksum_1byte(void *data, s32 len, u8 chksum); +u16 calc_checksum_2byte(void *data, s32 len, u16 chksum, s32 type); +u32 calc_checksum_4byte(void *data, s32 len, u32 chksum, s32 type); + +/* name resolution functions */ +s32 resolve_path(struct inode *inode, char *path, struct chain_t *p_dir, + struct uni_name_t *p_uniname); +s32 resolve_name(u8 *name, u8 **arg); + +/* file operation functions */ +s32 fat16_mount(struct super_block *sb, struct pbr_sector_t *p_pbr); +s32 fat32_mount(struct super_block *sb, struct pbr_sector_t *p_pbr); +s32 exfat_mount(struct super_block *sb, struct pbr_sector_t *p_pbr); +s32 create_dir(struct inode *inode, struct chain_t *p_dir, + struct uni_name_t *p_uniname, struct file_id_t *fid); +s32 create_file(struct inode *inode, struct chain_t *p_dir, + struct uni_name_t *p_uniname, u8 mode, struct file_id_t *fid); +void remove_file(struct inode *inode, struct chain_t *p_dir, s32 entry); +s32 rename_file(struct inode *inode, struct chain_t *p_dir, s32 old_entry, + struct uni_name_t *p_uniname, struct file_id_t *fid); +s32 move_file(struct inode *inode, struct chain_t *p_olddir, s32 oldentry, + struct chain_t *p_newdir, struct uni_name_t *p_uniname, + struct file_id_t *fid); + +/* sector read/write functions */ +int sector_read(struct super_block *sb, sector_t sec, + struct buffer_head **bh, bool read); +int sector_write(struct super_block *sb, sector_t sec, + struct buffer_head *bh, bool sync); +int multi_sector_read(struct super_block *sb, sector_t sec, + struct buffer_head **bh, s32 num_secs, bool read); +int multi_sector_write(struct super_block *sb, sector_t sec, + struct buffer_head *bh, s32 num_secs, bool sync); + +void bdev_open(struct super_block *sb); +void bdev_close(struct super_block *sb); +int bdev_read(struct super_block *sb, sector_t secno, + struct buffer_head **bh, u32 num_secs, bool read); +int bdev_write(struct super_block *sb, sector_t secno, + struct buffer_head *bh, u32 num_secs, bool sync); +int bdev_sync(struct super_block *sb); + +extern const u8 uni_upcase[]; +#endif /* _EXFAT_H */ diff --git a/drivers/staging/exfat/exfat_blkdev.c b/drivers/staging/exfat/exfat_blkdev.c new file mode 100644 index 000000000000..f086c75e7076 --- /dev/null +++ b/drivers/staging/exfat/exfat_blkdev.c @@ -0,0 +1,136 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2012-2013 Samsung Electronics Co., Ltd. + */ + +#include <linux/blkdev.h> +#include <linux/buffer_head.h> +#include <linux/fs.h> +#include "exfat.h" + +void bdev_open(struct super_block *sb) +{ + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + if (p_bd->opened) + return; + + p_bd->sector_size = bdev_logical_block_size(sb->s_bdev); + p_bd->sector_size_bits = ilog2(p_bd->sector_size); + p_bd->sector_size_mask = p_bd->sector_size - 1; + p_bd->num_sectors = i_size_read(sb->s_bdev->bd_inode) >> + p_bd->sector_size_bits; + p_bd->opened = true; +} + +void bdev_close(struct super_block *sb) +{ + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + p_bd->opened = false; +} + +int bdev_read(struct super_block *sb, sector_t secno, struct buffer_head **bh, + u32 num_secs, bool read) +{ + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); +#ifdef CONFIG_EXFAT_KERNEL_DEBUG + struct exfat_sb_info *sbi = EXFAT_SB(sb); + long flags = sbi->debug_flags; + + if (flags & EXFAT_DEBUGFLAGS_ERROR_RW) + return FFS_MEDIAERR; +#endif /* CONFIG_EXFAT_KERNEL_DEBUG */ + + if (!p_bd->opened) + return FFS_MEDIAERR; + + if (*bh) + __brelse(*bh); + + if (read) + *bh = __bread(sb->s_bdev, secno, + num_secs << p_bd->sector_size_bits); + else + *bh = __getblk(sb->s_bdev, secno, + num_secs << p_bd->sector_size_bits); + + if (*bh) + return 0; + + WARN(!p_fs->dev_ejected, + "[EXFAT] No bh, device seems wrong or to be ejected.\n"); + + return FFS_MEDIAERR; +} + +int bdev_write(struct super_block *sb, sector_t secno, struct buffer_head *bh, + u32 num_secs, bool sync) +{ + s32 count; + struct buffer_head *bh2; + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); +#ifdef CONFIG_EXFAT_KERNEL_DEBUG + struct exfat_sb_info *sbi = EXFAT_SB(sb); + long flags = sbi->debug_flags; + + if (flags & EXFAT_DEBUGFLAGS_ERROR_RW) + return FFS_MEDIAERR; +#endif /* CONFIG_EXFAT_KERNEL_DEBUG */ + + if (!p_bd->opened) + return FFS_MEDIAERR; + + if (secno == bh->b_blocknr) { + lock_buffer(bh); + set_buffer_uptodate(bh); + mark_buffer_dirty(bh); + unlock_buffer(bh); + if (sync && (sync_dirty_buffer(bh) != 0)) + return FFS_MEDIAERR; + } else { + count = num_secs << p_bd->sector_size_bits; + + bh2 = __getblk(sb->s_bdev, secno, count); + if (!bh2) + goto no_bh; + + lock_buffer(bh2); + memcpy(bh2->b_data, bh->b_data, count); + set_buffer_uptodate(bh2); + mark_buffer_dirty(bh2); + unlock_buffer(bh2); + if (sync && (sync_dirty_buffer(bh2) != 0)) { + __brelse(bh2); + goto no_bh; + } + __brelse(bh2); + } + + return 0; + +no_bh: + WARN(!p_fs->dev_ejected, + "[EXFAT] No bh, device seems wrong or to be ejected.\n"); + + return FFS_MEDIAERR; +} + +int bdev_sync(struct super_block *sb) +{ + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); +#ifdef CONFIG_EXFAT_KERNEL_DEBUG + struct exfat_sb_info *sbi = EXFAT_SB(sb); + long flags = sbi->debug_flags; + + if (flags & EXFAT_DEBUGFLAGS_ERROR_RW) + return FFS_MEDIAERR; +#endif /* CONFIG_EXFAT_KERNEL_DEBUG */ + + if (!p_bd->opened) + return FFS_MEDIAERR; + + return sync_blockdev(sb->s_bdev); +} diff --git a/drivers/staging/exfat/exfat_cache.c b/drivers/staging/exfat/exfat_cache.c new file mode 100644 index 000000000000..1565ce65d39f --- /dev/null +++ b/drivers/staging/exfat/exfat_cache.c @@ -0,0 +1,724 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2012-2013 Samsung Electronics Co., Ltd. + */ + +#include <linux/buffer_head.h> +#include <linux/fs.h> +#include <linux/mutex.h> +#include "exfat.h" + +#define LOCKBIT 0x01 +#define DIRTYBIT 0x02 + +/* Local variables */ +static DEFINE_SEMAPHORE(f_sem); +static DEFINE_SEMAPHORE(b_sem); + +static struct buf_cache_t *FAT_cache_find(struct super_block *sb, sector_t sec) +{ + s32 off; + struct buf_cache_t *bp, *hp; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + off = (sec + + (sec >> p_fs->sectors_per_clu_bits)) & (FAT_CACHE_HASH_SIZE - 1); + + hp = &p_fs->FAT_cache_hash_list[off]; + for (bp = hp->hash_next; bp != hp; bp = bp->hash_next) { + if ((bp->drv == p_fs->drv) && (bp->sec == sec)) { + WARN(!bp->buf_bh, + "[EXFAT] FAT_cache has no bh. It will make system panic.\n"); + + touch_buffer(bp->buf_bh); + return bp; + } + } + return NULL; +} + +static void push_to_mru(struct buf_cache_t *bp, struct buf_cache_t *list) +{ + bp->next = list->next; + bp->prev = list; + list->next->prev = bp; + list->next = bp; +} + +static void push_to_lru(struct buf_cache_t *bp, struct buf_cache_t *list) +{ + bp->prev = list->prev; + bp->next = list; + list->prev->next = bp; + list->prev = bp; +} + +static void move_to_mru(struct buf_cache_t *bp, struct buf_cache_t *list) +{ + bp->prev->next = bp->next; + bp->next->prev = bp->prev; + push_to_mru(bp, list); +} + +static void move_to_lru(struct buf_cache_t *bp, struct buf_cache_t *list) +{ + bp->prev->next = bp->next; + bp->next->prev = bp->prev; + push_to_lru(bp, list); +} + +static struct buf_cache_t *FAT_cache_get(struct super_block *sb, sector_t sec) +{ + struct buf_cache_t *bp; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + bp = p_fs->FAT_cache_lru_list.prev; + + move_to_mru(bp, &p_fs->FAT_cache_lru_list); + return bp; +} + +static void FAT_cache_insert_hash(struct super_block *sb, + struct buf_cache_t *bp) +{ + s32 off; + struct buf_cache_t *hp; + struct fs_info_t *p_fs; + + p_fs = &(EXFAT_SB(sb)->fs_info); + off = (bp->sec + + (bp->sec >> p_fs->sectors_per_clu_bits)) & + (FAT_CACHE_HASH_SIZE - 1); + + hp = &p_fs->FAT_cache_hash_list[off]; + bp->hash_next = hp->hash_next; + bp->hash_prev = hp; + hp->hash_next->hash_prev = bp; + hp->hash_next = bp; +} + +static void FAT_cache_remove_hash(struct buf_cache_t *bp) +{ + (bp->hash_prev)->hash_next = bp->hash_next; + (bp->hash_next)->hash_prev = bp->hash_prev; +} + +static void buf_cache_insert_hash(struct super_block *sb, + struct buf_cache_t *bp) +{ + s32 off; + struct buf_cache_t *hp; + struct fs_info_t *p_fs; + + p_fs = &(EXFAT_SB(sb)->fs_info); + off = (bp->sec + + (bp->sec >> p_fs->sectors_per_clu_bits)) & + (BUF_CACHE_HASH_SIZE - 1); + + hp = &p_fs->buf_cache_hash_list[off]; + bp->hash_next = hp->hash_next; + bp->hash_prev = hp; + hp->hash_next->hash_prev = bp; + hp->hash_next = bp; +} + +static void buf_cache_remove_hash(struct buf_cache_t *bp) +{ + (bp->hash_prev)->hash_next = bp->hash_next; + (bp->hash_next)->hash_prev = bp->hash_prev; +} + +void buf_init(struct super_block *sb) +{ + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + int i; + + /* LRU list */ + p_fs->FAT_cache_lru_list.next = &p_fs->FAT_cache_lru_list; + p_fs->FAT_cache_lru_list.prev = &p_fs->FAT_cache_lru_list; + + for (i = 0; i < FAT_CACHE_SIZE; i++) { + p_fs->FAT_cache_array[i].drv = -1; + p_fs->FAT_cache_array[i].sec = ~0; + p_fs->FAT_cache_array[i].flag = 0; + p_fs->FAT_cache_array[i].buf_bh = NULL; + p_fs->FAT_cache_array[i].prev = NULL; + p_fs->FAT_cache_array[i].next = NULL; + push_to_mru(&p_fs->FAT_cache_array[i], + &p_fs->FAT_cache_lru_list); + } + + p_fs->buf_cache_lru_list.next = &p_fs->buf_cache_lru_list; + p_fs->buf_cache_lru_list.prev = &p_fs->buf_cache_lru_list; + + for (i = 0; i < BUF_CACHE_SIZE; i++) { + p_fs->buf_cache_array[i].drv = -1; + p_fs->buf_cache_array[i].sec = ~0; + p_fs->buf_cache_array[i].flag = 0; + p_fs->buf_cache_array[i].buf_bh = NULL; + p_fs->buf_cache_array[i].prev = NULL; + p_fs->buf_cache_array[i].next = NULL; + push_to_mru(&p_fs->buf_cache_array[i], + &p_fs->buf_cache_lru_list); + } + + /* HASH list */ + for (i = 0; i < FAT_CACHE_HASH_SIZE; i++) { + p_fs->FAT_cache_hash_list[i].drv = -1; + p_fs->FAT_cache_hash_list[i].sec = ~0; + p_fs->FAT_cache_hash_list[i].hash_next = + &p_fs->FAT_cache_hash_list[i]; + p_fs->FAT_cache_hash_list[i].hash_prev = + &p_fs->FAT_cache_hash_list[i]; + } + + for (i = 0; i < FAT_CACHE_SIZE; i++) + FAT_cache_insert_hash(sb, &p_fs->FAT_cache_array[i]); + + for (i = 0; i < BUF_CACHE_HASH_SIZE; i++) { + p_fs->buf_cache_hash_list[i].drv = -1; + p_fs->buf_cache_hash_list[i].sec = ~0; + p_fs->buf_cache_hash_list[i].hash_next = + &p_fs->buf_cache_hash_list[i]; + p_fs->buf_cache_hash_list[i].hash_prev = + &p_fs->buf_cache_hash_list[i]; + } + + for (i = 0; i < BUF_CACHE_SIZE; i++) + buf_cache_insert_hash(sb, &p_fs->buf_cache_array[i]); +} + +void buf_shutdown(struct super_block *sb) +{ +} + +static int __FAT_read(struct super_block *sb, u32 loc, u32 *content) +{ + s32 off; + u32 _content; + sector_t sec; + u8 *fat_sector, *fat_entry; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + if (p_fs->vol_type == FAT12) { + sec = p_fs->FAT1_start_sector + + ((loc + (loc >> 1)) >> p_bd->sector_size_bits); + off = (loc + (loc >> 1)) & p_bd->sector_size_mask; + + if (off == (p_bd->sector_size - 1)) { + fat_sector = FAT_getblk(sb, sec); + if (!fat_sector) + return -1; + + _content = (u32)fat_sector[off]; + + fat_sector = FAT_getblk(sb, ++sec); + if (!fat_sector) + return -1; + + _content |= (u32)fat_sector[0] << 8; + } else { + fat_sector = FAT_getblk(sb, sec); + if (!fat_sector) + return -1; + + fat_entry = &fat_sector[off]; + _content = GET16(fat_entry); + } + + if (loc & 1) + _content >>= 4; + + _content &= 0x00000FFF; + + if (_content >= CLUSTER_16(0x0FF8)) { + *content = CLUSTER_32(~0); + return 0; + } + *content = CLUSTER_32(_content); + return 0; + } else if (p_fs->vol_type == FAT16) { + sec = p_fs->FAT1_start_sector + + (loc >> (p_bd->sector_size_bits - 1)); + off = (loc << 1) & p_bd->sector_size_mask; + + fat_sector = FAT_getblk(sb, sec); + if (!fat_sector) + return -1; + + fat_entry = &fat_sector[off]; + + _content = GET16_A(fat_entry); + + _content &= 0x0000FFFF; + + if (_content >= CLUSTER_16(0xFFF8)) { + *content = CLUSTER_32(~0); + return 0; + } + *content = CLUSTER_32(_content); + return 0; + } else if (p_fs->vol_type == FAT32) { + sec = p_fs->FAT1_start_sector + + (loc >> (p_bd->sector_size_bits - 2)); + off = (loc << 2) & p_bd->sector_size_mask; + + fat_sector = FAT_getblk(sb, sec); + if (!fat_sector) + return -1; + + fat_entry = &fat_sector[off]; + + _content = GET32_A(fat_entry); + + _content &= 0x0FFFFFFF; + + if (_content >= CLUSTER_32(0x0FFFFFF8)) { + *content = CLUSTER_32(~0); + return 0; + } + *content = CLUSTER_32(_content); + return 0; + } else if (p_fs->vol_type == EXFAT) { + sec = p_fs->FAT1_start_sector + + (loc >> (p_bd->sector_size_bits - 2)); + off = (loc << 2) & p_bd->sector_size_mask; + + fat_sector = FAT_getblk(sb, sec); + if (!fat_sector) + return -1; + + fat_entry = &fat_sector[off]; + _content = GET32_A(fat_entry); + + if (_content >= CLUSTER_32(0xFFFFFFF8)) { + *content = CLUSTER_32(~0); + return 0; + } + *content = CLUSTER_32(_content); + return 0; + } + + /* Unknown volume type, throw in the towel and go home */ + *content = CLUSTER_32(~0); + return 0; +} + +/* in : sb, loc + * out: content + * returns 0 on success + * -1 on error + */ +int FAT_read(struct super_block *sb, u32 loc, u32 *content) +{ + s32 ret; + + down(&f_sem); + ret = __FAT_read(sb, loc, content); + up(&f_sem); + + return ret; +} + +static s32 __FAT_write(struct super_block *sb, u32 loc, u32 content) +{ + s32 off; + sector_t sec; + u8 *fat_sector, *fat_entry; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + if (p_fs->vol_type == FAT12) { + content &= 0x00000FFF; + + sec = p_fs->FAT1_start_sector + + ((loc + (loc >> 1)) >> p_bd->sector_size_bits); + off = (loc + (loc >> 1)) & p_bd->sector_size_mask; + + fat_sector = FAT_getblk(sb, sec); + if (!fat_sector) + return -1; + + if (loc & 1) { /* odd */ + content <<= 4; + + if (off == (p_bd->sector_size - 1)) { + fat_sector[off] = (u8)(content | + (fat_sector[off] & + 0x0F)); + FAT_modify(sb, sec); + + fat_sector = FAT_getblk(sb, ++sec); + if (!fat_sector) + return -1; + + fat_sector[0] = (u8)(content >> 8); + } else { + fat_entry = &fat_sector[off]; + content |= GET16(fat_entry) & 0x000F; + + SET16(fat_entry, content); + } + } else { /* even */ + fat_sector[off] = (u8)(content); + + if (off == (p_bd->sector_size - 1)) { + fat_sector[off] = (u8)(content); + FAT_modify(sb, sec); + + fat_sector = FAT_getblk(sb, ++sec); + if (!fat_sector) + return -1; + fat_sector[0] = (u8)((fat_sector[0] & 0xF0) | + (content >> 8)); + } else { + fat_entry = &fat_sector[off]; + content |= GET16(fat_entry) & 0xF000; + + SET16(fat_entry, content); + } + } + } + + else if (p_fs->vol_type == FAT16) { + content &= 0x0000FFFF; + + sec = p_fs->FAT1_start_sector + (loc >> + (p_bd->sector_size_bits - 1)); + off = (loc << 1) & p_bd->sector_size_mask; + + fat_sector = FAT_getblk(sb, sec); + if (!fat_sector) + return -1; + + fat_entry = &fat_sector[off]; + + SET16_A(fat_entry, content); + } else if (p_fs->vol_type == FAT32) { + content &= 0x0FFFFFFF; + + sec = p_fs->FAT1_start_sector + (loc >> + (p_bd->sector_size_bits - 2)); + off = (loc << 2) & p_bd->sector_size_mask; + + fat_sector = FAT_getblk(sb, sec); + if (!fat_sector) + return -1; + + fat_entry = &fat_sector[off]; + + content |= GET32_A(fat_entry) & 0xF0000000; + + SET32_A(fat_entry, content); + } else { /* p_fs->vol_type == EXFAT */ + sec = p_fs->FAT1_start_sector + (loc >> + (p_bd->sector_size_bits - 2)); + off = (loc << 2) & p_bd->sector_size_mask; + + fat_sector = FAT_getblk(sb, sec); + if (!fat_sector) + return -1; + + fat_entry = &fat_sector[off]; + + SET32_A(fat_entry, content); + } + + FAT_modify(sb, sec); + return 0; +} + +int FAT_write(struct super_block *sb, u32 loc, u32 content) +{ + s32 ret; + + down(&f_sem); + ret = __FAT_write(sb, loc, content); + up(&f_sem); + + return ret; +} + +u8 *FAT_getblk(struct super_block *sb, sector_t sec) +{ + struct buf_cache_t *bp; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + bp = FAT_cache_find(sb, sec); + if (bp) { + move_to_mru(bp, &p_fs->FAT_cache_lru_list); + return bp->buf_bh->b_data; + } + + bp = FAT_cache_get(sb, sec); + + FAT_cache_remove_hash(bp); + + bp->drv = p_fs->drv; + bp->sec = sec; + bp->flag = 0; + + FAT_cache_insert_hash(sb, bp); + + if (sector_read(sb, sec, &bp->buf_bh, 1) != FFS_SUCCESS) { + FAT_cache_remove_hash(bp); + bp->drv = -1; + bp->sec = ~0; + bp->flag = 0; + bp->buf_bh = NULL; + + move_to_lru(bp, &p_fs->FAT_cache_lru_list); + return NULL; + } + + return bp->buf_bh->b_data; +} + +void FAT_modify(struct super_block *sb, sector_t sec) +{ + struct buf_cache_t *bp; + + bp = FAT_cache_find(sb, sec); + if (bp) + sector_write(sb, sec, bp->buf_bh, 0); +} + +void FAT_release_all(struct super_block *sb) +{ + struct buf_cache_t *bp; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + down(&f_sem); + + bp = p_fs->FAT_cache_lru_list.next; + while (bp != &p_fs->FAT_cache_lru_list) { + if (bp->drv == p_fs->drv) { + bp->drv = -1; + bp->sec = ~0; + bp->flag = 0; + + if (bp->buf_bh) { + __brelse(bp->buf_bh); + bp->buf_bh = NULL; + } + } + bp = bp->next; + } + + up(&f_sem); +} + +void FAT_sync(struct super_block *sb) +{ + struct buf_cache_t *bp; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + down(&f_sem); + + bp = p_fs->FAT_cache_lru_list.next; + while (bp != &p_fs->FAT_cache_lru_list) { + if ((bp->drv == p_fs->drv) && (bp->flag & DIRTYBIT)) { + sync_dirty_buffer(bp->buf_bh); + bp->flag &= ~(DIRTYBIT); + } + bp = bp->next; + } + + up(&f_sem); +} + +static struct buf_cache_t *buf_cache_find(struct super_block *sb, sector_t sec) +{ + s32 off; + struct buf_cache_t *bp, *hp; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + off = (sec + (sec >> p_fs->sectors_per_clu_bits)) & + (BUF_CACHE_HASH_SIZE - 1); + + hp = &p_fs->buf_cache_hash_list[off]; + for (bp = hp->hash_next; bp != hp; bp = bp->hash_next) { + if ((bp->drv == p_fs->drv) && (bp->sec == sec)) { + touch_buffer(bp->buf_bh); + return bp; + } + } + return NULL; +} + +static struct buf_cache_t *buf_cache_get(struct super_block *sb, sector_t sec) +{ + struct buf_cache_t *bp; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + bp = p_fs->buf_cache_lru_list.prev; + while (bp->flag & LOCKBIT) + bp = bp->prev; + + move_to_mru(bp, &p_fs->buf_cache_lru_list); + return bp; +} + +static u8 *__buf_getblk(struct super_block *sb, sector_t sec) +{ + struct buf_cache_t *bp; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + bp = buf_cache_find(sb, sec); + if (bp) { + move_to_mru(bp, &p_fs->buf_cache_lru_list); + return bp->buf_bh->b_data; + } + + bp = buf_cache_get(sb, sec); + + buf_cache_remove_hash(bp); + + bp->drv = p_fs->drv; + bp->sec = sec; + bp->flag = 0; + + buf_cache_insert_hash(sb, bp); + + if (sector_read(sb, sec, &bp->buf_bh, 1) != FFS_SUCCESS) { + buf_cache_remove_hash(bp); + bp->drv = -1; + bp->sec = ~0; + bp->flag = 0; + bp->buf_bh = NULL; + + move_to_lru(bp, &p_fs->buf_cache_lru_list); + return NULL; + } + + return bp->buf_bh->b_data; +} + +u8 *buf_getblk(struct super_block *sb, sector_t sec) +{ + u8 *buf; + + down(&b_sem); + buf = __buf_getblk(sb, sec); + up(&b_sem); + + return buf; +} + +void buf_modify(struct super_block *sb, sector_t sec) +{ + struct buf_cache_t *bp; + + down(&b_sem); + + bp = buf_cache_find(sb, sec); + if (likely(bp)) + sector_write(sb, sec, bp->buf_bh, 0); + + WARN(!bp, "[EXFAT] failed to find buffer_cache(sector:%llu).\n", + (unsigned long long)sec); + + up(&b_sem); +} + +void buf_lock(struct super_block *sb, sector_t sec) +{ + struct buf_cache_t *bp; + + down(&b_sem); + + bp = buf_cache_find(sb, sec); + if (likely(bp)) + bp->flag |= LOCKBIT; + + WARN(!bp, "[EXFAT] failed to find buffer_cache(sector:%llu).\n", + (unsigned long long)sec); + + up(&b_sem); +} + +void buf_unlock(struct super_block *sb, sector_t sec) +{ + struct buf_cache_t *bp; + + down(&b_sem); + + bp = buf_cache_find(sb, sec); + if (likely(bp)) + bp->flag &= ~(LOCKBIT); + + WARN(!bp, "[EXFAT] failed to find buffer_cache(sector:%llu).\n", + (unsigned long long)sec); + + up(&b_sem); +} + +void buf_release(struct super_block *sb, sector_t sec) +{ + struct buf_cache_t *bp; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + down(&b_sem); + + bp = buf_cache_find(sb, sec); + if (likely(bp)) { + bp->drv = -1; + bp->sec = ~0; + bp->flag = 0; + + if (bp->buf_bh) { + __brelse(bp->buf_bh); + bp->buf_bh = NULL; + } + + move_to_lru(bp, &p_fs->buf_cache_lru_list); + } + + up(&b_sem); +} + +void buf_release_all(struct super_block *sb) +{ + struct buf_cache_t *bp; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + down(&b_sem); + + bp = p_fs->buf_cache_lru_list.next; + while (bp != &p_fs->buf_cache_lru_list) { + if (bp->drv == p_fs->drv) { + bp->drv = -1; + bp->sec = ~0; + bp->flag = 0; + + if (bp->buf_bh) { + __brelse(bp->buf_bh); + bp->buf_bh = NULL; + } + } + bp = bp->next; + } + + up(&b_sem); +} + +void buf_sync(struct super_block *sb) +{ + struct buf_cache_t *bp; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + down(&b_sem); + + bp = p_fs->buf_cache_lru_list.next; + while (bp != &p_fs->buf_cache_lru_list) { + if ((bp->drv == p_fs->drv) && (bp->flag & DIRTYBIT)) { + sync_dirty_buffer(bp->buf_bh); + bp->flag &= ~(DIRTYBIT); + } + bp = bp->next; + } + + up(&b_sem); +} diff --git a/drivers/staging/exfat/exfat_core.c b/drivers/staging/exfat/exfat_core.c new file mode 100644 index 000000000000..da8c58149c35 --- /dev/null +++ b/drivers/staging/exfat/exfat_core.c @@ -0,0 +1,3703 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2012-2013 Samsung Electronics Co., Ltd. + */ + +#include <linux/types.h> +#include <linux/buffer_head.h> +#include <linux/fs.h> +#include <linux/mutex.h> +#include <linux/blkdev.h> +#include <linux/slab.h> +#include "exfat.h" + +static void __set_sb_dirty(struct super_block *sb) +{ + struct exfat_sb_info *sbi = EXFAT_SB(sb); + + sbi->s_dirt = 1; +} + +static u8 name_buf[MAX_PATH_LENGTH * MAX_CHARSET_SIZE]; + +static char *reserved_names[] = { + "AUX ", "CON ", "NUL ", "PRN ", + "COM1 ", "COM2 ", "COM3 ", "COM4 ", + "COM5 ", "COM6 ", "COM7 ", "COM8 ", "COM9 ", + "LPT1 ", "LPT2 ", "LPT3 ", "LPT4 ", + "LPT5 ", "LPT6 ", "LPT7 ", "LPT8 ", "LPT9 ", + NULL +}; + +static u8 free_bit[] = { + 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 4, 0, 1, 0, 2, /* 0 ~ 19 */ + 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 5, 0, 1, 0, 2, 0, 1, 0, 3, /* 20 ~ 39 */ + 0, 1, 0, 2, 0, 1, 0, 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, /* 40 ~ 59 */ + 0, 1, 0, 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 4, /* 60 ~ 79 */ + 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 5, 0, 1, 0, 2, /* 80 ~ 99 */ + 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 4, 0, 1, 0, 2, 0, 1, 0, 3, /* 100 ~ 119 */ + 0, 1, 0, 2, 0, 1, 0, 7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, /* 120 ~ 139 */ + 0, 1, 0, 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 5, /* 140 ~ 159 */ + 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 4, 0, 1, 0, 2, /* 160 ~ 179 */ + 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 6, 0, 1, 0, 2, 0, 1, 0, 3, /* 180 ~ 199 */ + 0, 1, 0, 2, 0, 1, 0, 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, /* 200 ~ 219 */ + 0, 1, 0, 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 4, /* 220 ~ 239 */ + 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0 /* 240 ~ 254 */ +}; + +static u8 used_bit[] = { + 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, 1, 2, 2, 3, /* 0 ~ 19 */ + 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 1, 2, 2, 3, 2, 3, 3, 4, /* 20 ~ 39 */ + 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, /* 40 ~ 59 */ + 4, 5, 5, 6, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, /* 60 ~ 79 */ + 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 2, 3, 3, 4, /* 80 ~ 99 */ + 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, /* 100 ~ 119 */ + 4, 5, 5, 6, 5, 6, 6, 7, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, /* 120 ~ 139 */ + 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, /* 140 ~ 159 */ + 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, /* 160 ~ 179 */ + 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 2, 3, 3, 4, 3, 4, 4, 5, /* 180 ~ 199 */ + 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, /* 200 ~ 219 */ + 5, 6, 6, 7, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, /* 220 ~ 239 */ + 4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8 /* 240 ~ 255 */ +}; + +#define BITMAP_LOC(v) ((v) >> 3) +#define BITMAP_SHIFT(v) ((v) & 0x07) + +static inline s32 exfat_bitmap_test(u8 *bitmap, int i) +{ + u8 data; + + data = bitmap[BITMAP_LOC(i)]; + if ((data >> BITMAP_SHIFT(i)) & 0x01) + return 1; + return 0; +} + +static inline void exfat_bitmap_set(u8 *bitmap, int i) +{ + bitmap[BITMAP_LOC(i)] |= (0x01 << BITMAP_SHIFT(i)); +} + +static inline void exfat_bitmap_clear(u8 *bitmap, int i) +{ + bitmap[BITMAP_LOC(i)] &= ~(0x01 << BITMAP_SHIFT(i)); +} + +/* + * File System Management Functions + */ + +void fs_set_vol_flags(struct super_block *sb, u32 new_flag) +{ + struct pbr_sector_t *p_pbr; + struct bpbex_t *p_bpb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if (p_fs->vol_flag == new_flag) + return; + + p_fs->vol_flag = new_flag; + + if (p_fs->vol_type == EXFAT) { + if (p_fs->pbr_bh == NULL) { + if (sector_read(sb, p_fs->PBR_sector, + &p_fs->pbr_bh, 1) != FFS_SUCCESS) + return; + } + + p_pbr = (struct pbr_sector_t *)p_fs->pbr_bh->b_data; + p_bpb = (struct bpbex_t *)p_pbr->bpb; + SET16(p_bpb->vol_flags, (u16)new_flag); + + /* XXX duyoung + * what can we do here? (cuz fs_set_vol_flags() is void) + */ + if ((new_flag == VOL_DIRTY) && (!buffer_dirty(p_fs->pbr_bh))) + sector_write(sb, p_fs->PBR_sector, p_fs->pbr_bh, 1); + else + sector_write(sb, p_fs->PBR_sector, p_fs->pbr_bh, 0); + } +} + +void fs_error(struct super_block *sb) +{ + struct exfat_mount_options *opts = &EXFAT_SB(sb)->options; + + if (opts->errors == EXFAT_ERRORS_PANIC) { + panic("[EXFAT] Filesystem panic from previous error\n"); + } else if ((opts->errors == EXFAT_ERRORS_RO) && !sb_rdonly(sb)) { + sb->s_flags |= SB_RDONLY; + pr_err("[EXFAT] Filesystem has been set read-only\n"); + } +} + +/* + * Cluster Management Functions + */ + +s32 clear_cluster(struct super_block *sb, u32 clu) +{ + sector_t s, n; + s32 ret = FFS_SUCCESS; + struct buffer_head *tmp_bh = NULL; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + if (clu == CLUSTER_32(0)) { /* FAT16 root_dir */ + s = p_fs->root_start_sector; + n = p_fs->data_start_sector; + } else { + s = START_SECTOR(clu); + n = s + p_fs->sectors_per_clu; + } + + for (; s < n; s++) { + ret = sector_read(sb, s, &tmp_bh, 0); + if (ret != FFS_SUCCESS) + return ret; + + memset((char *)tmp_bh->b_data, 0x0, p_bd->sector_size); + ret = sector_write(sb, s, tmp_bh, 0); + if (ret != FFS_SUCCESS) + break; + } + + brelse(tmp_bh); + return ret; +} + +s32 fat_alloc_cluster(struct super_block *sb, s32 num_alloc, + struct chain_t *p_chain) +{ + int i, num_clusters = 0; + u32 new_clu, last_clu = CLUSTER_32(~0), read_clu; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + new_clu = p_chain->dir; + if (new_clu == CLUSTER_32(~0)) + new_clu = p_fs->clu_srch_ptr; + else if (new_clu >= p_fs->num_clusters) + new_clu = 2; + + __set_sb_dirty(sb); + + p_chain->dir = CLUSTER_32(~0); + + for (i = 2; i < p_fs->num_clusters; i++) { + if (FAT_read(sb, new_clu, &read_clu) != 0) + return -1; + + if (read_clu == CLUSTER_32(0)) { + if (FAT_write(sb, new_clu, CLUSTER_32(~0)) < 0) + return -1; + num_clusters++; + + if (p_chain->dir == CLUSTER_32(~0)) { + p_chain->dir = new_clu; + } else { + if (FAT_write(sb, last_clu, new_clu) < 0) + return -1; + } + + last_clu = new_clu; + + if ((--num_alloc) == 0) { + p_fs->clu_srch_ptr = new_clu; + if (p_fs->used_clusters != (u32) ~0) + p_fs->used_clusters += num_clusters; + + return num_clusters; + } + } + if ((++new_clu) >= p_fs->num_clusters) + new_clu = 2; + } + + p_fs->clu_srch_ptr = new_clu; + if (p_fs->used_clusters != (u32) ~0) + p_fs->used_clusters += num_clusters; + + return num_clusters; +} + +s32 exfat_alloc_cluster(struct super_block *sb, s32 num_alloc, + struct chain_t *p_chain) +{ + s32 num_clusters = 0; + u32 hint_clu, new_clu, last_clu = CLUSTER_32(~0); + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + hint_clu = p_chain->dir; + if (hint_clu == CLUSTER_32(~0)) { + hint_clu = test_alloc_bitmap(sb, p_fs->clu_srch_ptr-2); + if (hint_clu == CLUSTER_32(~0)) + return 0; + } else if (hint_clu >= p_fs->num_clusters) { + hint_clu = 2; + p_chain->flags = 0x01; + } + + __set_sb_dirty(sb); + + p_chain->dir = CLUSTER_32(~0); + + while ((new_clu = test_alloc_bitmap(sb, hint_clu-2)) != CLUSTER_32(~0)) { + if (new_clu != hint_clu) { + if (p_chain->flags == 0x03) { + exfat_chain_cont_cluster(sb, p_chain->dir, + num_clusters); + p_chain->flags = 0x01; + } + } + + if (set_alloc_bitmap(sb, new_clu-2) != FFS_SUCCESS) + return -1; + + num_clusters++; + + if (p_chain->flags == 0x01) { + if (FAT_write(sb, new_clu, CLUSTER_32(~0)) < 0) + return -1; + } + + if (p_chain->dir == CLUSTER_32(~0)) { + p_chain->dir = new_clu; + } else { + if (p_chain->flags == 0x01) { + if (FAT_write(sb, last_clu, new_clu) < 0) + return -1; + } + } + last_clu = new_clu; + + if ((--num_alloc) == 0) { + p_fs->clu_srch_ptr = hint_clu; + if (p_fs->used_clusters != (u32) ~0) + p_fs->used_clusters += num_clusters; + + p_chain->size += num_clusters; + return num_clusters; + } + + hint_clu = new_clu + 1; + if (hint_clu >= p_fs->num_clusters) { + hint_clu = 2; + + if (p_chain->flags == 0x03) { + exfat_chain_cont_cluster(sb, p_chain->dir, + num_clusters); + p_chain->flags = 0x01; + } + } + } + + p_fs->clu_srch_ptr = hint_clu; + if (p_fs->used_clusters != (u32) ~0) + p_fs->used_clusters += num_clusters; + + p_chain->size += num_clusters; + return num_clusters; +} + +void fat_free_cluster(struct super_block *sb, struct chain_t *p_chain, + s32 do_relse) +{ + s32 num_clusters = 0; + u32 clu, prev; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + int i; + sector_t sector; + + if ((p_chain->dir == CLUSTER_32(0)) || (p_chain->dir == CLUSTER_32(~0))) + return; + __set_sb_dirty(sb); + clu = p_chain->dir; + + if (p_chain->size <= 0) + return; + + do { + if (p_fs->dev_ejected) + break; + + if (do_relse) { + sector = START_SECTOR(clu); + for (i = 0; i < p_fs->sectors_per_clu; i++) + buf_release(sb, sector+i); + } + + prev = clu; + if (FAT_read(sb, clu, &clu) == -1) + break; + + if (FAT_write(sb, prev, CLUSTER_32(0)) < 0) + break; + num_clusters++; + + } while (clu != CLUSTER_32(~0)); + + if (p_fs->used_clusters != (u32) ~0) + p_fs->used_clusters -= num_clusters; +} + +void exfat_free_cluster(struct super_block *sb, struct chain_t *p_chain, + s32 do_relse) +{ + s32 num_clusters = 0; + u32 clu; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + int i; + sector_t sector; + + if ((p_chain->dir == CLUSTER_32(0)) || (p_chain->dir == CLUSTER_32(~0))) + return; + + if (p_chain->size <= 0) { + pr_err("[EXFAT] free_cluster : skip free-req clu:%u, because of zero-size truncation\n", + p_chain->dir); + return; + } + + __set_sb_dirty(sb); + clu = p_chain->dir; + + if (p_chain->flags == 0x03) { + do { + if (do_relse) { + sector = START_SECTOR(clu); + for (i = 0; i < p_fs->sectors_per_clu; i++) + buf_release(sb, sector+i); + } + + if (clr_alloc_bitmap(sb, clu-2) != FFS_SUCCESS) + break; + clu++; + + num_clusters++; + } while (num_clusters < p_chain->size); + } else { + do { + if (p_fs->dev_ejected) + break; + + if (do_relse) { + sector = START_SECTOR(clu); + for (i = 0; i < p_fs->sectors_per_clu; i++) + buf_release(sb, sector+i); + } + + if (clr_alloc_bitmap(sb, clu-2) != FFS_SUCCESS) + break; + + if (FAT_read(sb, clu, &clu) == -1) + break; + num_clusters++; + } while ((clu != CLUSTER_32(0)) && (clu != CLUSTER_32(~0))); + } + + if (p_fs->used_clusters != (u32) ~0) + p_fs->used_clusters -= num_clusters; +} + +u32 find_last_cluster(struct super_block *sb, struct chain_t *p_chain) +{ + u32 clu, next; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + clu = p_chain->dir; + + if (p_chain->flags == 0x03) { + clu += p_chain->size - 1; + } else { + while ((FAT_read(sb, clu, &next) == 0) && + (next != CLUSTER_32(~0))) { + if (p_fs->dev_ejected) + break; + clu = next; + } + } + + return clu; +} + +s32 count_num_clusters(struct super_block *sb, struct chain_t *p_chain) +{ + int i, count = 0; + u32 clu; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if ((p_chain->dir == CLUSTER_32(0)) || (p_chain->dir == CLUSTER_32(~0))) + return 0; + + clu = p_chain->dir; + + if (p_chain->flags == 0x03) { + count = p_chain->size; + } else { + for (i = 2; i < p_fs->num_clusters; i++) { + count++; + if (FAT_read(sb, clu, &clu) != 0) + return 0; + if (clu == CLUSTER_32(~0)) + break; + } + } + + return count; +} + +s32 fat_count_used_clusters(struct super_block *sb) +{ + int i, count = 0; + u32 clu; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + for (i = 2; i < p_fs->num_clusters; i++) { + if (FAT_read(sb, i, &clu) != 0) + break; + if (clu != CLUSTER_32(0)) + count++; + } + + return count; +} + +s32 exfat_count_used_clusters(struct super_block *sb) +{ + int i, map_i, map_b, count = 0; + u8 k; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + map_i = map_b = 0; + + for (i = 2; i < p_fs->num_clusters; i += 8) { + k = *(((u8 *) p_fs->vol_amap[map_i]->b_data) + map_b); + count += used_bit[k]; + + if ((++map_b) >= p_bd->sector_size) { + map_i++; + map_b = 0; + } + } + + return count; +} + +void exfat_chain_cont_cluster(struct super_block *sb, u32 chain, s32 len) +{ + if (len == 0) + return; + + while (len > 1) { + if (FAT_write(sb, chain, chain+1) < 0) + break; + chain++; + len--; + } + FAT_write(sb, chain, CLUSTER_32(~0)); +} + +/* + * Allocation Bitmap Management Functions + */ + +s32 load_alloc_bitmap(struct super_block *sb) +{ + int i, j, ret; + u32 map_size; + u32 type; + sector_t sector; + struct chain_t clu; + struct bmap_dentry_t *ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + clu.dir = p_fs->root_dir; + clu.flags = 0x01; + + while (clu.dir != CLUSTER_32(~0)) { + if (p_fs->dev_ejected) + break; + + for (i = 0; i < p_fs->dentries_per_clu; i++) { + ep = (struct bmap_dentry_t *)get_entry_in_dir(sb, &clu, + i, NULL); + if (!ep) + return FFS_MEDIAERR; + + type = p_fs->fs_func->get_entry_type((struct dentry_t *)ep); + + if (type == TYPE_UNUSED) + break; + if (type != TYPE_BITMAP) + continue; + + if (ep->flags == 0x0) { + p_fs->map_clu = GET32_A(ep->start_clu); + map_size = (u32) GET64_A(ep->size); + + p_fs->map_sectors = ((map_size-1) >> p_bd->sector_size_bits) + 1; + + p_fs->vol_amap = kmalloc_array(p_fs->map_sectors, + sizeof(struct buffer_head *), + GFP_KERNEL); + if (p_fs->vol_amap == NULL) + return FFS_MEMORYERR; + + sector = START_SECTOR(p_fs->map_clu); + + for (j = 0; j < p_fs->map_sectors; j++) { + p_fs->vol_amap[j] = NULL; + ret = sector_read(sb, sector+j, &(p_fs->vol_amap[j]), 1); + if (ret != FFS_SUCCESS) { + /* release all buffers and free vol_amap */ + i = 0; + while (i < j) + brelse(p_fs->vol_amap[i++]); + + kfree(p_fs->vol_amap); + p_fs->vol_amap = NULL; + return ret; + } + } + + p_fs->pbr_bh = NULL; + return FFS_SUCCESS; + } + } + + if (FAT_read(sb, clu.dir, &clu.dir) != 0) + return FFS_MEDIAERR; + } + + return FFS_FORMATERR; +} + +void free_alloc_bitmap(struct super_block *sb) +{ + int i; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + brelse(p_fs->pbr_bh); + + for (i = 0; i < p_fs->map_sectors; i++) + __brelse(p_fs->vol_amap[i]); + + kfree(p_fs->vol_amap); + p_fs->vol_amap = NULL; +} + +s32 set_alloc_bitmap(struct super_block *sb, u32 clu) +{ + int i, b; + sector_t sector; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + i = clu >> (p_bd->sector_size_bits + 3); + b = clu & ((p_bd->sector_size << 3) - 1); + + sector = START_SECTOR(p_fs->map_clu) + i; + + exfat_bitmap_set((u8 *) p_fs->vol_amap[i]->b_data, b); + + return sector_write(sb, sector, p_fs->vol_amap[i], 0); +} + +s32 clr_alloc_bitmap(struct super_block *sb, u32 clu) +{ + int i, b; + sector_t sector; +#ifdef CONFIG_EXFAT_DISCARD + struct exfat_sb_info *sbi = EXFAT_SB(sb); + struct exfat_mount_options *opts = &sbi->options; + int ret; +#endif /* CONFIG_EXFAT_DISCARD */ + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + i = clu >> (p_bd->sector_size_bits + 3); + b = clu & ((p_bd->sector_size << 3) - 1); + + sector = START_SECTOR(p_fs->map_clu) + i; + + exfat_bitmap_clear((u8 *) p_fs->vol_amap[i]->b_data, b); + + return sector_write(sb, sector, p_fs->vol_amap[i], 0); + +#ifdef CONFIG_EXFAT_DISCARD + if (opts->discard) { + ret = sb_issue_discard(sb, START_SECTOR(clu), + (1 << p_fs->sectors_per_clu_bits), + GFP_NOFS, 0); + if (ret == -EOPNOTSUPP) { + pr_warn("discard not supported by device, disabling"); + opts->discard = 0; + } + } +#endif /* CONFIG_EXFAT_DISCARD */ +} + +u32 test_alloc_bitmap(struct super_block *sb, u32 clu) +{ + int i, map_i, map_b; + u32 clu_base, clu_free; + u8 k, clu_mask; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + clu_base = (clu & ~(0x7)) + 2; + clu_mask = (1 << (clu - clu_base + 2)) - 1; + + map_i = clu >> (p_bd->sector_size_bits + 3); + map_b = (clu >> 3) & p_bd->sector_size_mask; + + for (i = 2; i < p_fs->num_clusters; i += 8) { + k = *(((u8 *) p_fs->vol_amap[map_i]->b_data) + map_b); + if (clu_mask > 0) { + k |= clu_mask; + clu_mask = 0; + } + if (k < 0xFF) { + clu_free = clu_base + free_bit[k]; + if (clu_free < p_fs->num_clusters) + return clu_free; + } + clu_base += 8; + + if (((++map_b) >= p_bd->sector_size) || + (clu_base >= p_fs->num_clusters)) { + if ((++map_i) >= p_fs->map_sectors) { + clu_base = 2; + map_i = 0; + } + map_b = 0; + } + } + + return CLUSTER_32(~0); +} + +void sync_alloc_bitmap(struct super_block *sb) +{ + int i; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if (p_fs->vol_amap == NULL) + return; + + for (i = 0; i < p_fs->map_sectors; i++) + sync_dirty_buffer(p_fs->vol_amap[i]); +} + +/* + * Upcase table Management Functions + */ +static s32 __load_upcase_table(struct super_block *sb, sector_t sector, + u32 num_sectors, u32 utbl_checksum) +{ + int i, ret = FFS_ERROR; + u32 j; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + struct buffer_head *tmp_bh = NULL; + sector_t end_sector = num_sectors + sector; + + bool skip = false; + u32 index = 0; + u16 uni = 0; + u16 **upcase_table; + + u32 checksum = 0; + + upcase_table = p_fs->vol_utbl = kmalloc(UTBL_COL_COUNT * sizeof(u16 *), + GFP_KERNEL); + if (upcase_table == NULL) + return FFS_MEMORYERR; + memset(upcase_table, 0, UTBL_COL_COUNT * sizeof(u16 *)); + + while (sector < end_sector) { + ret = sector_read(sb, sector, &tmp_bh, 1); + if (ret != FFS_SUCCESS) { + pr_debug("sector read (0x%llX)fail\n", + (unsigned long long)sector); + goto error; + } + sector++; + + for (i = 0; i < p_bd->sector_size && index <= 0xFFFF; i += 2) { + uni = GET16(((u8 *) tmp_bh->b_data)+i); + + checksum = ((checksum & 1) ? 0x80000000 : 0) + + (checksum >> 1) + *(((u8 *)tmp_bh->b_data) + + i); + checksum = ((checksum & 1) ? 0x80000000 : 0) + + (checksum >> 1) + *(((u8 *)tmp_bh->b_data) + + (i + 1)); + + if (skip) { + pr_debug("skip from 0x%X ", index); + index += uni; + pr_debug("to 0x%X (amount of 0x%X)\n", + index, uni); + skip = false; + } else if (uni == index) { + index++; + } else if (uni == 0xFFFF) { + skip = true; + } else { /* uni != index , uni != 0xFFFF */ + u16 col_index = get_col_index(index); + + if (upcase_table[col_index] == NULL) { + pr_debug("alloc = 0x%X\n", col_index); + upcase_table[col_index] = kmalloc_array(UTBL_ROW_COUNT, + sizeof(u16), GFP_KERNEL); + if (upcase_table[col_index] == NULL) { + ret = FFS_MEMORYERR; + goto error; + } + + for (j = 0; j < UTBL_ROW_COUNT; j++) + upcase_table[col_index][j] = (col_index << LOW_INDEX_BIT) | j; + } + + upcase_table[col_index][get_row_index(index)] = uni; + index++; + } + } + } + if (index >= 0xFFFF && utbl_checksum == checksum) { + if (tmp_bh) + brelse(tmp_bh); + return FFS_SUCCESS; + } + ret = FFS_ERROR; +error: + if (tmp_bh) + brelse(tmp_bh); + free_upcase_table(sb); + return ret; +} + +static s32 __load_default_upcase_table(struct super_block *sb) +{ + int i, ret = FFS_ERROR; + u32 j; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + bool skip = false; + u32 index = 0; + u16 uni = 0; + u16 **upcase_table; + + upcase_table = p_fs->vol_utbl = kmalloc(UTBL_COL_COUNT * sizeof(u16 *), + GFP_KERNEL); + if (upcase_table == NULL) + return FFS_MEMORYERR; + memset(upcase_table, 0, UTBL_COL_COUNT * sizeof(u16 *)); + + for (i = 0; index <= 0xFFFF && i < NUM_UPCASE*2; i += 2) { + uni = GET16(uni_upcase + i); + if (skip) { + pr_debug("skip from 0x%X ", index); + index += uni; + pr_debug("to 0x%X (amount of 0x%X)\n", index, uni); + skip = false; + } else if (uni == index) { + index++; + } else if (uni == 0xFFFF) { + skip = true; + } else { /* uni != index , uni != 0xFFFF */ + u16 col_index = get_col_index(index); + + if (upcase_table[col_index] == NULL) { + pr_debug("alloc = 0x%X\n", col_index); + upcase_table[col_index] = kmalloc_array(UTBL_ROW_COUNT, + sizeof(u16), + GFP_KERNEL); + if (upcase_table[col_index] == NULL) { + ret = FFS_MEMORYERR; + goto error; + } + + for (j = 0; j < UTBL_ROW_COUNT; j++) + upcase_table[col_index][j] = (col_index << LOW_INDEX_BIT) | j; + } + + upcase_table[col_index][get_row_index(index)] = uni; + index++; + } + } + + if (index >= 0xFFFF) + return FFS_SUCCESS; + +error: + /* FATAL error: default upcase table has error */ + free_upcase_table(sb); + return ret; +} + +s32 load_upcase_table(struct super_block *sb) +{ + int i; + u32 tbl_clu, tbl_size; + sector_t sector; + u32 type, num_sectors; + struct chain_t clu; + struct case_dentry_t *ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + clu.dir = p_fs->root_dir; + clu.flags = 0x01; + + if (p_fs->dev_ejected) + return FFS_MEDIAERR; + + while (clu.dir != CLUSTER_32(~0)) { + for (i = 0; i < p_fs->dentries_per_clu; i++) { + ep = (struct case_dentry_t *)get_entry_in_dir(sb, &clu, + i, NULL); + if (!ep) + return FFS_MEDIAERR; + + type = p_fs->fs_func->get_entry_type((struct dentry_t *)ep); + + if (type == TYPE_UNUSED) + break; + if (type != TYPE_UPCASE) + continue; + + tbl_clu = GET32_A(ep->start_clu); + tbl_size = (u32) GET64_A(ep->size); + + sector = START_SECTOR(tbl_clu); + num_sectors = ((tbl_size-1) >> p_bd->sector_size_bits) + 1; + if (__load_upcase_table(sb, sector, num_sectors, + GET32_A(ep->checksum)) != FFS_SUCCESS) + break; + return FFS_SUCCESS; + } + if (FAT_read(sb, clu.dir, &clu.dir) != 0) + return FFS_MEDIAERR; + } + /* load default upcase table */ + return __load_default_upcase_table(sb); +} + +void free_upcase_table(struct super_block *sb) +{ + u32 i; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + u16 **upcase_table; + + upcase_table = p_fs->vol_utbl; + for (i = 0; i < UTBL_COL_COUNT; i++) + kfree(upcase_table[i]); + + kfree(p_fs->vol_utbl); + p_fs->vol_utbl = NULL; +} + +/* + * Directory Entry Management Functions + */ + +u32 fat_get_entry_type(struct dentry_t *p_entry) +{ + struct dos_dentry_t *ep = (struct dos_dentry_t *) p_entry; + + if (*(ep->name) == 0x0) + return TYPE_UNUSED; + + else if (*(ep->name) == 0xE5) + return TYPE_DELETED; + + else if (ep->attr == ATTR_EXTEND) + return TYPE_EXTEND; + + else if ((ep->attr & (ATTR_SUBDIR|ATTR_VOLUME)) == ATTR_VOLUME) + return TYPE_VOLUME; + + else if ((ep->attr & (ATTR_SUBDIR|ATTR_VOLUME)) == ATTR_SUBDIR) + return TYPE_DIR; + + return TYPE_FILE; +} + +u32 exfat_get_entry_type(struct dentry_t *p_entry) +{ + struct file_dentry_t *ep = (struct file_dentry_t *) p_entry; + + if (ep->type == 0x0) { + return TYPE_UNUSED; + } else if (ep->type < 0x80) { + return TYPE_DELETED; + } else if (ep->type == 0x80) { + return TYPE_INVALID; + } else if (ep->type < 0xA0) { + if (ep->type == 0x81) { + return TYPE_BITMAP; + } else if (ep->type == 0x82) { + return TYPE_UPCASE; + } else if (ep->type == 0x83) { + return TYPE_VOLUME; + } else if (ep->type == 0x85) { + if (GET16_A(ep->attr) & ATTR_SUBDIR) + return TYPE_DIR; + else + return TYPE_FILE; + } + return TYPE_CRITICAL_PRI; + } else if (ep->type < 0xC0) { + if (ep->type == 0xA0) + return TYPE_GUID; + else if (ep->type == 0xA1) + return TYPE_PADDING; + else if (ep->type == 0xA2) + return TYPE_ACLTAB; + return TYPE_BENIGN_PRI; + } else if (ep->type < 0xE0) { + if (ep->type == 0xC0) + return TYPE_STREAM; + else if (ep->type == 0xC1) + return TYPE_EXTEND; + else if (ep->type == 0xC2) + return TYPE_ACL; + return TYPE_CRITICAL_SEC; + } + + return TYPE_BENIGN_SEC; +} + +void fat_set_entry_type(struct dentry_t *p_entry, u32 type) +{ + struct dos_dentry_t *ep = (struct dos_dentry_t *) p_entry; + + if (type == TYPE_UNUSED) + *(ep->name) = 0x0; + + else if (type == TYPE_DELETED) + *(ep->name) = 0xE5; + + else if (type == TYPE_EXTEND) + ep->attr = ATTR_EXTEND; + + else if (type == TYPE_DIR) + ep->attr = ATTR_SUBDIR; + + else if (type == TYPE_FILE) + ep->attr = ATTR_ARCHIVE; + + else if (type == TYPE_SYMLINK) + ep->attr = ATTR_ARCHIVE | ATTR_SYMLINK; +} + +void exfat_set_entry_type(struct dentry_t *p_entry, u32 type) +{ + struct file_dentry_t *ep = (struct file_dentry_t *) p_entry; + + if (type == TYPE_UNUSED) { + ep->type = 0x0; + } else if (type == TYPE_DELETED) { + ep->type &= ~0x80; + } else if (type == TYPE_STREAM) { + ep->type = 0xC0; + } else if (type == TYPE_EXTEND) { + ep->type = 0xC1; + } else if (type == TYPE_BITMAP) { + ep->type = 0x81; + } else if (type == TYPE_UPCASE) { + ep->type = 0x82; + } else if (type == TYPE_VOLUME) { + ep->type = 0x83; + } else if (type == TYPE_DIR) { + ep->type = 0x85; + SET16_A(ep->attr, ATTR_SUBDIR); + } else if (type == TYPE_FILE) { + ep->type = 0x85; + SET16_A(ep->attr, ATTR_ARCHIVE); + } else if (type == TYPE_SYMLINK) { + ep->type = 0x85; + SET16_A(ep->attr, ATTR_ARCHIVE | ATTR_SYMLINK); + } +} + +u32 fat_get_entry_attr(struct dentry_t *p_entry) +{ + struct dos_dentry_t *ep = (struct dos_dentry_t *) p_entry; + + return (u32) ep->attr; +} + +u32 exfat_get_entry_attr(struct dentry_t *p_entry) +{ + struct file_dentry_t *ep = (struct file_dentry_t *) p_entry; + + return (u32) GET16_A(ep->attr); +} + +void fat_set_entry_attr(struct dentry_t *p_entry, u32 attr) +{ + struct dos_dentry_t *ep = (struct dos_dentry_t *) p_entry; + + ep->attr = (u8) attr; +} + +void exfat_set_entry_attr(struct dentry_t *p_entry, u32 attr) +{ + struct file_dentry_t *ep = (struct file_dentry_t *) p_entry; + + SET16_A(ep->attr, (u16) attr); +} + +u8 fat_get_entry_flag(struct dentry_t *p_entry) +{ + return 0x01; +} + +u8 exfat_get_entry_flag(struct dentry_t *p_entry) +{ + struct strm_dentry_t *ep = (struct strm_dentry_t *) p_entry; + + return ep->flags; +} + +void fat_set_entry_flag(struct dentry_t *p_entry, u8 flags) +{ +} + +void exfat_set_entry_flag(struct dentry_t *p_entry, u8 flags) +{ + struct strm_dentry_t *ep = (struct strm_dentry_t *) p_entry; + + ep->flags = flags; +} + +u32 fat_get_entry_clu0(struct dentry_t *p_entry) +{ + struct dos_dentry_t *ep = (struct dos_dentry_t *) p_entry; + + return ((u32)GET16_A(ep->start_clu_hi) << 16) | + GET16_A(ep->start_clu_lo); +} + +u32 exfat_get_entry_clu0(struct dentry_t *p_entry) +{ + struct strm_dentry_t *ep = (struct strm_dentry_t *) p_entry; + + return GET32_A(ep->start_clu); +} + +void fat_set_entry_clu0(struct dentry_t *p_entry, u32 start_clu) +{ + struct dos_dentry_t *ep = (struct dos_dentry_t *)p_entry; + + SET16_A(ep->start_clu_lo, CLUSTER_16(start_clu)); + SET16_A(ep->start_clu_hi, CLUSTER_16(start_clu >> 16)); +} + +void exfat_set_entry_clu0(struct dentry_t *p_entry, u32 start_clu) +{ + struct strm_dentry_t *ep = (struct strm_dentry_t *)p_entry; + + SET32_A(ep->start_clu, start_clu); +} + +u64 fat_get_entry_size(struct dentry_t *p_entry) +{ + struct dos_dentry_t *ep = (struct dos_dentry_t *)p_entry; + + return (u64) GET32_A(ep->size); +} + +u64 exfat_get_entry_size(struct dentry_t *p_entry) +{ + struct strm_dentry_t *ep = (struct strm_dentry_t *)p_entry; + + return GET64_A(ep->valid_size); +} + +void fat_set_entry_size(struct dentry_t *p_entry, u64 size) +{ + struct dos_dentry_t *ep = (struct dos_dentry_t *)p_entry; + + SET32_A(ep->size, (u32) size); +} + +void exfat_set_entry_size(struct dentry_t *p_entry, u64 size) +{ + struct strm_dentry_t *ep = (struct strm_dentry_t *)p_entry; + + SET64_A(ep->valid_size, size); + SET64_A(ep->size, size); +} + +void fat_get_entry_time(struct dentry_t *p_entry, struct timestamp_t *tp, + u8 mode) +{ + u16 t = 0x00, d = 0x21; + struct dos_dentry_t *ep = (struct dos_dentry_t *)p_entry; + + switch (mode) { + case TM_CREATE: + t = GET16_A(ep->create_time); + d = GET16_A(ep->create_date); + break; + case TM_MODIFY: + t = GET16_A(ep->modify_time); + d = GET16_A(ep->modify_date); + break; + } + + tp->sec = (t & 0x001F) << 1; + tp->min = (t >> 5) & 0x003F; + tp->hour = (t >> 11); + tp->day = (d & 0x001F); + tp->mon = (d >> 5) & 0x000F; + tp->year = (d >> 9); +} + +void exfat_get_entry_time(struct dentry_t *p_entry, struct timestamp_t *tp, + u8 mode) +{ + u16 t = 0x00, d = 0x21; + struct file_dentry_t *ep = (struct file_dentry_t *)p_entry; + + switch (mode) { + case TM_CREATE: + t = GET16_A(ep->create_time); + d = GET16_A(ep->create_date); + break; + case TM_MODIFY: + t = GET16_A(ep->modify_time); + d = GET16_A(ep->modify_date); + break; + case TM_ACCESS: + t = GET16_A(ep->access_time); + d = GET16_A(ep->access_date); + break; + } + + tp->sec = (t & 0x001F) << 1; + tp->min = (t >> 5) & 0x003F; + tp->hour = (t >> 11); + tp->day = (d & 0x001F); + tp->mon = (d >> 5) & 0x000F; + tp->year = (d >> 9); +} + +void fat_set_entry_time(struct dentry_t *p_entry, struct timestamp_t *tp, + u8 mode) +{ + u16 t, d; + struct dos_dentry_t *ep = (struct dos_dentry_t *)p_entry; + + t = (tp->hour << 11) | (tp->min << 5) | (tp->sec >> 1); + d = (tp->year << 9) | (tp->mon << 5) | tp->day; + + switch (mode) { + case TM_CREATE: + SET16_A(ep->create_time, t); + SET16_A(ep->create_date, d); + break; + case TM_MODIFY: + SET16_A(ep->modify_time, t); + SET16_A(ep->modify_date, d); + break; + } +} + +void exfat_set_entry_time(struct dentry_t *p_entry, struct timestamp_t *tp, + u8 mode) +{ + u16 t, d; + struct file_dentry_t *ep = (struct file_dentry_t *)p_entry; + + t = (tp->hour << 11) | (tp->min << 5) | (tp->sec >> 1); + d = (tp->year << 9) | (tp->mon << 5) | tp->day; + + switch (mode) { + case TM_CREATE: + SET16_A(ep->create_time, t); + SET16_A(ep->create_date, d); + break; + case TM_MODIFY: + SET16_A(ep->modify_time, t); + SET16_A(ep->modify_date, d); + break; + case TM_ACCESS: + SET16_A(ep->access_time, t); + SET16_A(ep->access_date, d); + break; + } +} + +s32 fat_init_dir_entry(struct super_block *sb, struct chain_t *p_dir, s32 entry, + u32 type, u32 start_clu, u64 size) +{ + sector_t sector; + struct dos_dentry_t *dos_ep; + + dos_ep = (struct dos_dentry_t *)get_entry_in_dir(sb, p_dir, entry, + §or); + if (!dos_ep) + return FFS_MEDIAERR; + + init_dos_entry(dos_ep, type, start_clu); + buf_modify(sb, sector); + + return FFS_SUCCESS; +} + +s32 exfat_init_dir_entry(struct super_block *sb, struct chain_t *p_dir, + s32 entry, u32 type, u32 start_clu, u64 size) +{ + sector_t sector; + u8 flags; + struct file_dentry_t *file_ep; + struct strm_dentry_t *strm_ep; + + flags = (type == TYPE_FILE) ? 0x01 : 0x03; + + /* we cannot use get_entry_set_in_dir here because file ep is not initialized yet */ + file_ep = (struct file_dentry_t *)get_entry_in_dir(sb, p_dir, entry, + §or); + if (!file_ep) + return FFS_MEDIAERR; + + strm_ep = (struct strm_dentry_t *)get_entry_in_dir(sb, p_dir, entry+1, + §or); + if (!strm_ep) + return FFS_MEDIAERR; + + init_file_entry(file_ep, type); + buf_modify(sb, sector); + + init_strm_entry(strm_ep, flags, start_clu, size); + buf_modify(sb, sector); + + return FFS_SUCCESS; +} + +static s32 fat_init_ext_entry(struct super_block *sb, struct chain_t *p_dir, + s32 entry, s32 num_entries, + struct uni_name_t *p_uniname, + struct dos_name_t *p_dosname) +{ + int i; + sector_t sector; + u8 chksum; + u16 *uniname = p_uniname->name; + struct dos_dentry_t *dos_ep; + struct ext_dentry_t *ext_ep; + + dos_ep = (struct dos_dentry_t *)get_entry_in_dir(sb, p_dir, entry, + §or); + if (!dos_ep) + return FFS_MEDIAERR; + + dos_ep->lcase = p_dosname->name_case; + memcpy(dos_ep->name, p_dosname->name, DOS_NAME_LENGTH); + buf_modify(sb, sector); + + if ((--num_entries) > 0) { + chksum = calc_checksum_1byte((void *)dos_ep->name, + DOS_NAME_LENGTH, 0); + + for (i = 1; i < num_entries; i++) { + ext_ep = (struct ext_dentry_t *)get_entry_in_dir(sb, + p_dir, + entry - i, + §or); + if (!ext_ep) + return FFS_MEDIAERR; + + init_ext_entry(ext_ep, i, chksum, uniname); + buf_modify(sb, sector); + uniname += 13; + } + + ext_ep = (struct ext_dentry_t *)get_entry_in_dir(sb, p_dir, + entry - i, + §or); + if (!ext_ep) + return FFS_MEDIAERR; + + init_ext_entry(ext_ep, i+0x40, chksum, uniname); + buf_modify(sb, sector); + } + + return FFS_SUCCESS; +} + +static s32 exfat_init_ext_entry(struct super_block *sb, struct chain_t *p_dir, + s32 entry, s32 num_entries, + struct uni_name_t *p_uniname, + struct dos_name_t *p_dosname) +{ + int i; + sector_t sector; + u16 *uniname = p_uniname->name; + struct file_dentry_t *file_ep; + struct strm_dentry_t *strm_ep; + struct name_dentry_t *name_ep; + + file_ep = (struct file_dentry_t *)get_entry_in_dir(sb, p_dir, entry, + §or); + if (!file_ep) + return FFS_MEDIAERR; + + file_ep->num_ext = (u8)(num_entries - 1); + buf_modify(sb, sector); + + strm_ep = (struct strm_dentry_t *)get_entry_in_dir(sb, p_dir, entry+1, + §or); + if (!strm_ep) + return FFS_MEDIAERR; + + strm_ep->name_len = p_uniname->name_len; + SET16_A(strm_ep->name_hash, p_uniname->name_hash); + buf_modify(sb, sector); + + for (i = 2; i < num_entries; i++) { + name_ep = (struct name_dentry_t *)get_entry_in_dir(sb, p_dir, + entry + i, + §or); + if (!name_ep) + return FFS_MEDIAERR; + + init_name_entry(name_ep, uniname); + buf_modify(sb, sector); + uniname += 15; + } + + update_dir_checksum(sb, p_dir, entry); + + return FFS_SUCCESS; +} + +void init_dos_entry(struct dos_dentry_t *ep, u32 type, u32 start_clu) +{ + struct timestamp_t tm, *tp; + + fat_set_entry_type((struct dentry_t *) ep, type); + SET16_A(ep->start_clu_lo, CLUSTER_16(start_clu)); + SET16_A(ep->start_clu_hi, CLUSTER_16(start_clu >> 16)); + SET32_A(ep->size, 0); + + tp = tm_current(&tm); + fat_set_entry_time((struct dentry_t *) ep, tp, TM_CREATE); + fat_set_entry_time((struct dentry_t *) ep, tp, TM_MODIFY); + SET16_A(ep->access_date, 0); + ep->create_time_ms = 0; +} + +void init_ext_entry(struct ext_dentry_t *ep, s32 order, u8 chksum, u16 *uniname) +{ + int i; + bool end = false; + + fat_set_entry_type((struct dentry_t *) ep, TYPE_EXTEND); + ep->order = (u8) order; + ep->sysid = 0; + ep->checksum = chksum; + SET16_A(ep->start_clu, 0); + + for (i = 0; i < 10; i += 2) { + if (!end) { + SET16(ep->unicode_0_4+i, *uniname); + if (*uniname == 0x0) + end = true; + else + uniname++; + } else { + SET16(ep->unicode_0_4+i, 0xFFFF); + } + } + + for (i = 0; i < 12; i += 2) { + if (!end) { + SET16_A(ep->unicode_5_10 + i, *uniname); + if (*uniname == 0x0) + end = true; + else + uniname++; + } else { + SET16_A(ep->unicode_5_10 + i, 0xFFFF); + } + } + + for (i = 0; i < 4; i += 2) { + if (!end) { + SET16_A(ep->unicode_11_12 + i, *uniname); + if (*uniname == 0x0) + end = true; + else + uniname++; + } else { + SET16_A(ep->unicode_11_12 + i, 0xFFFF); + } + } +} + +void init_file_entry(struct file_dentry_t *ep, u32 type) +{ + struct timestamp_t tm, *tp; + + exfat_set_entry_type((struct dentry_t *)ep, type); + + tp = tm_current(&tm); + exfat_set_entry_time((struct dentry_t *)ep, tp, TM_CREATE); + exfat_set_entry_time((struct dentry_t *)ep, tp, TM_MODIFY); + exfat_set_entry_time((struct dentry_t *)ep, tp, TM_ACCESS); + ep->create_time_ms = 0; + ep->modify_time_ms = 0; + ep->access_time_ms = 0; +} + +void init_strm_entry(struct strm_dentry_t *ep, u8 flags, u32 start_clu, u64 size) +{ + exfat_set_entry_type((struct dentry_t *)ep, TYPE_STREAM); + ep->flags = flags; + SET32_A(ep->start_clu, start_clu); + SET64_A(ep->valid_size, size); + SET64_A(ep->size, size); +} + +void init_name_entry(struct name_dentry_t *ep, u16 *uniname) +{ + int i; + + exfat_set_entry_type((struct dentry_t *)ep, TYPE_EXTEND); + ep->flags = 0x0; + + for (i = 0; i < 30; i++, i++) { + SET16_A(ep->unicode_0_14+i, *uniname); + if (*uniname == 0x0) + break; + uniname++; + } +} + +void fat_delete_dir_entry(struct super_block *sb, struct chain_t *p_dir, + s32 entry, s32 order, s32 num_entries) +{ + int i; + sector_t sector; + struct dentry_t *ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + for (i = num_entries-1; i >= order; i--) { + ep = get_entry_in_dir(sb, p_dir, entry-i, §or); + if (!ep) + return; + + p_fs->fs_func->set_entry_type(ep, TYPE_DELETED); + buf_modify(sb, sector); + } +} + +void exfat_delete_dir_entry(struct super_block *sb, struct chain_t *p_dir, + s32 entry, s32 order, s32 num_entries) +{ + int i; + sector_t sector; + struct dentry_t *ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + for (i = order; i < num_entries; i++) { + ep = get_entry_in_dir(sb, p_dir, entry+i, §or); + if (!ep) + return; + + p_fs->fs_func->set_entry_type(ep, TYPE_DELETED); + buf_modify(sb, sector); + } +} + +void update_dir_checksum(struct super_block *sb, struct chain_t *p_dir, + s32 entry) +{ + int i, num_entries; + sector_t sector; + u16 chksum; + struct file_dentry_t *file_ep; + struct dentry_t *ep; + + file_ep = (struct file_dentry_t *)get_entry_in_dir(sb, p_dir, entry, + §or); + if (!file_ep) + return; + + buf_lock(sb, sector); + + num_entries = (s32) file_ep->num_ext + 1; + chksum = calc_checksum_2byte((void *)file_ep, DENTRY_SIZE, 0, + CS_DIR_ENTRY); + + for (i = 1; i < num_entries; i++) { + ep = get_entry_in_dir(sb, p_dir, entry+i, NULL); + if (!ep) { + buf_unlock(sb, sector); + return; + } + + chksum = calc_checksum_2byte((void *)ep, DENTRY_SIZE, chksum, + CS_DEFAULT); + } + + SET16_A(file_ep->checksum, chksum); + buf_modify(sb, sector); + buf_unlock(sb, sector); +} + +void update_dir_checksum_with_entry_set(struct super_block *sb, + struct entry_set_cache_t *es) +{ + struct dentry_t *ep; + u16 chksum = 0; + s32 chksum_type = CS_DIR_ENTRY, i; + + ep = (struct dentry_t *)&(es->__buf); + for (i = 0; i < es->num_entries; i++) { + pr_debug("%s ep %p\n", __func__, ep); + chksum = calc_checksum_2byte((void *)ep, DENTRY_SIZE, chksum, + chksum_type); + ep++; + chksum_type = CS_DEFAULT; + } + + ep = (struct dentry_t *)&(es->__buf); + SET16_A(((struct file_dentry_t *)ep)->checksum, chksum); + write_whole_entry_set(sb, es); +} + +static s32 _walk_fat_chain(struct super_block *sb, struct chain_t *p_dir, + s32 byte_offset, u32 *clu) +{ + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + s32 clu_offset; + u32 cur_clu; + + clu_offset = byte_offset >> p_fs->cluster_size_bits; + cur_clu = p_dir->dir; + + if (p_dir->flags == 0x03) { + cur_clu += clu_offset; + } else { + while (clu_offset > 0) { + if (FAT_read(sb, cur_clu, &cur_clu) == -1) + return FFS_MEDIAERR; + clu_offset--; + } + } + + if (clu) + *clu = cur_clu; + return FFS_SUCCESS; +} + +s32 find_location(struct super_block *sb, struct chain_t *p_dir, s32 entry, + sector_t *sector, s32 *offset) +{ + s32 off, ret; + u32 clu = 0; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + off = entry << DENTRY_SIZE_BITS; + + if (p_dir->dir == CLUSTER_32(0)) { /* FAT16 root_dir */ + *offset = off & p_bd->sector_size_mask; + *sector = off >> p_bd->sector_size_bits; + *sector += p_fs->root_start_sector; + } else { + ret = _walk_fat_chain(sb, p_dir, off, &clu); + if (ret != FFS_SUCCESS) + return ret; + + /* byte offset in cluster */ + off &= p_fs->cluster_size - 1; + + /* byte offset in sector */ + *offset = off & p_bd->sector_size_mask; + + /* sector offset in cluster */ + *sector = off >> p_bd->sector_size_bits; + *sector += START_SECTOR(clu); + } + return FFS_SUCCESS; +} + +struct dentry_t *get_entry_with_sector(struct super_block *sb, sector_t sector, + s32 offset) +{ + u8 *buf; + + buf = buf_getblk(sb, sector); + + if (buf == NULL) + return NULL; + + return (struct dentry_t *)(buf + offset); +} + +struct dentry_t *get_entry_in_dir(struct super_block *sb, struct chain_t *p_dir, + s32 entry, sector_t *sector) +{ + s32 off; + sector_t sec; + u8 *buf; + + if (find_location(sb, p_dir, entry, &sec, &off) != FFS_SUCCESS) + return NULL; + + buf = buf_getblk(sb, sec); + + if (buf == NULL) + return NULL; + + if (sector != NULL) + *sector = sec; + return (struct dentry_t *)(buf + off); +} + +/* returns a set of dentries for a file or dir. + * Note that this is a copy (dump) of dentries so that user should call write_entry_set() + * to apply changes made in this entry set to the real device. + * in: + * sb+p_dir+entry: indicates a file/dir + * type: specifies how many dentries should be included. + * out: + * file_ep: will point the first dentry(= file dentry) on success + * return: + * pointer of entry set on success, + * NULL on failure. + */ + +#define ES_MODE_STARTED 0 +#define ES_MODE_GET_FILE_ENTRY 1 +#define ES_MODE_GET_STRM_ENTRY 2 +#define ES_MODE_GET_NAME_ENTRY 3 +#define ES_MODE_GET_CRITICAL_SEC_ENTRY 4 +struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb, + struct chain_t *p_dir, s32 entry, + u32 type, + struct dentry_t **file_ep) +{ + s32 off, ret, byte_offset; + u32 clu = 0; + sector_t sec; + u32 entry_type; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + struct entry_set_cache_t *es = NULL; + struct dentry_t *ep, *pos; + u8 *buf; + u8 num_entries; + s32 mode = ES_MODE_STARTED; + size_t bufsize; + + pr_debug("%s entered p_dir dir %u flags %x size %d\n", + __func__, p_dir->dir, p_dir->flags, p_dir->size); + + byte_offset = entry << DENTRY_SIZE_BITS; + ret = _walk_fat_chain(sb, p_dir, byte_offset, &clu); + if (ret != FFS_SUCCESS) + return NULL; + + /* byte offset in cluster */ + byte_offset &= p_fs->cluster_size - 1; + + /* byte offset in sector */ + off = byte_offset & p_bd->sector_size_mask; + + /* sector offset in cluster */ + sec = byte_offset >> p_bd->sector_size_bits; + sec += START_SECTOR(clu); + + buf = buf_getblk(sb, sec); + if (buf == NULL) + goto err_out; + + ep = (struct dentry_t *)(buf + off); + entry_type = p_fs->fs_func->get_entry_type(ep); + + if ((entry_type != TYPE_FILE) + && (entry_type != TYPE_DIR)) + goto err_out; + + if (type == ES_ALL_ENTRIES) + num_entries = ((struct file_dentry_t *)ep)->num_ext+1; + else + num_entries = type; + + bufsize = offsetof(struct entry_set_cache_t, __buf) + (num_entries) * + sizeof(struct dentry_t); + pr_debug("%s: trying to kmalloc %zx bytes for %d entries\n", __func__, + bufsize, num_entries); + es = kmalloc(bufsize, GFP_KERNEL); + if (es == NULL) + goto err_out; + + es->num_entries = num_entries; + es->sector = sec; + es->offset = off; + es->alloc_flag = p_dir->flags; + + pos = (struct dentry_t *) &(es->__buf); + + while (num_entries) { + /* + * instead of copying whole sector, we will check every entry. + * this will provide minimum stablity and consistency. + */ + entry_type = p_fs->fs_func->get_entry_type(ep); + + if ((entry_type == TYPE_UNUSED) || (entry_type == TYPE_DELETED)) + goto err_out; + + switch (mode) { + case ES_MODE_STARTED: + if ((entry_type == TYPE_FILE) || (entry_type == TYPE_DIR)) + mode = ES_MODE_GET_FILE_ENTRY; + else + goto err_out; + break; + case ES_MODE_GET_FILE_ENTRY: + if (entry_type == TYPE_STREAM) + mode = ES_MODE_GET_STRM_ENTRY; + else + goto err_out; + break; + case ES_MODE_GET_STRM_ENTRY: + if (entry_type == TYPE_EXTEND) + mode = ES_MODE_GET_NAME_ENTRY; + else + goto err_out; + break; + case ES_MODE_GET_NAME_ENTRY: + if (entry_type == TYPE_EXTEND) + break; + else if (entry_type == TYPE_STREAM) + goto err_out; + else if (entry_type & TYPE_CRITICAL_SEC) + mode = ES_MODE_GET_CRITICAL_SEC_ENTRY; + else + goto err_out; + break; + case ES_MODE_GET_CRITICAL_SEC_ENTRY: + if ((entry_type == TYPE_EXTEND) || + (entry_type == TYPE_STREAM)) + goto err_out; + else if ((entry_type & TYPE_CRITICAL_SEC) != + TYPE_CRITICAL_SEC) + goto err_out; + break; + } + + memcpy(pos, ep, sizeof(struct dentry_t)); + + if (--num_entries == 0) + break; + + if (((off + DENTRY_SIZE) & p_bd->sector_size_mask) < + (off & p_bd->sector_size_mask)) { + /* get the next sector */ + if (IS_LAST_SECTOR_IN_CLUSTER(sec)) { + if (es->alloc_flag == 0x03) { + clu++; + } else { + if (FAT_read(sb, clu, &clu) == -1) + goto err_out; + } + sec = START_SECTOR(clu); + } else { + sec++; + } + buf = buf_getblk(sb, sec); + if (buf == NULL) + goto err_out; + off = 0; + ep = (struct dentry_t *)(buf); + } else { + ep++; + off += DENTRY_SIZE; + } + pos++; + } + + if (file_ep) + *file_ep = (struct dentry_t *)&(es->__buf); + + pr_debug("%s exiting es %p sec %llu offset %d flags %d, num_entries %u buf ptr %p\n", + __func__, es, (unsigned long long)es->sector, es->offset, + es->alloc_flag, es->num_entries, &es->__buf); + return es; +err_out: + pr_debug("%s exited NULL (es %p)\n", __func__, es); + kfree(es); + return NULL; +} + +void release_entry_set(struct entry_set_cache_t *es) +{ + pr_debug("%s es=%p\n", __func__, es); + kfree(es); +} + +static s32 __write_partial_entries_in_entry_set(struct super_block *sb, + struct entry_set_cache_t *es, + sector_t sec, s32 off, u32 count) +{ + s32 num_entries, buf_off = (off - es->offset); + u32 remaining_byte_in_sector, copy_entries; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + u32 clu; + u8 *buf, *esbuf = (u8 *)&(es->__buf); + + pr_debug("%s entered es %p sec %llu off %d count %d\n", + __func__, es, (unsigned long long)sec, off, count); + num_entries = count; + + while (num_entries) { + /* white per sector base */ + remaining_byte_in_sector = (1 << p_bd->sector_size_bits) - off; + copy_entries = min_t(s32, + remaining_byte_in_sector >> DENTRY_SIZE_BITS, + num_entries); + buf = buf_getblk(sb, sec); + if (buf == NULL) + goto err_out; + pr_debug("es->buf %p buf_off %u\n", esbuf, buf_off); + pr_debug("copying %d entries from %p to sector %llu\n", + copy_entries, (esbuf + buf_off), + (unsigned long long)sec); + memcpy(buf + off, esbuf + buf_off, + copy_entries << DENTRY_SIZE_BITS); + buf_modify(sb, sec); + num_entries -= copy_entries; + + if (num_entries) { + /* get next sector */ + if (IS_LAST_SECTOR_IN_CLUSTER(sec)) { + clu = GET_CLUSTER_FROM_SECTOR(sec); + if (es->alloc_flag == 0x03) { + clu++; + } else { + if (FAT_read(sb, clu, &clu) == -1) + goto err_out; + } + sec = START_SECTOR(clu); + } else { + sec++; + } + off = 0; + buf_off += copy_entries << DENTRY_SIZE_BITS; + } + } + + pr_debug("%s exited successfully\n", __func__); + return FFS_SUCCESS; +err_out: + pr_debug("%s failed\n", __func__); + return FFS_ERROR; +} + +/* write back all entries in entry set */ +s32 write_whole_entry_set(struct super_block *sb, struct entry_set_cache_t *es) +{ + return __write_partial_entries_in_entry_set(sb, es, es->sector, + es->offset, + es->num_entries); +} + +/* write back some entries in entry set */ +s32 write_partial_entries_in_entry_set(struct super_block *sb, + struct entry_set_cache_t *es, struct dentry_t *ep, u32 count) +{ + s32 ret, byte_offset, off; + u32 clu = 0; + sector_t sec; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + struct chain_t dir; + + /* vaidity check */ + if (ep + count > ((struct dentry_t *)&(es->__buf)) + es->num_entries) + return FFS_ERROR; + + dir.dir = GET_CLUSTER_FROM_SECTOR(es->sector); + dir.flags = es->alloc_flag; + dir.size = 0xffffffff; /* XXX */ + + byte_offset = (es->sector - START_SECTOR(dir.dir)) << + p_bd->sector_size_bits; + byte_offset += ((void **)ep - &(es->__buf)) + es->offset; + + ret = _walk_fat_chain(sb, &dir, byte_offset, &clu); + if (ret != FFS_SUCCESS) + return ret; + + /* byte offset in cluster */ + byte_offset &= p_fs->cluster_size - 1; + + /* byte offset in sector */ + off = byte_offset & p_bd->sector_size_mask; + + /* sector offset in cluster */ + sec = byte_offset >> p_bd->sector_size_bits; + sec += START_SECTOR(clu); + return __write_partial_entries_in_entry_set(sb, es, sec, off, count); +} + +/* search EMPTY CONTINUOUS "num_entries" entries */ +s32 search_deleted_or_unused_entry(struct super_block *sb, + struct chain_t *p_dir, s32 num_entries) +{ + int i, dentry, num_empty = 0; + s32 dentries_per_clu; + u32 type; + struct chain_t clu; + struct dentry_t *ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if (p_dir->dir == CLUSTER_32(0)) /* FAT16 root_dir */ + dentries_per_clu = p_fs->dentries_in_root; + else + dentries_per_clu = p_fs->dentries_per_clu; + + if (p_fs->hint_uentry.dir == p_dir->dir) { + if (p_fs->hint_uentry.entry == -1) + return -1; + + clu.dir = p_fs->hint_uentry.clu.dir; + clu.size = p_fs->hint_uentry.clu.size; + clu.flags = p_fs->hint_uentry.clu.flags; + + dentry = p_fs->hint_uentry.entry; + } else { + p_fs->hint_uentry.entry = -1; + + clu.dir = p_dir->dir; + clu.size = p_dir->size; + clu.flags = p_dir->flags; + + dentry = 0; + } + + while (clu.dir != CLUSTER_32(~0)) { + if (p_fs->dev_ejected) + break; + + if (p_dir->dir == CLUSTER_32(0)) /* FAT16 root_dir */ + i = dentry % dentries_per_clu; + else + i = dentry & (dentries_per_clu-1); + + for (; i < dentries_per_clu; i++, dentry++) { + ep = get_entry_in_dir(sb, &clu, i, NULL); + if (!ep) + return -1; + + type = p_fs->fs_func->get_entry_type(ep); + + if (type == TYPE_UNUSED) { + num_empty++; + if (p_fs->hint_uentry.entry == -1) { + p_fs->hint_uentry.dir = p_dir->dir; + p_fs->hint_uentry.entry = dentry; + + p_fs->hint_uentry.clu.dir = clu.dir; + p_fs->hint_uentry.clu.size = clu.size; + p_fs->hint_uentry.clu.flags = clu.flags; + } + } else if (type == TYPE_DELETED) { + num_empty++; + } else { + num_empty = 0; + } + + if (num_empty >= num_entries) { + p_fs->hint_uentry.dir = CLUSTER_32(~0); + p_fs->hint_uentry.entry = -1; + + if (p_fs->vol_type == EXFAT) + return dentry - (num_entries-1); + else + return dentry; + } + } + + if (p_dir->dir == CLUSTER_32(0)) + break; /* FAT16 root_dir */ + + if (clu.flags == 0x03) { + if ((--clu.size) > 0) + clu.dir++; + else + clu.dir = CLUSTER_32(~0); + } else { + if (FAT_read(sb, clu.dir, &clu.dir) != 0) + return -1; + } + } + + return -1; +} + +s32 find_empty_entry(struct inode *inode, struct chain_t *p_dir, s32 num_entries) +{ + s32 ret, dentry; + u32 last_clu; + sector_t sector; + u64 size = 0; + struct chain_t clu; + struct dentry_t *ep = NULL; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct file_id_t *fid = &(EXFAT_I(inode)->fid); + + if (p_dir->dir == CLUSTER_32(0)) /* FAT16 root_dir */ + return search_deleted_or_unused_entry(sb, p_dir, num_entries); + + while ((dentry = search_deleted_or_unused_entry(sb, p_dir, num_entries)) < 0) { + if (p_fs->dev_ejected) + break; + + if (p_fs->vol_type == EXFAT) { + if (p_dir->dir != p_fs->root_dir) + size = i_size_read(inode); + } + + last_clu = find_last_cluster(sb, p_dir); + clu.dir = last_clu + 1; + clu.size = 0; + clu.flags = p_dir->flags; + + /* (1) allocate a cluster */ + ret = p_fs->fs_func->alloc_cluster(sb, 1, &clu); + if (ret < 1) + return -1; + + if (clear_cluster(sb, clu.dir) != FFS_SUCCESS) + return -1; + + /* (2) append to the FAT chain */ + if (clu.flags != p_dir->flags) { + exfat_chain_cont_cluster(sb, p_dir->dir, p_dir->size); + p_dir->flags = 0x01; + p_fs->hint_uentry.clu.flags = 0x01; + } + if (clu.flags == 0x01) + if (FAT_write(sb, last_clu, clu.dir) < 0) + return -1; + + if (p_fs->hint_uentry.entry == -1) { + p_fs->hint_uentry.dir = p_dir->dir; + p_fs->hint_uentry.entry = p_dir->size << (p_fs->cluster_size_bits - DENTRY_SIZE_BITS); + + p_fs->hint_uentry.clu.dir = clu.dir; + p_fs->hint_uentry.clu.size = 0; + p_fs->hint_uentry.clu.flags = clu.flags; + } + p_fs->hint_uentry.clu.size++; + p_dir->size++; + + /* (3) update the directory entry */ + if (p_fs->vol_type == EXFAT) { + if (p_dir->dir != p_fs->root_dir) { + size += p_fs->cluster_size; + + ep = get_entry_in_dir(sb, &fid->dir, + fid->entry + 1, §or); + if (!ep) + return -1; + p_fs->fs_func->set_entry_size(ep, size); + p_fs->fs_func->set_entry_flag(ep, p_dir->flags); + buf_modify(sb, sector); + + update_dir_checksum(sb, &(fid->dir), + fid->entry); + } + } + + i_size_write(inode, i_size_read(inode)+p_fs->cluster_size); + EXFAT_I(inode)->mmu_private += p_fs->cluster_size; + EXFAT_I(inode)->fid.size += p_fs->cluster_size; + EXFAT_I(inode)->fid.flags = p_dir->flags; + inode->i_blocks += 1 << (p_fs->cluster_size_bits - 9); + } + + return dentry; +} + +/* return values of fat_find_dir_entry() + * >= 0 : return dir entiry position with the name in dir + * -1 : (root dir, ".") it is the root dir itself + * -2 : entry with the name does not exist + */ +s32 fat_find_dir_entry(struct super_block *sb, struct chain_t *p_dir, + struct uni_name_t *p_uniname, s32 num_entries, + struct dos_name_t *p_dosname, u32 type) +{ + int i, dentry = 0, len; + s32 order = 0; + bool is_feasible_entry = true, has_ext_entry = false; + s32 dentries_per_clu; + u32 entry_type; + u16 entry_uniname[14], *uniname = NULL, unichar; + struct chain_t clu; + struct dentry_t *ep; + struct dos_dentry_t *dos_ep; + struct ext_dentry_t *ext_ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if (p_dir->dir == p_fs->root_dir) { + if ((!nls_uniname_cmp(sb, p_uniname->name, + (u16 *)UNI_CUR_DIR_NAME)) || + (!nls_uniname_cmp(sb, p_uniname->name, + (u16 *)UNI_PAR_DIR_NAME))) + return -1; // special case, root directory itself + } + + if (p_dir->dir == CLUSTER_32(0)) /* FAT16 root_dir */ + dentries_per_clu = p_fs->dentries_in_root; + else + dentries_per_clu = p_fs->dentries_per_clu; + + clu.dir = p_dir->dir; + clu.flags = p_dir->flags; + + while (clu.dir != CLUSTER_32(~0)) { + if (p_fs->dev_ejected) + break; + + for (i = 0; i < dentries_per_clu; i++, dentry++) { + ep = get_entry_in_dir(sb, &clu, i, NULL); + if (!ep) + return -2; + + entry_type = p_fs->fs_func->get_entry_type(ep); + + if ((entry_type == TYPE_FILE) || (entry_type == TYPE_DIR)) { + if ((type == TYPE_ALL) || (type == entry_type)) { + if (is_feasible_entry && has_ext_entry) + return dentry; + + dos_ep = (struct dos_dentry_t *) ep; + if (!nls_dosname_cmp(sb, p_dosname->name, dos_ep->name)) + return dentry; + } + is_feasible_entry = true; + has_ext_entry = false; + } else if (entry_type == TYPE_EXTEND) { + if (is_feasible_entry) { + ext_ep = (struct ext_dentry_t *) ep; + if (ext_ep->order > 0x40) { + order = (s32)(ext_ep->order - 0x40); + uniname = p_uniname->name + 13 * (order-1); + } else { + order = (s32) ext_ep->order; + uniname -= 13; + } + + len = extract_uni_name_from_ext_entry(ext_ep, entry_uniname, order); + + unichar = *(uniname+len); + *(uniname+len) = 0x0; + + if (nls_uniname_cmp(sb, uniname, entry_uniname)) + is_feasible_entry = false; + + *(uniname+len) = unichar; + } + has_ext_entry = true; + } else if (entry_type == TYPE_UNUSED) { + return -2; + } + is_feasible_entry = true; + has_ext_entry = false; + } + + if (p_dir->dir == CLUSTER_32(0)) + break; /* FAT16 root_dir */ + + if (FAT_read(sb, clu.dir, &clu.dir) != 0) + return -2; + } + + return -2; +} + +/* return values of exfat_find_dir_entry() + * >= 0 : return dir entiry position with the name in dir + * -1 : (root dir, ".") it is the root dir itself + * -2 : entry with the name does not exist + */ +s32 exfat_find_dir_entry(struct super_block *sb, struct chain_t *p_dir, + struct uni_name_t *p_uniname, s32 num_entries, + struct dos_name_t *p_dosname, u32 type) +{ + int i = 0, dentry = 0, num_ext_entries = 0, len, step; + s32 order = 0; + bool is_feasible_entry = false; + s32 dentries_per_clu, num_empty = 0; + u32 entry_type; + u16 entry_uniname[16], *uniname = NULL, unichar; + struct chain_t clu; + struct dentry_t *ep; + struct file_dentry_t *file_ep; + struct strm_dentry_t *strm_ep; + struct name_dentry_t *name_ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if (p_dir->dir == p_fs->root_dir) { + if ((!nls_uniname_cmp(sb, p_uniname->name, + (u16 *)UNI_CUR_DIR_NAME)) || + (!nls_uniname_cmp(sb, p_uniname->name, + (u16 *)UNI_PAR_DIR_NAME))) + return -1; // special case, root directory itself + } + + if (p_dir->dir == CLUSTER_32(0)) /* FAT16 root_dir */ + dentries_per_clu = p_fs->dentries_in_root; + else + dentries_per_clu = p_fs->dentries_per_clu; + + clu.dir = p_dir->dir; + clu.size = p_dir->size; + clu.flags = p_dir->flags; + + p_fs->hint_uentry.dir = p_dir->dir; + p_fs->hint_uentry.entry = -1; + + while (clu.dir != CLUSTER_32(~0)) { + if (p_fs->dev_ejected) + break; + + while (i < dentries_per_clu) { + ep = get_entry_in_dir(sb, &clu, i, NULL); + if (!ep) + return -2; + + entry_type = p_fs->fs_func->get_entry_type(ep); + step = 1; + + if ((entry_type == TYPE_UNUSED) || (entry_type == TYPE_DELETED)) { + is_feasible_entry = false; + + if (p_fs->hint_uentry.entry == -1) { + num_empty++; + + if (num_empty == 1) { + p_fs->hint_uentry.clu.dir = clu.dir; + p_fs->hint_uentry.clu.size = clu.size; + p_fs->hint_uentry.clu.flags = clu.flags; + } + if ((num_empty >= num_entries) || (entry_type == TYPE_UNUSED)) + p_fs->hint_uentry.entry = dentry - (num_empty-1); + } + + if (entry_type == TYPE_UNUSED) + return -2; + } else { + num_empty = 0; + + if ((entry_type == TYPE_FILE) || (entry_type == TYPE_DIR)) { + file_ep = (struct file_dentry_t *) ep; + if ((type == TYPE_ALL) || (type == entry_type)) { + num_ext_entries = file_ep->num_ext; + is_feasible_entry = true; + } else { + is_feasible_entry = false; + step = file_ep->num_ext + 1; + } + } else if (entry_type == TYPE_STREAM) { + if (is_feasible_entry) { + strm_ep = (struct strm_dentry_t *)ep; + if (p_uniname->name_hash == GET16_A(strm_ep->name_hash) && + p_uniname->name_len == strm_ep->name_len) { + order = 1; + } else { + is_feasible_entry = false; + step = num_ext_entries; + } + } + } else if (entry_type == TYPE_EXTEND) { + if (is_feasible_entry) { + name_ep = (struct name_dentry_t *)ep; + + if ((++order) == 2) + uniname = p_uniname->name; + else + uniname += 15; + + len = extract_uni_name_from_name_entry(name_ep, + entry_uniname, order); + + unichar = *(uniname+len); + *(uniname+len) = 0x0; + + if (nls_uniname_cmp(sb, uniname, entry_uniname)) { + is_feasible_entry = false; + step = num_ext_entries - order + 1; + } else if (order == num_ext_entries) { + p_fs->hint_uentry.dir = CLUSTER_32(~0); + p_fs->hint_uentry.entry = -1; + return dentry - (num_ext_entries); + } + + *(uniname+len) = unichar; + } + } else { + is_feasible_entry = false; + } + } + + i += step; + dentry += step; + } + + i -= dentries_per_clu; + + if (p_dir->dir == CLUSTER_32(0)) + break; /* FAT16 root_dir */ + + if (clu.flags == 0x03) { + if ((--clu.size) > 0) + clu.dir++; + else + clu.dir = CLUSTER_32(~0); + } else { + if (FAT_read(sb, clu.dir, &clu.dir) != 0) + return -2; + } + } + + return -2; +} + +s32 fat_count_ext_entries(struct super_block *sb, struct chain_t *p_dir, + s32 entry, struct dentry_t *p_entry) +{ + s32 count = 0; + u8 chksum; + struct dos_dentry_t *dos_ep = (struct dos_dentry_t *) p_entry; + struct ext_dentry_t *ext_ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + chksum = calc_checksum_1byte((void *) dos_ep->name, DOS_NAME_LENGTH, 0); + + for (entry--; entry >= 0; entry--) { + ext_ep = (struct ext_dentry_t *)get_entry_in_dir(sb, p_dir, + entry, NULL); + if (!ext_ep) + return -1; + + if ((p_fs->fs_func->get_entry_type((struct dentry_t *)ext_ep) == + TYPE_EXTEND) && (ext_ep->checksum == chksum)) { + count++; + if (ext_ep->order > 0x40) + return count; + } else { + return count; + } + } + + return count; +} + +s32 exfat_count_ext_entries(struct super_block *sb, struct chain_t *p_dir, + s32 entry, struct dentry_t *p_entry) +{ + int i, count = 0; + u32 type; + struct file_dentry_t *file_ep = (struct file_dentry_t *)p_entry; + struct dentry_t *ext_ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + for (i = 0, entry++; i < file_ep->num_ext; i++, entry++) { + ext_ep = get_entry_in_dir(sb, p_dir, entry, NULL); + if (!ext_ep) + return -1; + + type = p_fs->fs_func->get_entry_type(ext_ep); + if ((type == TYPE_EXTEND) || (type == TYPE_STREAM)) + count++; + else + return count; + } + + return count; +} + +s32 count_dos_name_entries(struct super_block *sb, struct chain_t *p_dir, + u32 type) +{ + int i, count = 0; + s32 dentries_per_clu; + u32 entry_type; + struct chain_t clu; + struct dentry_t *ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if (p_dir->dir == CLUSTER_32(0)) /* FAT16 root_dir */ + dentries_per_clu = p_fs->dentries_in_root; + else + dentries_per_clu = p_fs->dentries_per_clu; + + clu.dir = p_dir->dir; + clu.size = p_dir->size; + clu.flags = p_dir->flags; + + while (clu.dir != CLUSTER_32(~0)) { + if (p_fs->dev_ejected) + break; + + for (i = 0; i < dentries_per_clu; i++) { + ep = get_entry_in_dir(sb, &clu, i, NULL); + if (!ep) + return -1; + + entry_type = p_fs->fs_func->get_entry_type(ep); + + if (entry_type == TYPE_UNUSED) + return count; + if (!(type & TYPE_CRITICAL_PRI) && + !(type & TYPE_BENIGN_PRI)) + continue; + + if ((type == TYPE_ALL) || (type == entry_type)) + count++; + } + + if (p_dir->dir == CLUSTER_32(0)) + break; /* FAT16 root_dir */ + + if (clu.flags == 0x03) { + if ((--clu.size) > 0) + clu.dir++; + else + clu.dir = CLUSTER_32(~0); + } else { + if (FAT_read(sb, clu.dir, &clu.dir) != 0) + return -1; + } + } + + return count; +} + +bool is_dir_empty(struct super_block *sb, struct chain_t *p_dir) +{ + int i, count = 0; + s32 dentries_per_clu; + u32 type; + struct chain_t clu; + struct dentry_t *ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if (p_dir->dir == CLUSTER_32(0)) /* FAT16 root_dir */ + dentries_per_clu = p_fs->dentries_in_root; + else + dentries_per_clu = p_fs->dentries_per_clu; + + clu.dir = p_dir->dir; + clu.size = p_dir->size; + clu.flags = p_dir->flags; + + while (clu.dir != CLUSTER_32(~0)) { + if (p_fs->dev_ejected) + break; + + for (i = 0; i < dentries_per_clu; i++) { + ep = get_entry_in_dir(sb, &clu, i, NULL); + if (!ep) + break; + + type = p_fs->fs_func->get_entry_type(ep); + + if (type == TYPE_UNUSED) + return true; + if ((type != TYPE_FILE) && (type != TYPE_DIR)) + continue; + + if (p_dir->dir == CLUSTER_32(0)) /* FAT16 root_dir */ + return false; + + if (p_fs->vol_type == EXFAT) + return false; + if ((p_dir->dir == p_fs->root_dir) || ((++count) > 2)) + return false; + } + + if (p_dir->dir == CLUSTER_32(0)) + break; /* FAT16 root_dir */ + + if (clu.flags == 0x03) { + if ((--clu.size) > 0) + clu.dir++; + else + clu.dir = CLUSTER_32(~0); + } + if (FAT_read(sb, clu.dir, &clu.dir) != 0) + break; + } + + return true; +} + +/* + * Name Conversion Functions + */ + +/* input : dir, uni_name + * output : num_of_entry, dos_name(format : aaaaaa~1.bbb) + */ +s32 get_num_entries_and_dos_name(struct super_block *sb, struct chain_t *p_dir, + struct uni_name_t *p_uniname, s32 *entries, + struct dos_name_t *p_dosname) +{ + s32 ret, num_entries; + bool lossy = false; + char **r; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + num_entries = p_fs->fs_func->calc_num_entries(p_uniname); + if (num_entries == 0) + return FFS_INVALIDPATH; + + if (p_fs->vol_type != EXFAT) { + nls_uniname_to_dosname(sb, p_dosname, p_uniname, &lossy); + + if (lossy) { + ret = fat_generate_dos_name(sb, p_dir, p_dosname); + if (ret) + return ret; + } else { + for (r = reserved_names; *r; r++) { + if (!strncmp((void *)p_dosname->name, *r, 8)) + return FFS_INVALIDPATH; + } + + if (p_dosname->name_case != 0xFF) + num_entries = 1; + } + + if (num_entries > 1) + p_dosname->name_case = 0x0; + } + + *entries = num_entries; + + return FFS_SUCCESS; +} + +void get_uni_name_from_dos_entry(struct super_block *sb, + struct dos_dentry_t *ep, + struct uni_name_t *p_uniname, u8 mode) +{ + struct dos_name_t dos_name; + + if (mode == 0x0) + dos_name.name_case = 0x0; + else + dos_name.name_case = ep->lcase; + + memcpy(dos_name.name, ep->name, DOS_NAME_LENGTH); + nls_dosname_to_uniname(sb, p_uniname, &dos_name); +} + +void fat_get_uni_name_from_ext_entry(struct super_block *sb, + struct chain_t *p_dir, s32 entry, + u16 *uniname) +{ + int i; + struct ext_dentry_t *ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + for (entry--, i = 1; entry >= 0; entry--, i++) { + ep = (struct ext_dentry_t *)get_entry_in_dir(sb, p_dir, entry, + NULL); + if (!ep) + return; + + if (p_fs->fs_func->get_entry_type((struct dentry_t *)ep) == + TYPE_EXTEND) { + extract_uni_name_from_ext_entry(ep, uniname, i); + if (ep->order > 0x40) + return; + } else { + return; + } + + uniname += 13; + } +} + +void exfat_get_uni_name_from_ext_entry(struct super_block *sb, + struct chain_t *p_dir, s32 entry, + u16 *uniname) +{ + int i; + struct dentry_t *ep; + struct entry_set_cache_t *es; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + es = get_entry_set_in_dir(sb, p_dir, entry, ES_ALL_ENTRIES, &ep); + if (es == NULL || es->num_entries < 3) { + if (es) + release_entry_set(es); + return; + } + + ep += 2; + + /* + * First entry : file entry + * Second entry : stream-extension entry + * Third entry : first file-name entry + * So, the index of first file-name dentry should start from 2. + */ + for (i = 2; i < es->num_entries; i++, ep++) { + if (p_fs->fs_func->get_entry_type(ep) == TYPE_EXTEND) + extract_uni_name_from_name_entry((struct name_dentry_t *) + ep, uniname, i); + else + goto out; + uniname += 15; + } + +out: + release_entry_set(es); +} + +s32 extract_uni_name_from_ext_entry(struct ext_dentry_t *ep, u16 *uniname, + s32 order) +{ + int i, len = 0; + + for (i = 0; i < 10; i += 2) { + *uniname = GET16(ep->unicode_0_4 + i); + if (*uniname == 0x0) + return len; + uniname++; + len++; + } + + if (order < 20) { + for (i = 0; i < 12; i += 2) { + *uniname = GET16_A(ep->unicode_5_10 + i); + if (*uniname == 0x0) + return len; + uniname++; + len++; + } + } else { + for (i = 0; i < 8; i += 2) { + *uniname = GET16_A(ep->unicode_5_10 + i); + if (*uniname == 0x0) + return len; + uniname++; + len++; + } + *uniname = 0x0; /* uniname[MAX_NAME_LENGTH-1] */ + return len; + } + + for (i = 0; i < 4; i += 2) { + *uniname = GET16_A(ep->unicode_11_12 + i); + if (*uniname == 0x0) + return len; + uniname++; + len++; + } + + *uniname = 0x0; + return len; +} + +s32 extract_uni_name_from_name_entry(struct name_dentry_t *ep, u16 *uniname, + s32 order) +{ + int i, len = 0; + + for (i = 0; i < 30; i += 2) { + *uniname = GET16_A(ep->unicode_0_14 + i); + if (*uniname == 0x0) + return len; + uniname++; + len++; + } + + *uniname = 0x0; + return len; +} + +s32 fat_generate_dos_name(struct super_block *sb, struct chain_t *p_dir, + struct dos_name_t *p_dosname) +{ + int i, j, count = 0; + bool count_begin = false; + s32 dentries_per_clu; + u32 type; + u8 bmap[128/* 1 ~ 1023 */]; + struct chain_t clu; + struct dos_dentry_t *ep; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + memset(bmap, 0, sizeof(bmap)); + exfat_bitmap_set(bmap, 0); + + if (p_dir->dir == CLUSTER_32(0)) /* FAT16 root_dir */ + dentries_per_clu = p_fs->dentries_in_root; + else + dentries_per_clu = p_fs->dentries_per_clu; + + clu.dir = p_dir->dir; + clu.flags = p_dir->flags; + + while (clu.dir != CLUSTER_32(~0)) { + if (p_fs->dev_ejected) + break; + + for (i = 0; i < dentries_per_clu; i++) { + ep = (struct dos_dentry_t *)get_entry_in_dir(sb, &clu, + i, NULL); + if (!ep) + return FFS_MEDIAERR; + + type = p_fs->fs_func->get_entry_type((struct dentry_t *) + ep); + + if (type == TYPE_UNUSED) + break; + if ((type != TYPE_FILE) && (type != TYPE_DIR)) + continue; + + count = 0; + count_begin = false; + + for (j = 0; j < 8; j++) { + if (ep->name[j] == ' ') + break; + + if (ep->name[j] == '~') { + count_begin = true; + } else if (count_begin) { + if ((ep->name[j] >= '0') && + (ep->name[j] <= '9')) { + count = count * 10 + + (ep->name[j] - '0'); + } else { + count = 0; + count_begin = false; + } + } + } + + if ((count > 0) && (count < 1024)) + exfat_bitmap_set(bmap, count); + } + + if (p_dir->dir == CLUSTER_32(0)) + break; /* FAT16 root_dir */ + + if (FAT_read(sb, clu.dir, &clu.dir) != 0) + return FFS_MEDIAERR; + } + + count = 0; + for (i = 0; i < 128; i++) { + if (bmap[i] != 0xFF) { + for (j = 0; j < 8; j++) { + if (exfat_bitmap_test(&bmap[i], j) == 0) { + count = (i << 3) + j; + break; + } + } + if (count != 0) + break; + } + } + + if ((count == 0) || (count >= 1024)) + return FFS_FILEEXIST; + fat_attach_count_to_dos_name(p_dosname->name, count); + + /* Now dos_name has DOS~????.EXT */ + return FFS_SUCCESS; +} + +void fat_attach_count_to_dos_name(u8 *dosname, s32 count) +{ + int i, j, length; + char str_count[6]; + + snprintf(str_count, sizeof(str_count), "~%d", count); + length = strlen(str_count); + + i = 0; + j = 0; + while (j <= (8 - length)) { + i = j; + if (dosname[j] == ' ') + break; + if (dosname[j] & 0x80) + j += 2; + else + j++; + } + + for (j = 0; j < length; i++, j++) + dosname[i] = (u8)str_count[j]; + + if (i == 7) + dosname[7] = ' '; +} + +s32 fat_calc_num_entries(struct uni_name_t *p_uniname) +{ + s32 len; + + len = p_uniname->name_len; + if (len == 0) + return 0; + + /* 1 dos name entry + extended entries */ + return (len - 1) / 13 + 2; +} + +s32 exfat_calc_num_entries(struct uni_name_t *p_uniname) +{ + s32 len; + + len = p_uniname->name_len; + if (len == 0) + return 0; + + /* 1 file entry + 1 stream entry + name entries */ + return (len - 1) / 15 + 3; +} + +u8 calc_checksum_1byte(void *data, s32 len, u8 chksum) +{ + int i; + u8 *c = (u8 *)data; + + for (i = 0; i < len; i++, c++) + chksum = (((chksum & 1) << 7) | ((chksum & 0xFE) >> 1)) + *c; + + return chksum; +} + +u16 calc_checksum_2byte(void *data, s32 len, u16 chksum, s32 type) +{ + int i; + u8 *c = (u8 *)data; + + switch (type) { + case CS_DIR_ENTRY: + for (i = 0; i < len; i++, c++) { + if ((i == 2) || (i == 3)) + continue; + chksum = (((chksum & 1) << 15) | + ((chksum & 0xFFFE) >> 1)) + (u16)*c; + } + break; + default + : + for (i = 0; i < len; i++, c++) + chksum = (((chksum & 1) << 15) | + ((chksum & 0xFFFE) >> 1)) + (u16)*c; + } + + return chksum; +} + +u32 calc_checksum_4byte(void *data, s32 len, u32 chksum, s32 type) +{ + int i; + u8 *c = (u8 *)data; + + switch (type) { + case CS_PBR_SECTOR: + for (i = 0; i < len; i++, c++) { + if ((i == 106) || (i == 107) || (i == 112)) + continue; + chksum = (((chksum & 1) << 31) | + ((chksum & 0xFFFFFFFE) >> 1)) + (u32)*c; + } + break; + default + : + for (i = 0; i < len; i++, c++) + chksum = (((chksum & 1) << 31) | + ((chksum & 0xFFFFFFFE) >> 1)) + (u32)*c; + } + + return chksum; +} + +/* + * Name Resolution Functions + */ + +/* return values of resolve_path() + * > 0 : return the length of the path + * < 0 : return error + */ +s32 resolve_path(struct inode *inode, char *path, struct chain_t *p_dir, + struct uni_name_t *p_uniname) +{ + bool lossy = false; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct file_id_t *fid = &(EXFAT_I(inode)->fid); + + if (strlen(path) >= (MAX_NAME_LENGTH * MAX_CHARSET_SIZE)) + return FFS_INVALIDPATH; + + strcpy(name_buf, path); + + nls_cstring_to_uniname(sb, p_uniname, name_buf, &lossy); + if (lossy) + return FFS_INVALIDPATH; + + fid->size = i_size_read(inode); + + p_dir->dir = fid->start_clu; + p_dir->size = (s32)(fid->size >> p_fs->cluster_size_bits); + p_dir->flags = fid->flags; + + return FFS_SUCCESS; +} + +/* + * File Operation Functions + */ +static struct fs_func fat_fs_func = { + .alloc_cluster = fat_alloc_cluster, + .free_cluster = fat_free_cluster, + .count_used_clusters = fat_count_used_clusters, + + .init_dir_entry = fat_init_dir_entry, + .init_ext_entry = fat_init_ext_entry, + .find_dir_entry = fat_find_dir_entry, + .delete_dir_entry = fat_delete_dir_entry, + .get_uni_name_from_ext_entry = fat_get_uni_name_from_ext_entry, + .count_ext_entries = fat_count_ext_entries, + .calc_num_entries = fat_calc_num_entries, + + .get_entry_type = fat_get_entry_type, + .set_entry_type = fat_set_entry_type, + .get_entry_attr = fat_get_entry_attr, + .set_entry_attr = fat_set_entry_attr, + .get_entry_flag = fat_get_entry_flag, + .set_entry_flag = fat_set_entry_flag, + .get_entry_clu0 = fat_get_entry_clu0, + .set_entry_clu0 = fat_set_entry_clu0, + .get_entry_size = fat_get_entry_size, + .set_entry_size = fat_set_entry_size, + .get_entry_time = fat_get_entry_time, + .set_entry_time = fat_set_entry_time, +}; + +s32 fat16_mount(struct super_block *sb, struct pbr_sector_t *p_pbr) +{ + s32 num_reserved, num_root_sectors; + struct bpb16_t *p_bpb = (struct bpb16_t *)p_pbr->bpb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + if (p_bpb->num_fats == 0) + return FFS_FORMATERR; + + num_root_sectors = GET16(p_bpb->num_root_entries) << DENTRY_SIZE_BITS; + num_root_sectors = ((num_root_sectors - 1) >> + p_bd->sector_size_bits) + 1; + + p_fs->sectors_per_clu = p_bpb->sectors_per_clu; + p_fs->sectors_per_clu_bits = ilog2(p_bpb->sectors_per_clu); + p_fs->cluster_size_bits = p_fs->sectors_per_clu_bits + + p_bd->sector_size_bits; + p_fs->cluster_size = 1 << p_fs->cluster_size_bits; + + p_fs->num_FAT_sectors = GET16(p_bpb->num_fat_sectors); + + p_fs->FAT1_start_sector = p_fs->PBR_sector + GET16(p_bpb->num_reserved); + if (p_bpb->num_fats == 1) + p_fs->FAT2_start_sector = p_fs->FAT1_start_sector; + else + p_fs->FAT2_start_sector = p_fs->FAT1_start_sector + + p_fs->num_FAT_sectors; + + p_fs->root_start_sector = p_fs->FAT2_start_sector + + p_fs->num_FAT_sectors; + p_fs->data_start_sector = p_fs->root_start_sector + num_root_sectors; + + p_fs->num_sectors = GET16(p_bpb->num_sectors); + if (p_fs->num_sectors == 0) + p_fs->num_sectors = GET32(p_bpb->num_huge_sectors); + + num_reserved = p_fs->data_start_sector - p_fs->PBR_sector; + p_fs->num_clusters = ((p_fs->num_sectors - num_reserved) >> + p_fs->sectors_per_clu_bits) + 2; + /* because the cluster index starts with 2 */ + + if (p_fs->num_clusters < FAT12_THRESHOLD) + p_fs->vol_type = FAT12; + else + p_fs->vol_type = FAT16; + p_fs->vol_id = GET32(p_bpb->vol_serial); + + p_fs->root_dir = 0; + p_fs->dentries_in_root = GET16(p_bpb->num_root_entries); + p_fs->dentries_per_clu = 1 << (p_fs->cluster_size_bits - + DENTRY_SIZE_BITS); + + p_fs->vol_flag = VOL_CLEAN; + p_fs->clu_srch_ptr = 2; + p_fs->used_clusters = (u32)~0; + + p_fs->fs_func = &fat_fs_func; + + return FFS_SUCCESS; +} + +s32 fat32_mount(struct super_block *sb, struct pbr_sector_t *p_pbr) +{ + s32 num_reserved; + struct bpb32_t *p_bpb = (struct bpb32_t *)p_pbr->bpb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + if (p_bpb->num_fats == 0) + return FFS_FORMATERR; + + p_fs->sectors_per_clu = p_bpb->sectors_per_clu; + p_fs->sectors_per_clu_bits = ilog2(p_bpb->sectors_per_clu); + p_fs->cluster_size_bits = p_fs->sectors_per_clu_bits + + p_bd->sector_size_bits; + p_fs->cluster_size = 1 << p_fs->cluster_size_bits; + + p_fs->num_FAT_sectors = GET32(p_bpb->num_fat32_sectors); + + p_fs->FAT1_start_sector = p_fs->PBR_sector + GET16(p_bpb->num_reserved); + if (p_bpb->num_fats == 1) + p_fs->FAT2_start_sector = p_fs->FAT1_start_sector; + else + p_fs->FAT2_start_sector = p_fs->FAT1_start_sector + + p_fs->num_FAT_sectors; + + p_fs->root_start_sector = p_fs->FAT2_start_sector + + p_fs->num_FAT_sectors; + p_fs->data_start_sector = p_fs->root_start_sector; + + p_fs->num_sectors = GET32(p_bpb->num_huge_sectors); + num_reserved = p_fs->data_start_sector - p_fs->PBR_sector; + + p_fs->num_clusters = ((p_fs->num_sectors - num_reserved) >> + p_fs->sectors_per_clu_bits) + 2; + /* because the cluster index starts with 2 */ + + p_fs->vol_type = FAT32; + p_fs->vol_id = GET32(p_bpb->vol_serial); + + p_fs->root_dir = GET32(p_bpb->root_cluster); + p_fs->dentries_in_root = 0; + p_fs->dentries_per_clu = 1 << (p_fs->cluster_size_bits - + DENTRY_SIZE_BITS); + + p_fs->vol_flag = VOL_CLEAN; + p_fs->clu_srch_ptr = 2; + p_fs->used_clusters = (u32)~0; + + p_fs->fs_func = &fat_fs_func; + + return FFS_SUCCESS; +} + +static struct fs_func exfat_fs_func = { + .alloc_cluster = exfat_alloc_cluster, + .free_cluster = exfat_free_cluster, + .count_used_clusters = exfat_count_used_clusters, + + .init_dir_entry = exfat_init_dir_entry, + .init_ext_entry = exfat_init_ext_entry, + .find_dir_entry = exfat_find_dir_entry, + .delete_dir_entry = exfat_delete_dir_entry, + .get_uni_name_from_ext_entry = exfat_get_uni_name_from_ext_entry, + .count_ext_entries = exfat_count_ext_entries, + .calc_num_entries = exfat_calc_num_entries, + + .get_entry_type = exfat_get_entry_type, + .set_entry_type = exfat_set_entry_type, + .get_entry_attr = exfat_get_entry_attr, + .set_entry_attr = exfat_set_entry_attr, + .get_entry_flag = exfat_get_entry_flag, + .set_entry_flag = exfat_set_entry_flag, + .get_entry_clu0 = exfat_get_entry_clu0, + .set_entry_clu0 = exfat_set_entry_clu0, + .get_entry_size = exfat_get_entry_size, + .set_entry_size = exfat_set_entry_size, + .get_entry_time = exfat_get_entry_time, + .set_entry_time = exfat_set_entry_time, +}; + +s32 exfat_mount(struct super_block *sb, struct pbr_sector_t *p_pbr) +{ + struct bpbex_t *p_bpb = (struct bpbex_t *)p_pbr->bpb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + if (p_bpb->num_fats == 0) + return FFS_FORMATERR; + + p_fs->sectors_per_clu = 1 << p_bpb->sectors_per_clu_bits; + p_fs->sectors_per_clu_bits = p_bpb->sectors_per_clu_bits; + p_fs->cluster_size_bits = p_fs->sectors_per_clu_bits + + p_bd->sector_size_bits; + p_fs->cluster_size = 1 << p_fs->cluster_size_bits; + + p_fs->num_FAT_sectors = GET32(p_bpb->fat_length); + + p_fs->FAT1_start_sector = p_fs->PBR_sector + GET32(p_bpb->fat_offset); + if (p_bpb->num_fats == 1) + p_fs->FAT2_start_sector = p_fs->FAT1_start_sector; + else + p_fs->FAT2_start_sector = p_fs->FAT1_start_sector + + p_fs->num_FAT_sectors; + + p_fs->root_start_sector = p_fs->PBR_sector + GET32(p_bpb->clu_offset); + p_fs->data_start_sector = p_fs->root_start_sector; + + p_fs->num_sectors = GET64(p_bpb->vol_length); + p_fs->num_clusters = GET32(p_bpb->clu_count) + 2; + /* because the cluster index starts with 2 */ + + p_fs->vol_type = EXFAT; + p_fs->vol_id = GET32(p_bpb->vol_serial); + + p_fs->root_dir = GET32(p_bpb->root_cluster); + p_fs->dentries_in_root = 0; + p_fs->dentries_per_clu = 1 << (p_fs->cluster_size_bits - + DENTRY_SIZE_BITS); + + p_fs->vol_flag = (u32)GET16(p_bpb->vol_flags); + p_fs->clu_srch_ptr = 2; + p_fs->used_clusters = (u32)~0; + + p_fs->fs_func = &exfat_fs_func; + + return FFS_SUCCESS; +} + +s32 create_dir(struct inode *inode, struct chain_t *p_dir, + struct uni_name_t *p_uniname, struct file_id_t *fid) +{ + s32 ret, dentry, num_entries; + u64 size; + struct chain_t clu; + struct dos_name_t dos_name, dot_name; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct fs_func *fs_func = p_fs->fs_func; + + ret = get_num_entries_and_dos_name(sb, p_dir, p_uniname, &num_entries, + &dos_name); + if (ret) + return ret; + + /* find_empty_entry must be called before alloc_cluster */ + dentry = find_empty_entry(inode, p_dir, num_entries); + if (dentry < 0) + return FFS_FULL; + + clu.dir = CLUSTER_32(~0); + clu.size = 0; + clu.flags = (p_fs->vol_type == EXFAT) ? 0x03 : 0x01; + + /* (1) allocate a cluster */ + ret = fs_func->alloc_cluster(sb, 1, &clu); + if (ret < 0) + return FFS_MEDIAERR; + else if (ret == 0) + return FFS_FULL; + + ret = clear_cluster(sb, clu.dir); + if (ret != FFS_SUCCESS) + return ret; + + if (p_fs->vol_type == EXFAT) { + size = p_fs->cluster_size; + } else { + size = 0; + + /* initialize the . and .. entry + * Information for . points to itself + * Information for .. points to parent dir + */ + + dot_name.name_case = 0x0; + memcpy(dot_name.name, DOS_CUR_DIR_NAME, DOS_NAME_LENGTH); + + ret = fs_func->init_dir_entry(sb, &clu, 0, TYPE_DIR, clu.dir, + 0); + if (ret != FFS_SUCCESS) + return ret; + + ret = fs_func->init_ext_entry(sb, &clu, 0, 1, NULL, &dot_name); + if (ret != FFS_SUCCESS) + return ret; + + memcpy(dot_name.name, DOS_PAR_DIR_NAME, DOS_NAME_LENGTH); + + if (p_dir->dir == p_fs->root_dir) + ret = fs_func->init_dir_entry(sb, &clu, 1, TYPE_DIR, + CLUSTER_32(0), 0); + else + ret = fs_func->init_dir_entry(sb, &clu, 1, TYPE_DIR, + p_dir->dir, 0); + + if (ret != FFS_SUCCESS) + return ret; + + ret = p_fs->fs_func->init_ext_entry(sb, &clu, 1, 1, NULL, + &dot_name); + if (ret != FFS_SUCCESS) + return ret; + } + + /* (2) update the directory entry */ + /* make sub-dir entry in parent directory */ + ret = fs_func->init_dir_entry(sb, p_dir, dentry, TYPE_DIR, clu.dir, + size); + if (ret != FFS_SUCCESS) + return ret; + + ret = fs_func->init_ext_entry(sb, p_dir, dentry, num_entries, p_uniname, + &dos_name); + if (ret != FFS_SUCCESS) + return ret; + + fid->dir.dir = p_dir->dir; + fid->dir.size = p_dir->size; + fid->dir.flags = p_dir->flags; + fid->entry = dentry; + + fid->attr = ATTR_SUBDIR; + fid->flags = (p_fs->vol_type == EXFAT) ? 0x03 : 0x01; + fid->size = size; + fid->start_clu = clu.dir; + + fid->type = TYPE_DIR; + fid->rwoffset = 0; + fid->hint_last_off = -1; + + return FFS_SUCCESS; +} + +s32 create_file(struct inode *inode, struct chain_t *p_dir, + struct uni_name_t *p_uniname, u8 mode, struct file_id_t *fid) +{ + s32 ret, dentry, num_entries; + struct dos_name_t dos_name; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct fs_func *fs_func = p_fs->fs_func; + + ret = get_num_entries_and_dos_name(sb, p_dir, p_uniname, &num_entries, + &dos_name); + if (ret) + return ret; + + /* find_empty_entry must be called before alloc_cluster() */ + dentry = find_empty_entry(inode, p_dir, num_entries); + if (dentry < 0) + return FFS_FULL; + + /* (1) update the directory entry */ + /* fill the dos name directory entry information of the created file. + * the first cluster is not determined yet. (0) + */ + ret = fs_func->init_dir_entry(sb, p_dir, dentry, TYPE_FILE | mode, + CLUSTER_32(0), 0); + if (ret != FFS_SUCCESS) + return ret; + + ret = fs_func->init_ext_entry(sb, p_dir, dentry, num_entries, p_uniname, + &dos_name); + if (ret != FFS_SUCCESS) + return ret; + + fid->dir.dir = p_dir->dir; + fid->dir.size = p_dir->size; + fid->dir.flags = p_dir->flags; + fid->entry = dentry; + + fid->attr = ATTR_ARCHIVE | mode; + fid->flags = (p_fs->vol_type == EXFAT) ? 0x03 : 0x01; + fid->size = 0; + fid->start_clu = CLUSTER_32(~0); + + fid->type = TYPE_FILE; + fid->rwoffset = 0; + fid->hint_last_off = -1; + + return FFS_SUCCESS; +} + +void remove_file(struct inode *inode, struct chain_t *p_dir, s32 entry) +{ + s32 num_entries; + sector_t sector; + struct dentry_t *ep; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct fs_func *fs_func = p_fs->fs_func; + + ep = get_entry_in_dir(sb, p_dir, entry, §or); + if (!ep) + return; + + buf_lock(sb, sector); + + /* buf_lock() before call count_ext_entries() */ + num_entries = fs_func->count_ext_entries(sb, p_dir, entry, ep); + if (num_entries < 0) { + buf_unlock(sb, sector); + return; + } + num_entries++; + + buf_unlock(sb, sector); + + /* (1) update the directory entry */ + fs_func->delete_dir_entry(sb, p_dir, entry, 0, num_entries); +} + +s32 rename_file(struct inode *inode, struct chain_t *p_dir, s32 oldentry, + struct uni_name_t *p_uniname, struct file_id_t *fid) +{ + s32 ret, newentry = -1, num_old_entries, num_new_entries; + sector_t sector_old, sector_new; + struct dos_name_t dos_name; + struct dentry_t *epold, *epnew; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct fs_func *fs_func = p_fs->fs_func; + + epold = get_entry_in_dir(sb, p_dir, oldentry, §or_old); + if (!epold) + return FFS_MEDIAERR; + + buf_lock(sb, sector_old); + + /* buf_lock() before call count_ext_entries() */ + num_old_entries = fs_func->count_ext_entries(sb, p_dir, oldentry, + epold); + if (num_old_entries < 0) { + buf_unlock(sb, sector_old); + return FFS_MEDIAERR; + } + num_old_entries++; + + ret = get_num_entries_and_dos_name(sb, p_dir, p_uniname, + &num_new_entries, &dos_name); + if (ret) { + buf_unlock(sb, sector_old); + return ret; + } + + if (num_old_entries < num_new_entries) { + newentry = find_empty_entry(inode, p_dir, num_new_entries); + if (newentry < 0) { + buf_unlock(sb, sector_old); + return FFS_FULL; + } + + epnew = get_entry_in_dir(sb, p_dir, newentry, §or_new); + if (!epnew) { + buf_unlock(sb, sector_old); + return FFS_MEDIAERR; + } + + memcpy((void *)epnew, (void *)epold, DENTRY_SIZE); + if (fs_func->get_entry_type(epnew) == TYPE_FILE) { + fs_func->set_entry_attr(epnew, + fs_func->get_entry_attr(epnew) | + ATTR_ARCHIVE); + fid->attr |= ATTR_ARCHIVE; + } + buf_modify(sb, sector_new); + buf_unlock(sb, sector_old); + + if (p_fs->vol_type == EXFAT) { + epold = get_entry_in_dir(sb, p_dir, oldentry + 1, + §or_old); + buf_lock(sb, sector_old); + epnew = get_entry_in_dir(sb, p_dir, newentry + 1, + §or_new); + + if (!epold || !epnew) { + buf_unlock(sb, sector_old); + return FFS_MEDIAERR; + } + + memcpy((void *)epnew, (void *)epold, DENTRY_SIZE); + buf_modify(sb, sector_new); + buf_unlock(sb, sector_old); + } + + ret = fs_func->init_ext_entry(sb, p_dir, newentry, + num_new_entries, p_uniname, + &dos_name); + if (ret != FFS_SUCCESS) + return ret; + + fs_func->delete_dir_entry(sb, p_dir, oldentry, 0, + num_old_entries); + fid->entry = newentry; + } else { + if (fs_func->get_entry_type(epold) == TYPE_FILE) { + fs_func->set_entry_attr(epold, + fs_func->get_entry_attr(epold) | + ATTR_ARCHIVE); + fid->attr |= ATTR_ARCHIVE; + } + buf_modify(sb, sector_old); + buf_unlock(sb, sector_old); + + ret = fs_func->init_ext_entry(sb, p_dir, oldentry, + num_new_entries, p_uniname, + &dos_name); + if (ret != FFS_SUCCESS) + return ret; + + fs_func->delete_dir_entry(sb, p_dir, oldentry, num_new_entries, + num_old_entries); + } + + return FFS_SUCCESS; +} + +s32 move_file(struct inode *inode, struct chain_t *p_olddir, s32 oldentry, + struct chain_t *p_newdir, struct uni_name_t *p_uniname, + struct file_id_t *fid) +{ + s32 ret, newentry, num_new_entries, num_old_entries; + sector_t sector_mov, sector_new; + struct chain_t clu; + struct dos_name_t dos_name; + struct dentry_t *epmov, *epnew; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct fs_func *fs_func = p_fs->fs_func; + + epmov = get_entry_in_dir(sb, p_olddir, oldentry, §or_mov); + if (!epmov) + return FFS_MEDIAERR; + + /* check if the source and target directory is the same */ + if (fs_func->get_entry_type(epmov) == TYPE_DIR && + fs_func->get_entry_clu0(epmov) == p_newdir->dir) + return FFS_INVALIDPATH; + + buf_lock(sb, sector_mov); + + /* buf_lock() before call count_ext_entries() */ + num_old_entries = fs_func->count_ext_entries(sb, p_olddir, oldentry, + epmov); + if (num_old_entries < 0) { + buf_unlock(sb, sector_mov); + return FFS_MEDIAERR; + } + num_old_entries++; + + ret = get_num_entries_and_dos_name(sb, p_newdir, p_uniname, + &num_new_entries, &dos_name); + if (ret) { + buf_unlock(sb, sector_mov); + return ret; + } + + newentry = find_empty_entry(inode, p_newdir, num_new_entries); + if (newentry < 0) { + buf_unlock(sb, sector_mov); + return FFS_FULL; + } + + epnew = get_entry_in_dir(sb, p_newdir, newentry, §or_new); + if (!epnew) { + buf_unlock(sb, sector_mov); + return FFS_MEDIAERR; + } + + memcpy((void *)epnew, (void *)epmov, DENTRY_SIZE); + if (fs_func->get_entry_type(epnew) == TYPE_FILE) { + fs_func->set_entry_attr(epnew, fs_func->get_entry_attr(epnew) | + ATTR_ARCHIVE); + fid->attr |= ATTR_ARCHIVE; + } + buf_modify(sb, sector_new); + buf_unlock(sb, sector_mov); + + if (p_fs->vol_type == EXFAT) { + epmov = get_entry_in_dir(sb, p_olddir, oldentry + 1, + §or_mov); + buf_lock(sb, sector_mov); + epnew = get_entry_in_dir(sb, p_newdir, newentry + 1, + §or_new); + if (!epmov || !epnew) { + buf_unlock(sb, sector_mov); + return FFS_MEDIAERR; + } + + memcpy((void *)epnew, (void *)epmov, DENTRY_SIZE); + buf_modify(sb, sector_new); + buf_unlock(sb, sector_mov); + } else if (fs_func->get_entry_type(epnew) == TYPE_DIR) { + /* change ".." pointer to new parent dir */ + clu.dir = fs_func->get_entry_clu0(epnew); + clu.flags = 0x01; + + epnew = get_entry_in_dir(sb, &clu, 1, §or_new); + if (!epnew) + return FFS_MEDIAERR; + + if (p_newdir->dir == p_fs->root_dir) + fs_func->set_entry_clu0(epnew, CLUSTER_32(0)); + else + fs_func->set_entry_clu0(epnew, p_newdir->dir); + buf_modify(sb, sector_new); + } + + ret = fs_func->init_ext_entry(sb, p_newdir, newentry, num_new_entries, + p_uniname, &dos_name); + if (ret != FFS_SUCCESS) + return ret; + + fs_func->delete_dir_entry(sb, p_olddir, oldentry, 0, num_old_entries); + + fid->dir.dir = p_newdir->dir; + fid->dir.size = p_newdir->size; + fid->dir.flags = p_newdir->flags; + + fid->entry = newentry; + + return FFS_SUCCESS; +} + +/* + * Sector Read/Write Functions + */ + +int sector_read(struct super_block *sb, sector_t sec, struct buffer_head **bh, + bool read) +{ + s32 ret = FFS_MEDIAERR; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if ((sec >= (p_fs->PBR_sector + p_fs->num_sectors)) && + (p_fs->num_sectors > 0)) { + pr_err("[EXFAT] %s: out of range error! (sec = %llu)\n", + __func__, (unsigned long long)sec); + fs_error(sb); + return ret; + } + + if (!p_fs->dev_ejected) { + ret = bdev_read(sb, sec, bh, 1, read); + if (ret != FFS_SUCCESS) + p_fs->dev_ejected = 1; + } + + return ret; +} + +int sector_write(struct super_block *sb, sector_t sec, struct buffer_head *bh, + bool sync) +{ + s32 ret = FFS_MEDIAERR; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if (sec >= (p_fs->PBR_sector + p_fs->num_sectors) && + (p_fs->num_sectors > 0)) { + pr_err("[EXFAT] %s: out of range error! (sec = %llu)\n", + __func__, (unsigned long long)sec); + fs_error(sb); + return ret; + } + + if (!bh) { + pr_err("[EXFAT] %s: bh is NULL!\n", __func__); + fs_error(sb); + return ret; + } + + if (!p_fs->dev_ejected) { + ret = bdev_write(sb, sec, bh, 1, sync); + if (ret != FFS_SUCCESS) + p_fs->dev_ejected = 1; + } + + return ret; +} + +int multi_sector_read(struct super_block *sb, sector_t sec, + struct buffer_head **bh, s32 num_secs, bool read) +{ + s32 ret = FFS_MEDIAERR; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if (((sec + num_secs) > (p_fs->PBR_sector + p_fs->num_sectors)) && + (p_fs->num_sectors > 0)) { + pr_err("[EXFAT] %s: out of range error! (sec = %llu, num_secs = %d)\n", + __func__, (unsigned long long)sec, num_secs); + fs_error(sb); + return ret; + } + + if (!p_fs->dev_ejected) { + ret = bdev_read(sb, sec, bh, num_secs, read); + if (ret != FFS_SUCCESS) + p_fs->dev_ejected = 1; + } + + return ret; +} + +int multi_sector_write(struct super_block *sb, sector_t sec, + struct buffer_head *bh, s32 num_secs, bool sync) +{ + s32 ret = FFS_MEDIAERR; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if ((sec + num_secs) > (p_fs->PBR_sector + p_fs->num_sectors) && + (p_fs->num_sectors > 0)) { + pr_err("[EXFAT] %s: out of range error! (sec = %llu, num_secs = %d)\n", + __func__, (unsigned long long)sec, num_secs); + fs_error(sb); + return ret; + } + if (!bh) { + pr_err("[EXFAT] %s: bh is NULL!\n", __func__); + fs_error(sb); + return ret; + } + + if (!p_fs->dev_ejected) { + ret = bdev_write(sb, sec, bh, num_secs, sync); + if (ret != FFS_SUCCESS) + p_fs->dev_ejected = 1; + } + + return ret; +} diff --git a/drivers/staging/exfat/exfat_nls.c b/drivers/staging/exfat/exfat_nls.c new file mode 100644 index 000000000000..03cb8290b5d2 --- /dev/null +++ b/drivers/staging/exfat/exfat_nls.c @@ -0,0 +1,404 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2012-2013 Samsung Electronics Co., Ltd. + */ + +#include <linux/string.h> +#include <linux/nls.h> +#include "exfat.h" + +static u16 bad_dos_chars[] = { + /* + , ; = [ ] */ + 0x002B, 0x002C, 0x003B, 0x003D, 0x005B, 0x005D, + 0xFF0B, 0xFF0C, 0xFF1B, 0xFF1D, 0xFF3B, 0xFF3D, + 0 +}; + +static u16 bad_uni_chars[] = { + /* " * / : < > ? \ | */ + 0x0022, 0x002A, 0x002F, 0x003A, + 0x003C, 0x003E, 0x003F, 0x005C, 0x007C, + 0 +}; + +static int convert_ch_to_uni(struct nls_table *nls, u16 *uni, u8 *ch, + bool *lossy) +{ + int len; + + *uni = 0x0; + + if (ch[0] < 0x80) { + *uni = (u16)ch[0]; + return 1; + } + + len = nls->char2uni(ch, NLS_MAX_CHARSET_SIZE, uni); + if (len < 0) { + /* conversion failed */ + pr_info("%s: fail to use nls\n", __func__); + if (lossy) + *lossy = true; + *uni = (u16)'_'; + if (!strcmp(nls->charset, "utf8")) + return 1; + else + return 2; + } + + return len; +} + +static int convert_uni_to_ch(struct nls_table *nls, u8 *ch, u16 uni, + bool *lossy) +{ + int len; + + ch[0] = 0x0; + + if (uni < 0x0080) { + ch[0] = (u8)uni; + return 1; + } + + len = nls->uni2char(uni, ch, NLS_MAX_CHARSET_SIZE); + if (len < 0) { + /* conversion failed */ + pr_info("%s: fail to use nls\n", __func__); + if (lossy) + *lossy = true; + ch[0] = '_'; + return 1; + } + + return len; +} + +u16 nls_upper(struct super_block *sb, u16 a) +{ + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + if (EXFAT_SB(sb)->options.casesensitive) + return a; + if (p_fs->vol_utbl && p_fs->vol_utbl[get_col_index(a)]) + return p_fs->vol_utbl[get_col_index(a)][get_row_index(a)]; + else + return a; +} + +static u16 *nls_wstrchr(u16 *str, u16 wchar) +{ + while (*str) { + if (*(str++) == wchar) + return str; + } + + return NULL; +} + +int nls_dosname_cmp(struct super_block *sb, u8 *a, u8 *b) +{ + return strncmp(a, b, DOS_NAME_LENGTH); +} + +int nls_uniname_cmp(struct super_block *sb, u16 *a, u16 *b) +{ + int i; + + for (i = 0; i < MAX_NAME_LENGTH; i++, a++, b++) { + if (nls_upper(sb, *a) != nls_upper(sb, *b)) + return 1; + if (*a == 0x0) + return 0; + } + return 0; +} + +void nls_uniname_to_dosname(struct super_block *sb, + struct dos_name_t *p_dosname, + struct uni_name_t *p_uniname, bool *p_lossy) +{ + int i, j, len; + bool lossy = false; + u8 buf[MAX_CHARSET_SIZE]; + u8 lower = 0, upper = 0; + u8 *dosname = p_dosname->name; + u16 *uniname = p_uniname->name; + u16 *p, *last_period; + struct nls_table *nls = EXFAT_SB(sb)->nls_disk; + + for (i = 0; i < DOS_NAME_LENGTH; i++) + *(dosname + i) = ' '; + + if (!nls_uniname_cmp(sb, uniname, (u16 *)UNI_CUR_DIR_NAME)) { + *(dosname) = '.'; + p_dosname->name_case = 0x0; + if (p_lossy) + *p_lossy = false; + return; + } + + if (!nls_uniname_cmp(sb, uniname, (u16 *)UNI_PAR_DIR_NAME)) { + *(dosname) = '.'; + *(dosname + 1) = '.'; + p_dosname->name_case = 0x0; + if (p_lossy) + *p_lossy = false; + return; + } + + /* search for the last embedded period */ + last_period = NULL; + for (p = uniname; *p; p++) { + if (*p == (u16)'.') + last_period = p; + } + + i = 0; + while (i < DOS_NAME_LENGTH) { + if (i == 8) { + if (!last_period) + break; + + if (uniname <= last_period) { + if (uniname < last_period) + lossy = true; + uniname = last_period + 1; + } + } + + if (*uniname == (u16)'\0') { + break; + } else if (*uniname == (u16)' ') { + lossy = true; + } else if (*uniname == (u16)'.') { + if (uniname < last_period) + lossy = true; + else + i = 8; + } else if (nls_wstrchr(bad_dos_chars, *uniname)) { + lossy = true; + *(dosname + i) = '_'; + i++; + } else { + len = convert_uni_to_ch(nls, buf, *uniname, &lossy); + + if (len > 1) { + if ((i >= 8) && ((i + len) > DOS_NAME_LENGTH)) + break; + + if ((i < 8) && ((i + len) > 8)) { + i = 8; + continue; + } + + lower = 0xFF; + + for (j = 0; j < len; j++, i++) + *(dosname + i) = *(buf + j); + } else { /* len == 1 */ + if ((*buf >= 'a') && (*buf <= 'z')) { + *(dosname + i) = *buf - ('a' - 'A'); + + if (i < 8) + lower |= 0x08; + else + lower |= 0x10; + } else if ((*buf >= 'A') && (*buf <= 'Z')) { + *(dosname + i) = *buf; + + if (i < 8) + upper |= 0x08; + else + upper |= 0x10; + } else { + *(dosname + i) = *buf; + } + i++; + } + } + + uniname++; + } + + if (*dosname == 0xE5) + *dosname = 0x05; + + if (*uniname != 0x0) + lossy = true; + + if (upper & lower) + p_dosname->name_case = 0xFF; + else + p_dosname->name_case = lower; + + if (p_lossy) + *p_lossy = lossy; +} + +void nls_dosname_to_uniname(struct super_block *sb, + struct uni_name_t *p_uniname, + struct dos_name_t *p_dosname) +{ + int i = 0, j, n = 0; + u8 buf[DOS_NAME_LENGTH + 2]; + u8 *dosname = p_dosname->name; + u16 *uniname = p_uniname->name; + struct nls_table *nls = EXFAT_SB(sb)->nls_disk; + + if (*dosname == 0x05) { + *buf = 0xE5; + i++; + n++; + } + + for (; i < 8; i++, n++) { + if (*(dosname + i) == ' ') + break; + + if ((*(dosname + i) >= 'A') && (*(dosname + i) <= 'Z') && + (p_dosname->name_case & 0x08)) + *(buf + n) = *(dosname + i) + ('a' - 'A'); + else + *(buf + n) = *(dosname + i); + } + if (*(dosname + 8) != ' ') { + *(buf + n) = '.'; + n++; + } + + for (i = 8; i < DOS_NAME_LENGTH; i++, n++) { + if (*(dosname + i) == ' ') + break; + + if ((*(dosname + i) >= 'A') && (*(dosname + i) <= 'Z') && + (p_dosname->name_case & 0x10)) + *(buf + n) = *(dosname + i) + ('a' - 'A'); + else + *(buf + n) = *(dosname + i); + } + *(buf + n) = '\0'; + + i = 0; + j = 0; + while (j < (MAX_NAME_LENGTH - 1)) { + if (*(buf + i) == '\0') + break; + + i += convert_ch_to_uni(nls, uniname, (buf + i), NULL); + + uniname++; + j++; + } + + *uniname = (u16)'\0'; +} + +void nls_uniname_to_cstring(struct super_block *sb, u8 *p_cstring, + struct uni_name_t *p_uniname) +{ + int i, j, len; + u8 buf[MAX_CHARSET_SIZE]; + u16 *uniname = p_uniname->name; + struct nls_table *nls = EXFAT_SB(sb)->nls_io; + + if (!nls) { + len = utf16s_to_utf8s(uniname, MAX_NAME_LENGTH, + UTF16_HOST_ENDIAN, p_cstring, + MAX_NAME_LENGTH); + p_cstring[len] = 0; + return; + } + + i = 0; + while (i < (MAX_NAME_LENGTH - 1)) { + if (*uniname == (u16)'\0') + break; + + len = convert_uni_to_ch(nls, buf, *uniname, NULL); + + if (len > 1) { + for (j = 0; j < len; j++) + *p_cstring++ = (char)*(buf + j); + } else { /* len == 1 */ + *p_cstring++ = (char)*buf; + } + + uniname++; + i++; + } + + *p_cstring = '\0'; +} + +void nls_cstring_to_uniname(struct super_block *sb, + struct uni_name_t *p_uniname, u8 *p_cstring, + bool *p_lossy) +{ + int i, j; + bool lossy = false; + u8 *end_of_name; + u8 upname[MAX_NAME_LENGTH * 2]; + u16 *uniname = p_uniname->name; + struct nls_table *nls = EXFAT_SB(sb)->nls_io; + + /* strip all trailing spaces */ + end_of_name = p_cstring + strlen(p_cstring); + + while (*(--end_of_name) == ' ') { + if (end_of_name < p_cstring) + break; + } + *(++end_of_name) = '\0'; + + if (strcmp(p_cstring, ".") && strcmp(p_cstring, "..")) { + /* strip all trailing periods */ + while (*(--end_of_name) == '.') { + if (end_of_name < p_cstring) + break; + } + *(++end_of_name) = '\0'; + } + + if (*p_cstring == '\0') + lossy = true; + + if (!nls) { + i = utf8s_to_utf16s(p_cstring, MAX_NAME_LENGTH, + UTF16_HOST_ENDIAN, uniname, + MAX_NAME_LENGTH); + for (j = 0; j < i; j++) + SET16_A(upname + j * 2, nls_upper(sb, uniname[j])); + uniname[i] = '\0'; + } else { + i = 0; + j = 0; + while (j < (MAX_NAME_LENGTH - 1)) { + if (*(p_cstring + i) == '\0') + break; + + i += convert_ch_to_uni(nls, uniname, + (u8 *)(p_cstring + i), &lossy); + + if ((*uniname < 0x0020) || + nls_wstrchr(bad_uni_chars, *uniname)) + lossy = true; + + SET16_A(upname + j * 2, nls_upper(sb, *uniname)); + + uniname++; + j++; + } + + if (*(p_cstring + i) != '\0') + lossy = true; + *uniname = (u16)'\0'; + } + + p_uniname->name_len = j; + p_uniname->name_hash = calc_checksum_2byte(upname, j << 1, 0, + CS_DEFAULT); + + if (p_lossy) + *p_lossy = lossy; +} diff --git a/drivers/staging/exfat/exfat_super.c b/drivers/staging/exfat/exfat_super.c new file mode 100644 index 000000000000..280bf0d1cf0b --- /dev/null +++ b/drivers/staging/exfat/exfat_super.c @@ -0,0 +1,4146 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2012-2013 Samsung Electronics Co., Ltd. + */ + +#include <linux/version.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/time.h> +#include <linux/slab.h> +#include <linux/seq_file.h> +#include <linux/pagemap.h> +#include <linux/mpage.h> +#include <linux/buffer_head.h> +#include <linux/exportfs.h> +#include <linux/mount.h> +#include <linux/vfs.h> +#include <linux/aio.h> +#include <linux/iversion.h> +#include <linux/parser.h> +#include <linux/uio.h> +#include <linux/writeback.h> +#include <linux/log2.h> +#include <linux/hash.h> +#include <linux/backing-dev.h> +#include <linux/sched.h> +#include <linux/fs_struct.h> +#include <linux/namei.h> +#include <linux/time.h> + +#include <linux/string.h> +#include <linux/nls.h> +#include <linux/mutex.h> +#include <linux/swap.h> + +#define EXFAT_VERSION "1.3.0" + +#include "exfat.h" + +static struct kmem_cache *exfat_inode_cachep; + +// FIXME use commented lines +// static int exfat_default_codepage = CONFIG_EXFAT_DEFAULT_CODEPAGE; +// static char exfat_default_iocharset[] = CONFIG_EXFAT_DEFAULT_IOCHARSET; +static int exfat_default_codepage = CONFIG_FAT_DEFAULT_CODEPAGE; +static char exfat_default_iocharset[] = CONFIG_FAT_DEFAULT_IOCHARSET; + +#define INC_IVERSION(x) (inode_inc_iversion(x)) +#define GET_IVERSION(x) (inode_peek_iversion_raw(x)) +#define SET_IVERSION(x, y) (inode_set_iversion(x, y)) + +static struct inode *exfat_iget(struct super_block *sb, loff_t i_pos); +static int exfat_sync_inode(struct inode *inode); +static struct inode *exfat_build_inode(struct super_block *sb, + struct file_id_t *fid, loff_t i_pos); +static int exfat_write_inode(struct inode *inode, + struct writeback_control *wbc); +static void exfat_write_super(struct super_block *sb); + +#define UNIX_SECS_1980 315532800L + +#if BITS_PER_LONG == 64 +#define UNIX_SECS_2108 4354819200L +#endif + +/* days between 1.1.70 and 1.1.80 (2 leap days) */ +#define DAYS_DELTA_DECADE (365 * 10 + 2) +/* 120 (2100 - 1980) isn't leap year */ +#define NO_LEAP_YEAR_2100 (120) +#define IS_LEAP_YEAR(y) (!((y) & 0x3) && (y) != NO_LEAP_YEAR_2100) + +#define SECS_PER_MIN (60) +#define SECS_PER_HOUR (60 * SECS_PER_MIN) +#define SECS_PER_DAY (24 * SECS_PER_HOUR) + +#define MAKE_LEAP_YEAR(leap_year, year) \ + do { \ + if (unlikely(year > NO_LEAP_YEAR_2100)) \ + leap_year = ((year + 3) / 4) - 1; \ + else \ + leap_year = ((year + 3) / 4); \ + } while (0) + +/* Linear day numbers of the respective 1sts in non-leap years. */ +static time_t accum_days_in_year[] = { + /* Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec */ + 0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 0, 0, 0, +}; + +/* Convert a FAT time/date pair to a UNIX date (seconds since 1 1 70). */ +static void exfat_time_fat2unix(struct exfat_sb_info *sbi, + struct timespec64 *ts, struct date_time_t *tp) +{ + time_t year = tp->Year; + time_t ld; + + MAKE_LEAP_YEAR(ld, year); + + if (IS_LEAP_YEAR(year) && (tp->Month) > 2) + ld++; + + ts->tv_sec = tp->Second + + tp->Minute * SECS_PER_MIN + + tp->Hour * SECS_PER_HOUR + + (ld + accum_days_in_year[(tp->Month)] + + (tp->Day - 1)) * SECS_PER_DAY + + (year * 365 + DAYS_DELTA_DECADE) * SECS_PER_DAY + + sys_tz.tz_minuteswest * SECS_PER_MIN; + + ts->tv_nsec = 0; +} + +/* Convert linear UNIX date to a FAT time/date pair. */ +static void exfat_time_unix2fat(struct exfat_sb_info *sbi, + struct timespec64 *ts, struct date_time_t *tp) +{ + time_t second = ts->tv_sec; + time_t day, month, year; + time_t ld; + + second -= sys_tz.tz_minuteswest * SECS_PER_MIN; + + /* Jan 1 GMT 00:00:00 1980. But what about another time zone? */ + if (second < UNIX_SECS_1980) { + tp->Second = 0; + tp->Minute = 0; + tp->Hour = 0; + tp->Day = 1; + tp->Month = 1; + tp->Year = 0; + return; + } +#if (BITS_PER_LONG == 64) + if (second >= UNIX_SECS_2108) { + tp->Second = 59; + tp->Minute = 59; + tp->Hour = 23; + tp->Day = 31; + tp->Month = 12; + tp->Year = 127; + return; + } +#endif + day = second / SECS_PER_DAY - DAYS_DELTA_DECADE; + year = day / 365; + MAKE_LEAP_YEAR(ld, year); + if (year * 365 + ld > day) + year--; + + MAKE_LEAP_YEAR(ld, year); + day -= year * 365 + ld; + + if (IS_LEAP_YEAR(year) && day == accum_days_in_year[3]) { + month = 2; + } else { + if (IS_LEAP_YEAR(year) && day > accum_days_in_year[3]) + day--; + for (month = 1; month < 12; month++) { + if (accum_days_in_year[month + 1] > day) + break; + } + } + day -= accum_days_in_year[month]; + + tp->Second = second % SECS_PER_MIN; + tp->Minute = (second / SECS_PER_MIN) % 60; + tp->Hour = (second / SECS_PER_HOUR) % 24; + tp->Day = day + 1; + tp->Month = month; + tp->Year = year; +} + +struct timestamp_t *tm_current(struct timestamp_t *tp) +{ + struct timespec64 ts; + time_t second, day, leap_day, month, year; + + ktime_get_real_ts64(&ts); + + second = ts.tv_sec; + second -= sys_tz.tz_minuteswest * SECS_PER_MIN; + + /* Jan 1 GMT 00:00:00 1980. But what about another time zone? */ + if (second < UNIX_SECS_1980) { + tp->sec = 0; + tp->min = 0; + tp->hour = 0; + tp->day = 1; + tp->mon = 1; + tp->year = 0; + return tp; + } +#if BITS_PER_LONG == 64 + if (second >= UNIX_SECS_2108) { + tp->sec = 59; + tp->min = 59; + tp->hour = 23; + tp->day = 31; + tp->mon = 12; + tp->year = 127; + return tp; + } +#endif + + day = second / SECS_PER_DAY - DAYS_DELTA_DECADE; + year = day / 365; + + MAKE_LEAP_YEAR(leap_day, year); + if (year * 365 + leap_day > day) + year--; + + MAKE_LEAP_YEAR(leap_day, year); + + day -= year * 365 + leap_day; + + if (IS_LEAP_YEAR(year) && day == accum_days_in_year[3]) { + month = 2; + } else { + if (IS_LEAP_YEAR(year) && day > accum_days_in_year[3]) + day--; + for (month = 1; month < 12; month++) { + if (accum_days_in_year[month + 1] > day) + break; + } + } + day -= accum_days_in_year[month]; + + tp->sec = second % SECS_PER_MIN; + tp->min = (second / SECS_PER_MIN) % 60; + tp->hour = (second / SECS_PER_HOUR) % 24; + tp->day = day + 1; + tp->mon = month; + tp->year = year; + + return tp; +} + +static void __lock_super(struct super_block *sb) +{ + struct exfat_sb_info *sbi = EXFAT_SB(sb); + + mutex_lock(&sbi->s_lock); +} + +static void __unlock_super(struct super_block *sb) +{ + struct exfat_sb_info *sbi = EXFAT_SB(sb); + + mutex_unlock(&sbi->s_lock); +} + +static int __is_sb_dirty(struct super_block *sb) +{ + struct exfat_sb_info *sbi = EXFAT_SB(sb); + + return sbi->s_dirt; +} + +static void __set_sb_clean(struct super_block *sb) +{ + struct exfat_sb_info *sbi = EXFAT_SB(sb); + + sbi->s_dirt = 0; +} + +static int __exfat_revalidate(struct dentry *dentry) +{ + return 0; +} + +static int exfat_revalidate(struct dentry *dentry, unsigned int flags) +{ + if (flags & LOOKUP_RCU) + return -ECHILD; + + if (dentry->d_inode) + return 1; + return __exfat_revalidate(dentry); +} + +static int exfat_revalidate_ci(struct dentry *dentry, unsigned int flags) +{ + if (flags & LOOKUP_RCU) + return -ECHILD; + + if (dentry->d_inode) + return 1; + + if (!flags) + return 0; + + if (flags & (LOOKUP_CREATE | LOOKUP_RENAME_TARGET)) + return 0; + + return __exfat_revalidate(dentry); +} + +static unsigned int __exfat_striptail_len(unsigned int len, const char *name) +{ + while (len && name[len - 1] == '.') + len--; + return len; +} + +static unsigned int exfat_striptail_len(const struct qstr *qstr) +{ + return __exfat_striptail_len(qstr->len, qstr->name); +} + +static int exfat_d_hash(const struct dentry *dentry, struct qstr *qstr) +{ + qstr->hash = full_name_hash(dentry, qstr->name, + exfat_striptail_len(qstr)); + return 0; +} + +static int exfat_d_hashi(const struct dentry *dentry, struct qstr *qstr) +{ + struct super_block *sb = dentry->d_sb; + const unsigned char *name; + unsigned int len; + unsigned long hash; + + name = qstr->name; + len = exfat_striptail_len(qstr); + + hash = init_name_hash(dentry); + while (len--) + hash = partial_name_hash(nls_upper(sb, *name++), hash); + qstr->hash = end_name_hash(hash); + + return 0; +} + +static int exfat_cmpi(const struct dentry *dentry, unsigned int len, + const char *str, const struct qstr *name) +{ + struct nls_table *t = EXFAT_SB(dentry->d_sb)->nls_io; + unsigned int alen, blen; + + alen = exfat_striptail_len(name); + blen = __exfat_striptail_len(len, str); + if (alen == blen) { + if (t == NULL) { + if (strncasecmp(name->name, str, alen) == 0) + return 0; + } else { + if (nls_strnicmp(t, name->name, str, alen) == 0) + return 0; + } + } + return 1; +} + +static int exfat_cmp(const struct dentry *dentry, unsigned int len, + const char *str, const struct qstr *name) +{ + unsigned int alen, blen; + + alen = exfat_striptail_len(name); + blen = __exfat_striptail_len(len, str); + if (alen == blen) { + if (strncmp(name->name, str, alen) == 0) + return 0; + } + return 1; +} + +static const struct dentry_operations exfat_ci_dentry_ops = { + .d_revalidate = exfat_revalidate_ci, + .d_hash = exfat_d_hashi, + .d_compare = exfat_cmpi, +}; + +static const struct dentry_operations exfat_dentry_ops = { + .d_revalidate = exfat_revalidate, + .d_hash = exfat_d_hash, + .d_compare = exfat_cmp, +}; + +static DEFINE_SEMAPHORE(z_sem); + +static inline void fs_sync(struct super_block *sb, bool do_sync) +{ + if (do_sync) + bdev_sync(sb); +} + +/* + * If ->i_mode can't hold S_IWUGO (i.e. ATTR_RO), we use ->i_attrs to + * save ATTR_RO instead of ->i_mode. + * + * If it's directory and !sbi->options.rodir, ATTR_RO isn't read-only + * bit, it's just used as flag for app. + */ +static inline int exfat_mode_can_hold_ro(struct inode *inode) +{ + struct exfat_sb_info *sbi = EXFAT_SB(inode->i_sb); + + if (S_ISDIR(inode->i_mode)) + return 0; + + if ((~sbi->options.fs_fmask) & 0222) + return 1; + return 0; +} + +/* Convert attribute bits and a mask to the UNIX mode. */ +static inline mode_t exfat_make_mode(struct exfat_sb_info *sbi, u32 attr, + mode_t mode) +{ + if ((attr & ATTR_READONLY) && !(attr & ATTR_SUBDIR)) + mode &= ~0222; + + if (attr & ATTR_SUBDIR) + return (mode & ~sbi->options.fs_dmask) | S_IFDIR; + else if (attr & ATTR_SYMLINK) + return (mode & ~sbi->options.fs_dmask) | S_IFLNK; + else + return (mode & ~sbi->options.fs_fmask) | S_IFREG; +} + +/* Return the FAT attribute byte for this inode */ +static inline u32 exfat_make_attr(struct inode *inode) +{ + if (exfat_mode_can_hold_ro(inode) && !(inode->i_mode & 0222)) + return (EXFAT_I(inode)->fid.attr) | ATTR_READONLY; + else + return EXFAT_I(inode)->fid.attr; +} + +static inline void exfat_save_attr(struct inode *inode, u32 attr) +{ + if (exfat_mode_can_hold_ro(inode)) + EXFAT_I(inode)->fid.attr = attr & ATTR_RWMASK; + else + EXFAT_I(inode)->fid.attr = attr & (ATTR_RWMASK | ATTR_READONLY); +} + +static int ffsMountVol(struct super_block *sb) +{ + int i, ret; + struct pbr_sector_t *p_pbr; + struct buffer_head *tmp_bh = NULL; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + pr_info("[EXFAT] trying to mount...\n"); + + down(&z_sem); + + buf_init(sb); + + sema_init(&p_fs->v_sem, 1); + p_fs->dev_ejected = 0; + + /* open the block device */ + bdev_open(sb); + + if (p_bd->sector_size < sb->s_blocksize) { + ret = FFS_MEDIAERR; + goto out; + } + if (p_bd->sector_size > sb->s_blocksize) + sb_set_blocksize(sb, p_bd->sector_size); + + /* read Sector 0 */ + if (sector_read(sb, 0, &tmp_bh, 1) != FFS_SUCCESS) { + ret = FFS_MEDIAERR; + goto out; + } + + p_fs->PBR_sector = 0; + + p_pbr = (struct pbr_sector_t *) tmp_bh->b_data; + + /* check the validity of PBR */ + if (GET16_A(p_pbr->signature) != PBR_SIGNATURE) { + brelse(tmp_bh); + bdev_close(sb); + ret = FFS_FORMATERR; + goto out; + } + + /* fill fs_struct */ + for (i = 0; i < 53; i++) + if (p_pbr->bpb[i]) + break; + + if (i < 53) { +#ifdef CONFIG_EXFAT_DONT_MOUNT_VFAT + ret = -EINVAL; + printk(KERN_INFO "EXFAT: Attempted to mount VFAT filesystem\n"); + goto out; +#else + if (GET16(p_pbr->bpb + 11)) /* num_fat_sectors */ + ret = fat16_mount(sb, p_pbr); + else + ret = fat32_mount(sb, p_pbr); +#endif + } else { + ret = exfat_mount(sb, p_pbr); + } + + brelse(tmp_bh); + + if (ret) { + bdev_close(sb); + goto out; + } + + if (p_fs->vol_type == EXFAT) { + ret = load_alloc_bitmap(sb); + if (ret) { + bdev_close(sb); + goto out; + } + ret = load_upcase_table(sb); + if (ret) { + free_alloc_bitmap(sb); + bdev_close(sb); + goto out; + } + } + + if (p_fs->dev_ejected) { + if (p_fs->vol_type == EXFAT) { + free_upcase_table(sb); + free_alloc_bitmap(sb); + } + bdev_close(sb); + ret = FFS_MEDIAERR; + goto out; + } + + pr_info("[EXFAT] mounted successfully\n"); + +out: + up(&z_sem); + + return ret; +} + +static int ffsUmountVol(struct super_block *sb) +{ + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + int err = FFS_SUCCESS; + + pr_info("[EXFAT] trying to unmount...\n"); + + down(&z_sem); + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + fs_sync(sb, false); + fs_set_vol_flags(sb, VOL_CLEAN); + + if (p_fs->vol_type == EXFAT) { + free_upcase_table(sb); + free_alloc_bitmap(sb); + } + + FAT_release_all(sb); + buf_release_all(sb); + + /* close the block device */ + bdev_close(sb); + + if (p_fs->dev_ejected) { + pr_info("[EXFAT] unmounted with media errors. Device is already ejected.\n"); + err = FFS_MEDIAERR; + } + + buf_shutdown(sb); + + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + up(&z_sem); + + pr_info("[EXFAT] unmounted successfully\n"); + + return err; +} + +static int ffsGetVolInfo(struct super_block *sb, struct vol_info_t *info) +{ + int err = FFS_SUCCESS; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + /* check the validity of pointer parameters */ + if (info == NULL) + return FFS_ERROR; + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + if (p_fs->used_clusters == (u32) ~0) + p_fs->used_clusters = p_fs->fs_func->count_used_clusters(sb); + + info->FatType = p_fs->vol_type; + info->ClusterSize = p_fs->cluster_size; + info->NumClusters = p_fs->num_clusters - 2; /* clu 0 & 1 */ + info->UsedClusters = p_fs->used_clusters; + info->FreeClusters = info->NumClusters - info->UsedClusters; + + if (p_fs->dev_ejected) + err = FFS_MEDIAERR; + + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return err; +} + +static int ffsSyncVol(struct super_block *sb, bool do_sync) +{ + int err = FFS_SUCCESS; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + /* synchronize the file system */ + fs_sync(sb, do_sync); + fs_set_vol_flags(sb, VOL_CLEAN); + + if (p_fs->dev_ejected) + err = FFS_MEDIAERR; + + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return err; +} + +/*----------------------------------------------------------------------*/ +/* File Operation Functions */ +/*----------------------------------------------------------------------*/ + +static int ffsLookupFile(struct inode *inode, char *path, struct file_id_t *fid) +{ + int ret, dentry, num_entries; + struct chain_t dir; + struct uni_name_t uni_name; + struct dos_name_t dos_name; + struct dentry_t *ep, *ep2; + struct entry_set_cache_t *es = NULL; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + pr_debug("%s entered\n", __func__); + + /* check the validity of pointer parameters */ + if ((fid == NULL) || (path == NULL) || (*path == '\0')) + return FFS_ERROR; + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + /* check the validity of directory name in the given pathname */ + ret = resolve_path(inode, path, &dir, &uni_name); + if (ret) + goto out; + + ret = get_num_entries_and_dos_name(sb, &dir, &uni_name, &num_entries, + &dos_name); + if (ret) + goto out; + + /* search the file name for directories */ + dentry = p_fs->fs_func->find_dir_entry(sb, &dir, &uni_name, num_entries, + &dos_name, TYPE_ALL); + if (dentry < -1) { + ret = FFS_NOTFOUND; + goto out; + } + + fid->dir.dir = dir.dir; + fid->dir.size = dir.size; + fid->dir.flags = dir.flags; + fid->entry = dentry; + + if (dentry == -1) { + fid->type = TYPE_DIR; + fid->rwoffset = 0; + fid->hint_last_off = -1; + + fid->attr = ATTR_SUBDIR; + fid->flags = 0x01; + fid->size = 0; + fid->start_clu = p_fs->root_dir; + } else { + if (p_fs->vol_type == EXFAT) { + es = get_entry_set_in_dir(sb, &dir, dentry, + ES_2_ENTRIES, &ep); + if (!es) { + ret = FFS_MEDIAERR; + goto out; + } + ep2 = ep+1; + } else { + ep = get_entry_in_dir(sb, &dir, dentry, NULL); + if (!ep) { + ret = FFS_MEDIAERR; + goto out; + } + ep2 = ep; + } + + fid->type = p_fs->fs_func->get_entry_type(ep); + fid->rwoffset = 0; + fid->hint_last_off = -1; + fid->attr = p_fs->fs_func->get_entry_attr(ep); + + fid->size = p_fs->fs_func->get_entry_size(ep2); + if ((fid->type == TYPE_FILE) && (fid->size == 0)) { + fid->flags = (p_fs->vol_type == EXFAT) ? 0x03 : 0x01; + fid->start_clu = CLUSTER_32(~0); + } else { + fid->flags = p_fs->fs_func->get_entry_flag(ep2); + fid->start_clu = p_fs->fs_func->get_entry_clu0(ep2); + } + + if (p_fs->vol_type == EXFAT) + release_entry_set(es); + } + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; +out: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return ret; +} + +static int ffsCreateFile(struct inode *inode, char *path, u8 mode, + struct file_id_t *fid) +{ + struct chain_t dir; + struct uni_name_t uni_name; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + int ret; + + /* check the validity of pointer parameters */ + if ((fid == NULL) || (path == NULL) || (*path == '\0')) + return FFS_ERROR; + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + /* check the validity of directory name in the given pathname */ + ret = resolve_path(inode, path, &dir, &uni_name); + if (ret) + goto out; + + fs_set_vol_flags(sb, VOL_DIRTY); + + /* create a new file */ + ret = create_file(inode, &dir, &uni_name, mode, fid); + +#ifdef CONFIG_EXFAT_DELAYED_SYNC + fs_sync(sb, false); + fs_set_vol_flags(sb, VOL_CLEAN); +#endif + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + +out: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return ret; +} + +static int ffsReadFile(struct inode *inode, struct file_id_t *fid, void *buffer, + u64 count, u64 *rcount) +{ + s32 offset, sec_offset, clu_offset; + u32 clu; + int ret = 0; + sector_t LogSector; + u64 oneblkread, read_bytes; + struct buffer_head *tmp_bh = NULL; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + /* check the validity of the given file id */ + if (fid == NULL) + return FFS_INVALIDFID; + + /* check the validity of pointer parameters */ + if (buffer == NULL) + return FFS_ERROR; + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + /* check if the given file ID is opened */ + if (fid->type != TYPE_FILE) { + ret = FFS_PERMISSIONERR; + goto out; + } + + if (fid->rwoffset > fid->size) + fid->rwoffset = fid->size; + + if (count > (fid->size - fid->rwoffset)) + count = fid->size - fid->rwoffset; + + if (count == 0) { + if (rcount != NULL) + *rcount = 0; + ret = FFS_EOF; + goto out; + } + + read_bytes = 0; + + while (count > 0) { + clu_offset = (s32)(fid->rwoffset >> p_fs->cluster_size_bits); + clu = fid->start_clu; + + if (fid->flags == 0x03) { + clu += clu_offset; + } else { + /* hint information */ + if ((clu_offset > 0) && (fid->hint_last_off > 0) && + (clu_offset >= fid->hint_last_off)) { + clu_offset -= fid->hint_last_off; + clu = fid->hint_last_clu; + } + + while (clu_offset > 0) { + /* clu = FAT_read(sb, clu); */ + if (FAT_read(sb, clu, &clu) == -1) + return FFS_MEDIAERR; + + clu_offset--; + } + } + + /* hint information */ + fid->hint_last_off = (s32)(fid->rwoffset >> + p_fs->cluster_size_bits); + fid->hint_last_clu = clu; + + /* byte offset in cluster */ + offset = (s32)(fid->rwoffset & (p_fs->cluster_size-1)); + + /* sector offset in cluster */ + sec_offset = offset >> p_bd->sector_size_bits; + + /* byte offset in sector */ + offset &= p_bd->sector_size_mask; + + LogSector = START_SECTOR(clu) + sec_offset; + + oneblkread = (u64)(p_bd->sector_size - offset); + if (oneblkread > count) + oneblkread = count; + + if ((offset == 0) && (oneblkread == p_bd->sector_size)) { + if (sector_read(sb, LogSector, &tmp_bh, 1) != + FFS_SUCCESS) + goto err_out; + memcpy((char *)buffer + read_bytes, + (char *)tmp_bh->b_data, (s32)oneblkread); + } else { + if (sector_read(sb, LogSector, &tmp_bh, 1) != + FFS_SUCCESS) + goto err_out; + memcpy((char *)buffer + read_bytes, + (char *)tmp_bh->b_data + offset, + (s32)oneblkread); + } + count -= oneblkread; + read_bytes += oneblkread; + fid->rwoffset += oneblkread; + } + brelse(tmp_bh); + +/* How did this ever work and not leak a brlse()?? */ +err_out: + /* set the size of read bytes */ + if (rcount != NULL) + *rcount = read_bytes; + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + +out: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return ret; +} + +static int ffsWriteFile(struct inode *inode, struct file_id_t *fid, + void *buffer, u64 count, u64 *wcount) +{ + bool modified = false; + s32 offset, sec_offset, clu_offset; + s32 num_clusters, num_alloc, num_alloced = (s32) ~0; + int ret = 0; + u32 clu, last_clu; + sector_t LogSector, sector = 0; + u64 oneblkwrite, write_bytes; + struct chain_t new_clu; + struct timestamp_t tm; + struct dentry_t *ep, *ep2; + struct entry_set_cache_t *es = NULL; + struct buffer_head *tmp_bh = NULL; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + + /* check the validity of the given file id */ + if (fid == NULL) + return FFS_INVALIDFID; + + /* check the validity of pointer parameters */ + if (buffer == NULL) + return FFS_ERROR; + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + /* check if the given file ID is opened */ + if (fid->type != TYPE_FILE) { + ret = FFS_PERMISSIONERR; + goto out; + } + + if (fid->rwoffset > fid->size) + fid->rwoffset = fid->size; + + if (count == 0) { + if (wcount != NULL) + *wcount = 0; + ret = FFS_SUCCESS; + goto out; + } + + fs_set_vol_flags(sb, VOL_DIRTY); + + if (fid->size == 0) + num_clusters = 0; + else + num_clusters = (s32)((fid->size-1) >> + p_fs->cluster_size_bits) + 1; + + write_bytes = 0; + + while (count > 0) { + clu_offset = (s32)(fid->rwoffset >> p_fs->cluster_size_bits); + clu = last_clu = fid->start_clu; + + if (fid->flags == 0x03) { + if ((clu_offset > 0) && (clu != CLUSTER_32(~0))) { + last_clu += clu_offset - 1; + + if (clu_offset == num_clusters) + clu = CLUSTER_32(~0); + else + clu += clu_offset; + } + } else { + /* hint information */ + if ((clu_offset > 0) && (fid->hint_last_off > 0) && + (clu_offset >= fid->hint_last_off)) { + clu_offset -= fid->hint_last_off; + clu = fid->hint_last_clu; + } + + while ((clu_offset > 0) && (clu != CLUSTER_32(~0))) { + last_clu = clu; + /* clu = FAT_read(sb, clu); */ + if (FAT_read(sb, clu, &clu) == -1) { + ret = FFS_MEDIAERR; + goto out; + } + clu_offset--; + } + } + + if (clu == CLUSTER_32(~0)) { + num_alloc = (s32)((count - 1) >> + p_fs->cluster_size_bits) + 1; + new_clu.dir = (last_clu == CLUSTER_32(~0)) ? + CLUSTER_32(~0) : last_clu+1; + new_clu.size = 0; + new_clu.flags = fid->flags; + + /* (1) allocate a chain of clusters */ + num_alloced = p_fs->fs_func->alloc_cluster(sb, + num_alloc, + &new_clu); + if (num_alloced == 0) + break; + if (num_alloced < 0) { + ret = FFS_MEDIAERR; + goto out; + } + + /* (2) append to the FAT chain */ + if (last_clu == CLUSTER_32(~0)) { + if (new_clu.flags == 0x01) + fid->flags = 0x01; + fid->start_clu = new_clu.dir; + modified = true; + } else { + if (new_clu.flags != fid->flags) { + exfat_chain_cont_cluster(sb, + fid->start_clu, + num_clusters); + fid->flags = 0x01; + modified = true; + } + if (new_clu.flags == 0x01) + FAT_write(sb, last_clu, new_clu.dir); + } + + num_clusters += num_alloced; + clu = new_clu.dir; + } + + /* hint information */ + fid->hint_last_off = (s32)(fid->rwoffset >> + p_fs->cluster_size_bits); + fid->hint_last_clu = clu; + + /* byte offset in cluster */ + offset = (s32)(fid->rwoffset & (p_fs->cluster_size - 1)); + + /* sector offset in cluster */ + sec_offset = offset >> p_bd->sector_size_bits; + + /* byte offset in sector */ + offset &= p_bd->sector_size_mask; + + LogSector = START_SECTOR(clu) + sec_offset; + + oneblkwrite = (u64)(p_bd->sector_size - offset); + if (oneblkwrite > count) + oneblkwrite = count; + + if ((offset == 0) && (oneblkwrite == p_bd->sector_size)) { + if (sector_read(sb, LogSector, &tmp_bh, 0) != + FFS_SUCCESS) + goto err_out; + memcpy((char *)tmp_bh->b_data, + (char *)buffer + write_bytes, (s32)oneblkwrite); + if (sector_write(sb, LogSector, tmp_bh, 0) != + FFS_SUCCESS) { + brelse(tmp_bh); + goto err_out; + } + } else { + if ((offset > 0) || + ((fid->rwoffset+oneblkwrite) < fid->size)) { + if (sector_read(sb, LogSector, &tmp_bh, 1) != + FFS_SUCCESS) + goto err_out; + } else { + if (sector_read(sb, LogSector, &tmp_bh, 0) != + FFS_SUCCESS) + goto err_out; + } + + memcpy((char *)tmp_bh->b_data + offset, + (char *)buffer + write_bytes, (s32)oneblkwrite); + if (sector_write(sb, LogSector, tmp_bh, 0) != + FFS_SUCCESS) { + brelse(tmp_bh); + goto err_out; + } + } + + count -= oneblkwrite; + write_bytes += oneblkwrite; + fid->rwoffset += oneblkwrite; + + fid->attr |= ATTR_ARCHIVE; + + if (fid->size < fid->rwoffset) { + fid->size = fid->rwoffset; + modified = true; + } + } + + brelse(tmp_bh); + + /* (3) update the direcoty entry */ + if (p_fs->vol_type == EXFAT) { + es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry, + ES_ALL_ENTRIES, &ep); + if (es == NULL) + goto err_out; + ep2 = ep+1; + } else { + ep = get_entry_in_dir(sb, &(fid->dir), fid->entry, §or); + if (!ep) + goto err_out; + ep2 = ep; + } + + p_fs->fs_func->set_entry_time(ep, tm_current(&tm), TM_MODIFY); + p_fs->fs_func->set_entry_attr(ep, fid->attr); + + if (p_fs->vol_type != EXFAT) + buf_modify(sb, sector); + + if (modified) { + if (p_fs->fs_func->get_entry_flag(ep2) != fid->flags) + p_fs->fs_func->set_entry_flag(ep2, fid->flags); + + if (p_fs->fs_func->get_entry_size(ep2) != fid->size) + p_fs->fs_func->set_entry_size(ep2, fid->size); + + if (p_fs->fs_func->get_entry_clu0(ep2) != fid->start_clu) + p_fs->fs_func->set_entry_clu0(ep2, fid->start_clu); + + if (p_fs->vol_type != EXFAT) + buf_modify(sb, sector); + } + + if (p_fs->vol_type == EXFAT) { + update_dir_checksum_with_entry_set(sb, es); + release_entry_set(es); + } + +#ifdef CONFIG_EXFAT_DELAYED_SYNC + fs_sync(sb, false); + fs_set_vol_flags(sb, VOL_CLEAN); +#endif + +err_out: + /* set the size of written bytes */ + if (wcount != NULL) + *wcount = write_bytes; + + if (num_alloced == 0) + ret = FFS_FULL; + + else if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + +out: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return ret; +} + +static int ffsTruncateFile(struct inode *inode, u64 old_size, u64 new_size) +{ + s32 num_clusters; + u32 last_clu = CLUSTER_32(0); + int ret = 0; + sector_t sector = 0; + struct chain_t clu; + struct timestamp_t tm; + struct dentry_t *ep, *ep2; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct file_id_t *fid = &(EXFAT_I(inode)->fid); + struct entry_set_cache_t *es = NULL; + + pr_debug("%s entered (inode %p size %llu)\n", __func__, inode, + new_size); + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + /* check if the given file ID is opened */ + if (fid->type != TYPE_FILE) { + ret = FFS_PERMISSIONERR; + goto out; + } + + if (fid->size != old_size) { + pr_err("[EXFAT] truncate : can't skip it because of size-mismatch(old:%lld->fid:%lld).\n", + old_size, fid->size); + } + + if (old_size <= new_size) { + ret = FFS_SUCCESS; + goto out; + } + + fs_set_vol_flags(sb, VOL_DIRTY); + + clu.dir = fid->start_clu; + clu.size = (s32)((old_size-1) >> p_fs->cluster_size_bits) + 1; + clu.flags = fid->flags; + + if (new_size > 0) { + num_clusters = (s32)((new_size-1) >> + p_fs->cluster_size_bits) + 1; + + if (clu.flags == 0x03) { + clu.dir += num_clusters; + } else { + while (num_clusters > 0) { + last_clu = clu.dir; + if (FAT_read(sb, clu.dir, &clu.dir) == -1) + return FFS_MEDIAERR; + num_clusters--; + } + } + + clu.size -= num_clusters; + } + + fid->size = new_size; + fid->attr |= ATTR_ARCHIVE; + if (new_size == 0) { + fid->flags = (p_fs->vol_type == EXFAT) ? 0x03 : 0x01; + fid->start_clu = CLUSTER_32(~0); + } + + /* (1) update the directory entry */ + if (p_fs->vol_type == EXFAT) { + es = get_entry_set_in_dir(sb, &fid->dir, fid->entry, + ES_ALL_ENTRIES, &ep); + if (es == NULL) { + ret = FFS_MEDIAERR; + goto out; + } + ep2 = ep+1; + } else { + ep = get_entry_in_dir(sb, &(fid->dir), fid->entry, §or); + if (!ep) { + ret = FFS_MEDIAERR; + goto out; + } + ep2 = ep; + } + + p_fs->fs_func->set_entry_time(ep, tm_current(&tm), TM_MODIFY); + p_fs->fs_func->set_entry_attr(ep, fid->attr); + + p_fs->fs_func->set_entry_size(ep2, new_size); + if (new_size == 0) { + p_fs->fs_func->set_entry_flag(ep2, 0x01); + p_fs->fs_func->set_entry_clu0(ep2, CLUSTER_32(0)); + } + + if (p_fs->vol_type != EXFAT) { + buf_modify(sb, sector); + } else { + update_dir_checksum_with_entry_set(sb, es); + release_entry_set(es); + } + + /* (2) cut off from the FAT chain */ + if (last_clu != CLUSTER_32(0)) { + if (fid->flags == 0x01) + FAT_write(sb, last_clu, CLUSTER_32(~0)); + } + + /* (3) free the clusters */ + p_fs->fs_func->free_cluster(sb, &clu, 0); + + /* hint information */ + fid->hint_last_off = -1; + if (fid->rwoffset > fid->size) + fid->rwoffset = fid->size; + +#ifdef CONFIG_EXFAT_DELAYED_SYNC + fs_sync(sb, false); + fs_set_vol_flags(sb, VOL_CLEAN); +#endif + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + +out: + pr_debug("%s exited (%d)\n", __func__, ret); + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return ret; +} + +static void update_parent_info(struct file_id_t *fid, + struct inode *parent_inode) +{ + struct fs_info_t *p_fs = &(EXFAT_SB(parent_inode->i_sb)->fs_info); + struct file_id_t *parent_fid = &(EXFAT_I(parent_inode)->fid); + + if (unlikely((parent_fid->flags != fid->dir.flags) || + (parent_fid->size != + (fid->dir.size << p_fs->cluster_size_bits)) || + (parent_fid->start_clu != fid->dir.dir))) { + fid->dir.dir = parent_fid->start_clu; + fid->dir.flags = parent_fid->flags; + fid->dir.size = ((parent_fid->size + (p_fs->cluster_size-1)) + >> p_fs->cluster_size_bits); + } +} + +static int ffsMoveFile(struct inode *old_parent_inode, struct file_id_t *fid, + struct inode *new_parent_inode, struct dentry *new_dentry) +{ + s32 ret; + s32 dentry; + struct chain_t olddir, newdir; + struct chain_t *p_dir = NULL; + struct uni_name_t uni_name; + struct dentry_t *ep; + struct super_block *sb = old_parent_inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + u8 *new_path = (u8 *) new_dentry->d_name.name; + struct inode *new_inode = new_dentry->d_inode; + int num_entries; + struct file_id_t *new_fid = NULL; + s32 new_entry = 0; + + /* check the validity of the given file id */ + if (fid == NULL) + return FFS_INVALIDFID; + + /* check the validity of pointer parameters */ + if ((new_path == NULL) || (*new_path == '\0')) + return FFS_ERROR; + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + update_parent_info(fid, old_parent_inode); + + olddir.dir = fid->dir.dir; + olddir.size = fid->dir.size; + olddir.flags = fid->dir.flags; + + dentry = fid->entry; + + /* check if the old file is "." or ".." */ + if (p_fs->vol_type != EXFAT) { + if ((olddir.dir != p_fs->root_dir) && (dentry < 2)) { + ret = FFS_PERMISSIONERR; + goto out2; + } + } + + ep = get_entry_in_dir(sb, &olddir, dentry, NULL); + if (!ep) { + ret = FFS_MEDIAERR; + goto out2; + } + + if (p_fs->fs_func->get_entry_attr(ep) & ATTR_READONLY) { + ret = FFS_PERMISSIONERR; + goto out2; + } + + /* check whether new dir is existing directory and empty */ + if (new_inode) { + u32 entry_type; + + ret = FFS_MEDIAERR; + new_fid = &EXFAT_I(new_inode)->fid; + + update_parent_info(new_fid, new_parent_inode); + + p_dir = &(new_fid->dir); + new_entry = new_fid->entry; + ep = get_entry_in_dir(sb, p_dir, new_entry, NULL); + if (!ep) + goto out; + + entry_type = p_fs->fs_func->get_entry_type(ep); + + if (entry_type == TYPE_DIR) { + struct chain_t new_clu; + + new_clu.dir = new_fid->start_clu; + new_clu.size = (s32)((new_fid->size - 1) >> + p_fs->cluster_size_bits) + 1; + new_clu.flags = new_fid->flags; + + if (!is_dir_empty(sb, &new_clu)) { + ret = FFS_FILEEXIST; + goto out; + } + } + } + + /* check the validity of directory name in the given new pathname */ + ret = resolve_path(new_parent_inode, new_path, &newdir, &uni_name); + if (ret) + goto out2; + + fs_set_vol_flags(sb, VOL_DIRTY); + + if (olddir.dir == newdir.dir) + ret = rename_file(new_parent_inode, &olddir, dentry, &uni_name, + fid); + else + ret = move_file(new_parent_inode, &olddir, dentry, &newdir, + &uni_name, fid); + + if ((ret == FFS_SUCCESS) && new_inode) { + /* delete entries of new_dir */ + ep = get_entry_in_dir(sb, p_dir, new_entry, NULL); + if (!ep) + goto out; + + num_entries = p_fs->fs_func->count_ext_entries(sb, p_dir, + new_entry, ep); + if (num_entries < 0) + goto out; + p_fs->fs_func->delete_dir_entry(sb, p_dir, new_entry, 0, + num_entries+1); + } +out: +#ifdef CONFIG_EXFAT_DELAYED_SYNC + fs_sync(sb, false); + fs_set_vol_flags(sb, VOL_CLEAN); +#endif + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; +out2: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return ret; +} + +static int ffsRemoveFile(struct inode *inode, struct file_id_t *fid) +{ + s32 dentry; + int ret = FFS_SUCCESS; + struct chain_t dir, clu_to_free; + struct dentry_t *ep; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + /* check the validity of the given file id */ + if (fid == NULL) + return FFS_INVALIDFID; + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + dir.dir = fid->dir.dir; + dir.size = fid->dir.size; + dir.flags = fid->dir.flags; + + dentry = fid->entry; + + ep = get_entry_in_dir(sb, &dir, dentry, NULL); + if (!ep) { + ret = FFS_MEDIAERR; + goto out; + } + + if (p_fs->fs_func->get_entry_attr(ep) & ATTR_READONLY) { + ret = FFS_PERMISSIONERR; + goto out; + } + fs_set_vol_flags(sb, VOL_DIRTY); + + /* (1) update the directory entry */ + remove_file(inode, &dir, dentry); + + clu_to_free.dir = fid->start_clu; + clu_to_free.size = (s32)((fid->size-1) >> p_fs->cluster_size_bits) + 1; + clu_to_free.flags = fid->flags; + + /* (2) free the clusters */ + p_fs->fs_func->free_cluster(sb, &clu_to_free, 0); + + fid->size = 0; + fid->start_clu = CLUSTER_32(~0); + fid->flags = (p_fs->vol_type == EXFAT) ? 0x03 : 0x01; + +#ifdef CONFIG_EXFAT_DELAYED_SYNC + fs_sync(sb, false); + fs_set_vol_flags(sb, VOL_CLEAN); +#endif + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; +out: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return ret; +} + +#if 0 +/* Not currently wired up */ +static int ffsSetAttr(struct inode *inode, u32 attr) +{ + u32 type; + int ret = FFS_SUCCESS; + sector_t sector = 0; + struct dentry_t *ep; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct file_id_t *fid = &(EXFAT_I(inode)->fid); + u8 is_dir = (fid->type == TYPE_DIR) ? 1 : 0; + struct entry_set_cache_t *es = NULL; + + if (fid->attr == attr) { + if (p_fs->dev_ejected) + return FFS_MEDIAERR; + return FFS_SUCCESS; + } + + if (is_dir) { + if ((fid->dir.dir == p_fs->root_dir) && + (fid->entry == -1)) { + if (p_fs->dev_ejected) + return FFS_MEDIAERR; + return FFS_SUCCESS; + } + } + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + /* get the directory entry of given file */ + if (p_fs->vol_type == EXFAT) { + es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry, + ES_ALL_ENTRIES, &ep); + if (es == NULL) { + ret = FFS_MEDIAERR; + goto out; + } + } else { + ep = get_entry_in_dir(sb, &(fid->dir), fid->entry, §or); + if (!ep) { + ret = FFS_MEDIAERR; + goto out; + } + } + + type = p_fs->fs_func->get_entry_type(ep); + + if (((type == TYPE_FILE) && (attr & ATTR_SUBDIR)) || + ((type == TYPE_DIR) && (!(attr & ATTR_SUBDIR)))) { + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + else + ret = FFS_ERROR; + + if (p_fs->vol_type == EXFAT) + release_entry_set(es); + goto out; + } + + fs_set_vol_flags(sb, VOL_DIRTY); + + /* set the file attribute */ + fid->attr = attr; + p_fs->fs_func->set_entry_attr(ep, attr); + + if (p_fs->vol_type != EXFAT) { + buf_modify(sb, sector); + } else { + update_dir_checksum_with_entry_set(sb, es); + release_entry_set(es); + } + +#ifdef CONFIG_EXFAT_DELAYED_SYNC + fs_sync(sb, false); + fs_set_vol_flags(sb, VOL_CLEAN); +#endif + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; +out: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return ret; +} +#endif + +static int ffsReadStat(struct inode *inode, struct dir_entry_t *info) +{ + sector_t sector = 0; + s32 count; + int ret = FFS_SUCCESS; + struct chain_t dir; + struct uni_name_t uni_name; + struct timestamp_t tm; + struct dentry_t *ep, *ep2; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct file_id_t *fid = &(EXFAT_I(inode)->fid); + struct entry_set_cache_t *es = NULL; + u8 is_dir = (fid->type == TYPE_DIR) ? 1 : 0; + + pr_debug("%s entered\n", __func__); + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + if (is_dir) { + if ((fid->dir.dir == p_fs->root_dir) && + (fid->entry == -1)) { + info->Attr = ATTR_SUBDIR; + memset((char *)&info->CreateTimestamp, 0, + sizeof(struct date_time_t)); + memset((char *)&info->ModifyTimestamp, 0, + sizeof(struct date_time_t)); + memset((char *)&info->AccessTimestamp, 0, + sizeof(struct date_time_t)); + strcpy(info->ShortName, "."); + strcpy(info->Name, "."); + + dir.dir = p_fs->root_dir; + dir.flags = 0x01; + + if (p_fs->root_dir == CLUSTER_32(0)) { + /* FAT16 root_dir */ + info->Size = p_fs->dentries_in_root << + DENTRY_SIZE_BITS; + } else { + info->Size = count_num_clusters(sb, &dir) << + p_fs->cluster_size_bits; + } + + count = count_dos_name_entries(sb, &dir, TYPE_DIR); + if (count < 0) { + ret = FFS_MEDIAERR; + goto out; + } + info->NumSubdirs = count; + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + goto out; + } + } + + /* get the directory entry of given file or directory */ + if (p_fs->vol_type == EXFAT) { + es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry, + ES_2_ENTRIES, &ep); + if (es == NULL) { + ret = FFS_MEDIAERR; + goto out; + } + ep2 = ep+1; + } else { + ep = get_entry_in_dir(sb, &(fid->dir), fid->entry, §or); + if (!ep) { + ret = FFS_MEDIAERR; + goto out; + } + ep2 = ep; + buf_lock(sb, sector); + } + + /* set FILE_INFO structure using the acquired struct dentry_t */ + info->Attr = p_fs->fs_func->get_entry_attr(ep); + + p_fs->fs_func->get_entry_time(ep, &tm, TM_CREATE); + info->CreateTimestamp.Year = tm.year; + info->CreateTimestamp.Month = tm.mon; + info->CreateTimestamp.Day = tm.day; + info->CreateTimestamp.Hour = tm.hour; + info->CreateTimestamp.Minute = tm.min; + info->CreateTimestamp.Second = tm.sec; + info->CreateTimestamp.MilliSecond = 0; + + p_fs->fs_func->get_entry_time(ep, &tm, TM_MODIFY); + info->ModifyTimestamp.Year = tm.year; + info->ModifyTimestamp.Month = tm.mon; + info->ModifyTimestamp.Day = tm.day; + info->ModifyTimestamp.Hour = tm.hour; + info->ModifyTimestamp.Minute = tm.min; + info->ModifyTimestamp.Second = tm.sec; + info->ModifyTimestamp.MilliSecond = 0; + + memset((char *) &info->AccessTimestamp, 0, sizeof(struct date_time_t)); + + *(uni_name.name) = 0x0; + /* XXX this is very bad for exfat cuz name is already included in es. + * API should be revised + */ + p_fs->fs_func->get_uni_name_from_ext_entry(sb, &(fid->dir), fid->entry, + uni_name.name); + if (*uni_name.name == 0x0 && p_fs->vol_type != EXFAT) + get_uni_name_from_dos_entry(sb, (struct dos_dentry_t *)ep, + &uni_name, 0x1); + nls_uniname_to_cstring(sb, info->Name, &uni_name); + + if (p_fs->vol_type == EXFAT) { + info->NumSubdirs = 2; + } else { + buf_unlock(sb, sector); + get_uni_name_from_dos_entry(sb, (struct dos_dentry_t *)ep, + &uni_name, 0x0); + nls_uniname_to_cstring(sb, info->ShortName, &uni_name); + info->NumSubdirs = 0; + } + + info->Size = p_fs->fs_func->get_entry_size(ep2); + + if (p_fs->vol_type == EXFAT) + release_entry_set(es); + + if (is_dir) { + dir.dir = fid->start_clu; + dir.flags = 0x01; + + if (info->Size == 0) + info->Size = (u64)count_num_clusters(sb, &dir) << + p_fs->cluster_size_bits; + + count = count_dos_name_entries(sb, &dir, TYPE_DIR); + if (count < 0) { + ret = FFS_MEDIAERR; + goto out; + } + info->NumSubdirs += count; + } + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + +out: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + pr_debug("%s exited successfully\n", __func__); + return ret; +} + +static int ffsWriteStat(struct inode *inode, struct dir_entry_t *info) +{ + sector_t sector = 0; + int ret = FFS_SUCCESS; + struct timestamp_t tm; + struct dentry_t *ep, *ep2; + struct entry_set_cache_t *es = NULL; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct file_id_t *fid = &(EXFAT_I(inode)->fid); + u8 is_dir = (fid->type == TYPE_DIR) ? 1 : 0; + + pr_debug("%s entered (inode %p info %p\n", __func__, inode, info); + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + if (is_dir) { + if ((fid->dir.dir == p_fs->root_dir) && + (fid->entry == -1)) { + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + ret = FFS_SUCCESS; + goto out; + } + } + + fs_set_vol_flags(sb, VOL_DIRTY); + + /* get the directory entry of given file or directory */ + if (p_fs->vol_type == EXFAT) { + es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry, + ES_ALL_ENTRIES, &ep); + if (es == NULL) { + ret = FFS_MEDIAERR; + goto out; + } + ep2 = ep+1; + } else { + /* for other than exfat */ + ep = get_entry_in_dir(sb, &(fid->dir), fid->entry, §or); + if (!ep) { + ret = FFS_MEDIAERR; + goto out; + } + ep2 = ep; + } + + p_fs->fs_func->set_entry_attr(ep, info->Attr); + + /* set FILE_INFO structure using the acquired struct dentry_t */ + tm.sec = info->CreateTimestamp.Second; + tm.min = info->CreateTimestamp.Minute; + tm.hour = info->CreateTimestamp.Hour; + tm.day = info->CreateTimestamp.Day; + tm.mon = info->CreateTimestamp.Month; + tm.year = info->CreateTimestamp.Year; + p_fs->fs_func->set_entry_time(ep, &tm, TM_CREATE); + + tm.sec = info->ModifyTimestamp.Second; + tm.min = info->ModifyTimestamp.Minute; + tm.hour = info->ModifyTimestamp.Hour; + tm.day = info->ModifyTimestamp.Day; + tm.mon = info->ModifyTimestamp.Month; + tm.year = info->ModifyTimestamp.Year; + p_fs->fs_func->set_entry_time(ep, &tm, TM_MODIFY); + + p_fs->fs_func->set_entry_size(ep2, info->Size); + + if (p_fs->vol_type != EXFAT) { + buf_modify(sb, sector); + } else { + update_dir_checksum_with_entry_set(sb, es); + release_entry_set(es); + } + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + +out: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + pr_debug("%s exited (%d)\n", __func__, ret); + + return ret; +} + +static int ffsMapCluster(struct inode *inode, s32 clu_offset, u32 *clu) +{ + s32 num_clusters, num_alloced; + bool modified = false; + u32 last_clu; + int ret = FFS_SUCCESS; + sector_t sector = 0; + struct chain_t new_clu; + struct dentry_t *ep; + struct entry_set_cache_t *es = NULL; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct file_id_t *fid = &(EXFAT_I(inode)->fid); + + /* check the validity of pointer parameters */ + if (clu == NULL) + return FFS_ERROR; + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + fid->rwoffset = (s64)(clu_offset) << p_fs->cluster_size_bits; + + if (EXFAT_I(inode)->mmu_private == 0) + num_clusters = 0; + else + num_clusters = (s32)((EXFAT_I(inode)->mmu_private - 1) >> + p_fs->cluster_size_bits) + 1; + + *clu = last_clu = fid->start_clu; + + if (fid->flags == 0x03) { + if ((clu_offset > 0) && (*clu != CLUSTER_32(~0))) { + last_clu += clu_offset - 1; + + if (clu_offset == num_clusters) + *clu = CLUSTER_32(~0); + else + *clu += clu_offset; + } + } else { + /* hint information */ + if ((clu_offset > 0) && (fid->hint_last_off > 0) && + (clu_offset >= fid->hint_last_off)) { + clu_offset -= fid->hint_last_off; + *clu = fid->hint_last_clu; + } + + while ((clu_offset > 0) && (*clu != CLUSTER_32(~0))) { + last_clu = *clu; + if (FAT_read(sb, *clu, clu) == -1) { + ret = FFS_MEDIAERR; + goto out; + } + clu_offset--; + } + } + + if (*clu == CLUSTER_32(~0)) { + fs_set_vol_flags(sb, VOL_DIRTY); + + new_clu.dir = (last_clu == CLUSTER_32(~0)) ? CLUSTER_32(~0) : + last_clu + 1; + new_clu.size = 0; + new_clu.flags = fid->flags; + + /* (1) allocate a cluster */ + num_alloced = p_fs->fs_func->alloc_cluster(sb, 1, &new_clu); + if (num_alloced < 0) { + ret = FFS_MEDIAERR; + goto out; + } else if (num_alloced == 0) { + ret = FFS_FULL; + goto out; + } + + /* (2) append to the FAT chain */ + if (last_clu == CLUSTER_32(~0)) { + if (new_clu.flags == 0x01) + fid->flags = 0x01; + fid->start_clu = new_clu.dir; + modified = true; + } else { + if (new_clu.flags != fid->flags) { + exfat_chain_cont_cluster(sb, fid->start_clu, + num_clusters); + fid->flags = 0x01; + modified = true; + } + if (new_clu.flags == 0x01) + FAT_write(sb, last_clu, new_clu.dir); + } + + num_clusters += num_alloced; + *clu = new_clu.dir; + + if (p_fs->vol_type == EXFAT) { + es = get_entry_set_in_dir(sb, &fid->dir, fid->entry, + ES_ALL_ENTRIES, &ep); + if (es == NULL) { + ret = FFS_MEDIAERR; + goto out; + } + /* get stream entry */ + ep++; + } + + /* (3) update directory entry */ + if (modified) { + if (p_fs->vol_type != EXFAT) { + ep = get_entry_in_dir(sb, &(fid->dir), + fid->entry, §or); + if (!ep) { + ret = FFS_MEDIAERR; + goto out; + } + } + + if (p_fs->fs_func->get_entry_flag(ep) != fid->flags) + p_fs->fs_func->set_entry_flag(ep, fid->flags); + + if (p_fs->fs_func->get_entry_clu0(ep) != fid->start_clu) + p_fs->fs_func->set_entry_clu0(ep, + fid->start_clu); + + if (p_fs->vol_type != EXFAT) + buf_modify(sb, sector); + } + + if (p_fs->vol_type == EXFAT) { + update_dir_checksum_with_entry_set(sb, es); + release_entry_set(es); + } + + /* add number of new blocks to inode */ + inode->i_blocks += num_alloced << (p_fs->cluster_size_bits - 9); + } + + /* hint information */ + fid->hint_last_off = (s32)(fid->rwoffset >> p_fs->cluster_size_bits); + fid->hint_last_clu = *clu; + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + +out: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return ret; +} + +/*----------------------------------------------------------------------*/ +/* Directory Operation Functions */ +/*----------------------------------------------------------------------*/ + +static int ffsCreateDir(struct inode *inode, char *path, struct file_id_t *fid) +{ + int ret = FFS_SUCCESS; + struct chain_t dir; + struct uni_name_t uni_name; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + pr_debug("%s entered\n", __func__); + + /* check the validity of pointer parameters */ + if ((fid == NULL) || (path == NULL) || (*path == '\0')) + return FFS_ERROR; + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + /* check the validity of directory name in the given old pathname */ + ret = resolve_path(inode, path, &dir, &uni_name); + if (ret) + goto out; + + fs_set_vol_flags(sb, VOL_DIRTY); + + ret = create_dir(inode, &dir, &uni_name, fid); + +#ifdef CONFIG_EXFAT_DELAYED_SYNC + fs_sync(sb, false); + fs_set_vol_flags(sb, VOL_CLEAN); +#endif + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; +out: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return ret; +} + +static int ffsReadDir(struct inode *inode, struct dir_entry_t *dir_entry) +{ + int i, dentry, clu_offset; + int ret = FFS_SUCCESS; + s32 dentries_per_clu, dentries_per_clu_bits = 0; + u32 type; + sector_t sector; + struct chain_t dir, clu; + struct uni_name_t uni_name; + struct timestamp_t tm; + struct dentry_t *ep; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct fs_func *fs_func = p_fs->fs_func; + struct file_id_t *fid = &(EXFAT_I(inode)->fid); + + /* check the validity of pointer parameters */ + if (dir_entry == NULL) + return FFS_ERROR; + + /* check if the given file ID is opened */ + if (fid->type != TYPE_DIR) + return FFS_PERMISSIONERR; + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + if (fid->entry == -1) { + dir.dir = p_fs->root_dir; + dir.flags = 0x01; + } else { + dir.dir = fid->start_clu; + dir.size = (s32)(fid->size >> p_fs->cluster_size_bits); + dir.flags = fid->flags; + } + + dentry = (s32)fid->rwoffset; + + if (dir.dir == CLUSTER_32(0)) { + /* FAT16 root_dir */ + dentries_per_clu = p_fs->dentries_in_root; + + if (dentry == dentries_per_clu) { + clu.dir = CLUSTER_32(~0); + } else { + clu.dir = dir.dir; + clu.size = dir.size; + clu.flags = dir.flags; + } + } else { + dentries_per_clu = p_fs->dentries_per_clu; + dentries_per_clu_bits = ilog2(dentries_per_clu); + + clu_offset = dentry >> dentries_per_clu_bits; + clu.dir = dir.dir; + clu.size = dir.size; + clu.flags = dir.flags; + + if (clu.flags == 0x03) { + clu.dir += clu_offset; + clu.size -= clu_offset; + } else { + /* hint_information */ + if ((clu_offset > 0) && (fid->hint_last_off > 0) && + (clu_offset >= fid->hint_last_off)) { + clu_offset -= fid->hint_last_off; + clu.dir = fid->hint_last_clu; + } + + while (clu_offset > 0) { + /* clu.dir = FAT_read(sb, clu.dir); */ + if (FAT_read(sb, clu.dir, &clu.dir) == -1) { + ret = FFS_MEDIAERR; + goto out; + } + clu_offset--; + } + } + } + + while (clu.dir != CLUSTER_32(~0)) { + if (p_fs->dev_ejected) + break; + + if (dir.dir == CLUSTER_32(0)) /* FAT16 root_dir */ + i = dentry % dentries_per_clu; + else + i = dentry & (dentries_per_clu-1); + + for ( ; i < dentries_per_clu; i++, dentry++) { + ep = get_entry_in_dir(sb, &clu, i, §or); + if (!ep) { + ret = FFS_MEDIAERR; + goto out; + } + type = fs_func->get_entry_type(ep); + + if (type == TYPE_UNUSED) + break; + + if ((type != TYPE_FILE) && (type != TYPE_DIR)) + continue; + + buf_lock(sb, sector); + dir_entry->Attr = fs_func->get_entry_attr(ep); + + fs_func->get_entry_time(ep, &tm, TM_CREATE); + dir_entry->CreateTimestamp.Year = tm.year; + dir_entry->CreateTimestamp.Month = tm.mon; + dir_entry->CreateTimestamp.Day = tm.day; + dir_entry->CreateTimestamp.Hour = tm.hour; + dir_entry->CreateTimestamp.Minute = tm.min; + dir_entry->CreateTimestamp.Second = tm.sec; + dir_entry->CreateTimestamp.MilliSecond = 0; + + fs_func->get_entry_time(ep, &tm, TM_MODIFY); + dir_entry->ModifyTimestamp.Year = tm.year; + dir_entry->ModifyTimestamp.Month = tm.mon; + dir_entry->ModifyTimestamp.Day = tm.day; + dir_entry->ModifyTimestamp.Hour = tm.hour; + dir_entry->ModifyTimestamp.Minute = tm.min; + dir_entry->ModifyTimestamp.Second = tm.sec; + dir_entry->ModifyTimestamp.MilliSecond = 0; + + memset((char *)&dir_entry->AccessTimestamp, 0, + sizeof(struct date_time_t)); + + *(uni_name.name) = 0x0; + fs_func->get_uni_name_from_ext_entry(sb, &dir, dentry, + uni_name.name); + if (*uni_name.name == 0x0 && p_fs->vol_type != EXFAT) + get_uni_name_from_dos_entry(sb, + (struct dos_dentry_t *)ep, + &uni_name, 0x1); + nls_uniname_to_cstring(sb, dir_entry->Name, &uni_name); + buf_unlock(sb, sector); + + if (p_fs->vol_type == EXFAT) { + ep = get_entry_in_dir(sb, &clu, i+1, NULL); + if (!ep) { + ret = FFS_MEDIAERR; + goto out; + } + } else { + get_uni_name_from_dos_entry(sb, + (struct dos_dentry_t *)ep, + &uni_name, 0x0); + nls_uniname_to_cstring(sb, dir_entry->ShortName, + &uni_name); + } + + dir_entry->Size = fs_func->get_entry_size(ep); + + /* hint information */ + if (dir.dir == CLUSTER_32(0)) { /* FAT16 root_dir */ + } else { + fid->hint_last_off = dentry >> + dentries_per_clu_bits; + fid->hint_last_clu = clu.dir; + } + + fid->rwoffset = (s64) ++dentry; + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + goto out; + } + + if (dir.dir == CLUSTER_32(0)) + break; /* FAT16 root_dir */ + + if (clu.flags == 0x03) { + if ((--clu.size) > 0) + clu.dir++; + else + clu.dir = CLUSTER_32(~0); + } else { + /* clu.dir = FAT_read(sb, clu.dir); */ + if (FAT_read(sb, clu.dir, &clu.dir) == -1) { + ret = FFS_MEDIAERR; + goto out; + } + } + } + + *(dir_entry->Name) = '\0'; + + fid->rwoffset = (s64) ++dentry; + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + +out: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return ret; +} + +static int ffsRemoveDir(struct inode *inode, struct file_id_t *fid) +{ + s32 dentry; + int ret = FFS_SUCCESS; + struct chain_t dir, clu_to_free; + struct super_block *sb = inode->i_sb; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + /* check the validity of the given file id */ + if (fid == NULL) + return FFS_INVALIDFID; + + dir.dir = fid->dir.dir; + dir.size = fid->dir.size; + dir.flags = fid->dir.flags; + + dentry = fid->entry; + + /* check if the file is "." or ".." */ + if (p_fs->vol_type != EXFAT) { + if ((dir.dir != p_fs->root_dir) && (dentry < 2)) + return FFS_PERMISSIONERR; + } + + /* acquire the lock for file system critical section */ + down(&p_fs->v_sem); + + clu_to_free.dir = fid->start_clu; + clu_to_free.size = (s32)((fid->size-1) >> p_fs->cluster_size_bits) + 1; + clu_to_free.flags = fid->flags; + + if (!is_dir_empty(sb, &clu_to_free)) { + ret = FFS_FILEEXIST; + goto out; + } + + fs_set_vol_flags(sb, VOL_DIRTY); + + /* (1) update the directory entry */ + remove_file(inode, &dir, dentry); + + /* (2) free the clusters */ + p_fs->fs_func->free_cluster(sb, &clu_to_free, 1); + + fid->size = 0; + fid->start_clu = CLUSTER_32(~0); + fid->flags = (p_fs->vol_type == EXFAT) ? 0x03 : 0x01; + +#ifdef CONFIG_EXFAT_DELAYED_SYNC + fs_sync(sb, false); + fs_set_vol_flags(sb, VOL_CLEAN); +#endif + + if (p_fs->dev_ejected) + ret = FFS_MEDIAERR; + +out: + /* release the lock for file system critical section */ + up(&p_fs->v_sem); + + return ret; +} + +/*======================================================================*/ +/* Directory Entry Operations */ +/*======================================================================*/ + +static int exfat_readdir(struct file *filp, struct dir_context *ctx) +{ + struct inode *inode = file_inode(filp); + struct super_block *sb = inode->i_sb; + struct exfat_sb_info *sbi = EXFAT_SB(sb); + struct fs_info_t *p_fs = &(sbi->fs_info); + struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info); + struct dir_entry_t de; + unsigned long inum; + loff_t cpos; + int err = 0; + + __lock_super(sb); + + cpos = ctx->pos; + /* Fake . and .. for the root directory. */ + if ((p_fs->vol_type == EXFAT) || (inode->i_ino == EXFAT_ROOT_INO)) { + while (cpos < 2) { + if (inode->i_ino == EXFAT_ROOT_INO) + inum = EXFAT_ROOT_INO; + else if (cpos == 0) + inum = inode->i_ino; + else /* (cpos == 1) */ + inum = parent_ino(filp->f_path.dentry); + + if (!dir_emit_dots(filp, ctx)) + goto out; + cpos++; + ctx->pos++; + } + if (cpos == 2) + cpos = 0; + } + if (cpos & (DENTRY_SIZE - 1)) { + err = -ENOENT; + goto out; + } + +get_new: + EXFAT_I(inode)->fid.size = i_size_read(inode); + EXFAT_I(inode)->fid.rwoffset = cpos >> DENTRY_SIZE_BITS; + + err = ffsReadDir(inode, &de); + if (err) { + /* at least we tried to read a sector + * move cpos to next sector position (should be aligned) + */ + if (err == FFS_MEDIAERR) { + cpos += 1 << p_bd->sector_size_bits; + cpos &= ~((1 << p_bd->sector_size_bits)-1); + } + + err = -EIO; + goto end_of_dir; + } + + cpos = EXFAT_I(inode)->fid.rwoffset << DENTRY_SIZE_BITS; + + if (!de.Name[0]) + goto end_of_dir; + + if (!memcmp(de.ShortName, DOS_CUR_DIR_NAME, DOS_NAME_LENGTH)) { + inum = inode->i_ino; + } else if (!memcmp(de.ShortName, DOS_PAR_DIR_NAME, DOS_NAME_LENGTH)) { + inum = parent_ino(filp->f_path.dentry); + } else { + loff_t i_pos = ((loff_t) EXFAT_I(inode)->fid.start_clu << 32) | + ((EXFAT_I(inode)->fid.rwoffset-1) & 0xffffffff); + struct inode *tmp = exfat_iget(sb, i_pos); + + if (tmp) { + inum = tmp->i_ino; + iput(tmp); + } else { + inum = iunique(sb, EXFAT_ROOT_INO); + } + } + + if (!dir_emit(ctx, de.Name, strlen(de.Name), inum, + (de.Attr & ATTR_SUBDIR) ? DT_DIR : DT_REG)) + goto out; + + ctx->pos = cpos; + goto get_new; + +end_of_dir: + ctx->pos = cpos; +out: + __unlock_super(sb); + return err; +} + +static int exfat_ioctl_volume_id(struct inode *dir) +{ + struct super_block *sb = dir->i_sb; + struct exfat_sb_info *sbi = EXFAT_SB(sb); + struct fs_info_t *p_fs = &(sbi->fs_info); + + return p_fs->vol_id; +} + +static long exfat_generic_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg) +{ +struct inode *inode = filp->f_path.dentry->d_inode; +#ifdef CONFIG_EXFAT_KERNEL_DEBUG + unsigned int flags; +#endif /* CONFIG_EXFAT_KERNEL_DEBUG */ + + switch (cmd) { + case EXFAT_IOCTL_GET_VOLUME_ID: + return exfat_ioctl_volume_id(inode); +#ifdef CONFIG_EXFAT_KERNEL_DEBUG + case EXFAT_IOC_GET_DEBUGFLAGS: { + struct super_block *sb = inode->i_sb; + struct exfat_sb_info *sbi = EXFAT_SB(sb); + + flags = sbi->debug_flags; + return put_user(flags, (int __user *)arg); + } + case EXFAT_IOC_SET_DEBUGFLAGS: { + struct super_block *sb = inode->i_sb; + struct exfat_sb_info *sbi = EXFAT_SB(sb); + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + if (get_user(flags, (int __user *) arg)) + return -EFAULT; + + __lock_super(sb); + sbi->debug_flags = flags; + __unlock_super(sb); + + return 0; + } +#endif /* CONFIG_EXFAT_KERNEL_DEBUG */ + default: + return -ENOTTY; /* Inappropriate ioctl for device */ + } +} + +static const struct file_operations exfat_dir_operations = { + .llseek = generic_file_llseek, + .read = generic_read_dir, + .iterate = exfat_readdir, + .unlocked_ioctl = exfat_generic_ioctl, + .fsync = generic_file_fsync, +}; + +static int exfat_create(struct inode *dir, struct dentry *dentry, umode_t mode, + bool excl) +{ + struct super_block *sb = dir->i_sb; + struct inode *inode; + struct file_id_t fid; + loff_t i_pos; + int err; + + __lock_super(sb); + + pr_debug("%s entered\n", __func__); + + err = ffsCreateFile(dir, (u8 *) dentry->d_name.name, FM_REGULAR, &fid); + if (err) { + if (err == FFS_INVALIDPATH) + err = -EINVAL; + else if (err == FFS_FILEEXIST) + err = -EEXIST; + else if (err == FFS_FULL) + err = -ENOSPC; + else if (err == FFS_NAMETOOLONG) + err = -ENAMETOOLONG; + else + err = -EIO; + goto out; + } + INC_IVERSION(dir); + dir->i_ctime = dir->i_mtime = dir->i_atime = current_time(dir); + if (IS_DIRSYNC(dir)) + (void) exfat_sync_inode(dir); + else + mark_inode_dirty(dir); + + i_pos = ((loff_t) fid.dir.dir << 32) | (fid.entry & 0xffffffff); + + inode = exfat_build_inode(sb, &fid, i_pos); + if (IS_ERR(inode)) { + err = PTR_ERR(inode); + goto out; + } + INC_IVERSION(inode); + inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode); + /* + * timestamp is already written, so mark_inode_dirty() is unnecessary. + */ + + dentry->d_time = GET_IVERSION(dentry->d_parent->d_inode); + d_instantiate(dentry, inode); + +out: + __unlock_super(sb); + pr_debug("%s exited\n", __func__); + return err; +} + +static int exfat_find(struct inode *dir, struct qstr *qname, + struct file_id_t *fid) +{ + int err; + + if (qname->len == 0) + return -ENOENT; + + err = ffsLookupFile(dir, (u8 *) qname->name, fid); + if (err) + return -ENOENT; + + return 0; +} + +static int exfat_d_anon_disconn(struct dentry *dentry) +{ + return IS_ROOT(dentry) && (dentry->d_flags & DCACHE_DISCONNECTED); +} + +static struct dentry *exfat_lookup(struct inode *dir, struct dentry *dentry, + unsigned int flags) +{ + struct super_block *sb = dir->i_sb; + struct inode *inode; + struct dentry *alias; + int err; + struct file_id_t fid; + loff_t i_pos; + u64 ret; + mode_t i_mode; + + __lock_super(sb); + pr_debug("%s entered\n", __func__); + err = exfat_find(dir, &dentry->d_name, &fid); + if (err) { + if (err == -ENOENT) { + inode = NULL; + goto out; + } + goto error; + } + + i_pos = ((loff_t) fid.dir.dir << 32) | (fid.entry & 0xffffffff); + inode = exfat_build_inode(sb, &fid, i_pos); + if (IS_ERR(inode)) { + err = PTR_ERR(inode); + goto error; + } + + i_mode = inode->i_mode; + if (S_ISLNK(i_mode) && !EXFAT_I(inode)->target) { + EXFAT_I(inode)->target = kmalloc(i_size_read(inode) + 1, + GFP_KERNEL); + if (!EXFAT_I(inode)->target) { + err = -ENOMEM; + goto error; + } + ffsReadFile(dir, &fid, EXFAT_I(inode)->target, + i_size_read(inode), &ret); + *(EXFAT_I(inode)->target + i_size_read(inode)) = '\0'; + } + + alias = d_find_alias(inode); + if (alias && !exfat_d_anon_disconn(alias)) { + BUG_ON(d_unhashed(alias)); + if (!S_ISDIR(i_mode)) + d_move(alias, dentry); + iput(inode); + __unlock_super(sb); + pr_debug("%s exited 1\n", __func__); + return alias; + } + dput(alias); +out: + __unlock_super(sb); + dentry->d_time = GET_IVERSION(dentry->d_parent->d_inode); + dentry = d_splice_alias(inode, dentry); + if (dentry) + dentry->d_time = GET_IVERSION(dentry->d_parent->d_inode); + pr_debug("%s exited 2\n", __func__); + return dentry; + +error: + __unlock_super(sb); + pr_debug("%s exited 3\n", __func__); + return ERR_PTR(err); +} + +static inline unsigned long exfat_hash(loff_t i_pos) +{ + return hash_32(i_pos, EXFAT_HASH_BITS); +} + +static void exfat_attach(struct inode *inode, loff_t i_pos) +{ + struct exfat_sb_info *sbi = EXFAT_SB(inode->i_sb); + struct hlist_head *head = sbi->inode_hashtable + exfat_hash(i_pos); + + spin_lock(&sbi->inode_hash_lock); + EXFAT_I(inode)->i_pos = i_pos; + hlist_add_head(&EXFAT_I(inode)->i_hash_fat, head); + spin_unlock(&sbi->inode_hash_lock); +} + +static void exfat_detach(struct inode *inode) +{ + struct exfat_sb_info *sbi = EXFAT_SB(inode->i_sb); + + spin_lock(&sbi->inode_hash_lock); + hlist_del_init(&EXFAT_I(inode)->i_hash_fat); + EXFAT_I(inode)->i_pos = 0; + spin_unlock(&sbi->inode_hash_lock); +} + +static int exfat_unlink(struct inode *dir, struct dentry *dentry) +{ + struct inode *inode = dentry->d_inode; + struct super_block *sb = dir->i_sb; + int err; + + __lock_super(sb); + + pr_debug("%s entered\n", __func__); + + EXFAT_I(inode)->fid.size = i_size_read(inode); + + err = ffsRemoveFile(dir, &(EXFAT_I(inode)->fid)); + if (err) { + if (err == FFS_PERMISSIONERR) + err = -EPERM; + else + err = -EIO; + goto out; + } + INC_IVERSION(dir); + dir->i_mtime = dir->i_atime = current_time(dir); + if (IS_DIRSYNC(dir)) + (void) exfat_sync_inode(dir); + else + mark_inode_dirty(dir); + + clear_nlink(inode); + inode->i_mtime = inode->i_atime = current_time(inode); + exfat_detach(inode); + remove_inode_hash(inode); + +out: + __unlock_super(sb); + pr_debug("%s exited\n", __func__); + return err; +} + +static int exfat_symlink(struct inode *dir, struct dentry *dentry, + const char *target) +{ + struct super_block *sb = dir->i_sb; + struct inode *inode; + struct file_id_t fid; + loff_t i_pos; + int err; + u64 len = (u64) strlen(target); + u64 ret; + + __lock_super(sb); + + pr_debug("%s entered\n", __func__); + + err = ffsCreateFile(dir, (u8 *) dentry->d_name.name, FM_SYMLINK, &fid); + if (err) { + if (err == FFS_INVALIDPATH) + err = -EINVAL; + else if (err == FFS_FILEEXIST) + err = -EEXIST; + else if (err == FFS_FULL) + err = -ENOSPC; + else + err = -EIO; + goto out; + } + + err = ffsWriteFile(dir, &fid, (char *) target, len, &ret); + + if (err) { + ffsRemoveFile(dir, &fid); + + if (err == FFS_FULL) + err = -ENOSPC; + else + err = -EIO; + goto out; + } + + INC_IVERSION(dir); + dir->i_ctime = dir->i_mtime = dir->i_atime = current_time(dir); + if (IS_DIRSYNC(dir)) + (void) exfat_sync_inode(dir); + else + mark_inode_dirty(dir); + + i_pos = ((loff_t) fid.dir.dir << 32) | (fid.entry & 0xffffffff); + + inode = exfat_build_inode(sb, &fid, i_pos); + if (IS_ERR(inode)) { + err = PTR_ERR(inode); + goto out; + } + INC_IVERSION(inode); + inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode); + /* timestamp is already written, so mark_inode_dirty() is unneeded. */ + + EXFAT_I(inode)->target = kmalloc(len+1, GFP_KERNEL); + if (!EXFAT_I(inode)->target) { + err = -ENOMEM; + goto out; + } + memcpy(EXFAT_I(inode)->target, target, len+1); + + dentry->d_time = GET_IVERSION(dentry->d_parent->d_inode); + d_instantiate(dentry, inode); + +out: + __unlock_super(sb); + pr_debug("%s exited\n", __func__); + return err; +} + +static int exfat_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) +{ + struct super_block *sb = dir->i_sb; + struct inode *inode; + struct file_id_t fid; + loff_t i_pos; + int err; + + __lock_super(sb); + + pr_debug("%s entered\n", __func__); + + err = ffsCreateDir(dir, (u8 *) dentry->d_name.name, &fid); + if (err) { + if (err == FFS_INVALIDPATH) + err = -EINVAL; + else if (err == FFS_FILEEXIST) + err = -EEXIST; + else if (err == FFS_FULL) + err = -ENOSPC; + else if (err == FFS_NAMETOOLONG) + err = -ENAMETOOLONG; + else + err = -EIO; + goto out; + } + INC_IVERSION(dir); + dir->i_ctime = dir->i_mtime = dir->i_atime = current_time(dir); + if (IS_DIRSYNC(dir)) + (void) exfat_sync_inode(dir); + else + mark_inode_dirty(dir); + inc_nlink(dir); + + i_pos = ((loff_t) fid.dir.dir << 32) | (fid.entry & 0xffffffff); + + inode = exfat_build_inode(sb, &fid, i_pos); + if (IS_ERR(inode)) { + err = PTR_ERR(inode); + goto out; + } + INC_IVERSION(inode); + inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode); + /* timestamp is already written, so mark_inode_dirty() is unneeded. */ + + dentry->d_time = GET_IVERSION(dentry->d_parent->d_inode); + d_instantiate(dentry, inode); + +out: + __unlock_super(sb); + pr_debug("%s exited\n", __func__); + return err; +} + +static int exfat_rmdir(struct inode *dir, struct dentry *dentry) +{ + struct inode *inode = dentry->d_inode; + struct super_block *sb = dir->i_sb; + int err; + + __lock_super(sb); + + pr_debug("%s entered\n", __func__); + + EXFAT_I(inode)->fid.size = i_size_read(inode); + + err = ffsRemoveDir(dir, &(EXFAT_I(inode)->fid)); + if (err) { + if (err == FFS_INVALIDPATH) + err = -EINVAL; + else if (err == FFS_FILEEXIST) + err = -ENOTEMPTY; + else if (err == FFS_NOTFOUND) + err = -ENOENT; + else if (err == FFS_DIRBUSY) + err = -EBUSY; + else + err = -EIO; + goto out; + } + INC_IVERSION(dir); + dir->i_mtime = dir->i_atime = current_time(dir); + if (IS_DIRSYNC(dir)) + (void) exfat_sync_inode(dir); + else + mark_inode_dirty(dir); + drop_nlink(dir); + + clear_nlink(inode); + inode->i_mtime = inode->i_atime = current_time(inode); + exfat_detach(inode); + remove_inode_hash(inode); + +out: + __unlock_super(sb); + pr_debug("%s exited\n", __func__); + return err; +} + +static int exfat_rename(struct inode *old_dir, struct dentry *old_dentry, + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags) +{ + struct inode *old_inode, *new_inode; + struct super_block *sb = old_dir->i_sb; + loff_t i_pos; + int err; + + if (flags) + return -EINVAL; + + __lock_super(sb); + + pr_debug("%s entered\n", __func__); + + old_inode = old_dentry->d_inode; + new_inode = new_dentry->d_inode; + + EXFAT_I(old_inode)->fid.size = i_size_read(old_inode); + + err = ffsMoveFile(old_dir, &(EXFAT_I(old_inode)->fid), new_dir, + new_dentry); + if (err) { + if (err == FFS_PERMISSIONERR) + err = -EPERM; + else if (err == FFS_INVALIDPATH) + err = -EINVAL; + else if (err == FFS_FILEEXIST) + err = -EEXIST; + else if (err == FFS_NOTFOUND) + err = -ENOENT; + else if (err == FFS_FULL) + err = -ENOSPC; + else + err = -EIO; + goto out; + } + INC_IVERSION(new_dir); + new_dir->i_ctime = new_dir->i_mtime = new_dir->i_atime = + current_time(new_dir); + if (IS_DIRSYNC(new_dir)) + (void) exfat_sync_inode(new_dir); + else + mark_inode_dirty(new_dir); + + i_pos = ((loff_t) EXFAT_I(old_inode)->fid.dir.dir << 32) | + (EXFAT_I(old_inode)->fid.entry & 0xffffffff); + + exfat_detach(old_inode); + exfat_attach(old_inode, i_pos); + if (IS_DIRSYNC(new_dir)) + (void) exfat_sync_inode(old_inode); + else + mark_inode_dirty(old_inode); + + if ((S_ISDIR(old_inode->i_mode)) && (old_dir != new_dir)) { + drop_nlink(old_dir); + if (!new_inode) + inc_nlink(new_dir); + } + INC_IVERSION(old_dir); + old_dir->i_ctime = old_dir->i_mtime = current_time(old_dir); + if (IS_DIRSYNC(old_dir)) + (void) exfat_sync_inode(old_dir); + else + mark_inode_dirty(old_dir); + + if (new_inode) { + exfat_detach(new_inode); + drop_nlink(new_inode); + if (S_ISDIR(new_inode->i_mode)) + drop_nlink(new_inode); + new_inode->i_ctime = current_time(new_inode); + } + +out: + __unlock_super(sb); + pr_debug("%s exited\n", __func__); + return err; +} + +static int exfat_cont_expand(struct inode *inode, loff_t size) +{ + struct address_space *mapping = inode->i_mapping; + loff_t start = i_size_read(inode), count = size - i_size_read(inode); + int err, err2; + + err = generic_cont_expand_simple(inode, size); + if (err != 0) + return err; + + inode->i_ctime = inode->i_mtime = current_time(inode); + mark_inode_dirty(inode); + + if (IS_SYNC(inode)) { + err = filemap_fdatawrite_range(mapping, start, + start + count - 1); + err2 = sync_mapping_buffers(mapping); + err = (err) ? (err) : (err2); + err2 = write_inode_now(inode, 1); + err = (err) ? (err) : (err2); + if (!err) + err = filemap_fdatawait_range(mapping, start, + start + count - 1); + } + return err; +} + +static int exfat_allow_set_time(struct exfat_sb_info *sbi, struct inode *inode) +{ + mode_t allow_utime = sbi->options.allow_utime; + + if (!uid_eq(current_fsuid(), inode->i_uid)) { + if (in_group_p(inode->i_gid)) + allow_utime >>= 3; + if (allow_utime & MAY_WRITE) + return 1; + } + + /* use a default check */ + return 0; +} + +static int exfat_sanitize_mode(const struct exfat_sb_info *sbi, + struct inode *inode, umode_t *mode_ptr) +{ + mode_t i_mode, mask, perm; + + i_mode = inode->i_mode; + + if (S_ISREG(i_mode) || S_ISLNK(i_mode)) + mask = sbi->options.fs_fmask; + else + mask = sbi->options.fs_dmask; + + perm = *mode_ptr & ~(S_IFMT | mask); + + /* Of the r and x bits, all (subject to umask) must be present.*/ + if ((perm & 0555) != (i_mode & 0555)) + return -EPERM; + + if (exfat_mode_can_hold_ro(inode)) { + /* + * Of the w bits, either all (subject to umask) or none must be + * present. + */ + if ((perm & 0222) && ((perm & 0222) != (0222 & ~mask))) + return -EPERM; + } else { + /* + * If exfat_mode_can_hold_ro(inode) is false, can't change w + * bits. + */ + if ((perm & 0222) != (0222 & ~mask)) + return -EPERM; + } + + *mode_ptr &= S_IFMT | perm; + + return 0; +} + +static void exfat_truncate(struct inode *inode, loff_t old_size) +{ + struct super_block *sb = inode->i_sb; + struct exfat_sb_info *sbi = EXFAT_SB(sb); + struct fs_info_t *p_fs = &(sbi->fs_info); + int err; + + __lock_super(sb); + + /* + * This protects against truncating a file bigger than it was then + * trying to write into the hole. + */ + if (EXFAT_I(inode)->mmu_private > i_size_read(inode)) + EXFAT_I(inode)->mmu_private = i_size_read(inode); + + if (EXFAT_I(inode)->fid.start_clu == 0) + goto out; + + err = ffsTruncateFile(inode, old_size, i_size_read(inode)); + if (err) + goto out; + + inode->i_ctime = inode->i_mtime = current_time(inode); + if (IS_DIRSYNC(inode)) + (void) exfat_sync_inode(inode); + else + mark_inode_dirty(inode); + + inode->i_blocks = ((i_size_read(inode) + (p_fs->cluster_size - 1)) & + ~((loff_t)p_fs->cluster_size - 1)) >> 9; +out: + __unlock_super(sb); +} + +static int exfat_setattr(struct dentry *dentry, struct iattr *attr) +{ + struct exfat_sb_info *sbi = EXFAT_SB(dentry->d_sb); + struct inode *inode = dentry->d_inode; + unsigned int ia_valid; + int error; + loff_t old_size; + + pr_debug("%s entered\n", __func__); + + if ((attr->ia_valid & ATTR_SIZE) + && (attr->ia_size > i_size_read(inode))) { + error = exfat_cont_expand(inode, attr->ia_size); + if (error || attr->ia_valid == ATTR_SIZE) + return error; + attr->ia_valid &= ~ATTR_SIZE; + } + + ia_valid = attr->ia_valid; + + if ((ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)) + && exfat_allow_set_time(sbi, inode)) { + attr->ia_valid &= ~(ATTR_MTIME_SET | + ATTR_ATIME_SET | + ATTR_TIMES_SET); + } + + error = setattr_prepare(dentry, attr); + attr->ia_valid = ia_valid; + if (error) + return error; + + if (((attr->ia_valid & ATTR_UID) && + (!uid_eq(attr->ia_uid, sbi->options.fs_uid))) || + ((attr->ia_valid & ATTR_GID) && + (!gid_eq(attr->ia_gid, sbi->options.fs_gid))) || + ((attr->ia_valid & ATTR_MODE) && + (attr->ia_mode & ~(S_IFREG | S_IFLNK | S_IFDIR | 0777)))) { + return -EPERM; + } + + /* + * We don't return -EPERM here. Yes, strange, but this is too + * old behavior. + */ + if (attr->ia_valid & ATTR_MODE) { + if (exfat_sanitize_mode(sbi, inode, &attr->ia_mode) < 0) + attr->ia_valid &= ~ATTR_MODE; + } + + EXFAT_I(inode)->fid.size = i_size_read(inode); + + if (attr->ia_valid & ATTR_SIZE) { + old_size = i_size_read(inode); + down_write(&EXFAT_I(inode)->truncate_lock); + truncate_setsize(inode, attr->ia_size); + exfat_truncate(inode, old_size); + up_write(&EXFAT_I(inode)->truncate_lock); + } + setattr_copy(inode, attr); + mark_inode_dirty(inode); + + pr_debug("%s exited\n", __func__); + return error; +} + +static int exfat_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) +{ + struct inode *inode = path->dentry->d_inode; + + pr_debug("%s entered\n", __func__); + + generic_fillattr(inode, stat); + stat->blksize = EXFAT_SB(inode->i_sb)->fs_info.cluster_size; + + pr_debug("%s exited\n", __func__); + return 0; +} + +static const struct inode_operations exfat_dir_inode_operations = { + .create = exfat_create, + .lookup = exfat_lookup, + .unlink = exfat_unlink, + .symlink = exfat_symlink, + .mkdir = exfat_mkdir, + .rmdir = exfat_rmdir, + .rename = exfat_rename, + .setattr = exfat_setattr, + .getattr = exfat_getattr, +}; + +/*======================================================================*/ +/* File Operations */ +/*======================================================================*/ +static const char *exfat_get_link(struct dentry *dentry, struct inode *inode, + struct delayed_call *done) +{ + struct exfat_inode_info *ei = EXFAT_I(inode); + + if (ei->target != NULL) { + char *cookie = ei->target; + + if (cookie != NULL) + return (char *)(ei->target); + } + return NULL; +} + +static const struct inode_operations exfat_symlink_inode_operations = { + .get_link = exfat_get_link, +}; + +static int exfat_file_release(struct inode *inode, struct file *filp) +{ + struct super_block *sb = inode->i_sb; + + EXFAT_I(inode)->fid.size = i_size_read(inode); + ffsSyncVol(sb, false); + return 0; +} + +static const struct file_operations exfat_file_operations = { + .llseek = generic_file_llseek, + .read_iter = generic_file_read_iter, + .write_iter = generic_file_write_iter, + .mmap = generic_file_mmap, + .release = exfat_file_release, + .unlocked_ioctl = exfat_generic_ioctl, + .fsync = generic_file_fsync, + .splice_read = generic_file_splice_read, +}; + +static const struct inode_operations exfat_file_inode_operations = { + .setattr = exfat_setattr, + .getattr = exfat_getattr, +}; + +/*======================================================================*/ +/* Address Space Operations */ +/*======================================================================*/ + +static int exfat_bmap(struct inode *inode, sector_t sector, sector_t *phys, + unsigned long *mapped_blocks, int *create) +{ + struct super_block *sb = inode->i_sb; + struct exfat_sb_info *sbi = EXFAT_SB(sb); + struct fs_info_t *p_fs = &(sbi->fs_info); + struct bd_info_t *p_bd = &(sbi->bd_info); + const unsigned long blocksize = sb->s_blocksize; + const unsigned char blocksize_bits = sb->s_blocksize_bits; + sector_t last_block; + int err, clu_offset, sec_offset; + unsigned int cluster; + + *phys = 0; + *mapped_blocks = 0; + + if ((p_fs->vol_type == FAT12) || (p_fs->vol_type == FAT16)) { + if (inode->i_ino == EXFAT_ROOT_INO) { + if (sector < + (p_fs->dentries_in_root >> + (p_bd->sector_size_bits-DENTRY_SIZE_BITS))) { + *phys = sector + p_fs->root_start_sector; + *mapped_blocks = 1; + } + return 0; + } + } + + last_block = (i_size_read(inode) + (blocksize - 1)) >> blocksize_bits; + if (sector >= last_block) { + if (*create == 0) + return 0; + } else { + *create = 0; + } + + /* cluster offset */ + clu_offset = sector >> p_fs->sectors_per_clu_bits; + + /* sector offset in cluster */ + sec_offset = sector & (p_fs->sectors_per_clu - 1); + + EXFAT_I(inode)->fid.size = i_size_read(inode); + + err = ffsMapCluster(inode, clu_offset, &cluster); + + if (err) { + if (err == FFS_FULL) + return -ENOSPC; + else + return -EIO; + } else if (cluster != CLUSTER_32(~0)) { + *phys = START_SECTOR(cluster) + sec_offset; + *mapped_blocks = p_fs->sectors_per_clu - sec_offset; + } + + return 0; +} + +static int exfat_get_block(struct inode *inode, sector_t iblock, + struct buffer_head *bh_result, int create) +{ + struct super_block *sb = inode->i_sb; + unsigned long max_blocks = bh_result->b_size >> inode->i_blkbits; + int err; + unsigned long mapped_blocks; + sector_t phys; + + __lock_super(sb); + + err = exfat_bmap(inode, iblock, &phys, &mapped_blocks, &create); + if (err) { + __unlock_super(sb); + return err; + } + + if (phys) { + max_blocks = min(mapped_blocks, max_blocks); + if (create) { + EXFAT_I(inode)->mmu_private += max_blocks << + sb->s_blocksize_bits; + set_buffer_new(bh_result); + } + map_bh(bh_result, sb, phys); + } + + bh_result->b_size = max_blocks << sb->s_blocksize_bits; + __unlock_super(sb); + + return 0; +} + +static int exfat_readpage(struct file *file, struct page *page) +{ + return mpage_readpage(page, exfat_get_block); +} + +static int exfat_readpages(struct file *file, struct address_space *mapping, + struct list_head *pages, unsigned int nr_pages) +{ + return mpage_readpages(mapping, pages, nr_pages, exfat_get_block); +} + +static int exfat_writepage(struct page *page, struct writeback_control *wbc) +{ + return block_write_full_page(page, exfat_get_block, wbc); +} + +static int exfat_writepages(struct address_space *mapping, + struct writeback_control *wbc) +{ + return mpage_writepages(mapping, wbc, exfat_get_block); +} + +static void exfat_write_failed(struct address_space *mapping, loff_t to) +{ + struct inode *inode = mapping->host; + + if (to > i_size_read(inode)) { + truncate_pagecache(inode, i_size_read(inode)); + EXFAT_I(inode)->fid.size = i_size_read(inode); + exfat_truncate(inode, i_size_read(inode)); + } +} + +static int exfat_write_begin(struct file *file, struct address_space *mapping, + loff_t pos, unsigned int len, unsigned int flags, + struct page **pagep, void **fsdata) +{ + int ret; + + *pagep = NULL; + ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata, + exfat_get_block, + &EXFAT_I(mapping->host)->mmu_private); + + if (ret < 0) + exfat_write_failed(mapping, pos+len); + return ret; +} + +static int exfat_write_end(struct file *file, struct address_space *mapping, + loff_t pos, unsigned int len, unsigned int copied, + struct page *pagep, void *fsdata) +{ + struct inode *inode = mapping->host; + struct file_id_t *fid = &(EXFAT_I(inode)->fid); + int err; + + err = generic_write_end(file, mapping, pos, len, copied, pagep, fsdata); + + if (err < len) + exfat_write_failed(mapping, pos+len); + + if (!(err < 0) && !(fid->attr & ATTR_ARCHIVE)) { + inode->i_mtime = inode->i_ctime = current_time(inode); + fid->attr |= ATTR_ARCHIVE; + mark_inode_dirty(inode); + } + return err; +} + +static ssize_t exfat_direct_IO(struct kiocb *iocb, struct iov_iter *iter) +{ + struct inode *inode = iocb->ki_filp->f_mapping->host; + struct address_space *mapping = iocb->ki_filp->f_mapping; + ssize_t ret; + int rw; + + rw = iov_iter_rw(iter); + + if (rw == WRITE) { + if (EXFAT_I(inode)->mmu_private < iov_iter_count(iter)) + return 0; + } + ret = blockdev_direct_IO(iocb, inode, iter, exfat_get_block); + + if ((ret < 0) && (rw & WRITE)) + exfat_write_failed(mapping, iov_iter_count(iter)); + return ret; +} + +static sector_t _exfat_bmap(struct address_space *mapping, sector_t block) +{ + sector_t blocknr; + + /* exfat_get_cluster() assumes the requested blocknr isn't truncated. */ + down_read(&EXFAT_I(mapping->host)->truncate_lock); + blocknr = generic_block_bmap(mapping, block, exfat_get_block); + up_read(&EXFAT_I(mapping->host)->truncate_lock); + + return blocknr; +} + +static const struct address_space_operations exfat_aops = { + .readpage = exfat_readpage, + .readpages = exfat_readpages, + .writepage = exfat_writepage, + .writepages = exfat_writepages, + .write_begin = exfat_write_begin, + .write_end = exfat_write_end, + .direct_IO = exfat_direct_IO, + .bmap = _exfat_bmap +}; + +/*======================================================================*/ +/* Super Operations */ +/*======================================================================*/ + +static struct inode *exfat_iget(struct super_block *sb, loff_t i_pos) +{ + struct exfat_sb_info *sbi = EXFAT_SB(sb); + struct exfat_inode_info *info; + struct hlist_head *head = sbi->inode_hashtable + exfat_hash(i_pos); + struct inode *inode = NULL; + + spin_lock(&sbi->inode_hash_lock); + hlist_for_each_entry(info, head, i_hash_fat) { + BUG_ON(info->vfs_inode.i_sb != sb); + + if (i_pos != info->i_pos) + continue; + inode = igrab(&info->vfs_inode); + if (inode) + break; + } + spin_unlock(&sbi->inode_hash_lock); + return inode; +} + +/* doesn't deal with root inode */ +static int exfat_fill_inode(struct inode *inode, struct file_id_t *fid) +{ + struct exfat_sb_info *sbi = EXFAT_SB(inode->i_sb); + struct fs_info_t *p_fs = &(sbi->fs_info); + struct dir_entry_t info; + + memcpy(&(EXFAT_I(inode)->fid), fid, sizeof(struct file_id_t)); + + ffsReadStat(inode, &info); + + EXFAT_I(inode)->i_pos = 0; + EXFAT_I(inode)->target = NULL; + inode->i_uid = sbi->options.fs_uid; + inode->i_gid = sbi->options.fs_gid; + INC_IVERSION(inode); + inode->i_generation = get_seconds(); + + if (info.Attr & ATTR_SUBDIR) { /* directory */ + inode->i_generation &= ~1; + inode->i_mode = exfat_make_mode(sbi, info.Attr, 0777); + inode->i_op = &exfat_dir_inode_operations; + inode->i_fop = &exfat_dir_operations; + + i_size_write(inode, info.Size); + EXFAT_I(inode)->mmu_private = i_size_read(inode); + set_nlink(inode, info.NumSubdirs); + } else if (info.Attr & ATTR_SYMLINK) { /* symbolic link */ + inode->i_generation |= 1; + inode->i_mode = exfat_make_mode(sbi, info.Attr, 0777); + inode->i_op = &exfat_symlink_inode_operations; + + i_size_write(inode, info.Size); + EXFAT_I(inode)->mmu_private = i_size_read(inode); + } else { /* regular file */ + inode->i_generation |= 1; + inode->i_mode = exfat_make_mode(sbi, info.Attr, 0777); + inode->i_op = &exfat_file_inode_operations; + inode->i_fop = &exfat_file_operations; + inode->i_mapping->a_ops = &exfat_aops; + inode->i_mapping->nrpages = 0; + + i_size_write(inode, info.Size); + EXFAT_I(inode)->mmu_private = i_size_read(inode); + } + exfat_save_attr(inode, info.Attr); + + inode->i_blocks = ((i_size_read(inode) + (p_fs->cluster_size - 1)) + & ~((loff_t)p_fs->cluster_size - 1)) >> 9; + + exfat_time_fat2unix(sbi, &inode->i_mtime, &info.ModifyTimestamp); + exfat_time_fat2unix(sbi, &inode->i_ctime, &info.CreateTimestamp); + exfat_time_fat2unix(sbi, &inode->i_atime, &info.AccessTimestamp); + + return 0; +} + +static struct inode *exfat_build_inode(struct super_block *sb, + struct file_id_t *fid, loff_t i_pos) +{ + struct inode *inode; + int err; + + inode = exfat_iget(sb, i_pos); + if (inode) + goto out; + inode = new_inode(sb); + if (!inode) { + inode = ERR_PTR(-ENOMEM); + goto out; + } + inode->i_ino = iunique(sb, EXFAT_ROOT_INO); + SET_IVERSION(inode, 1); + err = exfat_fill_inode(inode, fid); + if (err) { + iput(inode); + inode = ERR_PTR(err); + goto out; + } + exfat_attach(inode, i_pos); + insert_inode_hash(inode); +out: + return inode; +} + +static int exfat_sync_inode(struct inode *inode) +{ + return exfat_write_inode(inode, NULL); +} + +static struct inode *exfat_alloc_inode(struct super_block *sb) +{ + struct exfat_inode_info *ei; + + ei = kmem_cache_alloc(exfat_inode_cachep, GFP_NOFS); + if (!ei) + return NULL; + + init_rwsem(&ei->truncate_lock); + + return &ei->vfs_inode; +} + +static void exfat_destroy_inode(struct inode *inode) +{ + if (EXFAT_I(inode)->target) + kfree(EXFAT_I(inode)->target); + EXFAT_I(inode)->target = NULL; + + kmem_cache_free(exfat_inode_cachep, EXFAT_I(inode)); +} + +static int exfat_write_inode(struct inode *inode, struct writeback_control *wbc) +{ + struct super_block *sb = inode->i_sb; + struct exfat_sb_info *sbi = EXFAT_SB(sb); + struct dir_entry_t info; + + if (inode->i_ino == EXFAT_ROOT_INO) + return 0; + + info.Attr = exfat_make_attr(inode); + info.Size = i_size_read(inode); + + exfat_time_unix2fat(sbi, &inode->i_mtime, &info.ModifyTimestamp); + exfat_time_unix2fat(sbi, &inode->i_ctime, &info.CreateTimestamp); + exfat_time_unix2fat(sbi, &inode->i_atime, &info.AccessTimestamp); + + ffsWriteStat(inode, &info); + + return 0; +} + +static void exfat_evict_inode(struct inode *inode) +{ + truncate_inode_pages(&inode->i_data, 0); + + if (!inode->i_nlink) + i_size_write(inode, 0); + invalidate_inode_buffers(inode); + clear_inode(inode); + exfat_detach(inode); + + remove_inode_hash(inode); +} + +static void exfat_free_super(struct exfat_sb_info *sbi) +{ + if (sbi->nls_disk) + unload_nls(sbi->nls_disk); + if (sbi->nls_io) + unload_nls(sbi->nls_io); + if (sbi->options.iocharset != exfat_default_iocharset) + kfree(sbi->options.iocharset); + /* mutex_init is in exfat_fill_super function. only for 3.7+ */ + mutex_destroy(&sbi->s_lock); + kfree(sbi); +} + +static void exfat_put_super(struct super_block *sb) +{ + struct exfat_sb_info *sbi = EXFAT_SB(sb); + + if (__is_sb_dirty(sb)) + exfat_write_super(sb); + + ffsUmountVol(sb); + + sb->s_fs_info = NULL; + exfat_free_super(sbi); +} + +static void exfat_write_super(struct super_block *sb) +{ + __lock_super(sb); + + __set_sb_clean(sb); + + if (!sb_rdonly(sb)) + ffsSyncVol(sb, true); + + __unlock_super(sb); +} + +static int exfat_sync_fs(struct super_block *sb, int wait) +{ + int err = 0; + + if (__is_sb_dirty(sb)) { + __lock_super(sb); + __set_sb_clean(sb); + err = ffsSyncVol(sb, true); + __unlock_super(sb); + } + + return err; +} + +static int exfat_statfs(struct dentry *dentry, struct kstatfs *buf) +{ + struct super_block *sb = dentry->d_sb; + u64 id = huge_encode_dev(sb->s_bdev->bd_dev); + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + struct vol_info_t info; + + if (p_fs->used_clusters == (u32) ~0) { + if (ffsGetVolInfo(sb, &info) == FFS_MEDIAERR) + return -EIO; + + } else { + info.FatType = p_fs->vol_type; + info.ClusterSize = p_fs->cluster_size; + info.NumClusters = p_fs->num_clusters - 2; + info.UsedClusters = p_fs->used_clusters; + info.FreeClusters = info.NumClusters - info.UsedClusters; + + if (p_fs->dev_ejected) + pr_info("[EXFAT] statfs on device that is ejected\n"); + } + + buf->f_type = sb->s_magic; + buf->f_bsize = info.ClusterSize; + buf->f_blocks = info.NumClusters; + buf->f_bfree = info.FreeClusters; + buf->f_bavail = info.FreeClusters; + buf->f_fsid.val[0] = (u32)id; + buf->f_fsid.val[1] = (u32)(id >> 32); + buf->f_namelen = 260; + + return 0; +} + +static int exfat_remount(struct super_block *sb, int *flags, char *data) +{ + *flags |= SB_NODIRATIME; + return 0; +} + +static int exfat_show_options(struct seq_file *m, struct dentry *root) +{ + struct exfat_sb_info *sbi = EXFAT_SB(root->d_sb); + struct exfat_mount_options *opts = &sbi->options; + + if (__kuid_val(opts->fs_uid)) + seq_printf(m, ",uid=%u", __kuid_val(opts->fs_uid)); + if (__kgid_val(opts->fs_gid)) + seq_printf(m, ",gid=%u", __kgid_val(opts->fs_gid)); + seq_printf(m, ",fmask=%04o", opts->fs_fmask); + seq_printf(m, ",dmask=%04o", opts->fs_dmask); + if (opts->allow_utime) + seq_printf(m, ",allow_utime=%04o", opts->allow_utime); + if (sbi->nls_disk) + seq_printf(m, ",codepage=%s", sbi->nls_disk->charset); + if (sbi->nls_io) + seq_printf(m, ",iocharset=%s", sbi->nls_io->charset); + seq_printf(m, ",namecase=%u", opts->casesensitive); + if (opts->errors == EXFAT_ERRORS_CONT) + seq_puts(m, ",errors=continue"); + else if (opts->errors == EXFAT_ERRORS_PANIC) + seq_puts(m, ",errors=panic"); + else + seq_puts(m, ",errors=remount-ro"); +#ifdef CONFIG_EXFAT_DISCARD + if (opts->discard) + seq_puts(m, ",discard"); +#endif + return 0; +} + +static const struct super_operations exfat_sops = { + .alloc_inode = exfat_alloc_inode, + .destroy_inode = exfat_destroy_inode, + .write_inode = exfat_write_inode, + .evict_inode = exfat_evict_inode, + .put_super = exfat_put_super, + .sync_fs = exfat_sync_fs, + .statfs = exfat_statfs, + .remount_fs = exfat_remount, + .show_options = exfat_show_options, +}; + +/*======================================================================*/ +/* Export Operations */ +/*======================================================================*/ + +static struct inode *exfat_nfs_get_inode(struct super_block *sb, u64 ino, + u32 generation) +{ + struct inode *inode = NULL; + + if (ino < EXFAT_ROOT_INO) + return inode; + inode = ilookup(sb, ino); + + if (inode && generation && (inode->i_generation != generation)) { + iput(inode); + inode = NULL; + } + + return inode; +} + +static struct dentry *exfat_fh_to_dentry(struct super_block *sb, + struct fid *fid, int fh_len, + int fh_type) +{ + return generic_fh_to_dentry(sb, fid, fh_len, fh_type, + exfat_nfs_get_inode); +} + +static struct dentry *exfat_fh_to_parent(struct super_block *sb, + struct fid *fid, int fh_len, + int fh_type) +{ + return generic_fh_to_parent(sb, fid, fh_len, fh_type, + exfat_nfs_get_inode); +} + +static const struct export_operations exfat_export_ops = { + .fh_to_dentry = exfat_fh_to_dentry, + .fh_to_parent = exfat_fh_to_parent, +}; + +/*======================================================================*/ +/* Super Block Read Operations */ +/*======================================================================*/ + +enum { + Opt_uid, + Opt_gid, + Opt_umask, + Opt_dmask, + Opt_fmask, + Opt_allow_utime, + Opt_codepage, + Opt_charset, + Opt_namecase, + Opt_debug, + Opt_err_cont, + Opt_err_panic, + Opt_err_ro, + Opt_utf8_hack, + Opt_err, +#ifdef CONFIG_EXFAT_DISCARD + Opt_discard, +#endif /* EXFAT_CONFIG_DISCARD */ +}; + +static const match_table_t exfat_tokens = { + {Opt_uid, "uid=%u"}, + {Opt_gid, "gid=%u"}, + {Opt_umask, "umask=%o"}, + {Opt_dmask, "dmask=%o"}, + {Opt_fmask, "fmask=%o"}, + {Opt_allow_utime, "allow_utime=%o"}, + {Opt_codepage, "codepage=%u"}, + {Opt_charset, "iocharset=%s"}, + {Opt_namecase, "namecase=%u"}, + {Opt_debug, "debug"}, + {Opt_err_cont, "errors=continue"}, + {Opt_err_panic, "errors=panic"}, + {Opt_err_ro, "errors=remount-ro"}, + {Opt_utf8_hack, "utf8"}, +#ifdef CONFIG_EXFAT_DISCARD + {Opt_discard, "discard"}, +#endif /* CONFIG_EXFAT_DISCARD */ + {Opt_err, NULL} +}; + +static int parse_options(char *options, int silent, int *debug, + struct exfat_mount_options *opts) +{ + char *p; + substring_t args[MAX_OPT_ARGS]; + int option; + char *iocharset; + + opts->fs_uid = current_uid(); + opts->fs_gid = current_gid(); + opts->fs_fmask = opts->fs_dmask = current->fs->umask; + opts->allow_utime = (unsigned short) -1; + opts->codepage = exfat_default_codepage; + opts->iocharset = exfat_default_iocharset; + opts->casesensitive = 0; + opts->errors = EXFAT_ERRORS_RO; +#ifdef CONFIG_EXFAT_DISCARD + opts->discard = 0; +#endif + *debug = 0; + + if (!options) + goto out; + + while ((p = strsep(&options, ",")) != NULL) { + int token; + + if (!*p) + continue; + + token = match_token(p, exfat_tokens, args); + switch (token) { + case Opt_uid: + if (match_int(&args[0], &option)) + return 0; + opts->fs_uid = KUIDT_INIT(option); + break; + case Opt_gid: + if (match_int(&args[0], &option)) + return 0; + opts->fs_gid = KGIDT_INIT(option); + break; + case Opt_umask: + case Opt_dmask: + case Opt_fmask: + if (match_octal(&args[0], &option)) + return 0; + if (token != Opt_dmask) + opts->fs_fmask = option; + if (token != Opt_fmask) + opts->fs_dmask = option; + break; + case Opt_allow_utime: + if (match_octal(&args[0], &option)) + return 0; + opts->allow_utime = option & 0022; + break; + case Opt_codepage: + if (match_int(&args[0], &option)) + return 0; + opts->codepage = option; + break; + case Opt_charset: + if (opts->iocharset != exfat_default_iocharset) + kfree(opts->iocharset); + iocharset = match_strdup(&args[0]); + if (!iocharset) + return -ENOMEM; + opts->iocharset = iocharset; + break; + case Opt_namecase: + if (match_int(&args[0], &option)) + return 0; + opts->casesensitive = option; + break; + case Opt_err_cont: + opts->errors = EXFAT_ERRORS_CONT; + break; + case Opt_err_panic: + opts->errors = EXFAT_ERRORS_PANIC; + break; + case Opt_err_ro: + opts->errors = EXFAT_ERRORS_RO; + break; + case Opt_debug: + *debug = 1; + break; +#ifdef CONFIG_EXFAT_DISCARD + case Opt_discard: + opts->discard = 1; + break; +#endif /* CONFIG_EXFAT_DISCARD */ + case Opt_utf8_hack: + break; + default: + if (!silent) + pr_err("[EXFAT] Unrecognized mount option %s or missing value\n", + p); + return -EINVAL; + } + } + +out: + if (opts->allow_utime == (unsigned short) -1) + opts->allow_utime = ~opts->fs_dmask & 0022; + + return 0; +} + +static void exfat_hash_init(struct super_block *sb) +{ + struct exfat_sb_info *sbi = EXFAT_SB(sb); + int i; + + spin_lock_init(&sbi->inode_hash_lock); + for (i = 0; i < EXFAT_HASH_SIZE; i++) + INIT_HLIST_HEAD(&sbi->inode_hashtable[i]); +} + +static int exfat_read_root(struct inode *inode) +{ + struct super_block *sb = inode->i_sb; + struct exfat_sb_info *sbi = EXFAT_SB(sb); + struct fs_info_t *p_fs = &(sbi->fs_info); + struct dir_entry_t info; + + EXFAT_I(inode)->fid.dir.dir = p_fs->root_dir; + EXFAT_I(inode)->fid.dir.flags = 0x01; + EXFAT_I(inode)->fid.entry = -1; + EXFAT_I(inode)->fid.start_clu = p_fs->root_dir; + EXFAT_I(inode)->fid.flags = 0x01; + EXFAT_I(inode)->fid.type = TYPE_DIR; + EXFAT_I(inode)->fid.rwoffset = 0; + EXFAT_I(inode)->fid.hint_last_off = -1; + + EXFAT_I(inode)->target = NULL; + + ffsReadStat(inode, &info); + + inode->i_uid = sbi->options.fs_uid; + inode->i_gid = sbi->options.fs_gid; + INC_IVERSION(inode); + inode->i_generation = 0; + inode->i_mode = exfat_make_mode(sbi, ATTR_SUBDIR, 0777); + inode->i_op = &exfat_dir_inode_operations; + inode->i_fop = &exfat_dir_operations; + + i_size_write(inode, info.Size); + inode->i_blocks = ((i_size_read(inode) + (p_fs->cluster_size - 1)) + & ~((loff_t)p_fs->cluster_size - 1)) >> 9; + EXFAT_I(inode)->i_pos = ((loff_t) p_fs->root_dir << 32) | 0xffffffff; + EXFAT_I(inode)->mmu_private = i_size_read(inode); + + exfat_save_attr(inode, ATTR_SUBDIR); + inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode); + set_nlink(inode, info.NumSubdirs + 2); + + return 0; +} + +static void setup_dops(struct super_block *sb) +{ + if (EXFAT_SB(sb)->options.casesensitive == 0) + sb->s_d_op = &exfat_ci_dentry_ops; + else + sb->s_d_op = &exfat_dentry_ops; +} + +static int exfat_fill_super(struct super_block *sb, void *data, int silent) +{ + struct inode *root_inode = NULL; + struct exfat_sb_info *sbi; + int debug, ret; + long error; + char buf[50]; + + /* + * GFP_KERNEL is ok here, because while we do hold the + * supeblock lock, memory pressure can't call back into + * the filesystem, since we're only just about to mount + * it and have no inodes etc active! + */ + sbi = kzalloc(sizeof(struct exfat_sb_info), GFP_KERNEL); + if (!sbi) + return -ENOMEM; + mutex_init(&sbi->s_lock); + sb->s_fs_info = sbi; + sb->s_flags |= SB_NODIRATIME; + sb->s_magic = EXFAT_SUPER_MAGIC; + sb->s_op = &exfat_sops; + sb->s_export_op = &exfat_export_ops; + + error = parse_options(data, silent, &debug, &sbi->options); + if (error) + goto out_fail; + + setup_dops(sb); + + error = -EIO; + sb_min_blocksize(sb, 512); + sb->s_maxbytes = 0x7fffffffffffffffLL; /* maximum file size */ + + ret = ffsMountVol(sb); + if (ret) { + if (!silent) + pr_err("[EXFAT] ffsMountVol failed\n"); + + goto out_fail; + } + + /* set up enough so that it can read an inode */ + exfat_hash_init(sb); + + /* + * The low byte of FAT's first entry must have same value with + * media-field. But in real world, too many devices is + * writing wrong value. So, removed that validity check. + * + * if (FAT_FIRST_ENT(sb, media) != first) + */ + + /* codepage is not meaningful in exfat */ + if (sbi->fs_info.vol_type != EXFAT) { + error = -EINVAL; + sprintf(buf, "cp%d", sbi->options.codepage); + sbi->nls_disk = load_nls(buf); + if (!sbi->nls_disk) { + pr_err("[EXFAT] Codepage %s not found\n", buf); + goto out_fail2; + } + } + + sbi->nls_io = load_nls(sbi->options.iocharset); + + error = -ENOMEM; + root_inode = new_inode(sb); + if (!root_inode) + goto out_fail2; + root_inode->i_ino = EXFAT_ROOT_INO; + SET_IVERSION(root_inode, 1); + + error = exfat_read_root(root_inode); + if (error < 0) + goto out_fail2; + error = -ENOMEM; + exfat_attach(root_inode, EXFAT_I(root_inode)->i_pos); + insert_inode_hash(root_inode); + sb->s_root = d_make_root(root_inode); + if (!sb->s_root) { + pr_err("[EXFAT] Getting the root inode failed\n"); + goto out_fail2; + } + + return 0; + +out_fail2: + ffsUmountVol(sb); +out_fail: + if (root_inode) + iput(root_inode); + sb->s_fs_info = NULL; + exfat_free_super(sbi); + return error; +} + +static struct dentry *exfat_fs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, + void *data) +{ + return mount_bdev(fs_type, flags, dev_name, data, exfat_fill_super); +} + +static void init_once(void *foo) +{ + struct exfat_inode_info *ei = (struct exfat_inode_info *)foo; + + INIT_HLIST_NODE(&ei->i_hash_fat); + inode_init_once(&ei->vfs_inode); +} + +static int __init exfat_init_inodecache(void) +{ + exfat_inode_cachep = kmem_cache_create("exfat_inode_cache", + sizeof(struct exfat_inode_info), + 0, + (SLAB_RECLAIM_ACCOUNT | + SLAB_MEM_SPREAD), + init_once); + if (exfat_inode_cachep == NULL) + return -ENOMEM; + return 0; +} + +static void __exit exfat_destroy_inodecache(void) +{ + /* + * Make sure all delayed rcu free inodes are flushed before we + * destroy cache. + */ + rcu_barrier(); + kmem_cache_destroy(exfat_inode_cachep); +} + +#ifdef CONFIG_EXFAT_KERNEL_DEBUG +static void exfat_debug_kill_sb(struct super_block *sb) +{ + struct exfat_sb_info *sbi = EXFAT_SB(sb); + struct block_device *bdev = sb->s_bdev; + struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info); + + long flags; + + if (sbi) { + flags = sbi->debug_flags; + + if (flags & EXFAT_DEBUGFLAGS_INVALID_UMOUNT) { + /* + * invalidate_bdev drops all device cache include + * dirty. We use this to simulate device removal. + */ + down(&p_fs->v_sem); + FAT_release_all(sb); + buf_release_all(sb); + up(&p_fs->v_sem); + + invalidate_bdev(bdev); + } + } + + kill_block_super(sb); +} +#endif /* CONFIG_EXFAT_KERNEL_DEBUG */ + +static struct file_system_type exfat_fs_type = { + .owner = THIS_MODULE, + .name = "exfat", + .mount = exfat_fs_mount, +#ifdef CONFIG_EXFAT_KERNEL_DEBUG + .kill_sb = exfat_debug_kill_sb, +#else + .kill_sb = kill_block_super, +#endif /* CONFIG_EXFAT_KERNEL_DEBUG */ + .fs_flags = FS_REQUIRES_DEV, +}; + +static int __init init_exfat(void) +{ + int err; + + BUILD_BUG_ON(sizeof(struct dentry_t) != DENTRY_SIZE); + BUILD_BUG_ON(sizeof(struct dos_dentry_t) != DENTRY_SIZE); + BUILD_BUG_ON(sizeof(struct ext_dentry_t) != DENTRY_SIZE); + BUILD_BUG_ON(sizeof(struct file_dentry_t) != DENTRY_SIZE); + BUILD_BUG_ON(sizeof(struct strm_dentry_t) != DENTRY_SIZE); + BUILD_BUG_ON(sizeof(struct name_dentry_t) != DENTRY_SIZE); + BUILD_BUG_ON(sizeof(struct bmap_dentry_t) != DENTRY_SIZE); + BUILD_BUG_ON(sizeof(struct case_dentry_t) != DENTRY_SIZE); + BUILD_BUG_ON(sizeof(struct volm_dentry_t) != DENTRY_SIZE); + + pr_info("exFAT: Version %s\n", EXFAT_VERSION); + + err = exfat_init_inodecache(); + if (err) + return err; + + err = register_filesystem(&exfat_fs_type); + if (err) + return err; + + return 0; +} + +static void __exit exit_exfat(void) +{ + exfat_destroy_inodecache(); + unregister_filesystem(&exfat_fs_type); +} + +module_init(init_exfat); +module_exit(exit_exfat); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("exFAT Filesystem Driver"); +MODULE_ALIAS_FS("exfat"); diff --git a/drivers/staging/exfat/exfat_upcase.c b/drivers/staging/exfat/exfat_upcase.c new file mode 100644 index 000000000000..366082fb3dab --- /dev/null +++ b/drivers/staging/exfat/exfat_upcase.c @@ -0,0 +1,740 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2012-2013 Samsung Electronics Co., Ltd. + */ + +#include <linux/types.h> +#include "exfat.h" + +const u8 uni_upcase[NUM_UPCASE << 1] = { + 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, + 0x04, 0x00, 0x05, 0x00, 0x06, 0x00, 0x07, 0x00, + 0x08, 0x00, 0x09, 0x00, 0x0A, 0x00, 0x0B, 0x00, + 0x0C, 0x00, 0x0D, 0x00, 0x0E, 0x00, 0x0F, 0x00, + 0x10, 0x00, 0x11, 0x00, 0x12, 0x00, 0x13, 0x00, + 0x14, 0x00, 0x15, 0x00, 0x16, 0x00, 0x17, 0x00, + 0x18, 0x00, 0x19, 0x00, 0x1A, 0x00, 0x1B, 0x00, + 0x1C, 0x00, 0x1D, 0x00, 0x1E, 0x00, 0x1F, 0x00, + 0x20, 0x00, 0x21, 0x00, 0x22, 0x00, 0x23, 0x00, + 0x24, 0x00, 0x25, 0x00, 0x26, 0x00, 0x27, 0x00, + 0x28, 0x00, 0x29, 0x00, 0x2A, 0x00, 0x2B, 0x00, + 0x2C, 0x00, 0x2D, 0x00, 0x2E, 0x00, 0x2F, 0x00, + 0x30, 0x00, 0x31, 0x00, 0x32, 0x00, 0x33, 0x00, + 0x34, 0x00, 0x35, 0x00, 0x36, 0x00, 0x37, 0x00, + 0x38, 0x00, 0x39, 0x00, 0x3A, 0x00, 0x3B, 0x00, + 0x3C, 0x00, 0x3D, 0x00, 0x3E, 0x00, 0x3F, 0x00, + 0x40, 0x00, 0x41, 0x00, 0x42, 0x00, 0x43, 0x00, + 0x44, 0x00, 0x45, 0x00, 0x46, 0x00, 0x47, 0x00, + 0x48, 0x00, 0x49, 0x00, 0x4A, 0x00, 0x4B, 0x00, + 0x4C, 0x00, 0x4D, 0x00, 0x4E, 0x00, 0x4F, 0x00, + 0x50, 0x00, 0x51, 0x00, 0x52, 0x00, 0x53, 0x00, + 0x54, 0x00, 0x55, 0x00, 0x56, 0x00, 0x57, 0x00, + 0x58, 0x00, 0x59, 0x00, 0x5A, 0x00, 0x5B, 0x00, + 0x5C, 0x00, 0x5D, 0x00, 0x5E, 0x00, 0x5F, 0x00, + 0x60, 0x00, 0x41, 0x00, 0x42, 0x00, 0x43, 0x00, + 0x44, 0x00, 0x45, 0x00, 0x46, 0x00, 0x47, 0x00, + 0x48, 0x00, 0x49, 0x00, 0x4A, 0x00, 0x4B, 0x00, + 0x4C, 0x00, 0x4D, 0x00, 0x4E, 0x00, 0x4F, 0x00, + 0x50, 0x00, 0x51, 0x00, 0x52, 0x00, 0x53, 0x00, + 0x54, 0x00, 0x55, 0x00, 0x56, 0x00, 0x57, 0x00, + 0x58, 0x00, 0x59, 0x00, 0x5A, 0x00, 0x7B, 0x00, + 0x7C, 0x00, 0x7D, 0x00, 0x7E, 0x00, 0x7F, 0x00, + 0x80, 0x00, 0x81, 0x00, 0x82, 0x00, 0x83, 0x00, + 0x84, 0x00, 0x85, 0x00, 0x86, 0x00, 0x87, 0x00, + 0x88, 0x00, 0x89, 0x00, 0x8A, 0x00, 0x8B, 0x00, + 0x8C, 0x00, 0x8D, 0x00, 0x8E, 0x00, 0x8F, 0x00, + 0x90, 0x00, 0x91, 0x00, 0x92, 0x00, 0x93, 0x00, + 0x94, 0x00, 0x95, 0x00, 0x96, 0x00, 0x97, 0x00, + 0x98, 0x00, 0x99, 0x00, 0x9A, 0x00, 0x9B, 0x00, + 0x9C, 0x00, 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0x7E, 0x2C, 0x7F, 0x2C, 0x80, 0x2C, + 0x80, 0x2C, 0x82, 0x2C, 0x82, 0x2C, 0x84, 0x2C, + 0x84, 0x2C, 0x86, 0x2C, 0x86, 0x2C, 0x88, 0x2C, + 0x88, 0x2C, 0x8A, 0x2C, 0x8A, 0x2C, 0x8C, 0x2C, + 0x8C, 0x2C, 0x8E, 0x2C, 0x8E, 0x2C, 0x90, 0x2C, + 0x90, 0x2C, 0x92, 0x2C, 0x92, 0x2C, 0x94, 0x2C, + 0x94, 0x2C, 0x96, 0x2C, 0x96, 0x2C, 0x98, 0x2C, + 0x98, 0x2C, 0x9A, 0x2C, 0x9A, 0x2C, 0x9C, 0x2C, + 0x9C, 0x2C, 0x9E, 0x2C, 0x9E, 0x2C, 0xA0, 0x2C, + 0xA0, 0x2C, 0xA2, 0x2C, 0xA2, 0x2C, 0xA4, 0x2C, + 0xA4, 0x2C, 0xA6, 0x2C, 0xA6, 0x2C, 0xA8, 0x2C, + 0xA8, 0x2C, 0xAA, 0x2C, 0xAA, 0x2C, 0xAC, 0x2C, + 0xAC, 0x2C, 0xAE, 0x2C, 0xAE, 0x2C, 0xB0, 0x2C, + 0xB0, 0x2C, 0xB2, 0x2C, 0xB2, 0x2C, 0xB4, 0x2C, + 0xB4, 0x2C, 0xB6, 0x2C, 0xB6, 0x2C, 0xB8, 0x2C, + 0xB8, 0x2C, 0xBA, 0x2C, 0xBA, 0x2C, 0xBC, 0x2C, + 0xBC, 0x2C, 0xBE, 0x2C, 0xBE, 0x2C, 0xC0, 0x2C, + 0xC0, 0x2C, 0xC2, 0x2C, 0xC2, 0x2C, 0xC4, 0x2C, + 0xC4, 0x2C, 0xC6, 0x2C, 0xC6, 0x2C, 0xC8, 0x2C, + 0xC8, 0x2C, 0xCA, 0x2C, 0xCA, 0x2C, 0xCC, 0x2C, + 0xCC, 0x2C, 0xCE, 0x2C, 0xCE, 0x2C, 0xD0, 0x2C, + 0xD0, 0x2C, 0xD2, 0x2C, 0xD2, 0x2C, 0xD4, 0x2C, + 0xD4, 0x2C, 0xD6, 0x2C, 0xD6, 0x2C, 0xD8, 0x2C, + 0xD8, 0x2C, 0xDA, 0x2C, 0xDA, 0x2C, 0xDC, 0x2C, + 0xDC, 0x2C, 0xDE, 0x2C, 0xDE, 0x2C, 0xE0, 0x2C, + 0xE0, 0x2C, 0xE2, 0x2C, 0xE2, 0x2C, 0xE4, 0x2C, + 0xE5, 0x2C, 0xE6, 0x2C, 0xE7, 0x2C, 0xE8, 0x2C, + 0xE9, 0x2C, 0xEA, 0x2C, 0xEB, 0x2C, 0xEC, 0x2C, + 0xED, 0x2C, 0xEE, 0x2C, 0xEF, 0x2C, 0xF0, 0x2C, + 0xF1, 0x2C, 0xF2, 0x2C, 0xF3, 0x2C, 0xF4, 0x2C, + 0xF5, 0x2C, 0xF6, 0x2C, 0xF7, 0x2C, 0xF8, 0x2C, + 0xF9, 0x2C, 0xFA, 0x2C, 0xFB, 0x2C, 0xFC, 0x2C, + 0xFD, 0x2C, 0xFE, 0x2C, 0xFF, 0x2C, 0xA0, 0x10, + 0xA1, 0x10, 0xA2, 0x10, 0xA3, 0x10, 0xA4, 0x10, + 0xA5, 0x10, 0xA6, 0x10, 0xA7, 0x10, 0xA8, 0x10, + 0xA9, 0x10, 0xAA, 0x10, 0xAB, 0x10, 0xAC, 0x10, + 0xAD, 0x10, 0xAE, 0x10, 0xAF, 0x10, 0xB0, 0x10, + 0xB1, 0x10, 0xB2, 0x10, 0xB3, 0x10, 0xB4, 0x10, + 0xB5, 0x10, 0xB6, 0x10, 0xB7, 0x10, 0xB8, 0x10, + 0xB9, 0x10, 0xBA, 0x10, 0xBB, 0x10, 0xBC, 0x10, + 0xBD, 0x10, 0xBE, 0x10, 0xBF, 0x10, 0xC0, 0x10, + 0xC1, 0x10, 0xC2, 0x10, 0xC3, 0x10, 0xC4, 0x10, + 0xC5, 0x10, 0xFF, 0xFF, 0x1B, 0xD2, 0x21, 0xFF, + 0x22, 0xFF, 0x23, 0xFF, 0x24, 0xFF, 0x25, 0xFF, + 0x26, 0xFF, 0x27, 0xFF, 0x28, 0xFF, 0x29, 0xFF, + 0x2A, 0xFF, 0x2B, 0xFF, 0x2C, 0xFF, 0x2D, 0xFF, + 0x2E, 0xFF, 0x2F, 0xFF, 0x30, 0xFF, 0x31, 0xFF, + 0x32, 0xFF, 0x33, 0xFF, 0x34, 0xFF, 0x35, 0xFF, + 0x36, 0xFF, 0x37, 0xFF, 0x38, 0xFF, 0x39, 0xFF, + 0x3A, 0xFF, 0x5B, 0xFF, 0x5C, 0xFF, 0x5D, 0xFF, + 0x5E, 0xFF, 0x5F, 0xFF, 0x60, 0xFF, 0x61, 0xFF, + 0x62, 0xFF, 0x63, 0xFF, 0x64, 0xFF, 0x65, 0xFF, + 0x66, 0xFF, 0x67, 0xFF, 0x68, 0xFF, 0x69, 0xFF, + 0x6A, 0xFF, 0x6B, 0xFF, 0x6C, 0xFF, 0x6D, 0xFF, + 0x6E, 0xFF, 0x6F, 0xFF, 0x70, 0xFF, 0x71, 0xFF, + 0x72, 0xFF, 0x73, 0xFF, 0x74, 0xFF, 0x75, 0xFF, + 0x76, 0xFF, 0x77, 0xFF, 0x78, 0xFF, 0x79, 0xFF, + 0x7A, 0xFF, 0x7B, 0xFF, 0x7C, 0xFF, 0x7D, 0xFF, + 0x7E, 0xFF, 0x7F, 0xFF, 0x80, 0xFF, 0x81, 0xFF, + 0x82, 0xFF, 0x83, 0xFF, 0x84, 0xFF, 0x85, 0xFF, + 0x86, 0xFF, 0x87, 0xFF, 0x88, 0xFF, 0x89, 0xFF, + 0x8A, 0xFF, 0x8B, 0xFF, 0x8C, 0xFF, 0x8D, 0xFF, + 0x8E, 0xFF, 0x8F, 0xFF, 0x90, 0xFF, 0x91, 0xFF, + 0x92, 0xFF, 0x93, 0xFF, 0x94, 0xFF, 0x95, 0xFF, + 0x96, 0xFF, 0x97, 0xFF, 0x98, 0xFF, 0x99, 0xFF, + 0x9A, 0xFF, 0x9B, 0xFF, 0x9C, 0xFF, 0x9D, 0xFF, + 0x9E, 0xFF, 0x9F, 0xFF, 0xA0, 0xFF, 0xA1, 0xFF, + 0xA2, 0xFF, 0xA3, 0xFF, 0xA4, 0xFF, 0xA5, 0xFF, + 0xA6, 0xFF, 0xA7, 0xFF, 0xA8, 0xFF, 0xA9, 0xFF, + 0xAA, 0xFF, 0xAB, 0xFF, 0xAC, 0xFF, 0xAD, 0xFF, + 0xAE, 0xFF, 0xAF, 0xFF, 0xB0, 0xFF, 0xB1, 0xFF, + 0xB2, 0xFF, 0xB3, 0xFF, 0xB4, 0xFF, 0xB5, 0xFF, + 0xB6, 0xFF, 0xB7, 0xFF, 0xB8, 0xFF, 0xB9, 0xFF, + 0xBA, 0xFF, 0xBB, 0xFF, 0xBC, 0xFF, 0xBD, 0xFF, + 0xBE, 0xFF, 0xBF, 0xFF, 0xC0, 0xFF, 0xC1, 0xFF, + 0xC2, 0xFF, 0xC3, 0xFF, 0xC4, 0xFF, 0xC5, 0xFF, + 0xC6, 0xFF, 0xC7, 0xFF, 0xC8, 0xFF, 0xC9, 0xFF, + 0xCA, 0xFF, 0xCB, 0xFF, 0xCC, 0xFF, 0xCD, 0xFF, + 0xCE, 0xFF, 0xCF, 0xFF, 0xD0, 0xFF, 0xD1, 0xFF, + 0xD2, 0xFF, 0xD3, 0xFF, 0xD4, 0xFF, 0xD5, 0xFF, + 0xD6, 0xFF, 0xD7, 0xFF, 0xD8, 0xFF, 0xD9, 0xFF, + 0xDA, 0xFF, 0xDB, 0xFF, 0xDC, 0xFF, 0xDD, 0xFF, + 0xDE, 0xFF, 0xDF, 0xFF, 0xE0, 0xFF, 0xE1, 0xFF, + 0xE2, 0xFF, 0xE3, 0xFF, 0xE4, 0xFF, 0xE5, 0xFF, + 0xE6, 0xFF, 0xE7, 0xFF, 0xE8, 0xFF, 0xE9, 0xFF, + 0xEA, 0xFF, 0xEB, 0xFF, 0xEC, 0xFF, 0xED, 0xFF, + 0xEE, 0xFF, 0xEF, 0xFF, 0xF0, 0xFF, 0xF1, 0xFF, + 0xF2, 0xFF, 0xF3, 0xFF, 0xF4, 0xFF, 0xF5, 0xFF, + 0xF6, 0xFF, 0xF7, 0xFF, 0xF8, 0xFF, 0xF9, 0xFF, + 0xFA, 0xFF, 0xFB, 0xFF, 0xFC, 0xFF, 0xFD, 0xFF, + 0xFE, 0xFF, 0xFF, 0xFF +}; diff --git a/drivers/staging/gasket/gasket_ioctl.c b/drivers/staging/gasket/gasket_ioctl.c index 7ecfba4f2b06..240f9bb10b71 100644 --- a/drivers/staging/gasket/gasket_ioctl.c +++ b/drivers/staging/gasket/gasket_ioctl.c @@ -39,8 +39,7 @@ static int gasket_set_event_fd(struct gasket_dev *gasket_dev, } /* Read the size of the page table. */ -static int gasket_read_page_table_size( - struct gasket_dev *gasket_dev, +static int gasket_read_page_table_size(struct gasket_dev *gasket_dev, struct gasket_page_table_ioctl __user *argp) { int ret = 0; @@ -66,8 +65,7 @@ static int gasket_read_page_table_size( } /* Read the size of the simple page table. */ -static int gasket_read_simple_page_table_size( - struct gasket_dev *gasket_dev, +static int gasket_read_simple_page_table_size(struct gasket_dev *gasket_dev, struct gasket_page_table_ioctl __user *argp) { int ret = 0; @@ -93,8 +91,7 @@ static int gasket_read_simple_page_table_size( } /* Set the boundary between the simple and extended page tables. */ -static int gasket_partition_page_table( - struct gasket_dev *gasket_dev, +static int gasket_partition_page_table(struct gasket_dev *gasket_dev, struct gasket_page_table_ioctl __user *argp) { int ret; @@ -185,8 +182,7 @@ static int gasket_unmap_buffers(struct gasket_dev *gasket_dev, * Reserve structures for coherent allocation, and allocate or free the * corresponding memory. */ -static int gasket_config_coherent_allocator( - struct gasket_dev *gasket_dev, +static int gasket_config_coherent_allocator(struct gasket_dev *gasket_dev, struct gasket_coherent_alloc_config_ioctl __user *argp) { int ret; diff --git a/drivers/staging/greybus/Documentation/firmware/authenticate.c b/drivers/staging/greybus/Documentation/firmware/authenticate.c index 806e75b7f405..3d2c6f88a138 100644 --- a/drivers/staging/greybus/Documentation/firmware/authenticate.c +++ b/drivers/staging/greybus/Documentation/firmware/authenticate.c @@ -2,54 +2,8 @@ /* * Sample code to test CAP protocol * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * * Copyright(c) 2016 Google Inc. All rights reserved. * Copyright(c) 2016 Linaro Ltd. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details. - * - * BSD LICENSE - * - * Copyright(c) 2016 Google Inc. All rights reserved. - * Copyright(c) 2016 Linaro Ltd. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. or Linaro Ltd. nor the names of - * its contributors may be used to endorse or promote products - * derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR - * LINARO LTD. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <stdio.h> diff --git a/drivers/staging/greybus/Documentation/firmware/firmware.c b/drivers/staging/greybus/Documentation/firmware/firmware.c index 31d9c23e2eeb..765d69faa9cc 100644 --- a/drivers/staging/greybus/Documentation/firmware/firmware.c +++ b/drivers/staging/greybus/Documentation/firmware/firmware.c @@ -2,54 +2,8 @@ /* * Sample code to test firmware-management protocol * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * * Copyright(c) 2016 Google Inc. All rights reserved. * Copyright(c) 2016 Linaro Ltd. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details. - * - * BSD LICENSE - * - * Copyright(c) 2016 Google Inc. All rights reserved. - * Copyright(c) 2016 Linaro Ltd. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. or Linaro Ltd. nor the names of - * its contributors may be used to endorse or promote products - * derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR - * LINARO LTD. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <stdio.h> diff --git a/drivers/staging/greybus/Kconfig b/drivers/staging/greybus/Kconfig index 4894c3514955..d4777f5a8b90 100644 --- a/drivers/staging/greybus/Kconfig +++ b/drivers/staging/greybus/Kconfig @@ -1,33 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 -menuconfig GREYBUS - tristate "Greybus support" - depends on SYSFS - ---help--- - This option enables the Greybus driver core. Greybus is an - hardware protocol that was designed to provide Unipro with a - sane application layer. It was originally designed for the - ARA project, a module phone system, but has shown up in other - phones, and can be tunneled over other busses in order to - control hardware devices. - - Say Y here to enable support for these types of drivers. - - To compile this code as a module, chose M here: the module - will be called greybus.ko - if GREYBUS -config GREYBUS_ES2 - tristate "Greybus ES3 USB host controller" - depends on USB - ---help--- - Select this option if you have a Toshiba ES3 USB device that - acts as a Greybus "host controller". This device is a bridge - from a USB device to a Unipro network. - - To compile this code as a module, chose M here: the module - will be called gb-es2.ko - config GREYBUS_AUDIO tristate "Greybus Audio Class driver" depends on SOUND diff --git a/drivers/staging/greybus/Makefile b/drivers/staging/greybus/Makefile index 2551ed16b742..627e44f2a983 100644 --- a/drivers/staging/greybus/Makefile +++ b/drivers/staging/greybus/Makefile @@ -1,29 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 -# Greybus core -greybus-y := core.o \ - debugfs.o \ - hd.o \ - manifest.o \ - module.o \ - interface.o \ - bundle.o \ - connection.o \ - control.o \ - svc.o \ - svc_watchdog.o \ - operation.o - -obj-$(CONFIG_GREYBUS) += greybus.o - # needed for trace events ccflags-y += -I$(src) - -# Greybus Host controller drivers -gb-es2-y := es2.o - -obj-$(CONFIG_GREYBUS_ES2) += gb-es2.o - # Greybus class drivers gb-bootrom-y := bootrom.o gb-camera-y := camera.o diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c index 6eb842040c22..eebf0deb39f5 100644 --- a/drivers/staging/greybus/arche-platform.c +++ b/drivers/staging/greybus/arche-platform.c @@ -19,8 +19,8 @@ #include <linux/irq.h> #include <linux/suspend.h> #include <linux/time.h> +#include <linux/greybus.h> #include "arche_platform.h" -#include "greybus.h" #if IS_ENABLED(CONFIG_USB_HSIC_USB3613) #include <linux/usb/usb3613.h> diff --git a/drivers/staging/greybus/arpc.h b/drivers/staging/greybus/arpc.h deleted file mode 100644 index 3dab6375909c..000000000000 --- a/drivers/staging/greybus/arpc.h +++ /dev/null @@ -1,109 +0,0 @@ -/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2016 Google Inc. All rights reserved. - * Copyright(c) 2016 Linaro Ltd. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details. - * - * BSD LICENSE - * - * Copyright(c) 2016 Google Inc. All rights reserved. - * Copyright(c) 2016 Linaro Ltd. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. or Linaro Ltd. nor the names of - * its contributors may be used to endorse or promote products - * derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR - * LINARO LTD. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __ARPC_H -#define __ARPC_H - -/* APBridgeA RPC (ARPC) */ - -enum arpc_result { - ARPC_SUCCESS = 0x00, - ARPC_NO_MEMORY = 0x01, - ARPC_INVALID = 0x02, - ARPC_TIMEOUT = 0x03, - ARPC_UNKNOWN_ERROR = 0xff, -}; - -struct arpc_request_message { - __le16 id; /* RPC unique id */ - __le16 size; /* Size in bytes of header + payload */ - __u8 type; /* RPC type */ - __u8 data[0]; /* ARPC data */ -} __packed; - -struct arpc_response_message { - __le16 id; /* RPC unique id */ - __u8 result; /* Result of RPC */ -} __packed; - -/* ARPC requests */ -#define ARPC_TYPE_CPORT_CONNECTED 0x01 -#define ARPC_TYPE_CPORT_QUIESCE 0x02 -#define ARPC_TYPE_CPORT_CLEAR 0x03 -#define ARPC_TYPE_CPORT_FLUSH 0x04 -#define ARPC_TYPE_CPORT_SHUTDOWN 0x05 - -struct arpc_cport_connected_req { - __le16 cport_id; -} __packed; - -struct arpc_cport_quiesce_req { - __le16 cport_id; - __le16 peer_space; - __le16 timeout; -} __packed; - -struct arpc_cport_clear_req { - __le16 cport_id; -} __packed; - -struct arpc_cport_flush_req { - __le16 cport_id; -} __packed; - -struct arpc_cport_shutdown_req { - __le16 cport_id; - __le16 timeout; - __u8 phase; -} __packed; - -#endif /* __ARPC_H */ diff --git a/drivers/staging/greybus/audio_apbridgea.c b/drivers/staging/greybus/audio_apbridgea.c index 7ebb1bde5cb7..26117e390deb 100644 --- a/drivers/staging/greybus/audio_apbridgea.c +++ b/drivers/staging/greybus/audio_apbridgea.c @@ -5,8 +5,7 @@ * Copyright 2015-2016 Google Inc. */ -#include "greybus.h" -#include "greybus_protocols.h" +#include <linux/greybus.h> #include "audio_apbridgea.h" #include "audio_codec.h" diff --git a/drivers/staging/greybus/audio_apbridgea.h b/drivers/staging/greybus/audio_apbridgea.h index 330fc7a397eb..3f1f4dd2c61a 100644 --- a/drivers/staging/greybus/audio_apbridgea.h +++ b/drivers/staging/greybus/audio_apbridgea.h @@ -1,30 +1,6 @@ /* SPDX-License-Identifier: BSD-3-Clause */ -/** +/* * Copyright (c) 2015-2016 Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. Neither the name of the copyright holder nor the names of its - * contributors may be used to endorse or promote products derived from this - * software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * This is a special protocol for configuring communication over the diff --git a/drivers/staging/greybus/audio_codec.h b/drivers/staging/greybus/audio_codec.h index 9ba09ea9c2fc..cb5d271da1a5 100644 --- a/drivers/staging/greybus/audio_codec.h +++ b/drivers/staging/greybus/audio_codec.h @@ -8,12 +8,10 @@ #ifndef __LINUX_GBAUDIO_CODEC_H #define __LINUX_GBAUDIO_CODEC_H +#include <linux/greybus.h> #include <sound/soc.h> #include <sound/jack.h> -#include "greybus.h" -#include "greybus_protocols.h" - #define NAME_SIZE 32 #define MAX_DAIS 2 /* APB1, APB2 */ diff --git a/drivers/staging/greybus/audio_gb.c b/drivers/staging/greybus/audio_gb.c index 8894f1c87d48..9d8994fdb41a 100644 --- a/drivers/staging/greybus/audio_gb.c +++ b/drivers/staging/greybus/audio_gb.c @@ -5,9 +5,7 @@ * Copyright 2015-2016 Google Inc. */ -#include "greybus.h" -#include "greybus_protocols.h" -#include "operation.h" +#include <linux/greybus.h> #include "audio_codec.h" /* TODO: Split into separate calls */ diff --git a/drivers/staging/greybus/authentication.c b/drivers/staging/greybus/authentication.c index a5d7c53df987..297e69f011c7 100644 --- a/drivers/staging/greybus/authentication.c +++ b/drivers/staging/greybus/authentication.c @@ -6,8 +6,7 @@ * Copyright 2016 Linaro Ltd. */ -#include "greybus.h" - +#include <linux/greybus.h> #include <linux/cdev.h> #include <linux/fs.h> #include <linux/ioctl.h> diff --git a/drivers/staging/greybus/bootrom.c b/drivers/staging/greybus/bootrom.c index 402e6360834f..a8efb86de140 100644 --- a/drivers/staging/greybus/bootrom.c +++ b/drivers/staging/greybus/bootrom.c @@ -10,8 +10,8 @@ #include <linux/jiffies.h> #include <linux/mutex.h> #include <linux/workqueue.h> +#include <linux/greybus.h> -#include "greybus.h" #include "firmware.h" /* Timeout, in jiffies, within which the next request must be received */ diff --git a/drivers/staging/greybus/camera.c b/drivers/staging/greybus/camera.c index 615c8e7fd51e..b570e13394ac 100644 --- a/drivers/staging/greybus/camera.c +++ b/drivers/staging/greybus/camera.c @@ -14,9 +14,9 @@ #include <linux/string.h> #include <linux/uaccess.h> #include <linux/vmalloc.h> +#include <linux/greybus.h> #include "gb-camera.h" -#include "greybus.h" #include "greybus_protocols.h" enum gb_camera_debugs_buffer_id { diff --git a/drivers/staging/greybus/firmware.h b/drivers/staging/greybus/firmware.h index 946221307ef6..5d2564462ffc 100644 --- a/drivers/staging/greybus/firmware.h +++ b/drivers/staging/greybus/firmware.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus Firmware Management Header * @@ -9,7 +9,7 @@ #ifndef __FIRMWARE_H #define __FIRMWARE_H -#include "greybus.h" +#include <linux/greybus.h> #define FW_NAME_PREFIX "gmp_" diff --git a/drivers/staging/greybus/fw-core.c b/drivers/staging/greybus/fw-core.c index 388866d92f5b..57bebf24636b 100644 --- a/drivers/staging/greybus/fw-core.c +++ b/drivers/staging/greybus/fw-core.c @@ -8,8 +8,8 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/firmware.h> +#include <linux/greybus.h> #include "firmware.h" -#include "greybus.h" #include "spilib.h" struct gb_fw_core { diff --git a/drivers/staging/greybus/fw-download.c b/drivers/staging/greybus/fw-download.c index d3b7cccbc10d..543692c567f9 100644 --- a/drivers/staging/greybus/fw-download.c +++ b/drivers/staging/greybus/fw-download.c @@ -10,8 +10,8 @@ #include <linux/jiffies.h> #include <linux/mutex.h> #include <linux/workqueue.h> +#include <linux/greybus.h> #include "firmware.h" -#include "greybus.h" /* Estimated minimum buffer size, actual size can be smaller than this */ #define MIN_FETCH_SIZE 512 diff --git a/drivers/staging/greybus/fw-management.c b/drivers/staging/greybus/fw-management.c index 71aec14f8181..687c6405c65b 100644 --- a/drivers/staging/greybus/fw-management.c +++ b/drivers/staging/greybus/fw-management.c @@ -13,10 +13,10 @@ #include <linux/idr.h> #include <linux/ioctl.h> #include <linux/uaccess.h> +#include <linux/greybus.h> #include "firmware.h" #include "greybus_firmware.h" -#include "greybus.h" #define FW_MGMT_TIMEOUT_MS 1000 diff --git a/drivers/staging/greybus/gb-camera.h b/drivers/staging/greybus/gb-camera.h index ee293e461fc3..5fc469101fc1 100644 --- a/drivers/staging/greybus/gb-camera.h +++ b/drivers/staging/greybus/gb-camera.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus Camera protocol driver. * diff --git a/drivers/staging/greybus/gbphy.c b/drivers/staging/greybus/gbphy.c index 6cb85c3d3572..9fc5c47be9bd 100644 --- a/drivers/staging/greybus/gbphy.c +++ b/drivers/staging/greybus/gbphy.c @@ -13,8 +13,8 @@ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/device.h> +#include <linux/greybus.h> -#include "greybus.h" #include "gbphy.h" #define GB_GBPHY_AUTOSUSPEND_MS 3000 diff --git a/drivers/staging/greybus/gbphy.h b/drivers/staging/greybus/gbphy.h index 99463489d7d6..087928a586fb 100644 --- a/drivers/staging/greybus/gbphy.h +++ b/drivers/staging/greybus/gbphy.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus Bridged-Phy Bus driver * diff --git a/drivers/staging/greybus/gpio.c b/drivers/staging/greybus/gpio.c index 3151004d26fb..1ff34abd5692 100644 --- a/drivers/staging/greybus/gpio.c +++ b/drivers/staging/greybus/gpio.c @@ -13,8 +13,8 @@ #include <linux/irqdomain.h> #include <linux/gpio/driver.h> #include <linux/mutex.h> +#include <linux/greybus.h> -#include "greybus.h" #include "gbphy.h" struct gb_gpio_line { diff --git a/drivers/staging/greybus/greybus_authentication.h b/drivers/staging/greybus/greybus_authentication.h index 03ea9615b217..7edc7295b7ab 100644 --- a/drivers/staging/greybus/greybus_authentication.h +++ b/drivers/staging/greybus/greybus_authentication.h @@ -1,55 +1,9 @@ -// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ /* * Greybus Component Authentication User Header * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * * Copyright(c) 2016 Google Inc. All rights reserved. * Copyright(c) 2016 Linaro Ltd. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details. - * - * BSD LICENSE - * - * Copyright(c) 2016 Google Inc. All rights reserved. - * Copyright(c) 2016 Linaro Ltd. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. or Linaro Ltd. nor the names of - * its contributors may be used to endorse or promote products - * derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR - * LINARO LTD. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef __GREYBUS_AUTHENTICATION_USER_H diff --git a/drivers/staging/greybus/greybus_firmware.h b/drivers/staging/greybus/greybus_firmware.h index b58281a63ba4..f68fd5e25321 100644 --- a/drivers/staging/greybus/greybus_firmware.h +++ b/drivers/staging/greybus/greybus_firmware.h @@ -1,55 +1,9 @@ -// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ /* * Greybus Firmware Management User Header * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * * Copyright(c) 2016 Google Inc. All rights reserved. * Copyright(c) 2016 Linaro Ltd. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details. - * - * BSD LICENSE - * - * Copyright(c) 2016 Google Inc. All rights reserved. - * Copyright(c) 2016 Linaro Ltd. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. or Linaro Ltd. nor the names of - * its contributors may be used to endorse or promote products - * derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR - * LINARO LTD. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef __GREYBUS_FIRMWARE_USER_H diff --git a/drivers/staging/greybus/hid.c b/drivers/staging/greybus/hid.c index 8ab810bf5716..04bfd9110502 100644 --- a/drivers/staging/greybus/hid.c +++ b/drivers/staging/greybus/hid.c @@ -12,8 +12,7 @@ #include <linux/module.h> #include <linux/mutex.h> #include <linux/slab.h> - -#include "greybus.h" +#include <linux/greybus.h> /* Greybus HID device's structure */ struct gb_hid { diff --git a/drivers/staging/greybus/i2c.c b/drivers/staging/greybus/i2c.c index b2522043a1a4..ab06fc3b9e7e 100644 --- a/drivers/staging/greybus/i2c.c +++ b/drivers/staging/greybus/i2c.c @@ -10,8 +10,8 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/i2c.h> +#include <linux/greybus.h> -#include "greybus.h" #include "gbphy.h" struct gb_i2c_device { diff --git a/drivers/staging/greybus/light.c b/drivers/staging/greybus/light.c index 010ae1e9c7fb..d6ba25f21d80 100644 --- a/drivers/staging/greybus/light.c +++ b/drivers/staging/greybus/light.c @@ -11,11 +11,9 @@ #include <linux/led-class-flash.h> #include <linux/module.h> #include <linux/slab.h> +#include <linux/greybus.h> #include <media/v4l2-flash-led-class.h> -#include "greybus.h" -#include "greybus_protocols.h" - #define NAMES_MAX 32 struct gb_channel { @@ -1098,21 +1096,21 @@ static void gb_lights_channel_release(struct gb_channel *channel) static void gb_lights_light_release(struct gb_light *light) { int i; - int count; light->ready = false; - count = light->channels_count; - if (light->has_flash) gb_lights_light_v4l2_unregister(light); + light->has_flash = false; - for (i = 0; i < count; i++) { + for (i = 0; i < light->channels_count; i++) gb_lights_channel_release(&light->channels[i]); - light->channels_count--; - } + light->channels_count = 0; + kfree(light->channels); + light->channels = NULL; kfree(light->name); + light->name = NULL; } static void gb_lights_release(struct gb_lights *glights) diff --git a/drivers/staging/greybus/log.c b/drivers/staging/greybus/log.c index 15a88574dbb0..971f36dccac6 100644 --- a/drivers/staging/greybus/log.c +++ b/drivers/staging/greybus/log.c @@ -9,8 +9,7 @@ #include <linux/slab.h> #include <linux/sizes.h> #include <linux/uaccess.h> - -#include "greybus.h" +#include <linux/greybus.h> struct gb_log { struct gb_connection *connection; @@ -31,14 +30,14 @@ static int gb_log_request_handler(struct gb_operation *op) /* Verify size of payload */ if (op->request->payload_size < sizeof(*receive)) { dev_err(dev, "log request too small (%zu < %zu)\n", - op->request->payload_size, sizeof(*receive)); + op->request->payload_size, sizeof(*receive)); return -EINVAL; } receive = op->request->payload; len = le16_to_cpu(receive->len); if (len != (op->request->payload_size - sizeof(*receive))) { dev_err(dev, "log request wrong size %d vs %zu\n", len, - (op->request->payload_size - sizeof(*receive))); + (op->request->payload_size - sizeof(*receive))); return -EINVAL; } if (len == 0) { @@ -83,7 +82,7 @@ static int gb_log_probe(struct gb_bundle *bundle, return -ENOMEM; connection = gb_connection_create(bundle, le16_to_cpu(cport_desc->id), - gb_log_request_handler); + gb_log_request_handler); if (IS_ERR(connection)) { retval = PTR_ERR(connection); goto error_free; diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c index 48d85ebe404a..583d9708a191 100644 --- a/drivers/staging/greybus/loopback.c +++ b/drivers/staging/greybus/loopback.c @@ -25,12 +25,9 @@ #include <linux/workqueue.h> #include <linux/atomic.h> #include <linux/pm_runtime.h> - +#include <linux/greybus.h> #include <asm/div64.h> -#include "greybus.h" -#include "connection.h" - #define NSEC_PER_DAY 86400000000000ULL struct gb_loopback_stats { @@ -882,7 +879,7 @@ static int gb_loopback_fn(void *data) gb->type = 0; gb->send_count = 0; sysfs_notify(&gb->dev->kobj, NULL, - "iteration_count"); + "iteration_count"); dev_dbg(&bundle->dev, "load test complete\n"); } else { dev_dbg(&bundle->dev, @@ -1054,7 +1051,7 @@ static int gb_loopback_probe(struct gb_bundle *bundle, /* Allocate kfifo */ if (kfifo_alloc(&gb->kfifo_lat, kfifo_depth * sizeof(u32), - GFP_KERNEL)) { + GFP_KERNEL)) { retval = -ENOMEM; goto out_conn; } diff --git a/drivers/staging/greybus/power_supply.c b/drivers/staging/greybus/power_supply.c index 34b40a409ea3..ec96f28887f9 100644 --- a/drivers/staging/greybus/power_supply.c +++ b/drivers/staging/greybus/power_supply.c @@ -10,8 +10,7 @@ #include <linux/module.h> #include <linux/power_supply.h> #include <linux/slab.h> - -#include "greybus.h" +#include <linux/greybus.h> #define PROP_MAX 32 diff --git a/drivers/staging/greybus/pwm.c b/drivers/staging/greybus/pwm.c index 4a6d394b6c44..891a6a672378 100644 --- a/drivers/staging/greybus/pwm.c +++ b/drivers/staging/greybus/pwm.c @@ -10,8 +10,8 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/pwm.h> +#include <linux/greybus.h> -#include "greybus.h" #include "gbphy.h" struct gb_pwm_chip { diff --git a/drivers/staging/greybus/raw.c b/drivers/staging/greybus/raw.c index 838acbe84ca0..64a17dfe3b6e 100644 --- a/drivers/staging/greybus/raw.c +++ b/drivers/staging/greybus/raw.c @@ -13,8 +13,7 @@ #include <linux/fs.h> #include <linux/idr.h> #include <linux/uaccess.h> - -#include "greybus.h" +#include <linux/greybus.h> struct gb_raw { struct gb_connection *connection; diff --git a/drivers/staging/greybus/sdio.c b/drivers/staging/greybus/sdio.c index a097a8916b3b..68c5718be827 100644 --- a/drivers/staging/greybus/sdio.c +++ b/drivers/staging/greybus/sdio.c @@ -12,8 +12,8 @@ #include <linux/mmc/mmc.h> #include <linux/scatterlist.h> #include <linux/workqueue.h> +#include <linux/greybus.h> -#include "greybus.h" #include "gbphy.h" struct gb_sdio_host { diff --git a/drivers/staging/greybus/spi.c b/drivers/staging/greybus/spi.c index 47d896992b35..68e8d272db6d 100644 --- a/drivers/staging/greybus/spi.c +++ b/drivers/staging/greybus/spi.c @@ -7,8 +7,8 @@ */ #include <linux/module.h> +#include <linux/greybus.h> -#include "greybus.h" #include "gbphy.h" #include "spilib.h" diff --git a/drivers/staging/greybus/spilib.c b/drivers/staging/greybus/spilib.c index 2e07c6b41334..fc27c52de74a 100644 --- a/drivers/staging/greybus/spilib.c +++ b/drivers/staging/greybus/spilib.c @@ -10,9 +10,9 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> +#include <linux/greybus.h> #include <linux/spi/spi.h> -#include "greybus.h" #include "spilib.h" struct gb_spilib { diff --git a/drivers/staging/greybus/spilib.h b/drivers/staging/greybus/spilib.h index 043d4d32c3ee..9d416839e3be 100644 --- a/drivers/staging/greybus/spilib.h +++ b/drivers/staging/greybus/spilib.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus SPI library header * diff --git a/drivers/staging/greybus/tools/loopback_test.c b/drivers/staging/greybus/tools/loopback_test.c index cebc1d90a180..ba6f905f26fa 100644 --- a/drivers/staging/greybus/tools/loopback_test.c +++ b/drivers/staging/greybus/tools/loopback_test.c @@ -4,8 +4,6 @@ * * Copyright 2015 Google Inc. * Copyright 2015 Linaro Ltd. - * - * Provided under the three clause BSD license found in the LICENSE file. */ #include <errno.h> #include <fcntl.h> diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c index b3bffe91ae99..55c51143bb09 100644 --- a/drivers/staging/greybus/uart.c +++ b/drivers/staging/greybus/uart.c @@ -28,8 +28,8 @@ #include <linux/kfifo.h> #include <linux/workqueue.h> #include <linux/completion.h> +#include <linux/greybus.h> -#include "greybus.h" #include "gbphy.h" #define GB_NUM_MINORS 16 /* 16 is more than enough */ diff --git a/drivers/staging/greybus/usb.c b/drivers/staging/greybus/usb.c index 1c246c73a085..8e9d9d59a357 100644 --- a/drivers/staging/greybus/usb.c +++ b/drivers/staging/greybus/usb.c @@ -10,8 +10,8 @@ #include <linux/slab.h> #include <linux/usb.h> #include <linux/usb/hcd.h> +#include <linux/greybus.h> -#include "greybus.h" #include "gbphy.h" /* Greybus USB request types */ diff --git a/drivers/staging/greybus/vibrator.c b/drivers/staging/greybus/vibrator.c index 3e5dedeacd5c..0e2b188e5ca3 100644 --- a/drivers/staging/greybus/vibrator.c +++ b/drivers/staging/greybus/vibrator.c @@ -13,8 +13,7 @@ #include <linux/kdev_t.h> #include <linux/idr.h> #include <linux/pm_runtime.h> - -#include "greybus.h" +#include <linux/greybus.h> struct gb_vibrator_device { struct gb_connection *connection; diff --git a/drivers/staging/kpc2000/kpc2000/cell_probe.c b/drivers/staging/kpc2000/kpc2000/cell_probe.c index c124a836db27..738122afc2ae 100644 --- a/drivers/staging/kpc2000/kpc2000/cell_probe.c +++ b/drivers/staging/kpc2000/kpc2000/cell_probe.c @@ -53,15 +53,15 @@ struct core_table_entry { static void parse_core_table_entry_v0(struct core_table_entry *cte, const u64 read_val) { - cte->type = ((read_val & 0xFFF0000000000000) >> 52); - cte->offset = ((read_val & 0x00000000FFFF0000) >> 16) * 4096; - cte->length = ((read_val & 0x0000FFFF00000000) >> 32) * 8; - cte->s2c_dma_present = ((read_val & 0x0008000000000000) >> 51); - cte->s2c_dma_channel_num = ((read_val & 0x0007000000000000) >> 48); - cte->c2s_dma_present = ((read_val & 0x0000000000008000) >> 15); - cte->c2s_dma_channel_num = ((read_val & 0x0000000000007000) >> 12); - cte->irq_count = ((read_val & 0x0000000000000C00) >> 10); - cte->irq_base_num = ((read_val & 0x00000000000003F8) >> 3); + cte->type = ((read_val & 0xFFF0000000000000UL) >> 52); + cte->offset = ((read_val & 0x00000000FFFF0000UL) >> 16) * 4096; + cte->length = ((read_val & 0x0000FFFF00000000UL) >> 32) * 8; + cte->s2c_dma_present = ((read_val & 0x0008000000000000UL) >> 51); + cte->s2c_dma_channel_num = ((read_val & 0x0007000000000000UL) >> 48); + cte->c2s_dma_present = ((read_val & 0x0000000000008000UL) >> 15); + cte->c2s_dma_channel_num = ((read_val & 0x0000000000007000UL) >> 12); + cte->irq_count = ((read_val & 0x0000000000000C00UL) >> 10); + cte->irq_base_num = ((read_val & 0x00000000000003F8UL) >> 3); } static diff --git a/drivers/staging/kpc2000/kpc2000/core.c b/drivers/staging/kpc2000/kpc2000/core.c index cb05cca687e1..0a23727d0dc3 100644 --- a/drivers/staging/kpc2000/kpc2000/core.c +++ b/drivers/staging/kpc2000/kpc2000/core.c @@ -205,7 +205,7 @@ static void wait_and_read_ssid(struct kp2000_device *pcard) u64 read_val = readq(pcard->sysinfo_regs_base + REG_FPGA_SSID); unsigned long timeout; - if (read_val & 0x8000000000000000) { + if (read_val & 0x8000000000000000UL) { pcard->ssid = read_val; return; } @@ -213,7 +213,7 @@ static void wait_and_read_ssid(struct kp2000_device *pcard) timeout = jiffies + (HZ * 2); do { read_val = readq(pcard->sysinfo_regs_base + REG_FPGA_SSID); - if (read_val & 0x8000000000000000) { + if (read_val & 0x8000000000000000UL) { pcard->ssid = read_val; return; } @@ -241,16 +241,16 @@ static int read_system_regs(struct kp2000_device *pcard) } read_val = readq(pcard->sysinfo_regs_base + REG_CARD_ID_AND_BUILD); - pcard->card_id = (read_val & 0xFFFFFFFF00000000) >> 32; - pcard->build_version = (read_val & 0x00000000FFFFFFFF) >> 0; + pcard->card_id = (read_val & 0xFFFFFFFF00000000UL) >> 32; + pcard->build_version = (read_val & 0x00000000FFFFFFFFUL) >> 0; read_val = readq(pcard->sysinfo_regs_base + REG_DATE_AND_TIME_STAMPS); - pcard->build_datestamp = (read_val & 0xFFFFFFFF00000000) >> 32; - pcard->build_timestamp = (read_val & 0x00000000FFFFFFFF) >> 0; + pcard->build_datestamp = (read_val & 0xFFFFFFFF00000000UL) >> 32; + pcard->build_timestamp = (read_val & 0x00000000FFFFFFFFUL) >> 0; read_val = readq(pcard->sysinfo_regs_base + REG_CORE_TABLE_OFFSET); - pcard->core_table_length = (read_val & 0xFFFFFFFF00000000) >> 32; - pcard->core_table_offset = (read_val & 0x00000000FFFFFFFF) >> 0; + pcard->core_table_length = (read_val & 0xFFFFFFFF00000000UL) >> 32; + pcard->core_table_offset = (read_val & 0x00000000FFFFFFFFUL) >> 0; wait_and_read_ssid(pcard); @@ -401,7 +401,7 @@ static int kp2000_pcie_probe(struct pci_dev *pdev, goto err_release_dma; // Disable all "user" interrupts because they're not used yet. - writeq(0xFFFFFFFFFFFFFFFF, + writeq(0xFFFFFFFFFFFFFFFFUL, pcard->sysinfo_regs_base + REG_INTERRUPT_MASK); // let the card master PCIe diff --git a/drivers/staging/kpc2000/kpc2000_i2c.c b/drivers/staging/kpc2000/kpc2000_i2c.c index b108da4ac633..bc02534d8dc3 100644 --- a/drivers/staging/kpc2000/kpc2000_i2c.c +++ b/drivers/staging/kpc2000/kpc2000_i2c.c @@ -123,9 +123,9 @@ struct i2c_device { // FIXME! #undef inb_p -#define inb_p(a) readq((void *)a) +#define inb_p(a) readq((void __iomem *)a) #undef outb_p -#define outb_p(d, a) writeq(d, (void *)a) +#define outb_p(d, a) writeq(d, (void __iomem *)a) /* Make sure the SMBus host is ready to start transmitting. * Return 0 if it is, -EBUSY if it is not. diff --git a/drivers/staging/kpc2000/kpc_dma/fileops.c b/drivers/staging/kpc2000/kpc_dma/fileops.c index 48ca88bc6b0b..cb52bd9a6d2f 100644 --- a/drivers/staging/kpc2000/kpc_dma/fileops.c +++ b/drivers/staging/kpc2000/kpc_dma/fileops.c @@ -146,15 +146,15 @@ static int kpc_dma_transfer(struct dev_private_data *priv, card_addr += desc->DescByteCount; dma_addr = sg_dma_address(sg) + (p * 0x80000); - desc->DescSystemAddrLS = (dma_addr & 0x00000000FFFFFFFF) >> 0; - desc->DescSystemAddrMS = (dma_addr & 0xFFFFFFFF00000000) >> 32; + desc->DescSystemAddrLS = (dma_addr & 0x00000000FFFFFFFFUL) >> 0; + desc->DescSystemAddrMS = (dma_addr & 0xFFFFFFFF00000000UL) >> 32; user_ctl = acd->priv->user_ctl; if (i == acd->mapped_entry_count-1 && p == pcnt-1) { user_ctl = acd->priv->user_ctl_last; } - desc->DescUserControlLS = (user_ctl & 0x00000000FFFFFFFF) >> 0; - desc->DescUserControlMS = (user_ctl & 0xFFFFFFFF00000000) >> 32; + desc->DescUserControlLS = (user_ctl & 0x00000000FFFFFFFFUL) >> 0; + desc->DescUserControlMS = (user_ctl & 0xFFFFFFFF00000000UL) >> 32; if (i == acd->mapped_entry_count-1 && p == pcnt-1) desc->acd = acd; diff --git a/drivers/staging/most/core.c b/drivers/staging/most/core.c index b9841adb7181..8e9a0b67c6ed 100644 --- a/drivers/staging/most/core.c +++ b/drivers/staging/most/core.c @@ -303,7 +303,8 @@ static ssize_t set_datatype_show(struct device *dev, for (i = 0; i < ARRAY_SIZE(ch_data_type); i++) { if (c->cfg.data_type & ch_data_type[i].most_ch_data_type) - return snprintf(buf, PAGE_SIZE, "%s", ch_data_type[i].name); + return snprintf(buf, PAGE_SIZE, "%s", + ch_data_type[i].name); } return snprintf(buf, PAGE_SIZE, "unconfigured\n"); } @@ -721,6 +722,7 @@ int most_add_link(char *mdev, char *mdev_ch, char *comp_name, char *link_name, return link_channel_to_component(c, comp, link_name, comp_param); } + /** * remove_link_store - store function for remove_link attribute * @drv: device driver diff --git a/drivers/staging/most/sound/sound.c b/drivers/staging/most/sound/sound.c index 342f390d68b3..79817061fcfa 100644 --- a/drivers/staging/most/sound/sound.c +++ b/drivers/staging/most/sound/sound.c @@ -802,8 +802,11 @@ static int __init audio_init(void) if (ret) pr_err("Failed to register %s\n", comp.name); ret = most_register_configfs_subsys(&comp); - if (ret) + if (ret) { pr_err("Failed to register %s configfs subsys\n", comp.name); + most_deregister_component(&comp); + } + return ret; } diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c index 620da6c003d8..d4278361e002 100644 --- a/drivers/staging/rtl8188eu/core/rtw_recv.c +++ b/drivers/staging/rtl8188eu/core/rtw_recv.c @@ -1373,11 +1373,7 @@ static struct recv_frame *recvframe_defrag(struct adapter *adapter, /* append to first fragment frame's tail (if privacy frame, pull the ICV) */ skb_trim(prframe->pkt, prframe->pkt->len - prframe->attrib.icv_len); - /* memcpy */ - memcpy(skb_tail_pointer(prframe->pkt), pnfhdr->pkt->data, - pnfhdr->pkt->len); - - skb_put(prframe->pkt, pnfhdr->pkt->len); + skb_put_data(prframe->pkt, pnfhdr->pkt->data, pnfhdr->pkt->len); prframe->attrib.icv_len = pnfhdr->attrib.icv_len; plist = plist->next; diff --git a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c index eedf2cd831d1..aaab0d577453 100644 --- a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c +++ b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c @@ -122,8 +122,7 @@ static int recvbuf2recvframe(struct adapter *adapt, struct sk_buff *pskb) precvframe->pkt = pkt_copy; skb_reserve(pkt_copy, 8 - ((size_t)(pkt_copy->data) & 7));/* force pkt_copy->data at 8-byte alignment address */ skb_reserve(pkt_copy, shift_sz);/* force ip_hdr at 8-byte alignment address according to shift_sz. */ - memcpy(pkt_copy->data, (pbuf + pattrib->drvinfo_sz + RXDESC_SIZE), skb_len); - skb_put(precvframe->pkt, skb_len); + skb_put_data(pkt_copy, (pbuf + pattrib->drvinfo_sz + RXDESC_SIZE), skb_len); } else { DBG_88E("%s: alloc_skb fail , drop frag frame\n", __func__); diff --git a/drivers/staging/rtl8192e/Kconfig b/drivers/staging/rtl8192e/Kconfig index 11528d17bb3c..1007eea6c8fc 100644 --- a/drivers/staging/rtl8192e/Kconfig +++ b/drivers/staging/rtl8192e/Kconfig @@ -15,6 +15,7 @@ config RTLLIB_CRYPTO_CCMP tristate "Support for rtllib CCMP crypto" depends on RTLLIB select CRYPTO_AES + select CRYPTO_CCM default y help CCMP crypto driver for rtllib. diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c index 1b7e3fda7905..20e494186c9e 100644 --- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c +++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c @@ -618,7 +618,7 @@ static void _rtl92e_dm_tx_update_tssi_strong_signal(struct net_device *dev, static void _rtl92e_dm_tx_power_tracking_callback_tssi(struct net_device *dev) { struct r8192_priv *priv = rtllib_priv(dev); - bool bHighpowerstate, viviflag = false; + bool viviflag = false; struct dcmd_txcmd tx_cmd; u8 powerlevelOFDM24G; int i = 0, j = 0, k = 0; @@ -632,7 +632,6 @@ static void _rtl92e_dm_tx_power_tracking_callback_tssi(struct net_device *dev) rtl92e_writeb(dev, Pw_Track_Flag, 0); rtl92e_writeb(dev, FW_Busy_Flag, 0); priv->rtllib->bdynamic_txpower_enable = false; - bHighpowerstate = priv->bDynamicTxHighPower; powerlevelOFDM24G = (u8)(priv->Pwr_Track>>24); RF_Type = priv->rf_type; @@ -1901,7 +1900,7 @@ static void _rtl92e_dm_rx_path_sel_byrssi(struct net_device *dev) u8 cck_default_Rx = 0x2; u8 cck_optional_Rx = 0x3; long tmp_cck_max_pwdb = 0, tmp_cck_min_pwdb = 0, tmp_cck_sec_pwdb = 0; - u8 cck_rx_ver2_max_index = 0, cck_rx_ver2_min_index = 0; + u8 cck_rx_ver2_max_index = 0; u8 cck_rx_ver2_sec_index = 0; u8 cur_rf_rssi; long cur_cck_pwdb; @@ -1984,7 +1983,6 @@ static void _rtl92e_dm_rx_path_sel_byrssi(struct net_device *dev) if (rf_num == 1) { cck_rx_ver2_max_index = i; - cck_rx_ver2_min_index = i; cck_rx_ver2_sec_index = i; tmp_cck_max_pwdb = cur_cck_pwdb; tmp_cck_min_pwdb = cur_cck_pwdb; @@ -1997,7 +1995,6 @@ static void _rtl92e_dm_rx_path_sel_byrssi(struct net_device *dev) tmp_cck_sec_pwdb = cur_cck_pwdb; tmp_cck_min_pwdb = cur_cck_pwdb; cck_rx_ver2_sec_index = i; - cck_rx_ver2_min_index = i; } } else { if (cur_cck_pwdb > tmp_cck_max_pwdb) { @@ -2027,13 +2024,10 @@ static void _rtl92e_dm_rx_path_sel_byrssi(struct net_device *dev) (cur_cck_pwdb > tmp_cck_min_pwdb)) { ; } else if (cur_cck_pwdb == tmp_cck_min_pwdb) { - if (tmp_cck_sec_pwdb == tmp_cck_min_pwdb) { + if (tmp_cck_sec_pwdb == tmp_cck_min_pwdb) tmp_cck_min_pwdb = cur_cck_pwdb; - cck_rx_ver2_min_index = i; - } } else if (cur_cck_pwdb < tmp_cck_min_pwdb) { tmp_cck_min_pwdb = cur_cck_pwdb; - cck_rx_ver2_min_index = i; } } diff --git a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c index 2581ed6d14fa..0cbf4a1a326b 100644 --- a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c +++ b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c @@ -17,6 +17,7 @@ #include "rtllib.h" #include <linux/crypto.h> +#include <crypto/aead.h> #include <linux/scatterlist.h> @@ -39,20 +40,13 @@ struct rtllib_ccmp_data { int key_idx; - struct crypto_tfm *tfm; + struct crypto_aead *tfm; /* scratch buffers for virt_to_page() (crypto API) */ - u8 tx_b0[AES_BLOCK_LEN], tx_b[AES_BLOCK_LEN], - tx_e[AES_BLOCK_LEN], tx_s0[AES_BLOCK_LEN]; - u8 rx_b0[AES_BLOCK_LEN], rx_b[AES_BLOCK_LEN], rx_a[AES_BLOCK_LEN]; + u8 tx_aad[2 * AES_BLOCK_LEN]; + u8 rx_aad[2 * AES_BLOCK_LEN]; }; -static void rtllib_ccmp_aes_encrypt(struct crypto_tfm *tfm, - const u8 pt[16], u8 ct[16]) -{ - crypto_cipher_encrypt_one((void *)tfm, ct, pt); -} - static void *rtllib_ccmp_init(int key_idx) { struct rtllib_ccmp_data *priv; @@ -62,7 +56,7 @@ static void *rtllib_ccmp_init(int key_idx) goto fail; priv->key_idx = key_idx; - priv->tfm = (void *)crypto_alloc_cipher("aes", 0, 0); + priv->tfm = crypto_alloc_aead("ccm(aes)", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->tfm)) { pr_debug("Could not allocate crypto API aes\n"); priv->tfm = NULL; @@ -73,7 +67,7 @@ static void *rtllib_ccmp_init(int key_idx) fail: if (priv) { if (priv->tfm) - crypto_free_cipher((void *)priv->tfm); + crypto_free_aead(priv->tfm); kfree(priv); } @@ -86,31 +80,18 @@ static void rtllib_ccmp_deinit(void *priv) struct rtllib_ccmp_data *_priv = priv; if (_priv && _priv->tfm) - crypto_free_cipher((void *)_priv->tfm); + crypto_free_aead(_priv->tfm); kfree(priv); } -static inline void xor_block(u8 *b, u8 *a, size_t len) -{ - int i; - - for (i = 0; i < len; i++) - b[i] ^= a[i]; -} - - - -static void ccmp_init_blocks(struct crypto_tfm *tfm, - struct rtllib_hdr_4addr *hdr, - u8 *pn, size_t dlen, u8 *b0, u8 *auth, - u8 *s0) +static int ccmp_init_iv_and_aad(struct rtllib_hdr_4addr *hdr, + u8 *pn, u8 *iv, u8 *aad) { u8 *pos, qc = 0; size_t aad_len; u16 fc; int a4_included, qc_included; - u8 aad[2 * AES_BLOCK_LEN]; fc = le16_to_cpu(hdr->frame_ctl); a4_included = ((fc & (RTLLIB_FCTL_TODS | RTLLIB_FCTL_FROMDS)) == @@ -128,18 +109,19 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm, qc = *pos & 0x0f; aad_len += 2; } - /* CCM Initial Block: - * Flag (Include authentication header, M=3 (8-octet MIC), - * L=1 (2-octet Dlen)) - * Nonce: 0x00 | A2 | PN - * Dlen + /* In CCM, the initial vectors (IV) used for CTR mode encryption and CBC + * mode authentication are not allowed to collide, yet both are derived + * from the same vector. We only set L := 1 here to indicate that the + * data size can be represented in (L+1) bytes. The CCM layer will take + * care of storing the data length in the top (L+1) bytes and setting + * and clearing the other bits as is required to derive the two IVs. */ - b0[0] = 0x59; - b0[1] = qc; - memcpy(b0 + 2, hdr->addr2, ETH_ALEN); - memcpy(b0 + 8, pn, CCMP_PN_LEN); - b0[14] = (dlen >> 8) & 0xff; - b0[15] = dlen & 0xff; + iv[0] = 0x1; + + /* Nonce: QC | A2 | PN */ + iv[1] = qc; + memcpy(iv + 2, hdr->addr2, ETH_ALEN); + memcpy(iv + 8, pn, CCMP_PN_LEN); /* AAD: * FC with bits 4..6 and 11..13 masked to zero; 14 is always one @@ -149,31 +131,21 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm, * QC (if present) */ pos = (u8 *) hdr; - aad[0] = 0; /* aad_len >> 8 */ - aad[1] = aad_len & 0xff; - aad[2] = pos[0] & 0x8f; - aad[3] = pos[1] & 0xc7; - memcpy(aad + 4, hdr->addr1, 3 * ETH_ALEN); + aad[0] = pos[0] & 0x8f; + aad[1] = pos[1] & 0xc7; + memcpy(aad + 2, hdr->addr1, 3 * ETH_ALEN); pos = (u8 *) &hdr->seq_ctl; - aad[22] = pos[0] & 0x0f; - aad[23] = 0; /* all bits masked */ - memset(aad + 24, 0, 8); + aad[20] = pos[0] & 0x0f; + aad[21] = 0; /* all bits masked */ + memset(aad + 22, 0, 8); if (a4_included) - memcpy(aad + 24, hdr->addr4, ETH_ALEN); + memcpy(aad + 22, hdr->addr4, ETH_ALEN); if (qc_included) { - aad[a4_included ? 30 : 24] = qc; + aad[a4_included ? 28 : 22] = qc; /* rest of QC masked */ } - /* Start with the first block and AAD */ - rtllib_ccmp_aes_encrypt(tfm, b0, auth); - xor_block(auth, aad, AES_BLOCK_LEN); - rtllib_ccmp_aes_encrypt(tfm, auth, auth); - xor_block(auth, &aad[AES_BLOCK_LEN], AES_BLOCK_LEN); - rtllib_ccmp_aes_encrypt(tfm, auth, auth); - b0[0] &= 0x07; - b0[14] = b0[15] = 0; - rtllib_ccmp_aes_encrypt(tfm, b0, s0); + return aad_len; } @@ -181,7 +153,7 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm, static int rtllib_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) { struct rtllib_ccmp_data *key = priv; - int data_len, i; + int i; u8 *pos; struct rtllib_hdr_4addr *hdr; struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + @@ -191,7 +163,6 @@ static int rtllib_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) skb->len < hdr_len) return -1; - data_len = skb->len - hdr_len; pos = skb_push(skb, CCMP_HDR_LEN); memmove(pos, pos + CCMP_HDR_LEN, hdr_len); pos += hdr_len; @@ -213,40 +184,37 @@ static int rtllib_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) *pos++ = key->tx_pn[1]; *pos++ = key->tx_pn[0]; - hdr = (struct rtllib_hdr_4addr *) skb->data; if (!tcb_desc->bHwSec) { - int blocks, last, len; - u8 *mic; - u8 *b0 = key->tx_b0; - u8 *b = key->tx_b; - u8 *e = key->tx_e; - u8 *s0 = key->tx_s0; - - mic = skb_put(skb, CCMP_MIC_LEN); - - ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, - b0, b, s0); - - blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN); - last = data_len % AES_BLOCK_LEN; - - for (i = 1; i <= blocks; i++) { - len = (i == blocks && last) ? last : AES_BLOCK_LEN; - /* Authentication */ - xor_block(b, pos, len); - rtllib_ccmp_aes_encrypt(key->tfm, b, b); - /* Encryption, with counter */ - b0[14] = (i >> 8) & 0xff; - b0[15] = i & 0xff; - rtllib_ccmp_aes_encrypt(key->tfm, b0, e); - xor_block(pos, e, len); - pos += len; - } + struct aead_request *req; + struct scatterlist sg[2]; + u8 *aad = key->tx_aad; + u8 iv[AES_BLOCK_LEN]; + int aad_len, ret; + int data_len = skb->len - hdr_len - CCMP_HDR_LEN; + + req = aead_request_alloc(key->tfm, GFP_ATOMIC); + if (!req) + return -ENOMEM; + + aad_len = ccmp_init_iv_and_aad(hdr, key->tx_pn, iv, aad); + + skb_put(skb, CCMP_MIC_LEN); + sg_init_table(sg, 2); + sg_set_buf(&sg[0], aad, aad_len); + sg_set_buf(&sg[1], skb->data + hdr_len + CCMP_HDR_LEN, + data_len + CCMP_MIC_LEN); - for (i = 0; i < CCMP_MIC_LEN; i++) - mic[i] = b[i] ^ s0[i]; + aead_request_set_callback(req, 0, NULL, NULL); + aead_request_set_ad(req, aad_len); + aead_request_set_crypt(req, sg, sg, data_len, iv); + + ret = crypto_aead_encrypt(req); + aead_request_free(req); + + return ret; } + return 0; } @@ -302,35 +270,31 @@ static int rtllib_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) return -4; } if (!tcb_desc->bHwSec) { - size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN - - CCMP_MIC_LEN; - u8 *mic = skb->data + skb->len - CCMP_MIC_LEN; - u8 *b0 = key->rx_b0; - u8 *b = key->rx_b; - u8 *a = key->rx_a; - int i, blocks, last, len; - - - ccmp_init_blocks(key->tfm, hdr, pn, data_len, b0, a, b); - xor_block(mic, b, CCMP_MIC_LEN); - - blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN); - last = data_len % AES_BLOCK_LEN; - - for (i = 1; i <= blocks; i++) { - len = (i == blocks && last) ? last : AES_BLOCK_LEN; - /* Decrypt, with counter */ - b0[14] = (i >> 8) & 0xff; - b0[15] = i & 0xff; - rtllib_ccmp_aes_encrypt(key->tfm, b0, b); - xor_block(pos, b, len); - /* Authentication */ - xor_block(a, pos, len); - rtllib_ccmp_aes_encrypt(key->tfm, a, a); - pos += len; - } + size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN; + struct aead_request *req; + struct scatterlist sg[2]; + u8 *aad = key->rx_aad; + u8 iv[AES_BLOCK_LEN]; + int aad_len, ret; + + req = aead_request_alloc(key->tfm, GFP_ATOMIC); + if(!req) + return -ENOMEM; + + aad_len = ccmp_init_iv_and_aad(hdr, pn, iv, aad); + + sg_init_table(sg, 2); + sg_set_buf(&sg[0], aad, aad_len); + sg_set_buf(&sg[1], pos, data_len); + + aead_request_set_callback(req, 0, NULL, NULL); + aead_request_set_ad(req, aad_len); + aead_request_set_crypt(req, sg, sg, data_len, iv); + + ret = crypto_aead_decrypt(req); + aead_request_free(req); - if (memcmp(mic, a, CCMP_MIC_LEN) != 0) { + if (ret) { if (net_ratelimit()) { pr_debug("CCMP: decrypt failed: STA= %pM\n", hdr->addr2); @@ -354,7 +318,7 @@ static int rtllib_ccmp_set_key(void *key, int len, u8 *seq, void *priv) { struct rtllib_ccmp_data *data = priv; int keyidx; - struct crypto_tfm *tfm = data->tfm; + struct crypto_aead *tfm = data->tfm; keyidx = data->key_idx; memset(data, 0, sizeof(*data)); @@ -371,7 +335,9 @@ static int rtllib_ccmp_set_key(void *key, int len, u8 *seq, void *priv) data->rx_pn[4] = seq[1]; data->rx_pn[5] = seq[0]; } - crypto_cipher_setkey((void *)data->tfm, data->key, CCMP_TK_LEN); + if (crypto_aead_setauthsize(data->tfm, CCMP_MIC_LEN) || + crypto_aead_setkey(data->tfm, data->key, CCMP_TK_LEN)) + return -1; } else if (len == 0) { data->key_set = 0; } else { diff --git a/drivers/staging/rtl8192u/Kconfig b/drivers/staging/rtl8192u/Kconfig index 22c2165e8b1c..1edca5c304fb 100644 --- a/drivers/staging/rtl8192u/Kconfig +++ b/drivers/staging/rtl8192u/Kconfig @@ -6,3 +6,5 @@ config RTL8192U select WIRELESS_EXT select WEXT_PRIV select CRYPTO + select CRYPTO_AES + select CRYPTO_CCM diff --git a/drivers/staging/rtl8192u/ieee80211/dot11d.c b/drivers/staging/rtl8192u/ieee80211/dot11d.c index 130ddfe9868f..bc642076b96f 100644 --- a/drivers/staging/rtl8192u/ieee80211/dot11d.c +++ b/drivers/staging/rtl8192u/ieee80211/dot11d.c @@ -12,7 +12,7 @@ void rtl8192u_dot11d_init(struct ieee80211_device *ieee) dot11d_info->state = DOT11D_STATE_NONE; dot11d_info->country_ie_len = 0; memset(dot11d_info->channel_map, 0, MAX_CHANNEL_NUMBER + 1); - memset(dot11d_info->max_tx_pwr_dbm_list, 0xFF, MAX_CHANNEL_NUMBER+1); + memset(dot11d_info->max_tx_pwr_dbm_list, 0xFF, MAX_CHANNEL_NUMBER + 1); RESET_CIE_WATCHDOG(ieee); netdev_info(ieee->dev, "rtl8192u_dot11d_init()\n"); @@ -25,8 +25,8 @@ void dot11d_reset(struct ieee80211_device *ieee) u32 i; struct rt_dot11d_info *dot11d_info = GET_DOT11D_INFO(ieee); /* Clear old channel map */ - memset(dot11d_info->channel_map, 0, MAX_CHANNEL_NUMBER+1); - memset(dot11d_info->max_tx_pwr_dbm_list, 0xFF, MAX_CHANNEL_NUMBER+1); + memset(dot11d_info->channel_map, 0, MAX_CHANNEL_NUMBER + 1); + memset(dot11d_info->max_tx_pwr_dbm_list, 0xFF, MAX_CHANNEL_NUMBER + 1); /* Set new channel map */ for (i = 1; i <= 11; i++) (dot11d_info->channel_map)[i] = 1; @@ -56,8 +56,8 @@ void dot11d_update_country_ie(struct ieee80211_device *dev, u8 *pTaddr, u8 i, j, NumTriples, MaxChnlNum; struct chnl_txpower_triple *pTriple; - memset(dot11d_info->channel_map, 0, MAX_CHANNEL_NUMBER+1); - memset(dot11d_info->max_tx_pwr_dbm_list, 0xFF, MAX_CHANNEL_NUMBER+1); + memset(dot11d_info->channel_map, 0, MAX_CHANNEL_NUMBER + 1); + memset(dot11d_info->max_tx_pwr_dbm_list, 0xFF, MAX_CHANNEL_NUMBER + 1); MaxChnlNum = 0; NumTriples = (CoutryIeLen - 3) / 3; /* skip 3-byte country string. */ pTriple = (struct chnl_txpower_triple *)(pCoutryIe + 3); diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211.h b/drivers/staging/rtl8192u/ieee80211/ieee80211.h index 3963a08b9eb2..9576b647f6b1 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211.h +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211.h @@ -169,9 +169,9 @@ struct cb_desc { #define MGN_MCS14 0x8e #define MGN_MCS15 0x8f -#define aSifsTime ((priv->ieee80211->current_network.mode == IEEE_A || \ +#define aSifsTime ((priv->ieee80211->current_network.mode == IEEE_A || \ priv->ieee80211->current_network.mode == IEEE_N_24G || \ - priv->ieee80211->current_network.mode == IEEE_N_5G) ? \ + priv->ieee80211->current_network.mode == IEEE_N_5G) ? \ 16 : 10) #define MGMT_QUEUE_NUM 5 @@ -387,7 +387,7 @@ struct ieee_param { #define IEEE80211_STYPE_ACK 0x00D0 #define IEEE80211_STYPE_CFEND 0x00E0 #define IEEE80211_STYPE_CFENDACK 0x00F0 -#define IEEE80211_STYPE_BLOCKACK 0x0094 +#define IEEE80211_STYPE_BLOCKACK 0x0094 /* data */ #define IEEE80211_STYPE_DATA 0x0000 @@ -452,23 +452,23 @@ do { if (ieee80211_debug_level & (level)) \ printk(KERN_DEBUG "ieee80211: " fmt, ## args); } while (0) //wb added to debug out data buf //if you want print DATA buffer related BA, please set ieee80211_debug_level to DATA|BA -#define IEEE80211_DEBUG_DATA(level, data, datalen) \ - do { if ((ieee80211_debug_level & (level)) == (level)) \ - { \ - int i; \ - u8 *pdata = (u8 *) data; \ - printk(KERN_DEBUG "ieee80211: %s()\n", __func__); \ - for (i = 0; i < (int)(datalen); i++) \ - { \ - printk("%2x ", pdata[i]); \ - if ((i + 1) % 16 == 0) printk("\n"); \ - } \ - printk("\n"); \ - } \ +#define IEEE80211_DEBUG_DATA(level, data, datalen) \ + do { if ((ieee80211_debug_level & (level)) == (level)) \ + { \ + int i; \ + u8 *pdata = (u8 *)data; \ + printk(KERN_DEBUG "ieee80211: %s()\n", __func__); \ + for (i = 0; i < (int)(datalen); i++) { \ + printk("%2x ", pdata[i]); \ + if ((i + 1) % 16 == 0) \ + printk("\n"); \ + } \ + printk("\n"); \ + } \ } while (0) #else #define IEEE80211_DEBUG (level, fmt, args...) do {} while (0) -#define IEEE80211_DEBUG_DATA (level, data, datalen) do {} while(0) +#define IEEE80211_DEBUG_DATA (level, data, datalen) do {} while (0) #endif /* CONFIG_IEEE80211_DEBUG */ /* debug macros not dependent on CONFIG_IEEE80211_DEBUG */ @@ -1649,10 +1649,8 @@ struct ieee80211_device { struct list_head Rx_TS_Pending_List; struct list_head Rx_TS_Unused_List; struct rx_ts_record RxTsRecord[TOTAL_TS_NUM]; -//#ifdef TO_DO_LIST struct rx_reorder_entry RxReorderEntry[128]; struct list_head RxReorder_Unused_List; -//#endif // Qos related. Added by Annie, 2005-11-01. // PSTA_QOS pStaQos; u8 ForcedPriority; // Force per-packet priority 1~7. (default: 0, not to force it.) @@ -2015,8 +2013,8 @@ struct ieee80211_device { #define IEEE_A (1<<0) #define IEEE_B (1<<1) #define IEEE_G (1<<2) -#define IEEE_N_24G (1<<4) -#define IEEE_N_5G (1<<5) +#define IEEE_N_24G (1<<4) +#define IEEE_N_5G (1<<5) #define IEEE_MODE_MASK (IEEE_A | IEEE_B | IEEE_G) /* Generate a 802.11 header */ diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c index 36987fccac5d..01012dddcd73 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c @@ -176,7 +176,7 @@ struct ieee80211_crypto_ops *ieee80211_get_crypto_ops(const char *name) } -static void *ieee80211_crypt_null_init(int keyidx) { return (void *) 1; } +static void *ieee80211_crypt_null_init(int keyidx) { return (void *)1; } static void ieee80211_crypt_null_deinit(void *priv) {} static struct ieee80211_crypto_ops ieee80211_crypt_null = { diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c index d7188b3f3190..c241cf484023 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c @@ -19,6 +19,7 @@ #include "ieee80211.h" #include <linux/crypto.h> +#include <crypto/aead.h> #include <linux/scatterlist.h> MODULE_AUTHOR("Jouni Malinen"); @@ -44,20 +45,13 @@ struct ieee80211_ccmp_data { int key_idx; - struct crypto_tfm *tfm; + struct crypto_aead *tfm; /* scratch buffers for virt_to_page() (crypto API) */ - u8 tx_b0[AES_BLOCK_LEN], tx_b[AES_BLOCK_LEN], - tx_e[AES_BLOCK_LEN], tx_s0[AES_BLOCK_LEN]; - u8 rx_b0[AES_BLOCK_LEN], rx_b[AES_BLOCK_LEN], rx_a[AES_BLOCK_LEN]; + u8 tx_aad[2 * AES_BLOCK_LEN]; + u8 rx_aad[2 * AES_BLOCK_LEN]; }; -static void ieee80211_ccmp_aes_encrypt(struct crypto_tfm *tfm, - const u8 pt[16], u8 ct[16]) -{ - crypto_cipher_encrypt_one((void *)tfm, ct, pt); -} - static void *ieee80211_ccmp_init(int key_idx) { struct ieee80211_ccmp_data *priv; @@ -67,7 +61,7 @@ static void *ieee80211_ccmp_init(int key_idx) goto fail; priv->key_idx = key_idx; - priv->tfm = (void *)crypto_alloc_cipher("aes", 0, 0); + priv->tfm = crypto_alloc_aead("ccm(aes)", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->tfm)) { pr_debug("ieee80211_crypt_ccmp: could not allocate crypto API aes\n"); priv->tfm = NULL; @@ -79,7 +73,7 @@ static void *ieee80211_ccmp_init(int key_idx) fail: if (priv) { if (priv->tfm) - crypto_free_cipher((void *)priv->tfm); + crypto_free_aead(priv->tfm); kfree(priv); } @@ -91,28 +85,17 @@ static void ieee80211_ccmp_deinit(void *priv) struct ieee80211_ccmp_data *_priv = priv; if (_priv && _priv->tfm) - crypto_free_cipher((void *)_priv->tfm); + crypto_free_aead(_priv->tfm); kfree(priv); } -static inline void xor_block(u8 *b, u8 *a, size_t len) -{ - int i; - - for (i = 0; i < len; i++) - b[i] ^= a[i]; -} - -static void ccmp_init_blocks(struct crypto_tfm *tfm, - struct rtl_80211_hdr_4addr *hdr, - u8 *pn, size_t dlen, u8 *b0, u8 *auth, - u8 *s0) +static int ccmp_init_iv_and_aad(struct rtl_80211_hdr_4addr *hdr, + u8 *pn, u8 *iv, u8 *aad) { u8 *pos, qc = 0; size_t aad_len; u16 fc; int a4_included, qc_included; - u8 aad[2 * AES_BLOCK_LEN]; fc = le16_to_cpu(hdr->frame_ctl); a4_included = ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == @@ -133,18 +116,20 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm, qc = *pos & 0x0f; aad_len += 2; } - /* CCM Initial Block: - * Flag (Include authentication header, M=3 (8-octet MIC), - * L=1 (2-octet Dlen)) - * Nonce: 0x00 | A2 | PN - * Dlen + + /* In CCM, the initial vectors (IV) used for CTR mode encryption and CBC + * mode authentication are not allowed to collide, yet both are derived + * from the same vector. We only set L := 1 here to indicate that the + * data size can be represented in (L+1) bytes. The CCM layer will take + * care of storing the data length in the top (L+1) bytes and setting + * and clearing the other bits as is required to derive the two IVs. */ - b0[0] = 0x59; - b0[1] = qc; - memcpy(b0 + 2, hdr->addr2, ETH_ALEN); - memcpy(b0 + 8, pn, CCMP_PN_LEN); - b0[14] = (dlen >> 8) & 0xff; - b0[15] = dlen & 0xff; + iv[0] = 0x1; + + /* Nonce: QC | A2 | PN */ + iv[1] = qc; + memcpy(iv + 2, hdr->addr2, ETH_ALEN); + memcpy(iv + 8, pn, CCMP_PN_LEN); /* AAD: * FC with bits 4..6 and 11..13 masked to zero; 14 is always one @@ -154,38 +139,27 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm, * QC (if present) */ pos = (u8 *)hdr; - aad[0] = 0; /* aad_len >> 8 */ - aad[1] = aad_len & 0xff; - aad[2] = pos[0] & 0x8f; - aad[3] = pos[1] & 0xc7; - memcpy(aad + 4, hdr->addr1, 3 * ETH_ALEN); + aad[0] = pos[0] & 0x8f; + aad[1] = pos[1] & 0xc7; + memcpy(aad + 2, hdr->addr1, 3 * ETH_ALEN); pos = (u8 *)&hdr->seq_ctl; - aad[22] = pos[0] & 0x0f; - aad[23] = 0; /* all bits masked */ - memset(aad + 24, 0, 8); + aad[20] = pos[0] & 0x0f; + aad[21] = 0; /* all bits masked */ + memset(aad + 22, 0, 8); if (a4_included) - memcpy(aad + 24, hdr->addr4, ETH_ALEN); + memcpy(aad + 22, hdr->addr4, ETH_ALEN); if (qc_included) { - aad[a4_included ? 30 : 24] = qc; + aad[a4_included ? 28 : 22] = qc; /* rest of QC masked */ } - /* Start with the first block and AAD */ - ieee80211_ccmp_aes_encrypt(tfm, b0, auth); - xor_block(auth, aad, AES_BLOCK_LEN); - ieee80211_ccmp_aes_encrypt(tfm, auth, auth); - xor_block(auth, &aad[AES_BLOCK_LEN], AES_BLOCK_LEN); - ieee80211_ccmp_aes_encrypt(tfm, auth, auth); - b0[0] &= 0x07; - b0[14] = 0; - b0[15] = 0; - ieee80211_ccmp_aes_encrypt(tfm, b0, s0); + return aad_len; } static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) { struct ieee80211_ccmp_data *key = priv; - int data_len, i; + int i; u8 *pos; struct rtl_80211_hdr_4addr *hdr; struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); @@ -195,7 +169,6 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) skb->len < hdr_len) return -1; - data_len = skb->len - hdr_len; pos = skb_push(skb, CCMP_HDR_LEN); memmove(pos, pos + CCMP_HDR_LEN, hdr_len); pos += hdr_len; @@ -220,36 +193,34 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) hdr = (struct rtl_80211_hdr_4addr *)skb->data; if (!tcb_desc->bHwSec) { - int blocks, last, len; - u8 *mic; - u8 *b0 = key->tx_b0; - u8 *b = key->tx_b; - u8 *e = key->tx_e; - u8 *s0 = key->tx_s0; - - /* mic is moved to here by john */ - mic = skb_put(skb, CCMP_MIC_LEN); - - ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0); - - blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN); - last = data_len % AES_BLOCK_LEN; - - for (i = 1; i <= blocks; i++) { - len = (i == blocks && last) ? last : AES_BLOCK_LEN; - /* Authentication */ - xor_block(b, pos, len); - ieee80211_ccmp_aes_encrypt(key->tfm, b, b); - /* Encryption, with counter */ - b0[14] = (i >> 8) & 0xff; - b0[15] = i & 0xff; - ieee80211_ccmp_aes_encrypt(key->tfm, b0, e); - xor_block(pos, e, len); - pos += len; - } + struct aead_request *req; + struct scatterlist sg[2]; + u8 *aad = key->tx_aad; + u8 iv[AES_BLOCK_LEN]; + int aad_len, ret; + size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN; - for (i = 0; i < CCMP_MIC_LEN; i++) - mic[i] = b[i] ^ s0[i]; + req = aead_request_alloc(key->tfm, GFP_ATOMIC); + if (!req) + return -ENOMEM; + + aad_len = ccmp_init_iv_and_aad(hdr, key->tx_pn, iv, aad); + + skb_put(skb, CCMP_MIC_LEN); + + sg_init_table(sg, 2); + sg_set_buf(&sg[0], aad, aad_len); + sg_set_buf(&sg[1], skb->data + hdr_len + CCMP_HDR_LEN, + data_len + CCMP_MIC_LEN); + + aead_request_set_callback(req, 0, NULL, NULL); + aead_request_set_ad(req, aad_len); + aead_request_set_crypt(req, sg, sg, data_len, iv); + + ret = crypto_aead_encrypt(req); + aead_request_free(req); + + return ret; } return 0; } @@ -309,33 +280,31 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) return -4; } if (!tcb_desc->bHwSec) { - size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN - CCMP_MIC_LEN; - u8 *mic = skb->data + skb->len - CCMP_MIC_LEN; - u8 *b0 = key->rx_b0; - u8 *b = key->rx_b; - u8 *a = key->rx_a; - int i, blocks, last, len; - - ccmp_init_blocks(key->tfm, hdr, pn, data_len, b0, a, b); - xor_block(mic, b, CCMP_MIC_LEN); - - blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN); - last = data_len % AES_BLOCK_LEN; - - for (i = 1; i <= blocks; i++) { - len = (i == blocks && last) ? last : AES_BLOCK_LEN; - /* Decrypt, with counter */ - b0[14] = (i >> 8) & 0xff; - b0[15] = i & 0xff; - ieee80211_ccmp_aes_encrypt(key->tfm, b0, b); - xor_block(pos, b, len); - /* Authentication */ - xor_block(a, pos, len); - ieee80211_ccmp_aes_encrypt(key->tfm, a, a); - pos += len; - } + struct aead_request *req; + struct scatterlist sg[2]; + u8 *aad = key->rx_aad; + u8 iv[AES_BLOCK_LEN]; + int aad_len, ret; + size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN; + + req = aead_request_alloc(key->tfm, GFP_ATOMIC); + if (!req) + return -ENOMEM; + + aad_len = ccmp_init_iv_and_aad(hdr, pn, iv, aad); + + sg_init_table(sg, 2); + sg_set_buf(&sg[0], aad, aad_len); + sg_set_buf(&sg[1], pos, data_len); + + aead_request_set_callback(req, 0, NULL, NULL); + aead_request_set_ad(req, aad_len); + aead_request_set_crypt(req, sg, sg, data_len, iv); + + ret = crypto_aead_decrypt(req); + aead_request_free(req); - if (memcmp(mic, a, CCMP_MIC_LEN) != 0) { + if (ret) { if (net_ratelimit()) { netdev_dbg(skb->dev, "CCMP: decrypt failed: STA=%pM\n", hdr->addr2); @@ -358,12 +327,11 @@ static int ieee80211_ccmp_set_key(void *key, int len, u8 *seq, void *priv) { struct ieee80211_ccmp_data *data = priv; int keyidx; - struct crypto_tfm *tfm = data->tfm; + struct crypto_aead *tfm = data->tfm; keyidx = data->key_idx; memset(data, 0, sizeof(*data)); data->key_idx = keyidx; - data->tfm = tfm; if (len == CCMP_TK_LEN) { memcpy(data->key, key, CCMP_TK_LEN); data->key_set = 1; @@ -375,7 +343,9 @@ static int ieee80211_ccmp_set_key(void *key, int len, u8 *seq, void *priv) data->rx_pn[4] = seq[1]; data->rx_pn[5] = seq[0]; } - crypto_cipher_setkey((void *)data->tfm, data->key, CCMP_TK_LEN); + if (crypto_aead_setauthsize(tfm, CCMP_MIC_LEN) || + crypto_aead_setkey(tfm, data->key, CCMP_TK_LEN)) + return -1; } else if (len == 0) { data->key_set = 0; } else { diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c index 0927b2b15151..6f4710171151 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c @@ -160,7 +160,7 @@ static inline u16 Hi16(u32 val) static inline u16 Mk16(u8 hi, u8 lo) { - return lo | (((u16) hi) << 8); + return lo | (((u16)hi) << 8); } static const u16 Sbox[256] = { @@ -238,7 +238,7 @@ static void tkip_mixing_phase2(u8 *WEPSeed, const u8 *TK, const u16 *TTAK, * Make temporary area overlap WEP seed so that the final copy can be * avoided on little endian hosts. */ - u16 *PPK = (u16 *) &WEPSeed[4]; + u16 *PPK = (u16 *)&WEPSeed[4]; /* Step 1 - make copy of TTAK and bring in TSC */ PPK[0] = TTAK[0]; @@ -299,7 +299,7 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) skb->len < hdr_len) return -1; - hdr = (struct rtl_80211_hdr_4addr *) skb->data; + hdr = (struct rtl_80211_hdr_4addr *)skb->data; if (!tcb_desc->bHwSec) { if (!tkey->tx_phase1_done) { @@ -343,7 +343,7 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) icv[2] = crc >> 16; icv[3] = crc >> 24; crypto_sync_skcipher_setkey(tkey->tx_tfm_arc4, rc4key, 16); - sg_init_one(&sg, pos, len+4); + sg_init_one(&sg, pos, len + 4); skcipher_request_set_sync_tfm(req, tkey->tx_tfm_arc4); skcipher_request_set_callback(req, 0, NULL, NULL); skcipher_request_set_crypt(req, &sg, &sg, len + 4, NULL); @@ -383,7 +383,7 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) if (skb->len < hdr_len + 8 + 4) return -1; - hdr = (struct rtl_80211_hdr_4addr *) skb->data; + hdr = (struct rtl_80211_hdr_4addr *)skb->data; pos = skb->data + hdr_len; keyidx = pos[3]; if (!(keyidx & BIT(5))) { @@ -435,7 +435,7 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) plen = skb->len - hdr_len - 12; crypto_sync_skcipher_setkey(tkey->rx_tfm_arc4, rc4key, 16); - sg_init_one(&sg, pos, plen+4); + sg_init_one(&sg, pos, plen + 4); skcipher_request_set_sync_tfm(req, tkey->rx_tfm_arc4); skcipher_request_set_callback(req, 0, NULL, NULL); @@ -523,7 +523,7 @@ static void michael_mic_hdr(struct sk_buff *skb, u8 *hdr) { struct rtl_80211_hdr_4addr *hdr11; - hdr11 = (struct rtl_80211_hdr_4addr *) skb->data; + hdr11 = (struct rtl_80211_hdr_4addr *)skb->data; switch (le16_to_cpu(hdr11->frame_ctl) & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) { case IEEE80211_FCTL_TODS: @@ -556,7 +556,7 @@ static int ieee80211_michael_mic_add(struct sk_buff *skb, int hdr_len, void *pri u8 *pos; struct rtl_80211_hdr_4addr *hdr; - hdr = (struct rtl_80211_hdr_4addr *) skb->data; + hdr = (struct rtl_80211_hdr_4addr *)skb->data; if (skb_tailroom(skb) < 8 || skb->len < hdr_len) { printk(KERN_DEBUG "Invalid packet for Michael MIC add " @@ -599,7 +599,7 @@ static void ieee80211_michael_mic_failure(struct net_device *dev, memcpy(ev.src_addr.sa_data, hdr->addr2, ETH_ALEN); memset(&wrqu, 0, sizeof(wrqu)); wrqu.data.length = sizeof(ev); - wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu, (char *) &ev); + wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev); } static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx, @@ -609,7 +609,7 @@ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx, u8 mic[8]; struct rtl_80211_hdr_4addr *hdr; - hdr = (struct rtl_80211_hdr_4addr *) skb->data; + hdr = (struct rtl_80211_hdr_4addr *)skb->data; if (!tkey->key_set) return -1; @@ -626,7 +626,7 @@ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx, return -1; if (memcmp(mic, skb->data + skb->len - 8, 8) != 0) { struct rtl_80211_hdr_4addr *hdr; - hdr = (struct rtl_80211_hdr_4addr *) skb->data; + hdr = (struct rtl_80211_hdr_4addr *)skb->data; printk(KERN_DEBUG "%s: Michael MIC verification failed for " "MSDU from %pM keyidx=%d\n", diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c index 805493a0870d..26482c3dcd1c 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c @@ -135,7 +135,7 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) icv[3] = crc >> 24; crypto_sync_skcipher_setkey(wep->tx_tfm, key, klen); - sg_init_one(&sg, pos, len+4); + sg_init_one(&sg, pos, len + 4); skcipher_request_set_sync_tfm(req, wep->tx_tfm); skcipher_request_set_callback(req, 0, NULL, NULL); @@ -192,7 +192,7 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) SYNC_SKCIPHER_REQUEST_ON_STACK(req, wep->rx_tfm); crypto_sync_skcipher_setkey(wep->rx_tfm, key, klen); - sg_init_one(&sg, pos, plen+4); + sg_init_one(&sg, pos, plen + 4); skcipher_request_set_sync_tfm(req, wep->rx_tfm); skcipher_request_set_callback(req, 0, NULL, NULL); diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c index 7ef1e89de269..5c33bcb0db2e 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c @@ -103,17 +103,17 @@ ieee80211_frag_cache_get(struct ieee80211_device *ieee, u8 tid; if (((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS) && IEEE80211_QOS_HAS_SEQ(fc)) { - hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)hdr; - tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID; - tid = UP2AC(tid); - tid++; + hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)hdr; + tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID; + tid = UP2AC(tid); + tid++; } else if (IEEE80211_QOS_HAS_SEQ(fc)) { - hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)hdr; - tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID; - tid = UP2AC(tid); - tid++; + hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)hdr; + tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID; + tid = UP2AC(tid); + tid++; } else { - tid = 0; + tid = 0; } if (frag == 0) { @@ -170,17 +170,17 @@ static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee, u8 tid; if (((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS) && IEEE80211_QOS_HAS_SEQ(fc)) { - hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)hdr; - tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID; - tid = UP2AC(tid); - tid++; + hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)hdr; + tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID; + tid = UP2AC(tid); + tid++; } else if (IEEE80211_QOS_HAS_SEQ(fc)) { - hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)hdr; - tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID; - tid = UP2AC(tid); - tid++; + hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)hdr; + tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID; + tid = UP2AC(tid); + tid++; } else { - tid = 0; + tid = 0; } entry = ieee80211_frag_cache_find(ieee, seq, -1, tid, hdr->addr2, @@ -218,8 +218,8 @@ ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb, rx_stats->len = skb->len; ieee80211_rx_mgt(ieee, (struct rtl_80211_hdr_4addr *)skb->data, rx_stats); /* if ((ieee->state == IEEE80211_LINKED) && (memcmp(hdr->addr3, ieee->current_network.bssid, ETH_ALEN))) */ - if ((memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN)))/* use ADDR1 to perform address matching for Management frames */ - { + if ((memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN))) { + /* use ADDR1 to perform address matching for Management frames */ dev_kfree_skb_any(skb); return 0; } @@ -339,8 +339,7 @@ ieee80211_rx_frame_decrypt(struct ieee80211_device *ieee, struct sk_buff *skb, if (!crypt || !crypt->ops->decrypt_mpdu) return 0; - if (ieee->hwsec_active) - { + if (ieee->hwsec_active) { struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); tcb_desc->bHwSec = 1; } @@ -386,8 +385,7 @@ ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device *ieee, struct sk_buff *s if (!crypt || !crypt->ops->decrypt_msdu) return 0; - if (ieee->hwsec_active) - { + if (ieee->hwsec_active) { struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); tcb_desc->bHwSec = 1; } @@ -427,17 +425,17 @@ static int is_duplicate_packet(struct ieee80211_device *ieee, //TO2DS and QoS if (((fc & IEEE80211_FCTL_DSTODS) == IEEE80211_FCTL_DSTODS) && IEEE80211_QOS_HAS_SEQ(fc)) { - hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)header; - tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID; - tid = UP2AC(tid); - tid++; + hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)header; + tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID; + tid = UP2AC(tid); + tid++; } else if (IEEE80211_QOS_HAS_SEQ(fc)) { //QoS - hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)header; - tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID; - tid = UP2AC(tid); - tid++; + hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)header; + tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID; + tid = UP2AC(tid); + tid++; } else { // no QoS - tid = 0; + tid = 0; } switch (ieee->iw_mode) { @@ -507,8 +505,7 @@ drop: static bool AddReorderEntry(struct rx_ts_record *pTS, struct rx_reorder_entry *pReorderEntry) { struct list_head *pList = &pTS->rx_pending_pkt_list; - while (pList->next != &pTS->rx_pending_pkt_list) - { + while (pList->next != &pTS->rx_pending_pkt_list) { if (SN_LESS(pReorderEntry->SeqNum, list_entry(pList->next, struct rx_reorder_entry, List)->SeqNum)) pList = pList->next; else if (SN_EQUAL(pReorderEntry->SeqNum, list_entry(pList->next, struct rx_reorder_entry, List)->SeqNum)) @@ -530,8 +527,7 @@ void ieee80211_indicate_packets(struct ieee80211_device *ieee, struct ieee80211_ u16 ethertype; // if(index > 1) // IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): hahahahhhh, We indicate packet from reorder list, index is %u\n",__func__,index); - for (j = 0; j < index; j++) - { + for (j = 0; j < index; j++) { //added by amy for reorder struct ieee80211_rxb *prxb = prxbIndicateArray[j]; for (i = 0; i < prxb->nr_subframes; i++) { @@ -699,8 +695,7 @@ static void RxReorderIndicatePacket(struct ieee80211_device *ieee, IEEE80211_DEBUG(IEEE80211_DL_REORDER, "%s(): start RREORDER indicate\n", __func__); pReorderEntry = list_entry(pTS->rx_pending_pkt_list.prev, struct rx_reorder_entry, List); if (SN_LESS(pReorderEntry->SeqNum, pTS->rx_indicate_seq) || - SN_EQUAL(pReorderEntry->SeqNum, pTS->rx_indicate_seq)) - { + SN_EQUAL(pReorderEntry->SeqNum, pTS->rx_indicate_seq)) { /* This protect buffer from overflow. */ if (index >= REORDER_WIN_SIZE) { IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Buffer overflow!! \n"); @@ -922,8 +917,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, frag = WLAN_GET_SEQ_FRAG(sc); hdrlen = ieee80211_get_hdrlen(fc); - if (HTCCheck(ieee, skb->data)) - { + if (HTCCheck(ieee, skb->data)) { if (net_ratelimit()) printk("find HTCControl\n"); hdrlen += 4; @@ -999,7 +993,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, // if QoS enabled, should check the sequence for each of the AC if ((!ieee->pHTInfo->bCurRxReorderEnable) || !ieee->current_network.qos_data.active || !IsDataFrame(skb->data) || IsLegacyDataFrame(skb->data)) { if (is_duplicate_packet(ieee, hdr)) - goto rx_dropped; + goto rx_dropped; } else { struct rx_ts_record *pRxTS = NULL; @@ -1010,8 +1004,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, hdr->addr2, Frame_QoSTID((u8 *)(skb->data)), RX_DIR, - true)) - { + true)) { // IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): pRxTS->rx_last_frag_num is %d,frag is %d,pRxTS->rx_last_seq_num is %d,seq is %d\n",__func__,pRxTS->rx_last_frag_num,frag,pRxTS->rx_last_seq_num,WLAN_GET_SEQ_SEQ(sc)); if ((fc & (1 << 11)) && @@ -1119,8 +1112,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, /* skb: hdr + (possibly fragmented, possibly encrypted) payload */ if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) && - (keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0) - { + (keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0) { printk("decrypt frame error\n"); goto rx_dropped; } @@ -1185,8 +1177,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, /* skb: hdr + (possible reassembled) full MSDU payload; possibly still * encrypted/authenticated */ if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) && - ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt)) - { + ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt)) { printk("==>decrypt msdu error\n"); goto rx_dropped; } @@ -1220,10 +1211,10 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, #ifdef CONFIG_IEEE80211_DEBUG if (crypt && !(fc & IEEE80211_FCTL_WEP) && ieee80211_is_eapol_frame(ieee, skb, hdrlen)) { - struct eapol *eap = (struct eapol *)(skb->data + - 24); - IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n", - eap_get_type(eap->type)); + struct eapol *eap = (struct eapol *)(skb->data + + 24); + IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n", + eap_get_type(eap->type)); } #endif @@ -1243,13 +1234,11 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, */ //added by amy for reorder if (ieee->current_network.qos_data.active && IsQoSDataFrame(skb->data) - && !is_multicast_ether_addr(hdr->addr1)) - { + && !is_multicast_ether_addr(hdr->addr1)) { TID = Frame_QoSTID(skb->data); SeqNum = WLAN_GET_SEQ_SEQ(sc); - GetTs(ieee, (struct ts_common_info **) &pTS, hdr->addr2, TID, RX_DIR, true); - if (TID != 0 && TID != 3) - { + GetTs(ieee, (struct ts_common_info **)&pTS, hdr->addr2, TID, RX_DIR, true); + if (TID != 0 && TID != 3) { ieee->bis_any_nonbepkts = true; } } @@ -1549,15 +1538,12 @@ static inline void ieee80211_extract_country_ie( u8 *addr2 ) { - if (IS_DOT11D_ENABLE(ieee)) - { - if (info_element->len != 0) - { + if (IS_DOT11D_ENABLE(ieee)) { + if (info_element->len != 0) { memcpy(network->CountryIeBuf, info_element->data, info_element->len); network->CountryIeLen = info_element->len; - if (!IS_COUNTRY_IE_VALID(ieee)) - { + if (!IS_COUNTRY_IE_VALID(ieee)) { dot11d_update_country_ie(ieee, addr2, info_element->len, info_element->data); } } @@ -1567,8 +1553,7 @@ static inline void ieee80211_extract_country_ie( // some AP (e.g. Cisco 1242) don't include country IE in their // probe response frame. // - if (IS_EQUAL_CIE_SRC(ieee, addr2)) - { + if (IS_EQUAL_CIE_SRC(ieee, addr2)) { UPDATE_CIE_WATCHDOG(ieee); } } @@ -1785,13 +1770,13 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee, info_element->data[2] == 0x4c && info_element->data[3] == 0x033){ - tmp_htcap_len = min(info_element->len, (u8)MAX_IE_LEN); - if (tmp_htcap_len != 0) { - network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC; - network->bssht.bdHTCapLen = tmp_htcap_len > sizeof(network->bssht.bdHTCapBuf) ? \ - sizeof(network->bssht.bdHTCapBuf) : tmp_htcap_len; - memcpy(network->bssht.bdHTCapBuf, info_element->data, network->bssht.bdHTCapLen); - } + tmp_htcap_len = min(info_element->len, (u8)MAX_IE_LEN); + if (tmp_htcap_len != 0) { + network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC; + network->bssht.bdHTCapLen = tmp_htcap_len > sizeof(network->bssht.bdHTCapBuf) ? \ + sizeof(network->bssht.bdHTCapBuf) : tmp_htcap_len; + memcpy(network->bssht.bdHTCapBuf, info_element->data, network->bssht.bdHTCapLen); + } } if (tmp_htcap_len != 0) network->bssht.bdSupportHT = true; @@ -1807,17 +1792,17 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee, info_element->data[2] == 0x4c && info_element->data[3] == 0x034){ - tmp_htinfo_len = min(info_element->len, (u8)MAX_IE_LEN); - if (tmp_htinfo_len != 0) { - network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC; - if (tmp_htinfo_len) { - network->bssht.bdHTInfoLen = tmp_htinfo_len > sizeof(network->bssht.bdHTInfoBuf) ? \ - sizeof(network->bssht.bdHTInfoBuf) : tmp_htinfo_len; - memcpy(network->bssht.bdHTInfoBuf, info_element->data, network->bssht.bdHTInfoLen); - } - + tmp_htinfo_len = min(info_element->len, (u8)MAX_IE_LEN); + if (tmp_htinfo_len != 0) { + network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC; + if (tmp_htinfo_len) { + network->bssht.bdHTInfoLen = tmp_htinfo_len > sizeof(network->bssht.bdHTInfoBuf) ? \ + sizeof(network->bssht.bdHTInfoBuf) : tmp_htinfo_len; + memcpy(network->bssht.bdHTInfoBuf, info_element->data, network->bssht.bdHTInfoLen); } + } + } } @@ -1837,7 +1822,7 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee, network->bssht.bdRT2RTAggregation = true; if ((ht_realtek_agg_buf[4] == 1) && (ht_realtek_agg_buf[5] & 0x02)) - network->bssht.bdRT2RTLongSlotTime = true; + network->bssht.bdRT2RTLongSlotTime = true; } } @@ -1858,15 +1843,14 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee, info_element->data[1] == 0x10 && info_element->data[2] == 0x18)){ - network->broadcom_cap_exist = true; + network->broadcom_cap_exist = true; } } if (info_element->len >= 3 && info_element->data[0] == 0x00 && info_element->data[1] == 0x0c && - info_element->data[2] == 0x43) - { + info_element->data[2] == 0x43) { network->ralink_cap_exist = true; } else network->ralink_cap_exist = false; @@ -1878,8 +1862,7 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee, (info_element->len >= 3 && info_element->data[0] == 0x00 && info_element->data[1] == 0x13 && - info_element->data[2] == 0x74)) - { + info_element->data[2] == 0x74)) { printk("========>%s(): athros AP is exist\n", __func__); network->atheros_cap_exist = true; } else @@ -1888,8 +1871,7 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee, if (info_element->len >= 3 && info_element->data[0] == 0x00 && info_element->data[1] == 0x40 && - info_element->data[2] == 0x96) - { + info_element->data[2] == 0x96) { network->cisco_cap_exist = true; } else network->cisco_cap_exist = false; @@ -1898,22 +1880,18 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee, info_element->data[0] == 0x00 && info_element->data[1] == 0x40 && info_element->data[2] == 0x96 && - info_element->data[3] == 0x01) - { - if (info_element->len == 6) - { + info_element->data[3] == 0x01) { + if (info_element->len == 6) { memcpy(network->CcxRmState, &info_element[4], 2); if (network->CcxRmState[0] != 0) - { network->bCcxRmEnable = true; - } else + else network->bCcxRmEnable = false; // // CCXv4 Table 59-1 MBSSID Masks. // network->MBssidMask = network->CcxRmState[1] & 0x07; - if (network->MBssidMask != 0) - { + if (network->MBssidMask != 0) { network->bMBssidValid = true; network->MBssidMask = 0xff << (network->MBssidMask); ether_addr_copy(network->MBssid, network->bssid); @@ -1929,8 +1907,7 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee, info_element->data[0] == 0x00 && info_element->data[1] == 0x40 && info_element->data[2] == 0x96 && - info_element->data[3] == 0x03) - { + info_element->data[3] == 0x03) { if (info_element->len == 5) { network->bWithCcxVerNum = true; network->BssCcxVerNumber = info_element->data[4]; @@ -1985,16 +1962,14 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee, case MFIE_TYPE_AIRONET: IEEE80211_DEBUG_SCAN("MFIE_TYPE_AIRONET: %d bytes\n", info_element->len); - if (info_element->len > IE_CISCO_FLAG_POSITION) - { + if (info_element->len > IE_CISCO_FLAG_POSITION) { network->bWithAironetIE = true; // CCX 1 spec v1.13, A01.1 CKIP Negotiation (page23): // "A Cisco access point advertises support for CKIP in beacon and probe response packets, // by adding an Aironet element and setting one or both of the CKIP negotiation bits." if ((info_element->data[IE_CISCO_FLAG_POSITION] & SUPPORT_CKIP_MIC) || - (info_element->data[IE_CISCO_FLAG_POSITION] & SUPPORT_CKIP_PK)) - { + (info_element->data[IE_CISCO_FLAG_POSITION] & SUPPORT_CKIP_PK)) { network->bCkipSupported = true; } else { network->bCkipSupported = false; @@ -2214,8 +2189,7 @@ static inline void update_network(struct ieee80211_network *dst, dst->rates_len = src->rates_len; memcpy(dst->rates_ex, src->rates_ex, src->rates_ex_len); dst->rates_ex_len = src->rates_ex_len; - if (src->ssid_len > 0) - { + if (src->ssid_len > 0) { memset(dst->ssid, 0, dst->ssid_len); dst->ssid_len = src->ssid_len; memcpy(dst->ssid, src->ssid, src->ssid_len); @@ -2224,8 +2198,7 @@ static inline void update_network(struct ieee80211_network *dst, dst->flags = src->flags; dst->time_stamp[0] = src->time_stamp[0]; dst->time_stamp[1] = src->time_stamp[1]; - if (src->flags & NETWORK_HAS_ERP_VALUE) - { + if (src->flags & NETWORK_HAS_ERP_VALUE) { dst->erp_value = src->erp_value; dst->berp_info_valid = src->berp_info_valid = true; } @@ -2289,7 +2262,7 @@ static inline void update_network(struct ieee80211_network *dst, src->wmm_param[1].aci_aifsn || \ src->wmm_param[2].aci_aifsn || \ src->wmm_param[3].aci_aifsn) { - memcpy(dst->wmm_param, src->wmm_param, WME_AC_PRAM_LEN); + memcpy(dst->wmm_param, src->wmm_param, WME_AC_PRAM_LEN); } //dst->QoS_Enable = src->QoS_Enable; #ifdef THOMAS_TURBO @@ -2379,41 +2352,33 @@ static inline void ieee80211_process_probe_response( if (!is_legal_channel(ieee, network->channel)) goto out; - if (ieee->bGlobalDomain) - { - if (fc == IEEE80211_STYPE_PROBE_RESP) - { - // Case 1: Country code + if (ieee->bGlobalDomain) { + if (fc == IEEE80211_STYPE_PROBE_RESP) { if (IS_COUNTRY_IE_VALID(ieee)) { + // Case 1: Country code if (!is_legal_channel(ieee, network->channel)) { printk("GetScanInfo(): For Country code, filter probe response at channel(%d).\n", network->channel); goto out; } - } - // Case 2: No any country code. - else - { + } else { + // Case 2: No any country code. // Filter over channel ch12~14 - if (network->channel > 11) - { + if (network->channel > 11) { printk("GetScanInfo(): For Global Domain, filter probe response at channel(%d).\n", network->channel); goto out; } } } else { - // Case 1: Country code if (IS_COUNTRY_IE_VALID(ieee)) { + // Case 1: Country code if (!is_legal_channel(ieee, network->channel)) { printk("GetScanInfo(): For Country code, filter beacon at channel(%d).\n", network->channel); goto out; } - } - // Case 2: No any country code. - else - { + } else { + // Case 2: No any country code. // Filter over channel ch12~14 - if (network->channel > 14) - { + if (network->channel > 14) { printk("GetScanInfo(): For Global Domain, filter beacon at channel(%d).\n", network->channel); goto out; } @@ -2436,14 +2401,13 @@ static inline void ieee80211_process_probe_response( if (is_same_network(&ieee->current_network, network, ieee)) { update_network(&ieee->current_network, network); if ((ieee->current_network.mode == IEEE_N_24G || ieee->current_network.mode == IEEE_G) - && ieee->current_network.berp_info_valid){ - if (ieee->current_network.erp_value & ERP_UseProtection) - ieee->current_network.buseprotection = true; - else - ieee->current_network.buseprotection = false; + && ieee->current_network.berp_info_valid){ + if (ieee->current_network.erp_value & ERP_UseProtection) + ieee->current_network.buseprotection = true; + else + ieee->current_network.buseprotection = false; } - if (is_beacon(beacon->header.frame_ctl)) - { + if (is_beacon(beacon->header.frame_ctl)) { if (ieee->state == IEEE80211_LINKED) ieee->LinkDetectInfo.NumRecvBcnInPeriod++; } else //hidden AP diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c index e0da0900a4f7..33a6af7aad22 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c @@ -743,7 +743,6 @@ static struct sk_buff *ieee80211_probe_resp(struct ieee80211_device *ieee, u8 *d if (ieee->short_slot && (ieee->current_network.capability & WLAN_CAPABILITY_SHORT_SLOT)) beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT); - crypt = ieee->crypt[ieee->tx_keyidx]; if (encrypt) beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY); diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac_wx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac_wx.c index 4a8d16a45fc5..b1baaa18b129 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac_wx.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac_wx.c @@ -42,8 +42,8 @@ int ieee80211_wx_set_freq(struct ieee80211_device *ieee, struct iw_request_info /* if setting by freq convert to channel */ if (fwrq->e == 1) { - if ((fwrq->m >= (int) 2.412e8 && - fwrq->m <= (int) 2.487e8)) { + if ((fwrq->m >= (int)2.412e8 && + fwrq->m <= (int)2.487e8)) { int f = fwrq->m / 100000; int c = 0; @@ -92,7 +92,7 @@ int ieee80211_wx_get_freq(struct ieee80211_device *ieee, if (ieee->current_network.channel == 0) return -1; /* NM 0.7.0 will not accept channel any more. */ - fwrq->m = ieee80211_wlan_frequencies[ieee->current_network.channel-1] * 100000; + fwrq->m = ieee80211_wlan_frequencies[ieee->current_network.channel - 1] * 100000; fwrq->e = 1; /* fwrq->m = ieee->current_network.channel; */ /* fwrq->e = 0; */ @@ -220,7 +220,7 @@ int ieee80211_wx_set_rate(struct ieee80211_device *ieee, u32 target_rate = wrqu->bitrate.value; - ieee->rate = target_rate/100000; + ieee->rate = target_rate / 100000; /* FIXME: we might want to limit rate also in management protocols. */ return 0; } @@ -415,9 +415,9 @@ int ieee80211_wx_set_essid(struct ieee80211_device *ieee, if (wrqu->essid.flags && wrqu->essid.length) { /* first flush current network.ssid */ - len = ((wrqu->essid.length-1) < IW_ESSID_MAX_SIZE) ? (wrqu->essid.length-1) : IW_ESSID_MAX_SIZE; - strncpy(ieee->current_network.ssid, extra, len+1); - ieee->current_network.ssid_len = len+1; + len = ((wrqu->essid.length - 1) < IW_ESSID_MAX_SIZE) ? (wrqu->essid.length - 1) : IW_ESSID_MAX_SIZE; + strncpy(ieee->current_network.ssid, extra, len + 1); + ieee->current_network.ssid_len = len + 1; ieee->ssid_set = 1; } else { ieee->ssid_set = 0; diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c index fc6eb97801e1..f0b6b8372f91 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c @@ -214,7 +214,8 @@ int ieee80211_encrypt_fragment( } -void ieee80211_txb_free(struct ieee80211_txb *txb) { +void ieee80211_txb_free(struct ieee80211_txb *txb) +{ //int i; if (unlikely(!txb)) return; @@ -293,7 +294,7 @@ static void ieee80211_tx_query_agg_cap(struct ieee80211_device *ieee, struct tx_ts_record *pTxTs = NULL; struct rtl_80211_hdr_1addr *hdr = (struct rtl_80211_hdr_1addr *)skb->data; - if (!pHTInfo->bCurrentHTSupport||!pHTInfo->bEnableHT) + if (!pHTInfo->bCurrentHTSupport || !pHTInfo->bEnableHT) return; if (!IsQoSDataFrame(skb->data)) return; @@ -301,13 +302,6 @@ static void ieee80211_tx_query_agg_cap(struct ieee80211_device *ieee, if (is_multicast_ether_addr(hdr->addr1)) return; //check packet and mode later -#ifdef TO_DO_LIST - if (pTcb->PacketLength >= 4096) - return; - // For RTL819X, if pairwisekey = wep/tkip, we don't aggrregation. - if (!Adapter->HalFunc.GetNmodeSupportBySecCfgHandler(Adapter)) - return; -#endif if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) { return; } @@ -333,8 +327,7 @@ static void ieee80211_tx_query_agg_cap(struct ieee80211_device *ieee, } } FORCED_AGG_SETTING: - switch (pHTInfo->ForcedAMPDUMode ) - { + switch (pHTInfo->ForcedAMPDUMode) { case HT_AGG_AUTO: break; @@ -372,7 +365,7 @@ ieee80211_query_HTCapShortGI(struct ieee80211_device *ieee, struct cb_desc *tcb_ tcb_desc->bUseShortGI = false; - if (!pHTInfo->bCurrentHTSupport||!pHTInfo->bEnableHT) + if (!pHTInfo->bCurrentHTSupport || !pHTInfo->bEnableHT) return; if (pHTInfo->bForcedShortGI) { @@ -380,9 +373,9 @@ ieee80211_query_HTCapShortGI(struct ieee80211_device *ieee, struct cb_desc *tcb_ return; } - if ((pHTInfo->bCurBW40MHz==true) && pHTInfo->bCurShortGI40MHz) + if ((pHTInfo->bCurBW40MHz == true) && pHTInfo->bCurShortGI40MHz) tcb_desc->bUseShortGI = true; - else if ((pHTInfo->bCurBW40MHz==false) && pHTInfo->bCurShortGI20MHz) + else if ((pHTInfo->bCurBW40MHz == false) && pHTInfo->bCurShortGI20MHz) tcb_desc->bUseShortGI = true; } @@ -393,16 +386,16 @@ static void ieee80211_query_BandwidthMode(struct ieee80211_device *ieee, tcb_desc->bPacketBW = false; - if (!pHTInfo->bCurrentHTSupport||!pHTInfo->bEnableHT) + if (!pHTInfo->bCurrentHTSupport || !pHTInfo->bEnableHT) return; if (tcb_desc->bMulticast || tcb_desc->bBroadcast) return; - if ((tcb_desc->data_rate & 0x80)==0) // If using legacy rate, it shall use 20MHz channel. + if ((tcb_desc->data_rate & 0x80) == 0) // If using legacy rate, it shall use 20MHz channel. return; //BandWidthAutoSwitch is for auto switch to 20 or 40 in long distance - if(pHTInfo->bCurBW40MHz && pHTInfo->bCurTxBW40MHz && !ieee->bandwidth_auto_switch.bforced_tx20Mhz) + if (pHTInfo->bCurBW40MHz && pHTInfo->bCurTxBW40MHz && !ieee->bandwidth_auto_switch.bforced_tx20Mhz) tcb_desc->bPacketBW = true; return; } @@ -418,25 +411,21 @@ static void ieee80211_query_protectionmode(struct ieee80211_device *ieee, tcb_desc->RTSSC = 0; // 20MHz: Don't care; 40MHz: Duplicate. tcb_desc->bRTSBW = false; // RTS frame bandwidth is always 20MHz - if(tcb_desc->bBroadcast || tcb_desc->bMulticast)//only unicast frame will use rts/cts + if (tcb_desc->bBroadcast || tcb_desc->bMulticast) //only unicast frame will use rts/cts return; - if (is_broadcast_ether_addr(skb->data+16)) //check addr3 as infrastructure add3 is DA. + if (is_broadcast_ether_addr(skb->data + 16)) //check addr3 as infrastructure add3 is DA. return; - if (ieee->mode < IEEE_N_24G) //b, g mode - { + if (ieee->mode < IEEE_N_24G) /* b, g mode */ { // (1) RTS_Threshold is compared to the MPDU, not MSDU. // (2) If there are more than one frag in this MSDU, only the first frag uses protection frame. // Other fragments are protected by previous fragment. // So we only need to check the length of first fragment. - if (skb->len > ieee->rts) - { + if (skb->len > ieee->rts) { tcb_desc->bRTSEnable = true; tcb_desc->rts_rate = MGN_24M; - } - else if (ieee->current_network.buseprotection) - { + } else if (ieee->current_network.buseprotection) { // Use CTS-to-SELF in protection mode. tcb_desc->bRTSEnable = true; tcb_desc->bCTSEnable = true; @@ -444,43 +433,35 @@ static void ieee80211_query_protectionmode(struct ieee80211_device *ieee, } //otherwise return; return; - } - else - {// 11n High throughput case. + } else { // 11n High throughput case. PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; - while (true) - { + while (true) { //check ERP protection - if (ieee->current_network.buseprotection) - {// CTS-to-SELF + if (ieee->current_network.buseprotection) {// CTS-to-SELF tcb_desc->bRTSEnable = true; tcb_desc->bCTSEnable = true; tcb_desc->rts_rate = MGN_24M; break; } //check HT op mode - if(pHTInfo->bCurrentHTSupport && pHTInfo->bEnableHT) - { + if (pHTInfo->bCurrentHTSupport && pHTInfo->bEnableHT) { u8 HTOpMode = pHTInfo->CurrentOpMode; - if((pHTInfo->bCurBW40MHz && (HTOpMode == 2 || HTOpMode == 3)) || - (!pHTInfo->bCurBW40MHz && HTOpMode == 3) ) - { + if ((pHTInfo->bCurBW40MHz && (HTOpMode == 2 || HTOpMode == 3)) || + (!pHTInfo->bCurBW40MHz && HTOpMode == 3)) { tcb_desc->rts_rate = MGN_24M; // Rate is 24Mbps. tcb_desc->bRTSEnable = true; break; } } //check rts - if (skb->len > ieee->rts) - { + if (skb->len > ieee->rts) { tcb_desc->rts_rate = MGN_24M; // Rate is 24Mbps. tcb_desc->bRTSEnable = true; break; } //to do list: check MIMO power save condition. //check AMPDU aggregation for TXOP - if(tcb_desc->bAMPDUEnable) - { + if (tcb_desc->bAMPDUEnable) { tcb_desc->rts_rate = MGN_24M; // Rate is 24Mbps. // According to 8190 design, firmware sends CF-End only if RTS/CTS is enabled. However, it degrads // throughput around 10M, so we disable of this mechanism. 2007.08.03 by Emily @@ -488,8 +469,7 @@ static void ieee80211_query_protectionmode(struct ieee80211_device *ieee, break; } //check IOT action - if(pHTInfo->IOTAction & HT_IOT_ACT_FORCED_CTS2SELF) - { + if (pHTInfo->IOTAction & HT_IOT_ACT_FORCED_CTS2SELF) { tcb_desc->bCTSEnable = true; tcb_desc->rts_rate = MGN_24M; tcb_desc->bRTSEnable = true; @@ -508,7 +488,7 @@ static void ieee80211_query_protectionmode(struct ieee80211_device *ieee, if (ieee->current_network.capability & WLAN_CAPABILITY_SHORT_PREAMBLE) tcb_desc->bUseShortPreamble = true; if (ieee->mode == IW_MODE_MASTER) - goto NO_PROTECTION; + goto NO_PROTECTION; return; NO_PROTECTION: tcb_desc->bRTSEnable = false; @@ -522,27 +502,12 @@ NO_PROTECTION: static void ieee80211_txrate_selectmode(struct ieee80211_device *ieee, struct cb_desc *tcb_desc) { -#ifdef TO_DO_LIST - if (!IsDataFrame(pFrame)) { - pTcb->bTxDisableRateFallBack = true; - pTcb->bTxUseDriverAssingedRate = true; - pTcb->RATRIndex = 7; - return; - } - - if (pMgntInfo->ForcedDataRate!= 0) { - pTcb->bTxDisableRateFallBack = true; - pTcb->bTxUseDriverAssingedRate = true; - return; - } -#endif if (ieee->bTxDisableRateFallBack) tcb_desc->bTxDisableRateFallBack = true; if (ieee->bTxUseDriverAssingedRate) tcb_desc->bTxUseDriverAssingedRate = true; - if (!tcb_desc->bTxDisableRateFallBack || !tcb_desc->bTxUseDriverAssingedRate) - { + if (!tcb_desc->bTxDisableRateFallBack || !tcb_desc->bTxUseDriverAssingedRate) { if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) tcb_desc->RATRIndex = 0; } @@ -553,11 +518,9 @@ static void ieee80211_query_seqnum(struct ieee80211_device *ieee, { if (is_multicast_ether_addr(dst)) return; - if (IsQoSDataFrame(skb->data)) //we deal qos data only - { + if (IsQoSDataFrame(skb->data)) /* we deal qos data only */ { struct tx_ts_record *pTS = NULL; - if (!GetTs(ieee, (struct ts_common_info **)(&pTS), dst, skb->priority, TX_DIR, true)) - { + if (!GetTs(ieee, (struct ts_common_info **)(&pTS), dst, skb->priority, TX_DIR, true)) { return; } pTS->tx_cur_seq = (pTS->tx_cur_seq + 1) % 4096; @@ -592,7 +555,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) /* If there is no driver handler to take the TXB, dont' bother * creating it... */ - if ((!ieee->hard_start_xmit && !(ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE))|| + if ((!ieee->hard_start_xmit && !(ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)) || ((!ieee->softmac_data_hard_start_xmit && (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)))) { printk(KERN_WARNING "%s: No xmit handler.\n", ieee->dev->name); @@ -631,7 +594,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) /* Save source and destination addresses */ memcpy(&dest, skb->data, ETH_ALEN); - memcpy(&src, skb->data+ETH_ALEN, ETH_ALEN); + memcpy(&src, skb->data + ETH_ALEN, ETH_ALEN); /* Advance the SKB to the start of the payload */ skb_pull(skb, sizeof(struct ethhdr)); @@ -646,7 +609,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) fc = IEEE80211_FTYPE_DATA; //if(ieee->current_network.QoS_Enable) - if(qos_actived) + if (qos_actived) fc |= IEEE80211_STYPE_QOS_DATA; else fc |= IEEE80211_STYPE_DATA; @@ -740,7 +703,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) for (i = 0; i < nr_frags; i++) { skb_frag = txb->fragments[i]; tcb_desc = (struct cb_desc *)(skb_frag->cb + MAX_DEV_ADDR_SIZE); - if(qos_actived){ + if (qos_actived) { skb_frag->priority = skb->priority;//UP2AC(skb->priority); tcb_desc->queue_index = UP2AC(skb->priority); } else { @@ -749,15 +712,13 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) } skb_reserve(skb_frag, ieee->tx_headroom); - if (encrypt){ + if (encrypt) { if (ieee->hwsec_active) tcb_desc->bHwSec = 1; else tcb_desc->bHwSec = 0; skb_reserve(skb_frag, crypt->ops->extra_prefix_len); - } - else - { + } else { tcb_desc->bHwSec = 0; } frag_hdr = skb_put_data(skb_frag, &header, hdr_len); @@ -775,12 +736,11 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) bytes = bytes_last_frag; } //if(ieee->current_network.QoS_Enable) - if(qos_actived) - { + if (qos_actived) { // add 1 only indicate to corresponding seq number control 2006/7/12 - frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[UP2AC(skb->priority)+1]<<4 | i); + frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[UP2AC(skb->priority) + 1] << 4 | i); } else { - frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4 | i); + frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4 | i); } /* Put a SNAP header on the first fragment */ @@ -806,17 +766,16 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) skb_put(skb_frag, 4); } - if(qos_actived) - { - if (ieee->seq_ctrl[UP2AC(skb->priority) + 1] == 0xFFF) - ieee->seq_ctrl[UP2AC(skb->priority) + 1] = 0; - else - ieee->seq_ctrl[UP2AC(skb->priority) + 1]++; + if (qos_actived) { + if (ieee->seq_ctrl[UP2AC(skb->priority) + 1] == 0xFFF) + ieee->seq_ctrl[UP2AC(skb->priority) + 1] = 0; + else + ieee->seq_ctrl[UP2AC(skb->priority) + 1]++; } else { - if (ieee->seq_ctrl[0] == 0xFFF) - ieee->seq_ctrl[0] = 0; - else - ieee->seq_ctrl[0]++; + if (ieee->seq_ctrl[0] == 0xFFF) + ieee->seq_ctrl[0] = 0; + else + ieee->seq_ctrl[0]++; } } else { if (unlikely(skb->len < sizeof(struct rtl_80211_hdr_3addr))) { @@ -826,7 +785,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) } txb = ieee80211_alloc_txb(1, skb->len, GFP_ATOMIC); - if(!txb){ + if (!txb) { printk(KERN_WARNING "%s: Could not allocate TXB\n", ieee->dev->name); goto failed; @@ -839,8 +798,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) success: //WB add to fill data tcb_desc here. only first fragment is considered, need to change, and you may remove to other place. - if (txb) - { + if (txb) { struct cb_desc *tcb_desc = (struct cb_desc *)(txb->fragments[0]->cb + MAX_DEV_ADDR_SIZE); tcb_desc->bTxEnableFwCalcDur = 1; if (is_multicast_ether_addr(header.addr1)) @@ -862,9 +820,9 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) spin_unlock_irqrestore(&ieee->lock, flags); dev_kfree_skb_any(skb); if (txb) { - if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE){ + if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE) { ieee80211_softmac_xmit(txb, ieee); - }else{ + } else { if ((*ieee->hard_start_xmit)(txb, dev) == 0) { stats->tx_packets++; stats->tx_bytes += __le16_to_cpu(txb->payload_size); diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c index be08cd1d37a7..9dd5c04181ea 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c @@ -70,10 +70,10 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee, } /* Add the protocol name */ iwe.cmd = SIOCGIWNAME; - for(i=0; i<ARRAY_SIZE(ieee80211_modes); i++) { + for (i = 0; i < ARRAY_SIZE(ieee80211_modes); i++) { if (network->mode & BIT(i)) { - sprintf(pname,ieee80211_modes[i].mode_string,ieee80211_modes[i].mode_size); - pname +=ieee80211_modes[i].mode_size; + sprintf(pname, ieee80211_modes[i].mode_string, ieee80211_modes[i].mode_size); + pname += ieee80211_modes[i].mode_size; } } *pname = '\0'; @@ -130,8 +130,7 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee, max_rate = rate; } - if (network->mode >= IEEE_N_24G)//add N rate here; - { + if (network->mode >= IEEE_N_24G) /* add N rate here */ { struct ht_capability_ele *ht_cap = NULL; bool is40M = false, isShortGI = false; u8 max_mcs = 0; @@ -139,13 +138,13 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee, ht_cap = (struct ht_capability_ele *)&network->bssht.bdHTCapBuf[4]; else ht_cap = (struct ht_capability_ele *)&network->bssht.bdHTCapBuf[0]; - is40M = (ht_cap->ChlWidth)?1:0; - isShortGI = (ht_cap->ChlWidth)? - ((ht_cap->ShortGI40Mhz)?1:0): - ((ht_cap->ShortGI20Mhz)?1:0); + is40M = (ht_cap->ChlWidth) ? 1 : 0; + isShortGI = (ht_cap->ChlWidth) ? + ((ht_cap->ShortGI40Mhz) ? 1 : 0) : + ((ht_cap->ShortGI20Mhz) ? 1 : 0); max_mcs = HTGetHighestMCSRate(ieee, ht_cap->MCS, MCS_FILTER_ALL); - rate = MCS_DATA_RATE[is40M][isShortGI][max_mcs&0x7f]; + rate = MCS_DATA_RATE[is40M][isShortGI][max_mcs & 0x7f]; if (rate > max_rate) max_rate = rate; } @@ -178,7 +177,7 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee, iwe.u.data.length = p - custom; if (iwe.u.data.length) - start = iwe_stream_add_point(info, start, stop, &iwe, custom); + start = iwe_stream_add_point(info, start, stop, &iwe, custom); if (ieee->wpa_enabled && network->wpa_ie_len) { char buf[MAX_WPA_IE_LEN * 2 + 30]; @@ -219,7 +218,7 @@ static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee, " Last beacon: %lums ago", (jiffies - network->last_scanned) / (HZ / 100)); iwe.u.data.length = p - custom; if (iwe.u.data.length) - start = iwe_stream_add_point(info, start, stop, &iwe, custom); + start = iwe_stream_add_point(info, start, stop, &iwe, custom); return start; } @@ -243,7 +242,7 @@ int ieee80211_wx_get_scan(struct ieee80211_device *ieee, list_for_each_entry(network, &ieee->network_list, list) { i++; - if((stop-ev)<200) { + if ((stop - ev) < 200) { err = -E2BIG; break; } @@ -454,7 +453,7 @@ int ieee80211_wx_get_encode(struct ieee80211_device *ieee, IEEE80211_DEBUG_WX("GET_ENCODE\n"); - if(ieee->iw_mode == IW_MODE_MONITOR) + if (ieee->iw_mode == IW_MODE_MONITOR) return -1; key = erq->flags & IW_ENCODE_INDEX; @@ -571,7 +570,7 @@ int ieee80211_wx_set_encode_ext(struct ieee80211_device *ieee, ret = -EINVAL; goto done; } - printk("alg name:%s\n",alg); + printk("alg name:%s\n", alg); ops = try_then_request_module(ieee80211_get_crypto_ops(alg), module); if (!ops) { @@ -688,7 +687,7 @@ int ieee80211_wx_get_encode_ext(struct ieee80211_device *ieee, ext->key_len = 0; encoding->flags |= IW_ENCODE_DISABLED; } else { - if (strcmp(crypt->ops->name, "WEP") == 0 ) + if (strcmp(crypt->ops->name, "WEP") == 0) ext->alg = IW_ENCODE_ALG_WEP; else if (strcmp(crypt->ops->name, "TKIP")) ext->alg = IW_ENCODE_ALG_TKIP; @@ -712,7 +711,7 @@ int ieee80211_wx_set_mlme(struct ieee80211_device *ieee, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { - struct iw_mlme *mlme = (struct iw_mlme *) extra; + struct iw_mlme *mlme = (struct iw_mlme *)extra; switch (mlme->cmd) { case IW_MLME_DEAUTH: case IW_MLME_DISASSOC: @@ -765,7 +764,7 @@ int ieee80211_wx_set_auth(struct ieee80211_device *ieee, break; case IW_AUTH_WPA_ENABLED: - ieee->wpa_enabled = (data->value)?1:0; + ieee->wpa_enabled = (data->value) ? 1 : 0; break; case IW_AUTH_RX_UNENCRYPTED_EAPOL: @@ -785,14 +784,14 @@ int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len) { u8 *buf; - if (len>MAX_WPA_IE_LEN || (len && !ie)) { - // printk("return error out, len:%d\n", len); - return -EINVAL; + if (len > MAX_WPA_IE_LEN || (len && !ie)) { + //printk("return error out, len:%d\n", len); + return -EINVAL; } if (len) { - if (len != ie[1]+2) { + if (len != ie[1] + 2) { printk("len:%zu, ie:%d\n", len, ie[1]); return -EINVAL; } diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c index 53869b3c985c..379a2ccf4d9f 100644 --- a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c +++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c @@ -162,7 +162,7 @@ static struct sk_buff *ieee80211_ADDBA(struct ieee80211_device *ieee, u8 *Dst, s tag += 2; } - IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_BA, skb->data, skb->len); + IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_BA, skb->data, skb->len); return skb; //return NULL; } @@ -229,7 +229,7 @@ static struct sk_buff *ieee80211_DELBA( put_unaligned_le16(ReasonCode, tag); tag += 2; - IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_BA, skb->data, skb->len); + IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_BA, skb->data, skb->len); if (net_ratelimit()) IEEE80211_DEBUG(IEEE80211_DL_TRACE | IEEE80211_DL_BA, "<=====%s()\n", __func__); @@ -331,9 +331,9 @@ int ieee80211_rx_ADDBAReq(struct ieee80211_device *ieee, struct sk_buff *skb) return -1; } - IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_BA, skb->data, skb->len); + IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_BA, skb->data, skb->len); - req = (struct rtl_80211_hdr_3addr *) skb->data; + req = (struct rtl_80211_hdr_3addr *)skb->data; tag = (u8 *)req; dst = &req->addr2[0]; tag += sizeof(struct rtl_80211_hdr_3addr); @@ -556,7 +556,7 @@ int ieee80211_rx_DELBA(struct ieee80211_device *ieee, struct sk_buff *skb) return -1; } - IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_BA, skb->data, skb->len); + IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_BA, skb->data, skb->len); delba = (struct rtl_80211_hdr_3addr *)skb->data; dst = &delba->addr2[0]; pDelBaParamSet = (union delba_param_set *)&delba->payload[2]; @@ -643,7 +643,7 @@ TsInitDelBA(struct ieee80211_device *ieee, struct ts_common_info *pTsCommonInfo, ieee80211_send_DELBA( ieee, pTsCommonInfo->addr, - (pTxTs->tx_admitted_ba_record.valid)?(&pTxTs->tx_admitted_ba_record):(&pTxTs->tx_pending_ba_record), + (pTxTs->tx_admitted_ba_record.valid) ? (&pTxTs->tx_admitted_ba_record) : (&pTxTs->tx_pending_ba_record), TxRxSelect, DELBA_REASON_END_BA); } else if (TxRxSelect == RX_DIR) { diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h b/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h index b7769bca9740..79346a00af09 100644 --- a/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h +++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h @@ -253,10 +253,10 @@ extern u8 MCS_FILTER_1SS[16]; /* 2007/07/12 MH We only define legacy and HT wireless mode now. */ #define LEGACY_WIRELESS_MODE IEEE_MODE_MASK -#define CURRENT_RATE(WirelessMode, LegacyRate, HTRate) \ - ((WirelessMode & (LEGACY_WIRELESS_MODE)) != 0) ?\ - (LegacyRate) :\ - (PICK_RATE(LegacyRate, HTRate)) +#define CURRENT_RATE(WirelessMode, LegacyRate, HTRate) \ + ((WirelessMode & (LEGACY_WIRELESS_MODE)) != 0) ? \ + (LegacyRate) : \ + (PICK_RATE(LegacyRate, HTRate)) // MCS Bw 40 {1~7, 12~15,32} #define RATE_ADPT_1SS_MASK 0xFF @@ -270,11 +270,10 @@ typedef enum _HT_AGGRE_SIZE { HT_AGG_SIZE_16K = 1, HT_AGG_SIZE_32K = 2, HT_AGG_SIZE_64K = 3, -}HT_AGGRE_SIZE_E, *PHT_AGGRE_SIZE_E; +} HT_AGGRE_SIZE_E, *PHT_AGGRE_SIZE_E; /* Indicate different AP vendor for IOT issue */ -typedef enum _HT_IOT_PEER -{ +typedef enum _HT_IOT_PEER { HT_IOT_PEER_UNKNOWN = 0, HT_IOT_PEER_REALTEK = 1, HT_IOT_PEER_BROADCOM = 2, @@ -282,7 +281,7 @@ typedef enum _HT_IOT_PEER HT_IOT_PEER_ATHEROS = 4, HT_IOT_PEER_CISCO = 5, HT_IOT_PEER_MAX = 6 -}HT_IOT_PEER_E, *PHTIOT_PEER_E; +} HT_IOT_PEER_E, *PHTIOT_PEER_E; /* * IOT Action for different AP @@ -298,6 +297,6 @@ typedef enum _HT_IOT_ACTION { HT_IOT_ACT_CDD_FSYNC = 0x00000080, HT_IOT_ACT_PURE_N_MODE = 0x00000100, HT_IOT_ACT_FORCED_CTS2SELF = 0x00000200, -}HT_IOT_ACTION_E, *PHT_IOT_ACTION_E; +} HT_IOT_ACTION_E, *PHT_IOT_ACTION_E; #endif //_RTL819XU_HTTYPE_H_ diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c index c73a8058cf87..dba3f2db9f48 100644 --- a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c +++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c @@ -93,10 +93,6 @@ void HTUpdateDefaultSetting(struct ieee80211_device *ieee) ieee->bTxDisableRateFallBack = 0; ieee->bTxUseDriverAssingedRate = 0; -#ifdef TO_DO_LIST - // 8190 only. Assign duration operation mode to firmware - pMgntInfo->bTxEnableFwCalcDur = (BOOLEAN)pNdisCommon->bRegTxEnableFwCalcDur; -#endif /* * 8190 only, Realtek proprietary aggregation mode * Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c index 59d179ae7ad2..5cee1031a27c 100644 --- a/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c +++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c @@ -105,7 +105,7 @@ static void ResetTsCommonInfo(struct ts_common_info *pTsCommonInfo) { eth_zero_addr(pTsCommonInfo->addr); memset(&pTsCommonInfo->t_spec, 0, sizeof(struct tspec_body)); - memset(&pTsCommonInfo->t_class, 0, sizeof(union qos_tclas)*TCLAS_NUM); + memset(&pTsCommonInfo->t_class, 0, sizeof(union qos_tclas) * TCLAS_NUM); pTsCommonInfo->t_clas_proc = 0; pTsCommonInfo->t_clas_num = 0; } @@ -180,14 +180,12 @@ void TSInitialize(struct ieee80211_device *ieee) } // Initialize unused Rx Reorder List. INIT_LIST_HEAD(&ieee->RxReorder_Unused_List); -//#ifdef TO_DO_LIST for (count = 0; count < REORDER_ENTRY_NUM; count++) { list_add_tail(&pRxReorderEntry->List, &ieee->RxReorder_Unused_List); - if (count == (REORDER_ENTRY_NUM-1)) + if (count == (REORDER_ENTRY_NUM - 1)) break; - pRxReorderEntry = &ieee->RxReorderEntry[count+1]; + pRxReorderEntry = &ieee->RxReorderEntry[count + 1]; } -//#endif } static void AdmitTS(struct ieee80211_device *ieee, @@ -259,7 +257,7 @@ static struct ts_common_info *SearchAdmitTRStream(struct ieee80211_device *ieee, } if (&pRet->list != psearch_list) - return pRet ; + return pRet; else return NULL; } @@ -367,8 +365,8 @@ bool GetTs( (&ieee->Rx_TS_Admit_List); enum direction_value Dir = (ieee->iw_mode == IW_MODE_MASTER) ? - ((TxRxSelect == TX_DIR)?DIR_DOWN:DIR_UP) : - ((TxRxSelect == TX_DIR)?DIR_UP:DIR_DOWN); + ((TxRxSelect == TX_DIR) ? DIR_DOWN : DIR_UP) : + ((TxRxSelect == TX_DIR) ? DIR_UP : DIR_DOWN); IEEE80211_DEBUG(IEEE80211_DL_TS, "to add Ts\n"); if (!list_empty(pUnusedList)) { (*ppTS) = list_entry(pUnusedList->next, struct ts_common_info, list); @@ -417,7 +415,6 @@ static void RemoveTsEntry(struct ieee80211_device *ieee, struct ts_common_info * TsInitDelBA(ieee, pTs, TxRxSelect); if (TxRxSelect == RX_DIR) { -//#ifdef TO_DO_LIST struct rx_reorder_entry *pRxReorderEntry; struct rx_ts_record *pRxTS = (struct rx_ts_record *)pTs; if (timer_pending(&pRxTS->rx_pkt_pending_timer)) @@ -445,7 +442,6 @@ static void RemoveTsEntry(struct ieee80211_device *ieee, struct ts_common_info * spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags); } -//#endif } else { struct tx_ts_record *pTxTS = (struct tx_ts_record *)pTs; del_timer_sync(&pTxTS->ts_add_ba_timer); @@ -530,7 +526,7 @@ void TsStartAddBaProcess(struct ieee80211_device *ieee, struct tx_ts_record *pTx jiffies + msecs_to_jiffies(TS_ADDBA_DELAY)); } else { IEEE80211_DEBUG(IEEE80211_DL_BA, "%s: Immediately Start ADDBA now!!\n", __func__); - mod_timer(&pTxTS->ts_add_ba_timer, jiffies+10); //set 10 ticks + mod_timer(&pTxTS->ts_add_ba_timer, jiffies + 10); //set 10 ticks } } else { IEEE80211_DEBUG(IEEE80211_DL_ERR, "%s()==>BA timer is already added\n", __func__); diff --git a/drivers/staging/rtl8192u/r8180_93cx6.c b/drivers/staging/rtl8192u/r8180_93cx6.c index de83daa0c9ed..2527cea60e3e 100644 --- a/drivers/staging/rtl8192u/r8180_93cx6.c +++ b/drivers/staging/rtl8192u/r8180_93cx6.c @@ -39,7 +39,6 @@ static void eprom_cs(struct net_device *dev, short bit) udelay(EPROM_DELAY); } - static void eprom_ck_cycle(struct net_device *dev) { u8 cmdreg; @@ -58,7 +57,6 @@ static void eprom_ck_cycle(struct net_device *dev) udelay(EPROM_DELAY); } - static void eprom_w(struct net_device *dev, short bit) { u8 cmdreg; @@ -76,7 +74,6 @@ static void eprom_w(struct net_device *dev, short bit) udelay(EPROM_DELAY); } - static short eprom_r(struct net_device *dev) { u8 bit; @@ -94,7 +91,6 @@ static short eprom_r(struct net_device *dev) return 0; } - static void eprom_send_bits_string(struct net_device *dev, short b[], int len) { int i; @@ -105,7 +101,6 @@ static void eprom_send_bits_string(struct net_device *dev, short b[], int len) } } - int eprom_read(struct net_device *dev, u32 addr) { struct r8192_priv *priv = ieee80211_priv(dev); @@ -119,7 +114,7 @@ int eprom_read(struct net_device *dev, u32 addr) ret = 0; /* enable EPROM programming */ write_nic_byte_E(dev, EPROM_CMD, - (EPROM_CMD_PROGRAM<<EPROM_CMD_OPERATING_MODE_SHIFT)); + (EPROM_CMD_PROGRAM << EPROM_CMD_OPERATING_MODE_SHIFT)); force_pci_posting(dev); udelay(EPROM_DELAY); @@ -162,7 +157,7 @@ int eprom_read(struct net_device *dev, u32 addr) if (err < 0) return err; - ret |= err<<(15-i); + ret |= err << (15 - i); } eprom_cs(dev, 0); @@ -170,6 +165,6 @@ int eprom_read(struct net_device *dev, u32 addr) /* disable EPROM programming */ write_nic_byte_E(dev, EPROM_CMD, - (EPROM_CMD_NORMAL<<EPROM_CMD_OPERATING_MODE_SHIFT)); + (EPROM_CMD_NORMAL << EPROM_CMD_OPERATING_MODE_SHIFT)); return ret; } diff --git a/drivers/staging/rtl8192u/r8190_rtl8256.c b/drivers/staging/rtl8192u/r8190_rtl8256.c index 0bedf88525cd..b169460b9f26 100644 --- a/drivers/staging/rtl8192u/r8190_rtl8256.c +++ b/drivers/staging/rtl8192u/r8190_rtl8256.c @@ -42,9 +42,9 @@ void phy_set_rf8256_bandwidth(struct net_device *dev, enum ht_channel_width Band switch (Bandwidth) { case HT_CHANNEL_WIDTH_20: - if (priv->card_8192_version == VERSION_819XU_A - || priv->card_8192_version - == VERSION_819XU_B) { /* 8256 D-cut, E-cut, xiong: consider it later! */ + if (priv->card_8192_version == VERSION_819XU_A || + priv->card_8192_version == + VERSION_819XU_B) { /* 8256 D-cut, E-cut, xiong: consider it later! */ rtl8192_phy_SetRFReg(dev, (enum rf90_radio_path_e)eRFPath, 0x0b, bMask12Bits, 0x100); /* phy para:1ba */ @@ -79,10 +79,10 @@ void phy_set_rf8256_bandwidth(struct net_device *dev, enum ht_channel_width Band default: RT_TRACE(COMP_ERR, "phy_set_rf8256_bandwidth(): unknown Bandwidth: %#X\n", Bandwidth); break; - } } } + /*-------------------------------------------------------------------------- * Overview: Interface to config 8256 * Input: struct net_device* dev @@ -101,6 +101,7 @@ void phy_rf8256_config(struct net_device *dev) /* Config BB and RF */ phy_rf8256_config_para_file(dev); } + /*-------------------------------------------------------------------------- * Overview: Interface to config 8256 * Input: struct net_device* dev @@ -137,12 +138,12 @@ static void phy_rf8256_config_para_file(struct net_device *dev) break; case RF90_PATH_B: case RF90_PATH_D: - u4RegValue = rtl8192_QueryBBReg(dev, pPhyReg->rfintfs, bRFSI_RFENV<<16); + u4RegValue = rtl8192_QueryBBReg(dev, pPhyReg->rfintfs, bRFSI_RFENV << 16); break; } /*----Set RF_ENV enable----*/ - rtl8192_setBBreg(dev, pPhyReg->rfintfe, bRFSI_RFENV<<16, 0x1); + rtl8192_setBBreg(dev, pPhyReg->rfintfe, bRFSI_RFENV << 16, 0x1); /*----Set RF_ENV output high----*/ rtl8192_setBBreg(dev, pPhyReg->rfintfo, bRFSI_RFENV, 0x1); @@ -151,7 +152,7 @@ static void phy_rf8256_config_para_file(struct net_device *dev) rtl8192_setBBreg(dev, pPhyReg->rfHSSIPara2, b3WireAddressLength, 0x0); /* Set 0 to 4 bits for Z-serial and set 1 to 6 bits for 8258 */ rtl8192_setBBreg(dev, pPhyReg->rfHSSIPara2, b3WireDataLength, 0x0); /* Set 0 to 12 bits for Z-serial and 8258, and set 1 to 14 bits for ??? */ - rtl8192_phy_SetRFReg(dev, (enum rf90_radio_path_e) eRFPath, 0x0, bMask12Bits, 0xbf); + rtl8192_phy_SetRFReg(dev, (enum rf90_radio_path_e)eRFPath, 0x0, bMask12Bits, 0xbf); /* Check RF block (for FPGA platform only)---- * TODO: this function should be removed on ASIC , Emily 2007.2.2 @@ -207,7 +208,7 @@ static void phy_rf8256_config_para_file(struct net_device *dev) break; case RF90_PATH_B: case RF90_PATH_D: - rtl8192_setBBreg(dev, pPhyReg->rfintfs, bRFSI_RFENV<<16, u4RegValue); + rtl8192_setBBreg(dev, pPhyReg->rfintfs, bRFSI_RFENV << 16, u4RegValue); break; } @@ -215,7 +216,6 @@ static void phy_rf8256_config_para_file(struct net_device *dev) RT_TRACE(COMP_ERR, "phy_rf8256_config_para_file():Radio[%d] Fail!!", eRFPath); goto phy_RF8256_Config_ParaFile_Fail; } - } RT_TRACE(COMP_PHY, "PHY Initialization Success\n"); @@ -225,11 +225,11 @@ phy_RF8256_Config_ParaFile_Fail: RT_TRACE(COMP_ERR, "PHY Initialization failed\n"); } - void phy_set_rf8256_cck_tx_power(struct net_device *dev, u8 powerlevel) { u32 TxAGC = 0; struct r8192_priv *priv = ieee80211_priv(dev); + TxAGC = powerlevel; if (priv->bDynamicTxLowPower) { @@ -244,7 +244,6 @@ void phy_set_rf8256_cck_tx_power(struct net_device *dev, u8 powerlevel) rtl8192_setBBreg(dev, rTxAGC_CCK_Mcs32, bTxAGCRateCCK, TxAGC); } - void phy_set_rf8256_ofdm_tx_power(struct net_device *dev, u8 powerlevel) { struct r8192_priv *priv = ieee80211_priv(dev); @@ -255,16 +254,16 @@ void phy_set_rf8256_ofdm_tx_power(struct net_device *dev, u8 powerlevel) u8 byte0, byte1, byte2, byte3; powerBase0 = powerlevel + priv->TxPowerDiff; /* OFDM rates */ - powerBase0 = (powerBase0<<24) | (powerBase0<<16) | (powerBase0<<8) | powerBase0; + powerBase0 = (powerBase0 << 24) | (powerBase0 << 16) | (powerBase0 << 8) | powerBase0; powerBase1 = powerlevel; /* MCS rates */ - powerBase1 = (powerBase1<<24) | (powerBase1<<16) | (powerBase1<<8) | powerBase1; + powerBase1 = (powerBase1 << 24) | (powerBase1 << 16) | (powerBase1 << 8) | powerBase1; for (index = 0; index < 6; index++) { - writeVal = priv->MCSTxPowerLevelOriginalOffset[index] + ((index < 2)?powerBase0:powerBase1); + writeVal = priv->MCSTxPowerLevelOriginalOffset[index] + ((index < 2) ? powerBase0 : powerBase1); byte0 = (u8)(writeVal & 0x7f); - byte1 = (u8)((writeVal & 0x7f00)>>8); - byte2 = (u8)((writeVal & 0x7f0000)>>16); - byte3 = (u8)((writeVal & 0x7f000000)>>24); + byte1 = (u8)((writeVal & 0x7f00) >> 8); + byte2 = (u8)((writeVal & 0x7f0000) >> 16); + byte3 = (u8)((writeVal & 0x7f000000) >> 24); if (byte0 > 0x24) /* Max power index = 0x24 */ @@ -278,7 +277,7 @@ void phy_set_rf8256_ofdm_tx_power(struct net_device *dev, u8 powerlevel) /* for tx power track */ if (index == 3) { - writeVal_tmp = (byte3<<24) | (byte2<<16) | (byte1<<8) | byte0; + writeVal_tmp = (byte3 << 24) | (byte2 << 16) | (byte1 << 8) | byte0; priv->Pwr_Track = writeVal_tmp; } @@ -288,10 +287,9 @@ void phy_set_rf8256_ofdm_tx_power(struct net_device *dev, u8 powerlevel) */ writeVal = 0x03030303; } else { - writeVal = (byte3<<24) | (byte2<<16) | (byte1<<8) | byte0; + writeVal = (byte3 << 24) | (byte2 << 16) | (byte1 << 8) | byte0; } rtl8192_setBBreg(dev, RegOffset[index], 0x7f7f7f7f, writeVal); } return; - } diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 569d02240bf5..2821411878ce 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -2076,14 +2076,6 @@ static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode) wireless_mode = WIRELESS_MODE_B; } } -#ifdef TO_DO_LIST - /* TODO: this function doesn't work well at this time, - * we should wait for FPGA - */ - ActUpdateChannelAccessSetting( - pAdapter, pHalData->CurrentWirelessMode, - &pAdapter->MgntInfo.Info8185.ChannelAccessSetting); -#endif priv->ieee80211->mode = wireless_mode; if (wireless_mode == WIRELESS_MODE_N_24G || @@ -2159,12 +2151,6 @@ static int rtl8192_init_priv_variable(struct net_device *dev) priv->ieee80211->InitialGainHandler = InitialGain819xUsb; priv->card_type = USB; -#ifdef TO_DO_LIST - if (Adapter->bInHctTest) { - pHalData->ShortRetryLimit = 7; - pHalData->LongRetryLimit = 7; - } -#endif priv->ShortRetryLimit = 0x30; priv->LongRetryLimit = 0x30; priv->EarlyRxThreshold = 7; @@ -2180,34 +2166,6 @@ static int rtl8192_init_priv_variable(struct net_device *dev) * TRUE: SW provides them */ (false ? TCR_SAT : 0); -#ifdef TO_DO_LIST - if (Adapter->bInHctTest) - pHalData->ReceiveConfig = - pHalData->CSMethod | - /* accept management/data */ - RCR_AMF | RCR_ADF | - /* accept control frame for SW - * AP needs PS-poll - */ - RCR_ACF | - /* accept BC/MC/UC */ - RCR_AB | RCR_AM | RCR_APM | - /* accept ICV/CRC error - * packet - */ - RCR_AICV | RCR_ACRC32 | - /* Max DMA Burst Size per Tx - * DMA Burst, 7: unlimited. - */ - ((u32)7 << RCR_MXDMA_OFFSET) | - /* Rx FIFO Threshold, - * 7: No Rx threshold. - */ - (pHalData->EarlyRxThreshold << RCR_FIFO_OFFSET) | - (pHalData->EarlyRxThreshold == 7 ? RCR_OnlyErlPkt : 0); - else - -#endif priv->ReceiveConfig = /* accept management/data */ RCR_AMF | RCR_ADF | @@ -2665,19 +2623,10 @@ static void rtl8192_hwconfig(struct net_device *dev) regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; break; case WIRELESS_MODE_AUTO: -#ifdef TO_DO_LIST - if (Adapter->bInHctTest) { - regBwOpMode = BW_OPMODE_20MHZ; - regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; - regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; - } else -#endif - { - regBwOpMode = BW_OPMODE_20MHZ; - regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | - RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; - regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; - } + regBwOpMode = BW_OPMODE_20MHZ; + regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | + RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; + regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; break; case WIRELESS_MODE_N_24G: /* It support CCK rate by default. CCK rate will be filtered @@ -2848,48 +2797,6 @@ static bool rtl8192_adapter_start(struct net_device *dev) } RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__); -#ifdef TO_DO_LIST - if (Adapter->ResetProgress == RESET_TYPE_NORESET) { - if (pMgntInfo->RegRfOff) { /* User disable RF via registry. */ - RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD, - ("InitializeAdapter819xUsb(): Turn off RF for RegRfOff ----------\n")); - MgntActSet_RF_State(Adapter, eRfOff, RF_CHANGE_BY_SW); - /* Those actions will be discard in MgntActSet_RF_State - * because of the same state - */ - for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++) - PHY_SetRFReg(Adapter, - (enum rf90_radio_path_e)eRFPath, - 0x4, 0xC00, 0x0); - } else if (pMgntInfo->RfOffReason > RF_CHANGE_BY_PS) { - /* H/W or S/W RF OFF before sleep. */ - RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD, - ("InitializeAdapter819xUsb(): Turn off RF for RfOffReason(%d) ----------\n", - pMgntInfo->RfOffReason)); - MgntActSet_RF_State(Adapter, - eRfOff, - pMgntInfo->RfOffReason); - } else { - pHalData->eRFPowerState = eRfOn; - pMgntInfo->RfOffReason = 0; - RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD, - ("InitializeAdapter819xUsb(): RF is on ----------\n")); - } - } else { - if (pHalData->eRFPowerState == eRfOff) { - MgntActSet_RF_State(Adapter, - eRfOff, - pMgntInfo->RfOffReason); - /* Those actions will be discard in MgntActSet_RF_State - * because of the same state - */ - for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++) - PHY_SetRFReg(Adapter, - (enum rf90_radio_path_e)eRFPath, - 0x4, 0xC00, 0x0); - } - } -#endif /* config RF. */ if (priv->ResetProgress == RESET_TYPE_NORESET) { rtl8192_phy_RFConfig(dev); diff --git a/drivers/staging/rtl8192u/r819xU_firmware.c b/drivers/staging/rtl8192u/r819xU_firmware.c index 153d4ee0ec07..dd81d210bd49 100644 --- a/drivers/staging/rtl8192u/r819xU_firmware.c +++ b/drivers/staging/rtl8192u/r819xU_firmware.c @@ -231,7 +231,7 @@ bool init_firmware(struct net_device *dev) rst_opt = OPT_FIRMWARE_RESET; starting_state = FW_INIT_STEP2_DATA; } else { - RT_TRACE(COMP_FIRMWARE, "PlatformInitFirmware: undefined firmware state\n"); + RT_TRACE(COMP_FIRMWARE, "PlatformInitFirmware: undefined firmware state\n"); } /* diff --git a/drivers/staging/rtl8192u/r819xU_phy.c b/drivers/staging/rtl8192u/r819xU_phy.c index 5f04afe53d69..c04d8eca0cfb 100644 --- a/drivers/staging/rtl8192u/r819xU_phy.c +++ b/drivers/staging/rtl8192u/r819xU_phy.c @@ -516,16 +516,6 @@ static void rtl8192_phyConfigBB(struct net_device *dev, { u32 i; -#ifdef TO_DO_LIST - u32 *rtl8192PhyRegArrayTable = NULL, *rtl8192AgcTabArrayTable = NULL; - - if (Adapter->bInHctTest) { - PHY_REGArrayLen = PHY_REGArrayLengthDTM; - AGCTAB_ArrayLen = AGCTAB_ArrayLengthDTM; - Rtl8190PHY_REGArray_Table = Rtl819XPHY_REGArrayDTM; - Rtl8190AGCTAB_Array_Table = Rtl819XAGCTAB_ArrayDTM; - } -#endif if (ConfigType == BASEBAND_CONFIG_PHY_REG) { for (i = 0; i < PHY_REG_1T2RArrayLength; i += 2) { rtl8192_setBBreg(dev, Rtl8192UsbPHY_REG_1T2RArray[i], @@ -1059,10 +1049,6 @@ static void rtl8192_SetTxPowerLevel(struct net_device *dev, u8 channel) switch (priv->rf_chip) { case RF_8225: -#ifdef TO_DO_LIST - PHY_SetRF8225CckTxPower(Adapter, powerlevel); - PHY_SetRF8225OfdmTxPower(Adapter, powerlevelOFDM24G); -#endif break; case RF_8256: @@ -1160,48 +1146,6 @@ bool rtl8192_SetRFPowerState(struct net_device *dev, RT_TRACE(COMP_ERR, "Not support rf_chip(%x)\n", priv->rf_chip); break; } -#ifdef TO_DO_LIST - if (bResult) { - /* Update current RF state variable. */ - pHalData->eRFPowerState = eRFPowerState; - switch (pHalData->RFChipID) { - case RF_8256: - switch (pHalData->eRFPowerState) { - case eRfOff: - /* If Rf off reason is from IPS, - * LED should blink with no link - */ - if (pMgntInfo->RfOffReason == RF_CHANGE_BY_IPS) - Adapter->HalFunc.LedControlHandler(Adapter, LED_CTL_NO_LINK); - else - /* Turn off LED if RF is not ON. */ - Adapter->HalFunc.LedControlHandler(Adapter, LED_CTL_POWER_OFF); - break; - - case eRfOn: - /* Turn on RF we are still linked, which might - * happen when we quickly turn off and on HW RF. - */ - if (pMgntInfo->bMediaConnect) - Adapter->HalFunc.LedControlHandler(Adapter, LED_CTL_LINK); - else - /* Turn off LED if RF is not ON. */ - Adapter->HalFunc.LedControlHandler(Adapter, LED_CTL_NO_LINK); - break; - - default: - break; - } - break; - - default: - RT_TRACE(COMP_RF, DBG_LOUD, "%s(): Unknown RF type\n", - __func__); - break; - } - - } -#endif priv->SetRFPowerStateInProgress = false; return bResult; @@ -1628,9 +1572,6 @@ void rtl8192_SetBWModeWorkItem(struct net_device *dev) /* <3> Set RF related register */ switch (priv->rf_chip) { case RF_8225: -#ifdef TO_DO_LIST - PHY_SetRF8225Bandwidth(Adapter, pHalData->CurrentChannelBW); -#endif break; case RF_8256: diff --git a/drivers/staging/rtl8712/rtl871x_io.h b/drivers/staging/rtl8712/rtl871x_io.h index 28941423b7ed..c20dd5a6bbd1 100644 --- a/drivers/staging/rtl8712/rtl871x_io.h +++ b/drivers/staging/rtl8712/rtl871x_io.h @@ -11,8 +11,8 @@ * Larry Finger <Larry.Finger@lwfinger.net> * ******************************************************************************/ -#ifndef _IO_H_ -#define _IO_H_ +#ifndef _RTL871X_IO_H_ +#define _RTL871X_IO_H_ #include "osdep_service.h" #include "osdep_intf.h" @@ -234,5 +234,4 @@ void r8712_write_port(struct _adapter *adapter, u32 addr, u32 cnt, u8 *pmem); uint r8712_alloc_io_queue(struct _adapter *adapter); void r8712_free_io_queue(struct _adapter *adapter); -#endif /*_RTL8711_IO_H_*/ - +#endif /*_RTL871X_IO_H_*/ diff --git a/drivers/staging/rtl8712/rtl871x_rf.h b/drivers/staging/rtl8712/rtl871x_rf.h index cc54453cd424..7d98921a48fa 100644 --- a/drivers/staging/rtl8712/rtl871x_rf.h +++ b/drivers/staging/rtl8712/rtl871x_rf.h @@ -52,5 +52,4 @@ enum { RTL8712_RFC_2T2R = 0x22 }; -#endif /*_RTL8711_RF_H_*/ - +#endif /*__RTL871X_RF_H_*/ diff --git a/drivers/staging/rtl8712/wifi.h b/drivers/staging/rtl8712/wifi.h index 1a5b966a167e..be731f1a2209 100644 --- a/drivers/staging/rtl8712/wifi.h +++ b/drivers/staging/rtl8712/wifi.h @@ -300,7 +300,6 @@ static inline unsigned char *get_da(unsigned char *pframe) return da; } - static inline unsigned char *get_sa(unsigned char *pframe) { unsigned char *sa; @@ -346,8 +345,6 @@ static inline unsigned char *get_hdr_bssid(unsigned char *pframe) return sa; } - - /*----------------------------------------------------------------------------- * Below is for the security related definition *----------------------------------------------------------------------------- @@ -392,7 +389,6 @@ static inline unsigned char *get_hdr_bssid(unsigned char *pframe) #define _RESERVED47_ 47 - /* --------------------------------------------------------------------------- * Below is the fixed elements... * --------------------------------------------------------------------------- @@ -436,7 +432,6 @@ static inline unsigned char *get_hdr_bssid(unsigned char *pframe) #define _WMM_IE_Length_ 7 /* for WMM STA */ #define _WMM_Para_Element_Length_ 24 - /*----------------------------------------------------------------------------- * Below is the definition for 802.11n *------------------------------------------------------------------------------ @@ -456,7 +451,6 @@ static inline unsigned char *get_hdr_bssid(unsigned char *pframe) #define GetOrderBit(pbuf) (((*(__le16 *)(pbuf)) & \ le16_to_cpu(_ORDER_)) != 0) - /** * struct ieee80211_bar - HT Block Ack Request * @@ -476,7 +470,6 @@ struct ieee80211_bar { #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004 - /* * struct ieee80211_ht_cap - HT capabilities * @@ -552,7 +545,6 @@ struct ieee80211_ht_addt_info { */ #define IEEE80211_MIN_AMPDU_BUF 0x8 - /* Spatial Multiplexing Power Save Modes */ #define WLAN_HT_CAP_SM_PS_STATIC 0 #define WLAN_HT_CAP_SM_PS_DYNAMIC 1 diff --git a/drivers/staging/rtl8723bs/core/rtw_ap.c b/drivers/staging/rtl8723bs/core/rtw_ap.c index 02f5478845b4..6d18d23acdc0 100644 --- a/drivers/staging/rtl8723bs/core/rtw_ap.c +++ b/drivers/staging/rtl8723bs/core/rtw_ap.c @@ -13,7 +13,6 @@ extern unsigned char RTW_WPA_OUI[]; extern unsigned char WMM_OUI[]; extern unsigned char WPS_OUI[]; extern unsigned char P2P_OUI[]; -extern unsigned char WFD_OUI[]; void init_mlme_ap_info(struct adapter *padapter) { diff --git a/drivers/staging/rtl8723bs/core/rtw_pwrctrl.c b/drivers/staging/rtl8723bs/core/rtw_pwrctrl.c index 62b42e29e4fd..4075de07e0a9 100644 --- a/drivers/staging/rtl8723bs/core/rtw_pwrctrl.c +++ b/drivers/staging/rtl8723bs/core/rtw_pwrctrl.c @@ -821,12 +821,12 @@ static void pwr_rpwm_timeout_handler(struct timer_list *t) _set_workitem(&pwrpriv->rpwmtimeoutwi); } -static __inline void register_task_alive(struct pwrctrl_priv *pwrctrl, u32 tag) +static inline void register_task_alive(struct pwrctrl_priv *pwrctrl, u32 tag) { pwrctrl->alives |= tag; } -static __inline void unregister_task_alive(struct pwrctrl_priv *pwrctrl, u32 tag) +static inline void unregister_task_alive(struct pwrctrl_priv *pwrctrl, u32 tag) { pwrctrl->alives &= ~tag; } diff --git a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c index d78fbbc98fa2..ea3ea2a6b314 100644 --- a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c +++ b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c @@ -451,7 +451,7 @@ void set_channel_bwmode(struct adapter *padapter, unsigned char channel, unsigne mutex_unlock(&(adapter_to_dvobj(padapter)->setch_mutex)); } -__inline u8 *get_my_bssid(struct wlan_bssid_ex *pnetwork) +inline u8 *get_my_bssid(struct wlan_bssid_ex *pnetwork) { return pnetwork->MacAddress; } diff --git a/drivers/staging/rtl8723bs/hal/hal_btcoex.c b/drivers/staging/rtl8723bs/hal/hal_btcoex.c index 19486f0e0ead..6e4a1fcb8790 100644 --- a/drivers/staging/rtl8723bs/hal/hal_btcoex.c +++ b/drivers/staging/rtl8723bs/hal/hal_btcoex.c @@ -482,10 +482,8 @@ static u8 halbtcoutsrc_Get(void *pBtcContext, u8 getType, void *pOutBuf) *pU4Tmp = BTC_WIFI_BW_LEGACY; else if (pHalData->CurrentChannelBW == CHANNEL_WIDTH_20) *pU4Tmp = BTC_WIFI_BW_HT20; - else if (pHalData->CurrentChannelBW == CHANNEL_WIDTH_40) - *pU4Tmp = BTC_WIFI_BW_HT40; else - *pU4Tmp = BTC_WIFI_BW_HT40; /* todo */ + *pU4Tmp = BTC_WIFI_BW_HT40; break; case BTC_GET_U4_WIFI_TRAFFIC_DIRECTION: diff --git a/drivers/staging/rtl8723bs/include/drv_types.h b/drivers/staging/rtl8723bs/include/drv_types.h index 8c1ade44ed81..8d7fce1e39b7 100644 --- a/drivers/staging/rtl8723bs/include/drv_types.h +++ b/drivers/staging/rtl8723bs/include/drv_types.h @@ -478,7 +478,7 @@ struct sdio_data intf_data; #define dvobj_to_pwrctl(dvobj) (&(dvobj->pwrctl_priv)) #define pwrctl_to_dvobj(pwrctl) container_of(pwrctl, struct dvobj_priv, pwrctl_priv) -__inline static struct device *dvobj_to_dev(struct dvobj_priv *dvobj) +static inline struct device *dvobj_to_dev(struct dvobj_priv *dvobj) { /* todo: get interface type from dvobj and the return the dev accordingly */ #ifdef RTW_DVOBJ_CHIP_HW_TYPE @@ -634,14 +634,14 @@ struct adapter { /* define RTW_DISABLE_FUNC(padapter, func) (atomic_add(&adapter_to_dvobj(padapter)->disable_func, (func))) */ /* define RTW_ENABLE_FUNC(padapter, func) (atomic_sub(&adapter_to_dvobj(padapter)->disable_func, (func))) */ -__inline static void RTW_DISABLE_FUNC(struct adapter *padapter, int func_bit) +static inline void RTW_DISABLE_FUNC(struct adapter *padapter, int func_bit) { int df = atomic_read(&adapter_to_dvobj(padapter)->disable_func); df |= func_bit; atomic_set(&adapter_to_dvobj(padapter)->disable_func, df); } -__inline static void RTW_ENABLE_FUNC(struct adapter *padapter, int func_bit) +static inline void RTW_ENABLE_FUNC(struct adapter *padapter, int func_bit) { int df = atomic_read(&adapter_to_dvobj(padapter)->disable_func); df &= ~(func_bit); diff --git a/drivers/staging/rtl8723bs/include/osdep_service.h b/drivers/staging/rtl8723bs/include/osdep_service.h index d2616af95ffa..81a9c19ecc6a 100644 --- a/drivers/staging/rtl8723bs/include/osdep_service.h +++ b/drivers/staging/rtl8723bs/include/osdep_service.h @@ -110,12 +110,12 @@ int _rtw_netif_rx(_nic_hdl ndev, struct sk_buff *skb); extern void _rtw_init_queue(struct __queue *pqueue); -static __inline void thread_enter(char *name) +static inline void thread_enter(char *name) { allow_signal(SIGTERM); } -__inline static void flush_signals_thread(void) +static inline void flush_signals_thread(void) { if (signal_pending (current)) { @@ -125,7 +125,7 @@ __inline static void flush_signals_thread(void) #define rtw_warn_on(condition) WARN_ON(condition) -__inline static int rtw_bug_check(void *parg1, void *parg2, void *parg3, void *parg4) +static inline int rtw_bug_check(void *parg1, void *parg2, void *parg3, void *parg4) { int ret = true; @@ -136,7 +136,7 @@ __inline static int rtw_bug_check(void *parg1, void *parg2, void *parg3, void *p #define _RND(sz, r) ((((sz)+((r)-1))/(r))*(r)) #define RND4(x) (((x >> 2) + (((x & 3) == 0) ? 0: 1)) << 2) -__inline static u32 _RND4(u32 sz) +static inline u32 _RND4(u32 sz) { u32 val; @@ -147,7 +147,7 @@ __inline static u32 _RND4(u32 sz) } -__inline static u32 _RND8(u32 sz) +static inline u32 _RND8(u32 sz) { u32 val; diff --git a/drivers/staging/rtl8723bs/include/osdep_service_linux.h b/drivers/staging/rtl8723bs/include/osdep_service_linux.h index 2f1b51e614fb..c582ede1ac12 100644 --- a/drivers/staging/rtl8723bs/include/osdep_service_linux.h +++ b/drivers/staging/rtl8723bs/include/osdep_service_linux.h @@ -64,12 +64,12 @@ typedef struct work_struct _workitem; -__inline static struct list_head *get_next(struct list_head *list) +static inline struct list_head *get_next(struct list_head *list) { return list->next; } -__inline static struct list_head *get_list_head(struct __queue *queue) +static inline struct list_head *get_list_head(struct __queue *queue) { return (&(queue->queue)); } @@ -78,28 +78,28 @@ __inline static struct list_head *get_list_head(struct __queue *queue) #define LIST_CONTAINOR(ptr, type, member) \ container_of(ptr, type, member) -__inline static void _set_timer(_timer *ptimer, u32 delay_time) +static inline void _set_timer(_timer *ptimer, u32 delay_time) { mod_timer(ptimer , (jiffies+(delay_time*HZ/1000))); } -__inline static void _cancel_timer(_timer *ptimer, u8 *bcancelled) +static inline void _cancel_timer(_timer *ptimer, u8 *bcancelled) { del_timer_sync(ptimer); *bcancelled = true;/* true == 1; false == 0 */ } -__inline static void _init_workitem(_workitem *pwork, void *pfunc, void *cntx) +static inline void _init_workitem(_workitem *pwork, void *pfunc, void *cntx) { INIT_WORK(pwork, pfunc); } -__inline static void _set_workitem(_workitem *pwork) +static inline void _set_workitem(_workitem *pwork) { schedule_work(pwork); } -__inline static void _cancel_workitem_sync(_workitem *pwork) +static inline void _cancel_workitem_sync(_workitem *pwork) { cancel_work_sync(pwork); } diff --git a/drivers/staging/rtl8723bs/include/rtw_mlme.h b/drivers/staging/rtl8723bs/include/rtw_mlme.h index 2223e1f139f2..362737b83c3a 100644 --- a/drivers/staging/rtl8723bs/include/rtw_mlme.h +++ b/drivers/staging/rtl8723bs/include/rtw_mlme.h @@ -496,13 +496,13 @@ extern sint rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv); extern sint rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, sint keyid, u8 set_tx, bool enqueue); extern sint rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv); -__inline static u8 *get_bssid(struct mlme_priv *pmlmepriv) +static inline u8 *get_bssid(struct mlme_priv *pmlmepriv) { /* if sta_mode:pmlmepriv->cur_network.network.MacAddress => bssid */ /* if adhoc_mode:pmlmepriv->cur_network.network.MacAddress => ibss mac address */ return pmlmepriv->cur_network.network.MacAddress; } -__inline static sint check_fwstate(struct mlme_priv *pmlmepriv, sint state) +static inline sint check_fwstate(struct mlme_priv *pmlmepriv, sint state) { if (pmlmepriv->fw_state & state) return true; @@ -510,7 +510,7 @@ __inline static sint check_fwstate(struct mlme_priv *pmlmepriv, sint state) return false; } -__inline static sint get_fwstate(struct mlme_priv *pmlmepriv) +static inline sint get_fwstate(struct mlme_priv *pmlmepriv) { return pmlmepriv->fw_state; } @@ -522,7 +522,7 @@ __inline static sint get_fwstate(struct mlme_priv *pmlmepriv) * ### NOTE:#### (!!!!) * MUST TAKE CARE THAT BEFORE CALLING THIS FUNC, YOU SHOULD HAVE LOCKED pmlmepriv->lock */ -__inline static void set_fwstate(struct mlme_priv *pmlmepriv, sint state) +static inline void set_fwstate(struct mlme_priv *pmlmepriv, sint state) { pmlmepriv->fw_state |= state; /* FOR HW integration */ @@ -531,7 +531,7 @@ __inline static void set_fwstate(struct mlme_priv *pmlmepriv, sint state) } } -__inline static void _clr_fwstate_(struct mlme_priv *pmlmepriv, sint state) +static inline void _clr_fwstate_(struct mlme_priv *pmlmepriv, sint state) { pmlmepriv->fw_state &= ~state; /* FOR HW integration */ @@ -544,7 +544,7 @@ __inline static void _clr_fwstate_(struct mlme_priv *pmlmepriv, sint state) * No Limit on the calling context, * therefore set it to be the critical section... */ -__inline static void clr_fwstate(struct mlme_priv *pmlmepriv, sint state) +static inline void clr_fwstate(struct mlme_priv *pmlmepriv, sint state) { spin_lock_bh(&pmlmepriv->lock); if (check_fwstate(pmlmepriv, state) == true) @@ -552,7 +552,7 @@ __inline static void clr_fwstate(struct mlme_priv *pmlmepriv, sint state) spin_unlock_bh(&pmlmepriv->lock); } -__inline static void set_scanned_network_val(struct mlme_priv *pmlmepriv, sint val) +static inline void set_scanned_network_val(struct mlme_priv *pmlmepriv, sint val) { spin_lock_bh(&pmlmepriv->lock); pmlmepriv->num_of_scanned = val; diff --git a/drivers/staging/rtl8723bs/include/rtw_recv.h b/drivers/staging/rtl8723bs/include/rtw_recv.h index 5de946e66302..012d8f54814f 100644 --- a/drivers/staging/rtl8723bs/include/rtw_recv.h +++ b/drivers/staging/rtl8723bs/include/rtw_recv.h @@ -405,7 +405,7 @@ struct recv_buf *rtw_dequeue_recvbuf (struct __queue *queue); void rtw_reordering_ctrl_timeout_handler(struct timer_list *t); -__inline static u8 *get_rxmem(union recv_frame *precvframe) +static inline u8 *get_rxmem(union recv_frame *precvframe) { /* always return rx_head... */ if (precvframe == NULL) @@ -414,7 +414,7 @@ __inline static u8 *get_rxmem(union recv_frame *precvframe) return precvframe->u.hdr.rx_head; } -__inline static u8 *get_recvframe_data(union recv_frame *precvframe) +static inline u8 *get_recvframe_data(union recv_frame *precvframe) { /* alwasy return rx_data */ @@ -425,7 +425,7 @@ __inline static u8 *get_recvframe_data(union recv_frame *precvframe) } -__inline static u8 *recvframe_pull(union recv_frame *precvframe, sint sz) +static inline u8 *recvframe_pull(union recv_frame *precvframe, sint sz) { /* rx_data += sz; move rx_data sz bytes hereafter */ @@ -450,7 +450,7 @@ __inline static u8 *recvframe_pull(union recv_frame *precvframe, sint sz) } -__inline static u8 *recvframe_put(union recv_frame *precvframe, sint sz) +static inline u8 *recvframe_put(union recv_frame *precvframe, sint sz) { /* rx_tai += sz; move rx_tail sz bytes hereafter */ @@ -479,7 +479,7 @@ __inline static u8 *recvframe_put(union recv_frame *precvframe, sint sz) -__inline static u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz) +static inline u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz) { /* rmv data from rx_tail (by yitsen) */ @@ -503,7 +503,7 @@ __inline static u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz) } -__inline static union recv_frame *rxmem_to_recvframe(u8 *rxmem) +static inline union recv_frame *rxmem_to_recvframe(u8 *rxmem) { /* due to the design of 2048 bytes alignment of recv_frame, we can reference the union recv_frame */ /* from any given member of recv_frame. */ @@ -513,13 +513,13 @@ __inline static union recv_frame *rxmem_to_recvframe(u8 *rxmem) } -__inline static sint get_recvframe_len(union recv_frame *precvframe) +static inline sint get_recvframe_len(union recv_frame *precvframe) { return precvframe->u.hdr.len; } -__inline static s32 translate_percentage_to_dbm(u32 SignalStrengthIndex) +static inline s32 translate_percentage_to_dbm(u32 SignalStrengthIndex) { s32 SignalPower; /* in dBm. */ diff --git a/drivers/staging/rtl8723bs/include/sta_info.h b/drivers/staging/rtl8723bs/include/sta_info.h index b9df42d0677e..3acce5630f8e 100644 --- a/drivers/staging/rtl8723bs/include/sta_info.h +++ b/drivers/staging/rtl8723bs/include/sta_info.h @@ -348,7 +348,7 @@ struct sta_priv { }; -__inline static u32 wifi_mac_hash(u8 *mac) +static inline u32 wifi_mac_hash(u8 *mac) { u32 x; diff --git a/drivers/staging/rtl8723bs/include/wifi.h b/drivers/staging/rtl8723bs/include/wifi.h index 8c50bbb20f3b..2faf83704ff0 100644 --- a/drivers/staging/rtl8723bs/include/wifi.h +++ b/drivers/staging/rtl8723bs/include/wifi.h @@ -347,7 +347,7 @@ enum WIFI_REG_DOMAIN { (addr[4] == 0xff) && (addr[5] == 0xff)) ? true : false \ ) -__inline static int IS_MCAST(unsigned char *da) +static inline int IS_MCAST(unsigned char *da) { if ((*da) & 0x01) return true; @@ -355,20 +355,20 @@ __inline static int IS_MCAST(unsigned char *da) return false; } -__inline static unsigned char * get_ra(unsigned char *pframe) +static inline unsigned char * get_ra(unsigned char *pframe) { unsigned char *ra; ra = GetAddr1Ptr(pframe); return ra; } -__inline static unsigned char * get_ta(unsigned char *pframe) +static inline unsigned char * get_ta(unsigned char *pframe) { unsigned char *ta; ta = GetAddr2Ptr(pframe); return ta; } -__inline static unsigned char * get_da(unsigned char *pframe) +static inline unsigned char * get_da(unsigned char *pframe) { unsigned char *da; unsigned int to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe); @@ -392,7 +392,7 @@ __inline static unsigned char * get_da(unsigned char *pframe) } -__inline static unsigned char * get_sa(unsigned char *pframe) +static inline unsigned char * get_sa(unsigned char *pframe) { unsigned char *sa; unsigned int to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe); @@ -415,7 +415,7 @@ __inline static unsigned char * get_sa(unsigned char *pframe) return sa; } -__inline static unsigned char * get_hdr_bssid(unsigned char *pframe) +static inline unsigned char * get_hdr_bssid(unsigned char *pframe) { unsigned char *sa = NULL; unsigned int to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe); @@ -439,7 +439,7 @@ __inline static unsigned char * get_hdr_bssid(unsigned char *pframe) } -__inline static int IsFrameTypeCtrl(unsigned char *pframe) +static inline int IsFrameTypeCtrl(unsigned char *pframe) { if (WIFI_CTRL_TYPE == GetFrameType(pframe)) return true; diff --git a/drivers/staging/rtl8723bs/include/wlan_bssdef.h b/drivers/staging/rtl8723bs/include/wlan_bssdef.h index 88890b1c3c4c..723fc5b546ef 100644 --- a/drivers/staging/rtl8723bs/include/wlan_bssdef.h +++ b/drivers/staging/rtl8723bs/include/wlan_bssdef.h @@ -223,7 +223,7 @@ struct wlan_bssid_ex { u8 IEs[MAX_IE_SZ]; /* timestamp, beacon interval, and capability information) */ } __packed; -__inline static uint get_wlan_bssid_ex_sz(struct wlan_bssid_ex *bss) +static inline uint get_wlan_bssid_ex_sz(struct wlan_bssid_ex *bss) { return (sizeof(struct wlan_bssid_ex) - MAX_IE_SZ + bss->IELength); } diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c index 57876463b9b2..f819abb756dc 100644 --- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c +++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c @@ -19,8 +19,6 @@ #define RTW_MAX_REMAIN_ON_CHANNEL_DURATION 5000 /* ms */ #define RTW_MAX_NUM_PMKIDS 4 -#define RTW_CH_MAX_2G_CHANNEL 14 /* Max channel in 2G band */ - static const u32 rtw_cipher_suites[] = { WLAN_CIPHER_SUITE_WEP40, WLAN_CIPHER_SUITE_WEP104, diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c index 90c2997256b7..d1b199e3e5bd 100644 --- a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c +++ b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c @@ -21,13 +21,10 @@ #define RATE_COUNT 4 /* combo scan */ -#define WEXT_CSCAN_AMOUNT 9 -#define WEXT_CSCAN_BUF_LEN 360 #define WEXT_CSCAN_HEADER "CSCAN S\x01\x00\x00S\x00" #define WEXT_CSCAN_HEADER_SIZE 12 #define WEXT_CSCAN_SSID_SECTION 'S' #define WEXT_CSCAN_CHANNEL_SECTION 'C' -#define WEXT_CSCAN_NPROBE_SECTION 'N' #define WEXT_CSCAN_ACTV_DWELL_SECTION 'A' #define WEXT_CSCAN_PASV_DWELL_SECTION 'P' #define WEXT_CSCAN_HOME_DWELL_SECTION 'H' @@ -215,8 +212,6 @@ static char *translate_scan(struct adapter *padapter, } else if (ht_cap) { if (mcs_rate&0x8000) { /* MCS15 */ max_rate = (bw_40MHz) ? ((short_GI)?300:270):((short_GI)?144:130); - } else if (mcs_rate&0x0080) { /* MCS7 */ - max_rate = (bw_40MHz) ? ((short_GI)?150:135):((short_GI)?72:65); } else { /* default MCS7 */ /* DBG_871X("wx_get_scan, mcs_rate_bitmap = 0x%x\n", mcs_rate); */ max_rate = (bw_40MHz) ? ((short_GI)?150:135):((short_GI)?72:65); diff --git a/drivers/staging/rtl8723bs/os_dep/wifi_regd.c b/drivers/staging/rtl8723bs/os_dep/wifi_regd.c index aa2f62acc994..578b9f734231 100644 --- a/drivers/staging/rtl8723bs/os_dep/wifi_regd.c +++ b/drivers/staging/rtl8723bs/os_dep/wifi_regd.c @@ -33,11 +33,6 @@ REG_RULE(2467 - 10, 2472 + 10, 40, 0, 20, \ NL80211_RRF_PASSIVE_SCAN) -/* 2G chan 14, PASSIVS SCAN, NO OFDM (B only) */ -#define RTW_2GHZ_CH14 \ - REG_RULE(2484 - 10, 2484 + 10, 40, 0, 20, \ - NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_OFDM) - static const struct ieee80211_regdomain rtw_regdom_rd = { .n_reg_rules = 3, .alpha2 = "99", diff --git a/drivers/staging/rts5208/ms.c b/drivers/staging/rts5208/ms.c index 1128eec3bd08..e853fa9cc950 100644 --- a/drivers/staging/rts5208/ms.c +++ b/drivers/staging/rts5208/ms.c @@ -3842,7 +3842,7 @@ int mg_set_leaf_id(struct scsi_cmnd *srb, struct rtsx_chip *chip) int mg_get_local_EKB(struct scsi_cmnd *srb, struct rtsx_chip *chip) { - int retval = STATUS_FAIL; + int retval; int bufflen; unsigned int lun = SCSI_LUN(srb); u8 *buf = NULL; diff --git a/drivers/staging/rts5208/rtsx_transport.c b/drivers/staging/rts5208/rtsx_transport.c index 8277d7895608..561851cc8780 100644 --- a/drivers/staging/rts5208/rtsx_transport.c +++ b/drivers/staging/rts5208/rtsx_transport.c @@ -393,10 +393,9 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card, *offset = 0; *index = *index + 1; } - if ((i == (sg_cnt - 1)) || !resid) - option = RTSX_SG_VALID | RTSX_SG_END | RTSX_SG_TRANS_DATA; - else - option = RTSX_SG_VALID | RTSX_SG_TRANS_DATA; + option = RTSX_SG_VALID | RTSX_SG_TRANS_DATA; + if ((i == sg_cnt - 1) || !resid) + option |= RTSX_SG_END; rtsx_add_sg_tbl(chip, (u32)addr, (u32)len, option); @@ -541,10 +540,9 @@ static int rtsx_transfer_sglist_adma(struct rtsx_chip *chip, u8 card, dev_dbg(rtsx_dev(chip), "DMA addr: 0x%x, Len: 0x%x\n", (unsigned int)addr, len); + option = RTSX_SG_VALID | RTSX_SG_TRANS_DATA; if (j == (sg_cnt - 1)) - option = RTSX_SG_VALID | RTSX_SG_END | RTSX_SG_TRANS_DATA; - else - option = RTSX_SG_VALID | RTSX_SG_TRANS_DATA; + option |= RTSX_SG_END; rtsx_add_sg_tbl(chip, (u32)addr, (u32)len, option); diff --git a/drivers/staging/rts5208/sd.c b/drivers/staging/rts5208/sd.c index a06045344301..25c31496757e 100644 --- a/drivers/staging/rts5208/sd.c +++ b/drivers/staging/rts5208/sd.c @@ -2573,17 +2573,13 @@ SD_UNLOCK_ENTRY: retval = sd_sdr_tuning(chip); if (retval != STATUS_SUCCESS) { - if (sd20_mode) { + retval = sd_init_power(chip); + if (retval != STATUS_SUCCESS) goto status_fail; - } else { - retval = sd_init_power(chip); - if (retval != STATUS_SUCCESS) - goto status_fail; - try_sdio = false; - sd20_mode = true; - goto switch_fail; - } + try_sdio = false; + sd20_mode = true; + goto switch_fail; } sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr, @@ -2598,17 +2594,13 @@ SD_UNLOCK_ENTRY: if (read_lba0) { retval = sd_read_lba0(chip); if (retval != STATUS_SUCCESS) { - if (sd20_mode) { + retval = sd_init_power(chip); + if (retval != STATUS_SUCCESS) goto status_fail; - } else { - retval = sd_init_power(chip); - if (retval != STATUS_SUCCESS) - goto status_fail; - try_sdio = false; - sd20_mode = true; - goto switch_fail; - } + try_sdio = false; + sd20_mode = true; + goto switch_fail; } } } diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index b5abfe89190c..df8812c30640 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -454,9 +454,11 @@ err_clk: imx_disable_unprepare_clks(dev); disable_hsic_regulator: if (data->hsic_pad_regulator) - ret = regulator_disable(data->hsic_pad_regulator); + /* don't overwrite original ret (cf. EPROBE_DEFER) */ + regulator_disable(data->hsic_pad_regulator); if (pdata.flags & CI_HDRC_PMQOS) pm_qos_remove_request(&data->pm_qos_req); + data->ci_pdev = NULL; return ret; } @@ -469,14 +471,17 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); pm_runtime_put_noidle(&pdev->dev); } - ci_hdrc_remove_device(data->ci_pdev); + if (data->ci_pdev) + ci_hdrc_remove_device(data->ci_pdev); if (data->override_phy_control) usb_phy_shutdown(data->phy); - imx_disable_unprepare_clks(&pdev->dev); - if (data->plat_data->flags & CI_HDRC_PMQOS) - pm_qos_remove_request(&data->pm_qos_req); - if (data->hsic_pad_regulator) - regulator_disable(data->hsic_pad_regulator); + if (data->ci_pdev) { + imx_disable_unprepare_clks(&pdev->dev); + if (data->plat_data->flags & CI_HDRC_PMQOS) + pm_qos_remove_request(&data->pm_qos_req); + if (data->hsic_pad_regulator) + regulator_disable(data->hsic_pad_regulator); + } return 0; } diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 183b41753c98..62f4fb9b362f 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1301,10 +1301,6 @@ made_compressed_probe: tty_port_init(&acm->port); acm->port.ops = &acm_port_ops; - minor = acm_alloc_minor(acm); - if (minor < 0) - goto alloc_fail1; - ctrlsize = usb_endpoint_maxp(epctrl); readsize = usb_endpoint_maxp(epread) * (quirks == SINGLE_RX_URB ? 1 : 2); @@ -1312,6 +1308,13 @@ made_compressed_probe: acm->writesize = usb_endpoint_maxp(epwrite) * 20; acm->control = control_interface; acm->data = data_interface; + + usb_get_intf(acm->control); /* undone in destruct() */ + + minor = acm_alloc_minor(acm); + if (minor < 0) + goto alloc_fail1; + acm->minor = minor; acm->dev = usb_dev; if (h.usb_cdc_acm_descriptor) @@ -1458,7 +1461,6 @@ skip_countries: usb_driver_claim_interface(&acm_driver, data_interface, acm); usb_set_intfdata(data_interface, acm); - usb_get_intf(control_interface); tty_dev = tty_port_register_device(&acm->port, acm_tty_driver, minor, &control_interface->dev); if (IS_ERR(tty_dev)) { diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c index 1359b78a624e..6cf22c27f2d2 100644 --- a/drivers/usb/core/buffer.c +++ b/drivers/usb/core/buffer.c @@ -66,9 +66,7 @@ int hcd_buffer_create(struct usb_hcd *hcd) char name[16]; int i, size; - if (!IS_ENABLED(CONFIG_HAS_DMA) || - (!is_device_dma_capable(hcd->self.sysdev) && - !hcd->localmem_pool)) + if (hcd->localmem_pool || !hcd_uses_dma(hcd)) return 0; for (i = 0; i < HCD_BUFFER_POOLS; i++) { @@ -129,8 +127,7 @@ void *hcd_buffer_alloc( return gen_pool_dma_alloc(hcd->localmem_pool, size, dma); /* some USB hosts just use PIO */ - if (!IS_ENABLED(CONFIG_HAS_DMA) || - !is_device_dma_capable(bus->sysdev)) { + if (!hcd_uses_dma(hcd)) { *dma = ~(dma_addr_t) 0; return kmalloc(size, mem_flags); } @@ -160,8 +157,7 @@ void hcd_buffer_free( return; } - if (!IS_ENABLED(CONFIG_HAS_DMA) || - !is_device_dma_capable(bus->sysdev)) { + if (!hcd_uses_dma(hcd)) { kfree(addr); return; } diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c index 65de6f73b672..558890ada0e5 100644 --- a/drivers/usb/core/file.c +++ b/drivers/usb/core/file.c @@ -193,9 +193,10 @@ int usb_register_dev(struct usb_interface *intf, intf->minor = minor; break; } - up_write(&minor_rwsem); - if (intf->minor < 0) + if (intf->minor < 0) { + up_write(&minor_rwsem); return -EXFULL; + } /* create a usb class device for this usb interface */ snprintf(name, sizeof(name), class_driver->name, minor - minor_base); @@ -203,12 +204,11 @@ int usb_register_dev(struct usb_interface *intf, MKDEV(USB_MAJOR, minor), class_driver, "%s", kbasename(name)); if (IS_ERR(intf->usb_dev)) { - down_write(&minor_rwsem); usb_minors[minor] = NULL; intf->minor = -1; - up_write(&minor_rwsem); retval = PTR_ERR(intf->usb_dev); } + up_write(&minor_rwsem); return retval; } EXPORT_SYMBOL_GPL(usb_register_dev); @@ -234,12 +234,12 @@ void usb_deregister_dev(struct usb_interface *intf, return; dev_dbg(&intf->dev, "removing %d minor\n", intf->minor); + device_destroy(usb_class->class, MKDEV(USB_MAJOR, intf->minor)); down_write(&minor_rwsem); usb_minors[intf->minor] = NULL; up_write(&minor_rwsem); - device_destroy(usb_class->class, MKDEV(USB_MAJOR, intf->minor)); intf->usb_dev = NULL; intf->minor = -1; destroy_usb_class(); diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 2ccbc2f83570..8592c0344fe8 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1412,7 +1412,7 @@ int usb_hcd_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, if (usb_endpoint_xfer_control(&urb->ep->desc)) { if (hcd->self.uses_pio_for_control) return ret; - if (IS_ENABLED(CONFIG_HAS_DMA) && hcd->self.uses_dma) { + if (hcd_uses_dma(hcd)) { if (is_vmalloc_addr(urb->setup_packet)) { WARN_ONCE(1, "setup packet is not dma capable\n"); return -EAGAIN; @@ -1446,7 +1446,7 @@ int usb_hcd_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, dir = usb_urb_dir_in(urb) ? DMA_FROM_DEVICE : DMA_TO_DEVICE; if (urb->transfer_buffer_length != 0 && !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) { - if (IS_ENABLED(CONFIG_HAS_DMA) && hcd->self.uses_dma) { + if (hcd_uses_dma(hcd)) { if (urb->num_sgs) { int n; diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index e844bb7b5676..5adf489428aa 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -2218,14 +2218,14 @@ int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr, (struct usb_cdc_dmm_desc *)buffer; break; case USB_CDC_MDLM_TYPE: - if (elength < sizeof(struct usb_cdc_mdlm_desc *)) + if (elength < sizeof(struct usb_cdc_mdlm_desc)) goto next_desc; if (desc) return -EINVAL; desc = (struct usb_cdc_mdlm_desc *)buffer; break; case USB_CDC_MDLM_DETAIL_TYPE: - if (elength < sizeof(struct usb_cdc_mdlm_detail_desc *)) + if (elength < sizeof(struct usb_cdc_mdlm_detail_desc)) goto next_desc; if (detail) return -EINVAL; diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index ee144ff8af5b..111787a137ee 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -4608,7 +4608,7 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, buf = urb->transfer_buffer; - if (hcd->self.uses_dma) { + if (hcd_uses_dma(hcd)) { if (!buf && (urb->transfer_dma & 3)) { dev_err(hsotg->dev, "%s: unaligned transfer with no transfer_buffer", diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 9118b42c70b6..76883ff4f5bb 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1976,6 +1976,7 @@ void composite_disconnect(struct usb_gadget *gadget) * disconnect callbacks? */ spin_lock_irqsave(&cdev->lock, flags); + cdev->suspended = 0; if (cdev->config) reset_config(cdev); if (cdev->driver->disconnect) diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c index 29cc5693e05c..7c96c4665178 100644 --- a/drivers/usb/gadget/function/f_mass_storage.c +++ b/drivers/usb/gadget/function/f_mass_storage.c @@ -261,7 +261,7 @@ struct fsg_common; struct fsg_common { struct usb_gadget *gadget; struct usb_composite_dev *cdev; - struct fsg_dev *fsg, *new_fsg; + struct fsg_dev *fsg; wait_queue_head_t io_wait; wait_queue_head_t fsg_wait; @@ -290,6 +290,7 @@ struct fsg_common { unsigned int bulk_out_maxpacket; enum fsg_state state; /* For exception handling */ unsigned int exception_req_tag; + void *exception_arg; enum data_direction data_dir; u32 data_size; @@ -391,7 +392,8 @@ static int fsg_set_halt(struct fsg_dev *fsg, struct usb_ep *ep) /* These routines may be called in process context or in_irq */ -static void raise_exception(struct fsg_common *common, enum fsg_state new_state) +static void __raise_exception(struct fsg_common *common, enum fsg_state new_state, + void *arg) { unsigned long flags; @@ -404,6 +406,7 @@ static void raise_exception(struct fsg_common *common, enum fsg_state new_state) if (common->state <= new_state) { common->exception_req_tag = common->ep0_req_tag; common->state = new_state; + common->exception_arg = arg; if (common->thread_task) send_sig_info(SIGUSR1, SEND_SIG_PRIV, common->thread_task); @@ -411,6 +414,10 @@ static void raise_exception(struct fsg_common *common, enum fsg_state new_state) spin_unlock_irqrestore(&common->lock, flags); } +static void raise_exception(struct fsg_common *common, enum fsg_state new_state) +{ + __raise_exception(common, new_state, NULL); +} /*-------------------------------------------------------------------------*/ @@ -2285,16 +2292,16 @@ reset: static int fsg_set_alt(struct usb_function *f, unsigned intf, unsigned alt) { struct fsg_dev *fsg = fsg_from_func(f); - fsg->common->new_fsg = fsg; - raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE); + + __raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE, fsg); return USB_GADGET_DELAYED_STATUS; } static void fsg_disable(struct usb_function *f) { struct fsg_dev *fsg = fsg_from_func(f); - fsg->common->new_fsg = NULL; - raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE); + + __raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE, NULL); } @@ -2307,6 +2314,7 @@ static void handle_exception(struct fsg_common *common) enum fsg_state old_state; struct fsg_lun *curlun; unsigned int exception_req_tag; + struct fsg_dev *new_fsg; /* * Clear the existing signals. Anything but SIGUSR1 is converted @@ -2360,6 +2368,7 @@ static void handle_exception(struct fsg_common *common) common->next_buffhd_to_fill = &common->buffhds[0]; common->next_buffhd_to_drain = &common->buffhds[0]; exception_req_tag = common->exception_req_tag; + new_fsg = common->exception_arg; old_state = common->state; common->state = FSG_STATE_NORMAL; @@ -2413,8 +2422,8 @@ static void handle_exception(struct fsg_common *common) break; case FSG_STATE_CONFIG_CHANGE: - do_set_interface(common, common->new_fsg); - if (common->new_fsg) + do_set_interface(common, new_fsg); + if (new_fsg) usb_composite_setup_continue(common->cdev); break; @@ -2989,8 +2998,7 @@ static void fsg_unbind(struct usb_configuration *c, struct usb_function *f) DBG(fsg, "unbind\n"); if (fsg->common->fsg == fsg) { - fsg->common->new_fsg = NULL; - raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE); + __raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE, NULL); /* FIXME: make interruptible or killable somehow? */ wait_event(common->fsg_wait, common->fsg != fsg); } diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c index 87062d22134d..1f4c3fbd1df8 100644 --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -19,6 +19,7 @@ #include <linux/pm_runtime.h> #include <linux/sizes.h> #include <linux/slab.h> +#include <linux/string.h> #include <linux/sys_soc.h> #include <linux/uaccess.h> #include <linux/usb/ch9.h> @@ -2450,9 +2451,9 @@ static ssize_t role_store(struct device *dev, struct device_attribute *attr, if (usb3->forced_b_device) return -EBUSY; - if (!strncmp(buf, "host", strlen("host"))) + if (sysfs_streq(buf, "host")) new_mode_is_host = true; - else if (!strncmp(buf, "peripheral", strlen("peripheral"))) + else if (sysfs_streq(buf, "peripheral")) new_mode_is_host = false; else return -EINVAL; diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c index 77cc36efae95..0dbfa5c10703 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -1629,6 +1629,10 @@ static int fotg210_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, /* see what we found out */ temp = check_reset_complete(fotg210, wIndex, status_reg, fotg210_readl(fotg210, status_reg)); + + /* restart schedule */ + fotg210->command |= CMD_RUN; + fotg210_writel(fotg210, fotg210->command, &fotg210->regs->command); } if (!(temp & (PORT_RESUME|PORT_RESET))) { diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index c1582fbd1150..38e920ac7f82 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -968,6 +968,11 @@ static const struct usb_device_id option_ids[] = { { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7B) }, { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7C) }, + /* Motorola devices */ + { USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x2a70, 0xff, 0xff, 0xff) }, /* mdm6600 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x2e0a, 0xff, 0xff, 0xff) }, /* mdm9600 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x4281, 0x0a, 0x00, 0xfc) }, /* mdm ram dl */ + { USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x900e, 0xff, 0xff, 0xff) }, /* mdm qc dl */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, @@ -1549,6 +1554,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1428, 0xff, 0xff, 0xff), /* Telewell TW-LTE 4G v2 */ .driver_info = RSVD(2) }, { USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x1476, 0xff) }, /* GosunCn ZTE WeLink ME3630 (ECM/NCM mode) */ + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1481, 0xff, 0x00, 0x00) }, /* ZTE MF871A */ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1533, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1534, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1535, 0xff, 0xff, 0xff) }, @@ -1952,11 +1958,15 @@ static const struct usb_device_id option_ids[] = { .driver_info = RSVD(4) }, { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e35, 0xff), /* D-Link DWM-222 */ .driver_info = RSVD(4) }, + { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e3d, 0xff), /* D-Link DWM-222 A2 */ + .driver_info = RSVD(4) }, { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */ { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */ { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/A3 */ { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2031, 0xff), /* Olicard 600 */ .driver_info = RSVD(4) }, + { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2060, 0xff), /* BroadMobi BM818 */ + .driver_info = RSVD(4) }, { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) }, /* OLICARD300 - MT6225 */ { USB_DEVICE(INOVIA_VENDOR_ID, INOVIA_SEW858) }, { USB_DEVICE(VIATELECOM_VENDOR_ID, VIATELECOM_PRODUCT_CDS7) }, diff --git a/fs/Kconfig b/fs/Kconfig index bfb1c6095c7a..669d46550e6d 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -261,6 +261,7 @@ source "fs/romfs/Kconfig" source "fs/pstore/Kconfig" source "fs/sysv/Kconfig" source "fs/ufs/Kconfig" +source "fs/erofs/Kconfig" endif # MISC_FILESYSTEMS diff --git a/fs/Makefile b/fs/Makefile index d60089fd689b..b2e4973a0bea 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -130,3 +130,4 @@ obj-$(CONFIG_F2FS_FS) += f2fs/ obj-$(CONFIG_CEPH_FS) += ceph/ obj-$(CONFIG_PSTORE) += pstore/ obj-$(CONFIG_EFIVAR_FS) += efivarfs/ +obj-$(CONFIG_EROFS_FS) += erofs/ diff --git a/fs/afs/cmservice.c b/fs/afs/cmservice.c index 4f1b6f466ff5..b86195e4dc6c 100644 --- a/fs/afs/cmservice.c +++ b/fs/afs/cmservice.c @@ -505,18 +505,14 @@ static void SRXAFSCB_ProbeUuid(struct work_struct *work) struct afs_call *call = container_of(work, struct afs_call, work); struct afs_uuid *r = call->request; - struct { - __be32 match; - } reply; - _enter(""); if (memcmp(r, &call->net->uuid, sizeof(call->net->uuid)) == 0) - reply.match = htonl(0); + afs_send_empty_reply(call); else - reply.match = htonl(1); + rxrpc_kernel_abort_call(call->net->socket, call->rxcall, + 1, 1, "K-1"); - afs_send_simple_reply(call, &reply, sizeof(reply)); afs_put_call(call); _leave(""); } diff --git a/fs/afs/dir.c b/fs/afs/dir.c index e640d67274be..81207dc3c997 100644 --- a/fs/afs/dir.c +++ b/fs/afs/dir.c @@ -440,7 +440,7 @@ static int afs_dir_iterate_block(struct afs_vnode *dvnode, * iterate through the data blob that lists the contents of an AFS directory */ static int afs_dir_iterate(struct inode *dir, struct dir_context *ctx, - struct key *key) + struct key *key, afs_dataversion_t *_dir_version) { struct afs_vnode *dvnode = AFS_FS_I(dir); struct afs_xdr_dir_page *dbuf; @@ -460,6 +460,7 @@ static int afs_dir_iterate(struct inode *dir, struct dir_context *ctx, req = afs_read_dir(dvnode, key); if (IS_ERR(req)) return PTR_ERR(req); + *_dir_version = req->data_version; /* round the file position up to the next entry boundary */ ctx->pos += sizeof(union afs_xdr_dirent) - 1; @@ -514,7 +515,10 @@ out: */ static int afs_readdir(struct file *file, struct dir_context *ctx) { - return afs_dir_iterate(file_inode(file), ctx, afs_file_key(file)); + afs_dataversion_t dir_version; + + return afs_dir_iterate(file_inode(file), ctx, afs_file_key(file), + &dir_version); } /* @@ -555,7 +559,8 @@ static int afs_lookup_one_filldir(struct dir_context *ctx, const char *name, * - just returns the FID the dentry name maps to if found */ static int afs_do_lookup_one(struct inode *dir, struct dentry *dentry, - struct afs_fid *fid, struct key *key) + struct afs_fid *fid, struct key *key, + afs_dataversion_t *_dir_version) { struct afs_super_info *as = dir->i_sb->s_fs_info; struct afs_lookup_one_cookie cookie = { @@ -568,7 +573,7 @@ static int afs_do_lookup_one(struct inode *dir, struct dentry *dentry, _enter("{%lu},%p{%pd},", dir->i_ino, dentry, dentry); /* search the directory */ - ret = afs_dir_iterate(dir, &cookie.ctx, key); + ret = afs_dir_iterate(dir, &cookie.ctx, key, _dir_version); if (ret < 0) { _leave(" = %d [iter]", ret); return ret; @@ -642,6 +647,7 @@ static struct inode *afs_do_lookup(struct inode *dir, struct dentry *dentry, struct afs_server *server; struct afs_vnode *dvnode = AFS_FS_I(dir), *vnode; struct inode *inode = NULL, *ti; + afs_dataversion_t data_version = READ_ONCE(dvnode->status.data_version); int ret, i; _enter("{%lu},%p{%pd},", dir->i_ino, dentry, dentry); @@ -669,12 +675,14 @@ static struct inode *afs_do_lookup(struct inode *dir, struct dentry *dentry, cookie->fids[i].vid = as->volume->vid; /* search the directory */ - ret = afs_dir_iterate(dir, &cookie->ctx, key); + ret = afs_dir_iterate(dir, &cookie->ctx, key, &data_version); if (ret < 0) { inode = ERR_PTR(ret); goto out; } + dentry->d_fsdata = (void *)(unsigned long)data_version; + inode = ERR_PTR(-ENOENT); if (!cookie->found) goto out; @@ -968,7 +976,8 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags) struct dentry *parent; struct inode *inode; struct key *key; - long dir_version, de_version; + afs_dataversion_t dir_version; + long de_version; int ret; if (flags & LOOKUP_RCU) @@ -1014,20 +1023,20 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags) * on a 32-bit system, we only have 32 bits in the dentry to store the * version. */ - dir_version = (long)dir->status.data_version; + dir_version = dir->status.data_version; de_version = (long)dentry->d_fsdata; - if (de_version == dir_version) - goto out_valid; + if (de_version == (long)dir_version) + goto out_valid_noupdate; - dir_version = (long)dir->invalid_before; - if (de_version - dir_version >= 0) + dir_version = dir->invalid_before; + if (de_version - (long)dir_version >= 0) goto out_valid; _debug("dir modified"); afs_stat_v(dir, n_reval); /* search the directory for this vnode */ - ret = afs_do_lookup_one(&dir->vfs_inode, dentry, &fid, key); + ret = afs_do_lookup_one(&dir->vfs_inode, dentry, &fid, key, &dir_version); switch (ret) { case 0: /* the filename maps to something */ @@ -1080,7 +1089,8 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags) } out_valid: - dentry->d_fsdata = (void *)dir_version; + dentry->d_fsdata = (void *)(unsigned long)dir_version; +out_valid_noupdate: dput(parent); key_put(key); _leave(" = 1 [valid]"); @@ -1186,6 +1196,20 @@ static void afs_prep_for_new_inode(struct afs_fs_cursor *fc, } /* + * Note that a dentry got changed. We need to set d_fsdata to the data version + * number derived from the result of the operation. It doesn't matter if + * d_fsdata goes backwards as we'll just revalidate. + */ +static void afs_update_dentry_version(struct afs_fs_cursor *fc, + struct dentry *dentry, + struct afs_status_cb *scb) +{ + if (fc->ac.error == 0) + dentry->d_fsdata = + (void *)(unsigned long)scb->status.data_version; +} + +/* * create a directory on an AFS filesystem */ static int afs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) @@ -1227,6 +1251,7 @@ static int afs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) afs_check_for_remote_deletion(&fc, dvnode); afs_vnode_commit_status(&fc, dvnode, fc.cb_break, &data_version, &scb[0]); + afs_update_dentry_version(&fc, dentry, &scb[0]); afs_vnode_new_inode(&fc, dentry, &iget_data, &scb[1]); ret = afs_end_vnode_operation(&fc); if (ret < 0) @@ -1319,6 +1344,7 @@ static int afs_rmdir(struct inode *dir, struct dentry *dentry) afs_vnode_commit_status(&fc, dvnode, fc.cb_break, &data_version, scb); + afs_update_dentry_version(&fc, dentry, scb); ret = afs_end_vnode_operation(&fc); if (ret == 0) { afs_dir_remove_subdir(dentry); @@ -1458,6 +1484,7 @@ static int afs_unlink(struct inode *dir, struct dentry *dentry) &data_version, &scb[0]); afs_vnode_commit_status(&fc, vnode, fc.cb_break_2, &data_version_2, &scb[1]); + afs_update_dentry_version(&fc, dentry, &scb[0]); ret = afs_end_vnode_operation(&fc); if (ret == 0 && !(scb[1].have_status || scb[1].have_error)) ret = afs_dir_remove_link(dvnode, dentry, key); @@ -1526,6 +1553,7 @@ static int afs_create(struct inode *dir, struct dentry *dentry, umode_t mode, afs_check_for_remote_deletion(&fc, dvnode); afs_vnode_commit_status(&fc, dvnode, fc.cb_break, &data_version, &scb[0]); + afs_update_dentry_version(&fc, dentry, &scb[0]); afs_vnode_new_inode(&fc, dentry, &iget_data, &scb[1]); ret = afs_end_vnode_operation(&fc); if (ret < 0) @@ -1607,6 +1635,7 @@ static int afs_link(struct dentry *from, struct inode *dir, afs_vnode_commit_status(&fc, vnode, fc.cb_break_2, NULL, &scb[1]); ihold(&vnode->vfs_inode); + afs_update_dentry_version(&fc, dentry, &scb[0]); d_instantiate(dentry, &vnode->vfs_inode); mutex_unlock(&vnode->io_lock); @@ -1686,6 +1715,7 @@ static int afs_symlink(struct inode *dir, struct dentry *dentry, afs_check_for_remote_deletion(&fc, dvnode); afs_vnode_commit_status(&fc, dvnode, fc.cb_break, &data_version, &scb[0]); + afs_update_dentry_version(&fc, dentry, &scb[0]); afs_vnode_new_inode(&fc, dentry, &iget_data, &scb[1]); ret = afs_end_vnode_operation(&fc); if (ret < 0) @@ -1791,6 +1821,17 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry, } } + /* This bit is potentially nasty as there's a potential race with + * afs_d_revalidate{,_rcu}(). We have to change d_fsdata on the dentry + * to reflect it's new parent's new data_version after the op, but + * d_revalidate may see old_dentry between the op having taken place + * and the version being updated. + * + * So drop the old_dentry for now to make other threads go through + * lookup instead - which we hold a lock against. + */ + d_drop(old_dentry); + ret = -ERESTARTSYS; if (afs_begin_vnode_operation(&fc, orig_dvnode, key, true)) { afs_dataversion_t orig_data_version; @@ -1802,9 +1843,9 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry, if (orig_dvnode != new_dvnode) { if (mutex_lock_interruptible_nested(&new_dvnode->io_lock, 1) < 0) { afs_end_vnode_operation(&fc); - goto error_rehash; + goto error_rehash_old; } - new_data_version = new_dvnode->status.data_version; + new_data_version = new_dvnode->status.data_version + 1; } else { new_data_version = orig_data_version; new_scb = &scb[0]; @@ -1827,7 +1868,7 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry, } ret = afs_end_vnode_operation(&fc); if (ret < 0) - goto error_rehash; + goto error_rehash_old; } if (ret == 0) { @@ -1853,10 +1894,26 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry, drop_nlink(new_inode); spin_unlock(&new_inode->i_lock); } + + /* Now we can update d_fsdata on the dentries to reflect their + * new parent's data_version. + * + * Note that if we ever implement RENAME_EXCHANGE, we'll have + * to update both dentries with opposing dir versions. + */ + if (new_dvnode != orig_dvnode) { + afs_update_dentry_version(&fc, old_dentry, &scb[1]); + afs_update_dentry_version(&fc, new_dentry, &scb[1]); + } else { + afs_update_dentry_version(&fc, old_dentry, &scb[0]); + afs_update_dentry_version(&fc, new_dentry, &scb[0]); + } d_move(old_dentry, new_dentry); goto error_tmp; } +error_rehash_old: + d_rehash(new_dentry); error_rehash: if (rehash) d_rehash(rehash); diff --git a/fs/afs/file.c b/fs/afs/file.c index 56b69576274d..dd3c55c9101c 100644 --- a/fs/afs/file.c +++ b/fs/afs/file.c @@ -191,11 +191,13 @@ void afs_put_read(struct afs_read *req) int i; if (refcount_dec_and_test(&req->usage)) { - for (i = 0; i < req->nr_pages; i++) - if (req->pages[i]) - put_page(req->pages[i]); - if (req->pages != req->array) - kfree(req->pages); + if (req->pages) { + for (i = 0; i < req->nr_pages; i++) + if (req->pages[i]) + put_page(req->pages[i]); + if (req->pages != req->array) + kfree(req->pages); + } kfree(req); } } diff --git a/fs/afs/vlclient.c b/fs/afs/vlclient.c index d7e0fd3c00df..cfb0ac4bd039 100644 --- a/fs/afs/vlclient.c +++ b/fs/afs/vlclient.c @@ -56,23 +56,24 @@ static int afs_deliver_vl_get_entry_by_name_u(struct afs_call *call) struct afs_uuid__xdr *xdr; struct afs_uuid *uuid; int j; + int n = entry->nr_servers; tmp = ntohl(uvldb->serverFlags[i]); if (tmp & AFS_VLSF_DONTUSE || (new_only && !(tmp & AFS_VLSF_NEWREPSITE))) continue; if (tmp & AFS_VLSF_RWVOL) { - entry->fs_mask[i] |= AFS_VOL_VTM_RW; + entry->fs_mask[n] |= AFS_VOL_VTM_RW; if (vlflags & AFS_VLF_BACKEXISTS) - entry->fs_mask[i] |= AFS_VOL_VTM_BAK; + entry->fs_mask[n] |= AFS_VOL_VTM_BAK; } if (tmp & AFS_VLSF_ROVOL) - entry->fs_mask[i] |= AFS_VOL_VTM_RO; - if (!entry->fs_mask[i]) + entry->fs_mask[n] |= AFS_VOL_VTM_RO; + if (!entry->fs_mask[n]) continue; xdr = &uvldb->serverNumber[i]; - uuid = (struct afs_uuid *)&entry->fs_server[i]; + uuid = (struct afs_uuid *)&entry->fs_server[n]; uuid->time_low = xdr->time_low; uuid->time_mid = htons(ntohl(xdr->time_mid)); uuid->time_hi_and_version = htons(ntohl(xdr->time_hi_and_version)); diff --git a/fs/block_dev.c b/fs/block_dev.c index eb657ab94060..677cb364d33f 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -345,24 +345,15 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) struct bio *bio; bool is_poll = (iocb->ki_flags & IOCB_HIPRI) != 0; bool is_read = (iov_iter_rw(iter) == READ), is_sync; - bool nowait = (iocb->ki_flags & IOCB_NOWAIT) != 0; loff_t pos = iocb->ki_pos; blk_qc_t qc = BLK_QC_T_NONE; - gfp_t gfp; - int ret; + int ret = 0; if ((pos | iov_iter_alignment(iter)) & (bdev_logical_block_size(bdev) - 1)) return -EINVAL; - if (nowait) - gfp = GFP_NOWAIT; - else - gfp = GFP_KERNEL; - - bio = bio_alloc_bioset(gfp, nr_pages, &blkdev_dio_pool); - if (!bio) - return -EAGAIN; + bio = bio_alloc_bioset(GFP_KERNEL, nr_pages, &blkdev_dio_pool); dio = container_of(bio, struct blkdev_dio, bio); dio->is_sync = is_sync = is_sync_kiocb(iocb); @@ -384,7 +375,6 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) if (!is_poll) blk_start_plug(&plug); - ret = 0; for (;;) { bio_set_dev(bio, bdev); bio->bi_iter.bi_sector = pos >> 9; @@ -409,14 +399,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) task_io_account_write(bio->bi_iter.bi_size); } - /* - * Tell underlying layer to not block for resource shortage. - * And if we would have blocked, return error inline instead - * of through the bio->bi_end_io() callback. - */ - if (nowait) - bio->bi_opf |= (REQ_NOWAIT | REQ_NOWAIT_INLINE); - + dio->size += bio->bi_iter.bi_size; pos += bio->bi_iter.bi_size; nr_pages = iov_iter_npages(iter, BIO_MAX_PAGES); @@ -428,13 +411,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) polled = true; } - dio->size += bio->bi_iter.bi_size; qc = submit_bio(bio); - if (qc == BLK_QC_T_EAGAIN) { - dio->size -= bio->bi_iter.bi_size; - ret = -EAGAIN; - goto error; - } if (polled) WRITE_ONCE(iocb->ki_cookie, qc); @@ -455,19 +432,8 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) atomic_inc(&dio->ref); } - dio->size += bio->bi_iter.bi_size; - qc = submit_bio(bio); - if (qc == BLK_QC_T_EAGAIN) { - dio->size -= bio->bi_iter.bi_size; - ret = -EAGAIN; - goto error; - } - - bio = bio_alloc(gfp, nr_pages); - if (!bio) { - ret = -EAGAIN; - goto error; - } + submit_bio(bio); + bio = bio_alloc(GFP_KERNEL, nr_pages); } if (!is_poll) @@ -487,7 +453,6 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) } __set_current_state(TASK_RUNNING); -out: if (!ret) ret = blk_status_to_errno(dio->bio.bi_status); if (likely(!ret)) @@ -495,10 +460,6 @@ out: bio_put(&dio->bio); return ret; -error: - if (!is_poll) - blk_finish_plug(&plug); - goto out; } static ssize_t diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 299e11e6c554..94660063a162 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -401,7 +401,6 @@ struct btrfs_dev_replace { struct raid_kobject { u64 flags; struct kobject kobj; - struct list_head list; }; /* @@ -915,8 +914,6 @@ struct btrfs_fs_info { u32 thread_pool_size; struct kobject *space_info_kobj; - struct list_head pending_raid_kobjs; - spinlock_t pending_raid_kobjs_lock; /* uncontended */ u64 total_pinned; @@ -2698,7 +2695,6 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr); int btrfs_make_block_group(struct btrfs_trans_handle *trans, u64 bytes_used, u64 type, u64 chunk_offset, u64 size); -void btrfs_add_raid_kobjects(struct btrfs_fs_info *fs_info); struct btrfs_trans_handle *btrfs_start_trans_remove_block_group( struct btrfs_fs_info *fs_info, const u64 chunk_offset); diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 5f7ee70b3d1a..97beb351a10c 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2683,8 +2683,6 @@ int open_ctree(struct super_block *sb, INIT_LIST_HEAD(&fs_info->delayed_iputs); INIT_LIST_HEAD(&fs_info->delalloc_roots); INIT_LIST_HEAD(&fs_info->caching_block_groups); - INIT_LIST_HEAD(&fs_info->pending_raid_kobjs); - spin_lock_init(&fs_info->pending_raid_kobjs_lock); spin_lock_init(&fs_info->delalloc_root_lock); spin_lock_init(&fs_info->trans_lock); spin_lock_init(&fs_info->fs_roots_radix_lock); diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index d3b58e388535..8b7eb22d508a 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4,6 +4,7 @@ */ #include <linux/sched.h> +#include <linux/sched/mm.h> #include <linux/sched/signal.h> #include <linux/pagemap.h> #include <linux/writeback.h> @@ -7888,33 +7889,6 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info) return 0; } -/* link_block_group will queue up kobjects to add when we're reclaim-safe */ -void btrfs_add_raid_kobjects(struct btrfs_fs_info *fs_info) -{ - struct btrfs_space_info *space_info; - struct raid_kobject *rkobj; - LIST_HEAD(list); - int ret = 0; - - spin_lock(&fs_info->pending_raid_kobjs_lock); - list_splice_init(&fs_info->pending_raid_kobjs, &list); - spin_unlock(&fs_info->pending_raid_kobjs_lock); - - list_for_each_entry(rkobj, &list, list) { - space_info = btrfs_find_space_info(fs_info, rkobj->flags); - - ret = kobject_add(&rkobj->kobj, &space_info->kobj, - "%s", btrfs_bg_type_to_raid_name(rkobj->flags)); - if (ret) { - kobject_put(&rkobj->kobj); - break; - } - } - if (ret) - btrfs_warn(fs_info, - "failed to add kobject for block cache, ignoring"); -} - static void link_block_group(struct btrfs_block_group_cache *cache) { struct btrfs_space_info *space_info = cache->space_info; @@ -7929,18 +7903,36 @@ static void link_block_group(struct btrfs_block_group_cache *cache) up_write(&space_info->groups_sem); if (first) { - struct raid_kobject *rkobj = kzalloc(sizeof(*rkobj), GFP_NOFS); + struct raid_kobject *rkobj; + unsigned int nofs_flag; + int ret; + + /* + * Setup a NOFS context because kobject_add(), deep in its call + * chain, does GFP_KERNEL allocations, and we are often called + * in a context where if reclaim is triggered we can deadlock + * (we are either holding a transaction handle or some lock + * required for a transaction commit). + */ + nofs_flag = memalloc_nofs_save(); + rkobj = kzalloc(sizeof(*rkobj), GFP_KERNEL); if (!rkobj) { + memalloc_nofs_restore(nofs_flag); btrfs_warn(cache->fs_info, "couldn't alloc memory for raid level kobject"); return; } rkobj->flags = cache->flags; kobject_init(&rkobj->kobj, &btrfs_raid_ktype); - - spin_lock(&fs_info->pending_raid_kobjs_lock); - list_add_tail(&rkobj->list, &fs_info->pending_raid_kobjs); - spin_unlock(&fs_info->pending_raid_kobjs_lock); + ret = kobject_add(&rkobj->kobj, &space_info->kobj, "%s", + btrfs_bg_type_to_raid_name(rkobj->flags)); + memalloc_nofs_restore(nofs_flag); + if (ret) { + kobject_put(&rkobj->kobj); + btrfs_warn(fs_info, + "failed to add kobject for block cache, ignoring"); + return; + } space_info->block_group_kobjs[index] = &rkobj->kobj; } } @@ -8206,7 +8198,6 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info) inc_block_group_ro(cache, 1); } - btrfs_add_raid_kobjects(info); btrfs_init_global_block_rsv(info); ret = check_chunk_block_group_mappings(info); error: @@ -8975,6 +8966,7 @@ int btrfs_trim_fs(struct btrfs_fs_info *fs_info, struct fstrim_range *range) struct btrfs_device *device; struct list_head *devices; u64 group_trimmed; + u64 range_end = U64_MAX; u64 start; u64 end; u64 trimmed = 0; @@ -8984,16 +8976,23 @@ int btrfs_trim_fs(struct btrfs_fs_info *fs_info, struct fstrim_range *range) int dev_ret = 0; int ret = 0; + /* + * Check range overflow if range->len is set. + * The default range->len is U64_MAX. + */ + if (range->len != U64_MAX && + check_add_overflow(range->start, range->len, &range_end)) + return -EINVAL; + cache = btrfs_lookup_first_block_group(fs_info, range->start); for (; cache; cache = next_block_group(cache)) { - if (cache->key.objectid >= (range->start + range->len)) { + if (cache->key.objectid >= range_end) { btrfs_put_block_group(cache); break; } start = max(range->start, cache->key.objectid); - end = min(range->start + range->len, - cache->key.objectid + cache->key.offset); + end = min(range_end, cache->key.objectid + cache->key.offset); if (end - start >= range->minlen) { if (!block_group_cache_done(cache)) { diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index d74b74ca07af..a447d3ec48d5 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -3087,16 +3087,6 @@ static int btrfs_relocate_chunk(struct btrfs_fs_info *fs_info, u64 chunk_offset) if (ret) return ret; - /* - * We add the kobjects here (and after forcing data chunk creation) - * since relocation is the only place we'll create chunks of a new - * type at runtime. The only place where we'll remove the last - * chunk of a type is the call immediately below this one. Even - * so, we're protected against races with the cleaner thread since - * we're covered by the delete_unused_bgs_mutex. - */ - btrfs_add_raid_kobjects(fs_info); - trans = btrfs_start_trans_remove_block_group(root->fs_info, chunk_offset); if (IS_ERR(trans)) { @@ -3223,9 +3213,6 @@ static int btrfs_may_alloc_data_chunk(struct btrfs_fs_info *fs_info, btrfs_end_transaction(trans); if (ret < 0) return ret; - - btrfs_add_raid_kobjects(fs_info); - return 1; } } diff --git a/drivers/staging/erofs/Kconfig b/fs/erofs/Kconfig index 16316d1adca3..16316d1adca3 100644 --- a/drivers/staging/erofs/Kconfig +++ b/fs/erofs/Kconfig diff --git a/drivers/staging/erofs/Makefile b/fs/erofs/Makefile index 5cdae21cb5af..46f2aa4ba46c 100644 --- a/drivers/staging/erofs/Makefile +++ b/fs/erofs/Makefile @@ -1,12 +1,10 @@ # SPDX-License-Identifier: GPL-2.0-only -EROFS_VERSION = "1.0pre1" +EROFS_VERSION = "1.0" ccflags-y += -DEROFS_VERSION=\"$(EROFS_VERSION)\" obj-$(CONFIG_EROFS_FS) += erofs.o -# staging requirement: to be self-contained in its own directory -ccflags-y += -I $(srctree)/$(src)/include erofs-objs := super.o inode.o data.o namei.o dir.o utils.o erofs-$(CONFIG_EROFS_FS_XATTR) += xattr.o erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o diff --git a/drivers/staging/erofs/compress.h b/fs/erofs/compress.h index 043013f9ef1b..07d279fd5d67 100644 --- a/drivers/staging/erofs/compress.h +++ b/fs/erofs/compress.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* - * linux/drivers/staging/erofs/compress.h - * * Copyright (C) 2019 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> diff --git a/drivers/staging/erofs/data.c b/fs/erofs/data.c index 72c4b4c5296b..0983807737fd 100644 --- a/drivers/staging/erofs/data.c +++ b/fs/erofs/data.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * linux/drivers/staging/erofs/data.c - * * Copyright (C) 2017-2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> @@ -29,7 +27,7 @@ static inline void read_endio(struct bio *bio) /* page is already locked */ DBG_BUGON(PageUptodate(page)); - if (unlikely(err)) + if (err) SetPageError(page); else SetPageUptodate(page); @@ -55,7 +53,7 @@ struct page *__erofs_get_meta_page(struct super_block *sb, repeat: page = find_or_create_page(mapping, blkaddr, gfp); - if (unlikely(!page)) { + if (!page) { DBG_BUGON(nofail); return ERR_PTR(-ENOMEM); } @@ -71,8 +69,7 @@ repeat: goto err_out; } - err = bio_add_page(bio, page, PAGE_SIZE, 0); - if (unlikely(err != PAGE_SIZE)) { + if (bio_add_page(bio, page, PAGE_SIZE, 0) != PAGE_SIZE) { err = -EFAULT; goto err_out; } @@ -83,7 +80,7 @@ repeat: lock_page(page); /* this page has been truncated by others */ - if (unlikely(page->mapping != mapping)) { + if (page->mapping != mapping) { unlock_repeat: unlock_page(page); put_page(page); @@ -91,7 +88,7 @@ unlock_repeat: } /* more likely a read error */ - if (unlikely(!PageUptodate(page))) { + if (!PageUptodate(page)) { if (io_retries) { --io_retries; goto unlock_repeat; @@ -122,7 +119,7 @@ static int erofs_map_blocks_flatmode(struct inode *inode, nblocks = DIV_ROUND_UP(inode->i_size, PAGE_SIZE); lastblk = nblocks - is_inode_flat_inline(inode); - if (unlikely(offset >= inode->i_size)) { + if (offset >= inode->i_size) { /* leave out-of-bound access unmapped */ map->m_flags = 0; map->m_plen = 0; @@ -172,7 +169,7 @@ err_out: int erofs_map_blocks(struct inode *inode, struct erofs_map_blocks *map, int flags) { - if (unlikely(is_inode_layout_compression(inode))) { + if (is_inode_layout_compression(inode)) { int err = z_erofs_map_blocks_iter(inode, map, flags); if (map->mpage) { @@ -220,11 +217,11 @@ submit_bio_retry: unsigned int blkoff; err = erofs_map_blocks(inode, &map, EROFS_GET_BLOCKS_RAW); - if (unlikely(err)) + if (err) goto err_out; /* zero out the holed page */ - if (unlikely(!(map.m_flags & EROFS_MAP_MAPPED))) { + if (!(map.m_flags & EROFS_MAP_MAPPED)) { zero_user_segment(page, 0, PAGE_SIZE); SetPageUptodate(page); @@ -317,7 +314,7 @@ has_updated: submit_bio_out: __submit_bio(bio, REQ_OP_READ, 0); - return unlikely(err) ? ERR_PTR(err) : NULL; + return err ? ERR_PTR(err) : NULL; } /* @@ -379,7 +376,7 @@ static int erofs_raw_access_readpages(struct file *filp, DBG_BUGON(!list_empty(pages)); /* the rare case (end in gaps) */ - if (unlikely(bio)) + if (bio) __submit_bio(bio, REQ_OP_READ, 0); return 0; } diff --git a/drivers/staging/erofs/decompressor.c b/fs/erofs/decompressor.c index 32a811ac704a..df349888f911 100644 --- a/drivers/staging/erofs/decompressor.c +++ b/fs/erofs/decompressor.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * linux/drivers/staging/erofs/decompressor.c - * * Copyright (C) 2019 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> @@ -80,7 +78,7 @@ static int lz4_prepare_destpages(struct z_erofs_decompress_req *rq, get_page(victim); } else { victim = erofs_allocpage(pagepool, GFP_KERNEL, false); - if (unlikely(!victim)) + if (!victim) return -ENOMEM; victim->mapping = Z_EROFS_MAPPING_STAGING; } diff --git a/drivers/staging/erofs/dir.c b/fs/erofs/dir.c index 01efc96e1212..6a5b43f7fb29 100644 --- a/drivers/staging/erofs/dir.c +++ b/fs/erofs/dir.c @@ -1,24 +1,11 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * linux/drivers/staging/erofs/dir.c - * * Copyright (C) 2017-2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> */ #include "internal.h" -static const unsigned char erofs_filetype_table[EROFS_FT_MAX] = { - [EROFS_FT_UNKNOWN] = DT_UNKNOWN, - [EROFS_FT_REG_FILE] = DT_REG, - [EROFS_FT_DIR] = DT_DIR, - [EROFS_FT_CHRDEV] = DT_CHR, - [EROFS_FT_BLKDEV] = DT_BLK, - [EROFS_FT_FIFO] = DT_FIFO, - [EROFS_FT_SOCK] = DT_SOCK, - [EROFS_FT_SYMLINK] = DT_LNK, -}; - static void debug_one_dentry(unsigned char d_type, const char *de_name, unsigned int de_namelen) { @@ -46,10 +33,7 @@ static int erofs_fill_dentries(struct inode *dir, struct dir_context *ctx, unsigned int de_namelen; unsigned char d_type; - if (de->file_type < EROFS_FT_MAX) - d_type = erofs_filetype_table[de->file_type]; - else - d_type = DT_UNKNOWN; + d_type = fs_ftype_to_dtype(de->file_type); nameoff = le16_to_cpu(de->nameoff); de_name = (char *)dentry_blk + nameoff; @@ -61,8 +45,8 @@ static int erofs_fill_dentries(struct inode *dir, struct dir_context *ctx, de_namelen = le16_to_cpu(de[1].nameoff) - nameoff; /* a corrupted entry is found */ - if (unlikely(nameoff + de_namelen > maxsize || - de_namelen > EROFS_NAME_LEN)) { + if (nameoff + de_namelen > maxsize || + de_namelen > EROFS_NAME_LEN) { errln("bogus dirent @ nid %llu", EROFS_V(dir)->nid); DBG_BUGON(1); return -EFSCORRUPTED; @@ -96,15 +80,22 @@ static int erofs_readdir(struct file *f, struct dir_context *ctx) unsigned int nameoff, maxsize; dentry_page = read_mapping_page(mapping, i, NULL); - if (IS_ERR(dentry_page)) - continue; + if (dentry_page == ERR_PTR(-ENOMEM)) { + err = -ENOMEM; + break; + } else if (IS_ERR(dentry_page)) { + errln("fail to readdir of logical block %u of nid %llu", + i, EROFS_V(dir)->nid); + err = -EFSCORRUPTED; + break; + } de = (struct erofs_dirent *)kmap(dentry_page); nameoff = le16_to_cpu(de->nameoff); - if (unlikely(nameoff < sizeof(struct erofs_dirent) || - nameoff >= PAGE_SIZE)) { + if (nameoff < sizeof(struct erofs_dirent) || + nameoff >= PAGE_SIZE) { errln("%s, invalid de[0].nameoff %u @ nid %llu", __func__, nameoff, EROFS_V(dir)->nid); err = -EFSCORRUPTED; @@ -115,11 +106,11 @@ static int erofs_readdir(struct file *f, struct dir_context *ctx) dirsize - ctx->pos + ofs, PAGE_SIZE); /* search dirents at the arbitrary position */ - if (unlikely(initial)) { + if (initial) { initial = false; ofs = roundup(ofs, sizeof(struct erofs_dirent)); - if (unlikely(ofs >= nameoff)) + if (ofs >= nameoff) goto skip_this; } @@ -132,7 +123,7 @@ skip_this: ctx->pos = blknr_to_addr(i) + ofs; - if (unlikely(err)) + if (err) break; ++i; ofs = 0; diff --git a/drivers/staging/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h index 8dc2a75e478f..afa7d45ca958 100644 --- a/drivers/staging/erofs/erofs_fs.h +++ b/fs/erofs/erofs_fs.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only OR Apache-2.0 */ /* - * linux/drivers/staging/erofs/erofs_fs.h - * * Copyright (C) 2017-2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> @@ -10,7 +8,6 @@ #define __EROFS_FS_H /* Enhanced(Extended) ROM File System */ -#define EROFS_SUPER_MAGIC_V1 0xE0F5E1E2 #define EROFS_SUPER_OFFSET 1024 /* @@ -282,18 +279,11 @@ struct erofs_dirent { __u8 reserved; /* 11, reserved */ } __packed; -/* file types used in inode_info->flags */ -enum { - EROFS_FT_UNKNOWN, - EROFS_FT_REG_FILE, - EROFS_FT_DIR, - EROFS_FT_CHRDEV, - EROFS_FT_BLKDEV, - EROFS_FT_FIFO, - EROFS_FT_SOCK, - EROFS_FT_SYMLINK, - EROFS_FT_MAX -}; +/* + * EROFS file types should match generic FT_* types and + * it seems no need to add BUILD_BUG_ONs since potential + * unmatchness will break other fses as well... + */ #define EROFS_NAME_LEN 255 diff --git a/drivers/staging/erofs/inode.c b/fs/erofs/inode.c index cbc2c342a37f..e7c190cf101a 100644 --- a/drivers/staging/erofs/inode.c +++ b/fs/erofs/inode.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * linux/drivers/staging/erofs/inode.c - * * Copyright (C) 2017-2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> @@ -20,7 +18,7 @@ static int read_inode(struct inode *inode, void *data) vi->datamode = __inode_data_mapping(advise); - if (unlikely(vi->datamode >= EROFS_INODE_LAYOUT_MAX)) { + if (vi->datamode >= EROFS_INODE_LAYOUT_MAX) { errln("unsupported data mapping %u of nid %llu", vi->datamode, vi->nid); DBG_BUGON(1); @@ -135,13 +133,13 @@ static int fill_inline_data(struct inode *inode, void *data, if (S_ISLNK(inode->i_mode) && inode->i_size < PAGE_SIZE) { char *lnk = erofs_kmalloc(sbi, inode->i_size + 1, GFP_KERNEL); - if (unlikely(!lnk)) + if (!lnk) return -ENOMEM; m_pofs += vi->inode_isize + vi->xattr_isize; /* inline symlink data shouldn't across page boundary as well */ - if (unlikely(m_pofs + inode->i_size > PAGE_SIZE)) { + if (m_pofs + inode->i_size > PAGE_SIZE) { kfree(lnk); errln("inline data cross block boundary @ nid %llu", vi->nid); @@ -270,7 +268,7 @@ struct inode *erofs_iget(struct super_block *sb, { struct inode *inode = erofs_iget_locked(sb, nid); - if (unlikely(!inode)) + if (!inode) return ERR_PTR(-ENOMEM); if (inode->i_state & I_NEW) { @@ -280,7 +278,7 @@ struct inode *erofs_iget(struct super_block *sb, vi->nid = nid; err = fill_inode(inode, isdir); - if (likely(!err)) + if (!err) unlock_new_inode(inode); else { iget_failed(inode); diff --git a/drivers/staging/erofs/internal.h b/fs/erofs/internal.h index 0e8d58546c52..141ea424587d 100644 --- a/drivers/staging/erofs/internal.h +++ b/fs/erofs/internal.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* - * linux/drivers/staging/erofs/internal.h - * * Copyright (C) 2017-2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> @@ -15,6 +13,7 @@ #include <linux/pagemap.h> #include <linux/bio.h> #include <linux/buffer_head.h> +#include <linux/magic.h> #include <linux/slab.h> #include <linux/vmalloc.h> #include "erofs_fs.h" @@ -425,7 +424,7 @@ static inline struct bio *erofs_grab_bio(struct super_block *sb, do { if (nr_pages == 1) { bio = bio_alloc(gfp | (nofail ? __GFP_NOFAIL : 0), 1); - if (unlikely(!bio)) { + if (!bio) { DBG_BUGON(nofail); return ERR_PTR(-ENOMEM); } @@ -433,7 +432,7 @@ static inline struct bio *erofs_grab_bio(struct super_block *sb, } bio = bio_alloc(gfp, nr_pages); nr_pages /= 2; - } while (unlikely(!bio)); + } while (!bio); bio->bi_end_io = endio; bio_set_dev(bio, sb->s_bdev); diff --git a/drivers/staging/erofs/namei.c b/fs/erofs/namei.c index c0963f5a2d22..c1068ad0535e 100644 --- a/drivers/staging/erofs/namei.c +++ b/fs/erofs/namei.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * linux/drivers/staging/erofs/namei.c - * * Copyright (C) 2017-2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> @@ -66,7 +64,7 @@ static struct erofs_dirent *find_target_dirent(struct erofs_qstr *name, unsigned int matched = min(startprfx, endprfx); struct erofs_qstr dname = { .name = data + nameoff, - .end = unlikely(mid >= ndirents - 1) ? + .end = mid >= ndirents - 1 ? data + dirblksize : data + nameoff_from_disk(de[mid + 1].nameoff, dirblksize) @@ -75,7 +73,7 @@ static struct erofs_dirent *find_target_dirent(struct erofs_qstr *name, /* string comparison without already matched prefix */ int ret = dirnamecmp(name, &dname, &matched); - if (unlikely(!ret)) { + if (!ret) { return de + mid; } else if (ret > 0) { head = mid + 1; @@ -115,7 +113,7 @@ static struct page *find_target_block_classic(struct inode *dir, unsigned int matched; struct erofs_qstr dname; - if (unlikely(!ndirents)) { + if (!ndirents) { kunmap_atomic(de); put_page(page); errln("corrupted dir block %d @ nid %llu", @@ -139,7 +137,7 @@ static struct page *find_target_block_classic(struct inode *dir, diff = dirnamecmp(name, &dname, &matched); kunmap_atomic(de); - if (unlikely(!diff)) { + if (!diff) { *_ndirents = 0; goto out; } else if (diff > 0) { @@ -176,7 +174,7 @@ int erofs_namei(struct inode *dir, struct erofs_dirent *de; struct erofs_qstr qn; - if (unlikely(!dir->i_size)) + if (!dir->i_size) return -ENOENT; qn.name = name->name; @@ -223,7 +221,7 @@ static struct dentry *erofs_lookup(struct inode *dir, trace_erofs_lookup(dir, dentry, flags); /* file name exceeds fs limit */ - if (unlikely(dentry->d_name.len > EROFS_NAME_LEN)) + if (dentry->d_name.len > EROFS_NAME_LEN) return ERR_PTR(-ENAMETOOLONG); /* false uninitialized warnings on gcc 4.8.x */ @@ -232,12 +230,12 @@ static struct dentry *erofs_lookup(struct inode *dir, if (err == -ENOENT) { /* negative dentry */ inode = NULL; - } else if (unlikely(err)) { + } else if (err) { inode = ERR_PTR(err); } else { debugln("%s, %s (nid %llu) found, d_type %u", __func__, dentry->d_name.name, nid, d_type); - inode = erofs_iget(dir->i_sb, nid, d_type == EROFS_FT_DIR); + inode = erofs_iget(dir->i_sb, nid, d_type == FT_DIR); } return d_splice_alias(inode, dentry); } diff --git a/drivers/staging/erofs/super.c b/fs/erofs/super.c index f65a1ff9f42f..6603f0ba8905 100644 --- a/drivers/staging/erofs/super.c +++ b/fs/erofs/super.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * linux/drivers/staging/erofs/super.c - * * Copyright (C) 2017-2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> @@ -109,7 +107,7 @@ static int superblock_read(struct super_block *sb) blkszbits = layout->blkszbits; /* 9(512 bytes) + LOG_SECTORS_PER_BLOCK == LOG_BLOCK_SIZE */ - if (unlikely(blkszbits != LOG_BLOCK_SIZE)) { + if (blkszbits != LOG_BLOCK_SIZE) { errln("blksize %u isn't supported on this platform", 1 << blkszbits); goto out; @@ -131,9 +129,14 @@ static int superblock_read(struct super_block *sb) sbi->build_time_nsec = le32_to_cpu(layout->build_time_nsec); memcpy(&sb->s_uuid, layout->uuid, sizeof(layout->uuid)); - memcpy(sbi->volume_name, layout->volume_name, - sizeof(layout->volume_name)); + ret = strscpy(sbi->volume_name, layout->volume_name, + sizeof(layout->volume_name)); + if (ret < 0) { /* -E2BIG */ + errln("bad volume name without NIL terminator"); + ret = -EFSCORRUPTED; + goto out; + } ret = 0; out: brelse(bh); @@ -376,7 +379,7 @@ static int erofs_init_managed_cache(struct super_block *sb) struct erofs_sb_info *const sbi = EROFS_SB(sb); struct inode *const inode = new_inode(sb); - if (unlikely(!inode)) + if (!inode) return -ENOMEM; set_nlink(inode, 1); @@ -403,13 +406,13 @@ static int erofs_fill_super(struct super_block *sb, void *data, int silent) sb->s_magic = EROFS_SUPER_MAGIC; - if (unlikely(!sb_set_blocksize(sb, EROFS_BLKSIZ))) { + if (!sb_set_blocksize(sb, EROFS_BLKSIZ)) { errln("failed to set erofs blksize"); return -EINVAL; } sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); - if (unlikely(!sbi)) + if (!sbi) return -ENOMEM; sb->s_fs_info = sbi; @@ -430,7 +433,7 @@ static int erofs_fill_super(struct super_block *sb, void *data, int silent) default_options(sbi); err = parse_options(sb, data); - if (unlikely(err)) + if (err) return err; if (!silent) @@ -450,7 +453,7 @@ static int erofs_fill_super(struct super_block *sb, void *data, int silent) if (IS_ERR(inode)) return PTR_ERR(inode); - if (unlikely(!S_ISDIR(inode->i_mode))) { + if (!S_ISDIR(inode->i_mode)) { errln("rootino(nid %llu) is not a directory(i_mode %o)", ROOT_NID(sbi), inode->i_mode); iput(inode); @@ -458,13 +461,13 @@ static int erofs_fill_super(struct super_block *sb, void *data, int silent) } sb->s_root = d_make_root(inode); - if (unlikely(!sb->s_root)) + if (!sb->s_root) return -ENOMEM; erofs_shrinker_register(sb); /* sb->s_umount is already locked, SB_ACTIVE and SB_BORN are not set */ err = erofs_init_managed_cache(sb); - if (unlikely(err)) + if (err) return err; if (!silent) diff --git a/drivers/staging/erofs/tagptr.h b/fs/erofs/tagptr.h index a72897c86744..a72897c86744 100644 --- a/drivers/staging/erofs/tagptr.h +++ b/fs/erofs/tagptr.h diff --git a/drivers/staging/erofs/utils.c b/fs/erofs/utils.c index 814c2ee037ae..d92b3e753a6f 100644 --- a/drivers/staging/erofs/utils.c +++ b/fs/erofs/utils.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * linux/drivers/staging/erofs/utils.c - * * Copyright (C) 2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> @@ -48,14 +46,14 @@ static int erofs_workgroup_get(struct erofs_workgroup *grp) repeat: o = erofs_wait_on_workgroup_freezed(grp); - if (unlikely(o <= 0)) + if (o <= 0) return -1; - if (unlikely(atomic_cmpxchg(&grp->refcount, o, o + 1) != o)) + if (atomic_cmpxchg(&grp->refcount, o, o + 1) != o) goto repeat; /* decrease refcount paired by erofs_workgroup_put */ - if (unlikely(o == 1)) + if (o == 1) atomic_long_dec(&erofs_global_shrink_cnt); return 0; } @@ -93,7 +91,7 @@ int erofs_register_workgroup(struct super_block *sb, int err; /* grp shouldn't be broken or used before */ - if (unlikely(atomic_read(&grp->refcount) != 1)) { + if (atomic_read(&grp->refcount) != 1) { DBG_BUGON(1); return -EINVAL; } @@ -115,7 +113,7 @@ int erofs_register_workgroup(struct super_block *sb, __erofs_workgroup_get(grp); err = radix_tree_insert(&sbi->workstn_tree, grp->index, grp); - if (unlikely(err)) + if (err) /* * it's safe to decrease since the workgroup isn't visible * and refcount >= 2 (cannot be freezed). @@ -214,7 +212,7 @@ repeat: continue; ++freed; - if (unlikely(!--nr_shrink)) + if (!--nr_shrink) break; } xa_unlock(&sbi->workstn_tree); diff --git a/drivers/staging/erofs/xattr.c b/fs/erofs/xattr.c index e7e5840e3f9d..d80f61dde72f 100644 --- a/drivers/staging/erofs/xattr.c +++ b/fs/erofs/xattr.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * linux/drivers/staging/erofs/xattr.c - * * Copyright (C) 2017-2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> @@ -21,7 +19,7 @@ struct xattr_iter { static inline void xattr_iter_end(struct xattr_iter *it, bool atomic) { /* the only user of kunmap() is 'init_inode_xattrs' */ - if (unlikely(!atomic)) + if (!atomic) kunmap(it->page); else kunmap_atomic(it->kaddr); @@ -74,7 +72,7 @@ static int init_inode_xattrs(struct inode *inode) ret = -EOPNOTSUPP; goto out_unlock; } else if (vi->xattr_isize < sizeof(struct erofs_xattr_ibody_header)) { - if (unlikely(vi->xattr_isize)) { + if (vi->xattr_isize) { errln("bogus xattr ibody @ nid %llu", vi->nid); DBG_BUGON(1); ret = -EFSCORRUPTED; @@ -114,7 +112,7 @@ static int init_inode_xattrs(struct inode *inode) it.ofs += sizeof(struct erofs_xattr_ibody_header); for (i = 0; i < vi->xattr_shared_count; ++i) { - if (unlikely(it.ofs >= EROFS_BLKSIZ)) { + if (it.ofs >= EROFS_BLKSIZ) { /* cannot be unaligned */ DBG_BUGON(it.ofs != EROFS_BLKSIZ); xattr_iter_end(&it, atomic_map); @@ -191,7 +189,7 @@ static int inline_xattr_iter_begin(struct xattr_iter *it, unsigned int xattr_header_sz, inline_xattr_ofs; xattr_header_sz = inlinexattr_header_size(inode); - if (unlikely(xattr_header_sz >= vi->xattr_isize)) { + if (xattr_header_sz >= vi->xattr_isize) { DBG_BUGON(xattr_header_sz > vi->xattr_isize); return -ENOATTR; } @@ -236,7 +234,7 @@ static int xattr_foreach(struct xattr_iter *it, unsigned int entry_sz = EROFS_XATTR_ENTRY_SIZE(&entry); /* xattr on-disk corruption: xattr entry beyond xattr_isize */ - if (unlikely(*tlimit < entry_sz)) { + if (*tlimit < entry_sz) { DBG_BUGON(1); return -EFSCORRUPTED; } @@ -438,7 +436,7 @@ int erofs_getxattr(struct inode *inode, int index, int ret; struct getxattr_iter it; - if (unlikely(!name)) + if (!name) return -EINVAL; ret = init_inode_xattrs(inode); diff --git a/drivers/staging/erofs/xattr.h b/fs/erofs/xattr.h index e20249647541..c5ca47d814dd 100644 --- a/drivers/staging/erofs/xattr.h +++ b/fs/erofs/xattr.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* - * linux/drivers/staging/erofs/xattr.h - * * Copyright (C) 2017-2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> diff --git a/drivers/staging/erofs/zdata.c b/fs/erofs/zdata.c index 2d7aaf98f7de..653bde0a619a 100644 --- a/drivers/staging/erofs/zdata.c +++ b/fs/erofs/zdata.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * linux/drivers/staging/erofs/zdata.c - * * Copyright (C) 2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> @@ -132,7 +130,7 @@ enum z_erofs_collectmode { struct z_erofs_collector { struct z_erofs_pagevec_ctor vector; - struct z_erofs_pcluster *pcl; + struct z_erofs_pcluster *pcl, *tailpcl; struct z_erofs_collection *cl; struct page **compressedpages; z_erofs_next_pcluster_t owned_head; @@ -232,7 +230,7 @@ int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi, if (!trylock_page(page)) return -EBUSY; - if (unlikely(page->mapping != mapping)) + if (page->mapping != mapping) continue; /* barrier is implied in the following 'unlock_page' */ @@ -353,18 +351,25 @@ static struct z_erofs_collection *cllookup(struct z_erofs_collector *clt, return NULL; pcl = container_of(grp, struct z_erofs_pcluster, obj); + if (clt->owned_head == &pcl->next || pcl == clt->tailpcl) { + DBG_BUGON(1); + erofs_workgroup_put(grp); + return ERR_PTR(-EFSCORRUPTED); + } cl = z_erofs_primarycollection(pcl); - if (unlikely(cl->pageofs != (map->m_la & ~PAGE_MASK))) { + if (cl->pageofs != (map->m_la & ~PAGE_MASK)) { DBG_BUGON(1); - return ERR_PTR(-EIO); + erofs_workgroup_put(grp); + return ERR_PTR(-EFSCORRUPTED); } length = READ_ONCE(pcl->length); if (length & Z_EROFS_PCLUSTER_FULL_LENGTH) { if ((map->m_llen << Z_EROFS_PCLUSTER_LENGTH_BIT) > length) { DBG_BUGON(1); - return ERR_PTR(-EIO); + erofs_workgroup_put(grp); + return ERR_PTR(-EFSCORRUPTED); } } else { unsigned int llen = map->m_llen << Z_EROFS_PCLUSTER_LENGTH_BIT; @@ -379,7 +384,13 @@ static struct z_erofs_collection *cllookup(struct z_erofs_collector *clt, } } mutex_lock(&cl->lock); + /* used to check tail merging loop due to corrupted images */ + if (clt->owned_head == Z_EROFS_PCLUSTER_TAIL) + clt->tailpcl = pcl; clt->mode = try_to_claim_pcluster(pcl, &clt->owned_head); + /* clean tailpcl if the current owned_head is Z_EROFS_PCLUSTER_TAIL */ + if (clt->owned_head == Z_EROFS_PCLUSTER_TAIL) + clt->tailpcl = NULL; clt->pcl = pcl; clt->cl = cl; return cl; @@ -395,7 +406,7 @@ static struct z_erofs_collection *clregister(struct z_erofs_collector *clt, /* no available workgroup, let's allocate one */ pcl = kmem_cache_alloc(pcluster_cachep, GFP_NOFS); - if (unlikely(!pcl)) + if (!pcl) return ERR_PTR(-ENOMEM); init_always(pcl); @@ -432,6 +443,9 @@ static struct z_erofs_collection *clregister(struct z_erofs_collector *clt, kmem_cache_free(pcluster_cachep, pcl); return ERR_PTR(-EAGAIN); } + /* used to check tail merging loop due to corrupted images */ + if (clt->owned_head == Z_EROFS_PCLUSTER_TAIL) + clt->tailpcl = pcl; clt->owned_head = &pcl->next; clt->pcl = pcl; clt->cl = cl; @@ -460,7 +474,7 @@ repeat: if (!cl) { cl = clregister(clt, inode, map); - if (unlikely(cl == ERR_PTR(-EAGAIN))) + if (cl == ERR_PTR(-EAGAIN)) goto repeat; } @@ -593,15 +607,15 @@ repeat: map->m_la = offset + cur; map->m_llen = 0; err = z_erofs_map_blocks_iter(inode, map, 0); - if (unlikely(err)) + if (err) goto err_out; restart_now: - if (unlikely(!(map->m_flags & EROFS_MAP_MAPPED))) + if (!(map->m_flags & EROFS_MAP_MAPPED)) goto hitted; err = z_erofs_collector_begin(clt, inode, map); - if (unlikely(err)) + if (err) goto err_out; /* preload all compressed pages (maybe downgrade role if necessary) */ @@ -616,7 +630,7 @@ restart_now: tight &= (clt->mode >= COLLECT_PRIMARY_HOOKED); hitted: cur = end - min_t(unsigned int, offset + end - map->m_la, end); - if (unlikely(!(map->m_flags & EROFS_MAP_MAPPED))) { + if (!(map->m_flags & EROFS_MAP_MAPPED)) { zero_user_segment(page, cur, end); goto next_part; } @@ -639,11 +653,11 @@ retry: err = z_erofs_attach_page(clt, newpage, Z_EROFS_PAGE_TYPE_EXCLUSIVE); - if (likely(!err)) + if (!err) goto retry; } - if (unlikely(err)) + if (err) goto err_out; index = page->index - (map->m_la >> PAGE_SHIFT); @@ -709,7 +723,7 @@ static inline void z_erofs_vle_read_endio(struct bio *bio) DBG_BUGON(PageUptodate(page)); DBG_BUGON(!page->mapping); - if (unlikely(!sbi && !z_erofs_page_is_staging(page))) { + if (!sbi && !z_erofs_page_is_staging(page)) { sbi = EROFS_SB(page->mapping->host->i_sb); if (time_to_inject(sbi, FAULT_READ_IO)) { @@ -722,7 +736,7 @@ static inline void z_erofs_vle_read_endio(struct bio *bio) if (sbi) cachemngd = erofs_page_is_managed(sbi, page); - if (unlikely(err)) + if (err) SetPageError(page); else if (cachemngd) SetPageUptodate(page); @@ -758,7 +772,7 @@ static int z_erofs_decompress_pcluster(struct super_block *sb, mutex_lock(&cl->lock); nr_pages = cl->nr_pages; - if (likely(nr_pages <= Z_EROFS_VMAP_ONSTACK_PAGES)) { + if (nr_pages <= Z_EROFS_VMAP_ONSTACK_PAGES) { pages = pages_onstack; } else if (nr_pages <= Z_EROFS_VMAP_GLOBAL_PAGES && mutex_trylock(&z_pagemap_global_lock)) { @@ -773,7 +787,7 @@ static int z_erofs_decompress_pcluster(struct super_block *sb, gfp_flags); /* fallback to global pagemap for the lowmem scenario */ - if (unlikely(!pages)) { + if (!pages) { mutex_lock(&z_pagemap_global_lock); pages = z_pagemap_global; } @@ -782,6 +796,7 @@ static int z_erofs_decompress_pcluster(struct super_block *sb, for (i = 0; i < nr_pages; ++i) pages[i] = NULL; + err = 0; z_erofs_pagevec_ctor_init(&ctor, Z_EROFS_NR_INLINE_PAGEVECS, cl->pagevec, 0); @@ -803,8 +818,17 @@ static int z_erofs_decompress_pcluster(struct super_block *sb, pagenr = z_erofs_onlinepage_index(page); DBG_BUGON(pagenr >= nr_pages); - DBG_BUGON(pages[pagenr]); + /* + * currently EROFS doesn't support multiref(dedup), + * so here erroring out one multiref page. + */ + if (pages[pagenr]) { + DBG_BUGON(1); + SetPageError(pages[pagenr]); + z_erofs_onlinepage_endio(pages[pagenr]); + err = -EFSCORRUPTED; + } pages[pagenr] = page; } z_erofs_pagevec_ctor_exit(&ctor, true); @@ -812,7 +836,6 @@ static int z_erofs_decompress_pcluster(struct super_block *sb, overlapped = false; compressed_pages = pcl->compressed_pages; - err = 0; for (i = 0; i < clusterpages; ++i) { unsigned int pagenr; @@ -824,7 +847,7 @@ static int z_erofs_decompress_pcluster(struct super_block *sb, if (!z_erofs_page_is_staging(page)) { if (erofs_page_is_managed(sbi, page)) { - if (unlikely(!PageUptodate(page))) + if (!PageUptodate(page)) err = -EIO; continue; } @@ -836,20 +859,25 @@ static int z_erofs_decompress_pcluster(struct super_block *sb, pagenr = z_erofs_onlinepage_index(page); DBG_BUGON(pagenr >= nr_pages); - DBG_BUGON(pages[pagenr]); + if (pages[pagenr]) { + DBG_BUGON(1); + SetPageError(pages[pagenr]); + z_erofs_onlinepage_endio(pages[pagenr]); + err = -EFSCORRUPTED; + } pages[pagenr] = page; overlapped = true; } /* PG_error needs checking for inplaced and staging pages */ - if (unlikely(PageError(page))) { + if (PageError(page)) { DBG_BUGON(PageUptodate(page)); err = -EIO; } } - if (unlikely(err)) + if (err) goto out; llen = pcl->length >> Z_EROFS_PCLUSTER_LENGTH_BIT; @@ -898,7 +926,7 @@ out: if (z_erofs_put_stagingpage(pagepool, page)) continue; - if (unlikely(err < 0)) + if (err < 0) SetPageError(page); z_erofs_onlinepage_endio(page); @@ -906,7 +934,7 @@ out: if (pages == z_pagemap_global) mutex_unlock(&z_pagemap_global_lock); - else if (unlikely(pages != pages_onstack)) + else if (pages != pages_onstack) kvfree(pages); cl->nr_pages = 0; @@ -1184,7 +1212,7 @@ static bool z_erofs_vle_submit_all(struct super_block *sb, bool force_submit = false; unsigned int nr_bios; - if (unlikely(owned_head == Z_EROFS_PCLUSTER_TAIL)) + if (owned_head == Z_EROFS_PCLUSTER_TAIL) return false; force_submit = false; @@ -1307,19 +1335,18 @@ static int z_erofs_vle_normalaccess_readpage(struct file *file, err = z_erofs_do_read_page(&f, page, &pagepool); (void)z_erofs_collector_end(&f.clt); - if (err) { + /* if some compressed cluster ready, need submit them anyway */ + z_erofs_submit_and_unzip(inode->i_sb, &f.clt, &pagepool, true); + + if (err) errln("%s, failed to read, err [%d]", __func__, err); - goto out; - } - z_erofs_submit_and_unzip(inode->i_sb, &f.clt, &pagepool, true); -out: if (f.map.mpage) put_page(f.map.mpage); /* clean up the remaining free pages */ put_pages_list(&pagepool); - return 0; + return err; } static bool should_decompress_synchronously(struct erofs_sb_info *sbi, diff --git a/drivers/staging/erofs/zdata.h b/fs/erofs/zdata.h index e11fe1959ca2..4fc547bc01f9 100644 --- a/drivers/staging/erofs/zdata.h +++ b/fs/erofs/zdata.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* - * linux/drivers/staging/erofs/zdata.h - * * Copyright (C) 2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> diff --git a/drivers/staging/erofs/zmap.c b/fs/erofs/zmap.c index b61b9b5950ac..850e0e3d57a8 100644 --- a/drivers/staging/erofs/zmap.c +++ b/fs/erofs/zmap.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * linux/drivers/staging/erofs/zmap.c - * * Copyright (C) 2018-2019 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> @@ -85,12 +83,11 @@ static int fill_inode_lazy(struct inode *inode) vi->z_physical_clusterbits[1] = vi->z_logical_clusterbits + ((h->h_clusterbits >> 5) & 7); + set_bit(EROFS_V_Z_INITED_BIT, &vi->flags); unmap_done: kunmap_atomic(kaddr); unlock_page(page); put_page(page); - - set_bit(EROFS_V_Z_INITED_BIT, &vi->flags); out_unlock: clear_and_wake_up_bit(EROFS_V_BL_Z_BIT, &vi->flags); return err; @@ -351,6 +348,12 @@ static int vle_extent_lookback(struct z_erofs_maprecorder *m, switch (m->type) { case Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD: + if (!m->delta[0]) { + errln("invalid lookback distance 0 at nid %llu", + vi->nid); + DBG_BUGON(1); + return -EFSCORRUPTED; + } return vle_extent_lookback(m, m->delta[0]); case Z_EROFS_VLE_CLUSTER_TYPE_PLAIN: map->m_flags &= ~EROFS_MAP_ZIPPED; @@ -383,7 +386,7 @@ int z_erofs_map_blocks_iter(struct inode *inode, trace_z_erofs_map_blocks_iter_enter(inode, map, flags); /* when trying to read beyond EOF, leave it unmapped */ - if (unlikely(map->m_la >= inode->i_size)) { + if (map->m_la >= inode->i_size) { map->m_llen = map->m_la + 1 - inode->i_size; map->m_la = inode->i_size; map->m_flags = 0; @@ -417,7 +420,7 @@ int z_erofs_map_blocks_iter(struct inode *inode, break; } /* m.lcn should be >= 1 if endoff < m.clusterofs */ - if (unlikely(!m.lcn)) { + if (!m.lcn) { errln("invalid logical cluster 0 at nid %llu", vi->nid); err = -EFSCORRUPTED; @@ -430,7 +433,7 @@ int z_erofs_map_blocks_iter(struct inode *inode, case Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD: /* get the correspoinding first chunk */ err = vle_extent_lookback(&m, m.delta[0]); - if (unlikely(err)) + if (err) goto unmap_out; break; default: diff --git a/drivers/staging/erofs/zpvec.h b/fs/erofs/zpvec.h index 9798f5627786..58556903aa94 100644 --- a/drivers/staging/erofs/zpvec.h +++ b/fs/erofs/zpvec.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* - * linux/drivers/staging/erofs/zpvec.h - * * Copyright (C) 2018 HUAWEI, Inc. * http://www.huawei.com/ * Created by Gao Xiang <gaoxiang25@huawei.com> @@ -113,11 +111,11 @@ static inline bool z_erofs_pagevec_enqueue(struct z_erofs_pagevec_ctor *ctor, bool *occupied) { *occupied = false; - if (unlikely(!ctor->next && type)) + if (!ctor->next && type) if (ctor->index + 1 == ctor->nr) return false; - if (unlikely(ctor->index >= ctor->nr)) + if (ctor->index >= ctor->nr) z_erofs_pagevec_ctor_pagedown(ctor, false); /* exclusive page type must be 0 */ @@ -139,7 +137,7 @@ z_erofs_pagevec_dequeue(struct z_erofs_pagevec_ctor *ctor, { erofs_vtptr_t t; - if (unlikely(ctor->index >= ctor->nr)) { + if (ctor->index >= ctor->nr) { DBG_BUGON(!ctor->next); z_erofs_pagevec_ctor_pagedown(ctor, true); } diff --git a/fs/io_uring.c b/fs/io_uring.c index d542f1cf4428..24bbe3cb7ad4 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -1097,10 +1097,8 @@ static int io_import_fixed(struct io_ring_ctx *ctx, int rw, iter->bvec = bvec + seg_skip; iter->nr_segs -= seg_skip; - iter->count -= (seg_skip << PAGE_SHIFT); + iter->count -= bvec->bv_len + offset; iter->iov_offset = offset & ~PAGE_MASK; - if (iter->iov_offset) - iter->count -= iter->iov_offset; } } @@ -2025,6 +2023,15 @@ static int io_queue_sqe(struct io_ring_ctx *ctx, struct io_kiocb *req, { int ret; + ret = io_req_defer(ctx, req, s->sqe); + if (ret) { + if (ret != -EIOCBQUEUED) { + io_free_req(req); + io_cqring_add_event(ctx, s->sqe->user_data, ret); + } + return 0; + } + ret = __io_submit_sqe(ctx, req, s, true); if (ret == -EAGAIN && !(req->flags & REQ_F_NOWAIT)) { struct io_uring_sqe *sqe_copy; @@ -2097,13 +2104,6 @@ err: return; } - ret = io_req_defer(ctx, req, s->sqe); - if (ret) { - if (ret != -EIOCBQUEUED) - goto err_req; - return; - } - /* * If we already have a head request, queue this one for async * submittal once the head completes. If we don't have a head but diff --git a/fs/seq_file.c b/fs/seq_file.c index 04f09689cd6d..1600034a929b 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -119,6 +119,7 @@ static int traverse(struct seq_file *m, loff_t offset) } if (seq_has_overflowed(m)) goto Eoverflow; + p = m->op->next(m, p, &m->index); if (pos + m->count > offset) { m->from = offset - pos; m->count -= m->from; @@ -126,7 +127,6 @@ static int traverse(struct seq_file *m, loff_t offset) } pos += m->count; m->count = 0; - p = m->op->next(m, p, &m->index); if (pos == offset) break; } diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index baf0b72c0a37..07aad70f3931 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -3835,15 +3835,28 @@ xfs_bmapi_read( XFS_STATS_INC(mp, xs_blk_mapr); ifp = XFS_IFORK_PTR(ip, whichfork); + if (!ifp) { + /* No CoW fork? Return a hole. */ + if (whichfork == XFS_COW_FORK) { + mval->br_startoff = bno; + mval->br_startblock = HOLESTARTBLOCK; + mval->br_blockcount = len; + mval->br_state = XFS_EXT_NORM; + *nmap = 1; + return 0; + } - /* No CoW fork? Return a hole. */ - if (whichfork == XFS_COW_FORK && !ifp) { - mval->br_startoff = bno; - mval->br_startblock = HOLESTARTBLOCK; - mval->br_blockcount = len; - mval->br_state = XFS_EXT_NORM; - *nmap = 1; - return 0; + /* + * A missing attr ifork implies that the inode says we're in + * extents or btree format but failed to pass the inode fork + * verifier while trying to load it. Treat that as a file + * corruption too. + */ +#ifdef DEBUG + xfs_alert(mp, "%s: inode %llu missing fork %d", + __func__, ip->i_ino, whichfork); +#endif /* DEBUG */ + return -EFSCORRUPTED; } if (!(ifp->if_flags & XFS_IFEXTENTS)) { diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c index d1c77fd0815d..0bf56e94bfe9 100644 --- a/fs/xfs/libxfs/xfs_da_btree.c +++ b/fs/xfs/libxfs/xfs_da_btree.c @@ -487,10 +487,8 @@ xfs_da3_split( ASSERT(state->path.active == 0); oldblk = &state->path.blk[0]; error = xfs_da3_root_split(state, oldblk, addblk); - if (error) { - addblk->bp = NULL; - return error; /* GROT: dir is inconsistent */ - } + if (error) + goto out; /* * Update pointers to the node which used to be block 0 and just got @@ -505,7 +503,10 @@ xfs_da3_split( */ node = oldblk->bp->b_addr; if (node->hdr.info.forw) { - ASSERT(be32_to_cpu(node->hdr.info.forw) == addblk->blkno); + if (be32_to_cpu(node->hdr.info.forw) != addblk->blkno) { + error = -EFSCORRUPTED; + goto out; + } node = addblk->bp->b_addr; node->hdr.info.back = cpu_to_be32(oldblk->blkno); xfs_trans_log_buf(state->args->trans, addblk->bp, @@ -514,15 +515,19 @@ xfs_da3_split( } node = oldblk->bp->b_addr; if (node->hdr.info.back) { - ASSERT(be32_to_cpu(node->hdr.info.back) == addblk->blkno); + if (be32_to_cpu(node->hdr.info.back) != addblk->blkno) { + error = -EFSCORRUPTED; + goto out; + } node = addblk->bp->b_addr; node->hdr.info.forw = cpu_to_be32(oldblk->blkno); xfs_trans_log_buf(state->args->trans, addblk->bp, XFS_DA_LOGRANGE(node, &node->hdr.info, sizeof(node->hdr.info))); } +out: addblk->bp = NULL; - return 0; + return error; } /* diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c index afcc6642690a..1fc44efc344d 100644 --- a/fs/xfs/libxfs/xfs_dir2_node.c +++ b/fs/xfs/libxfs/xfs_dir2_node.c @@ -741,7 +741,8 @@ xfs_dir2_leafn_lookup_for_entry( ents = dp->d_ops->leaf_ents_p(leaf); xfs_dir3_leaf_check(dp, bp); - ASSERT(leafhdr.count > 0); + if (leafhdr.count <= 0) + return -EFSCORRUPTED; /* * Look up the hash value in the leaf entries. diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 00e9f5c388d3..7fc3c1ad36bc 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -429,10 +429,7 @@ xfs_log_reserve( ASSERT(*ticp == NULL); tic = xlog_ticket_alloc(log, unit_bytes, cnt, client, permanent, - KM_SLEEP | KM_MAYFAIL); - if (!tic) - return -ENOMEM; - + KM_SLEEP); *ticp = tic; xlog_grant_push_ail(log, tic->t_cnt ? tic->t_unit_res * tic->t_cnt diff --git a/include/asm-generic/5level-fixup.h b/include/asm-generic/5level-fixup.h index bb6cb347018c..f6947da70d71 100644 --- a/include/asm-generic/5level-fixup.h +++ b/include/asm-generic/5level-fixup.h @@ -19,9 +19,24 @@ #define p4d_alloc(mm, pgd, address) (pgd) #define p4d_offset(pgd, start) (pgd) -#define p4d_none(p4d) 0 -#define p4d_bad(p4d) 0 -#define p4d_present(p4d) 1 + +#ifndef __ASSEMBLY__ +static inline int p4d_none(p4d_t p4d) +{ + return 0; +} + +static inline int p4d_bad(p4d_t p4d) +{ + return 0; +} + +static inline int p4d_present(p4d_t p4d) +{ + return 1; +} +#endif + #define p4d_ERROR(p4d) do { } while (0) #define p4d_clear(p4d) pgd_clear(p4d) #define p4d_val(p4d) pgd_val(p4d) diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 1b1fa1557e68..feff3fe4467e 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -311,7 +311,6 @@ enum req_flag_bits { __REQ_RAHEAD, /* read ahead, can fail anytime */ __REQ_BACKGROUND, /* background IO */ __REQ_NOWAIT, /* Don't wait if request will block */ - __REQ_NOWAIT_INLINE, /* Return would-block error inline */ /* * When a shared kthread needs to issue a bio for a cgroup, doing * so synchronously can lead to priority inversions as the kthread @@ -346,7 +345,6 @@ enum req_flag_bits { #define REQ_RAHEAD (1ULL << __REQ_RAHEAD) #define REQ_BACKGROUND (1ULL << __REQ_BACKGROUND) #define REQ_NOWAIT (1ULL << __REQ_NOWAIT) -#define REQ_NOWAIT_INLINE (1ULL << __REQ_NOWAIT_INLINE) #define REQ_CGROUP_PUNT (1ULL << __REQ_CGROUP_PUNT) #define REQ_NOUNMAP (1ULL << __REQ_NOUNMAP) @@ -420,13 +418,12 @@ static inline int op_stat_group(unsigned int op) typedef unsigned int blk_qc_t; #define BLK_QC_T_NONE -1U -#define BLK_QC_T_EAGAIN -2U #define BLK_QC_T_SHIFT 16 #define BLK_QC_T_INTERNAL (1U << 31) static inline bool blk_qc_t_valid(blk_qc_t cookie) { - return cookie != BLK_QC_T_NONE && cookie != BLK_QC_T_EAGAIN; + return cookie != BLK_QC_T_NONE; } static inline unsigned int blk_qc_t_to_queue_num(blk_qc_t cookie) diff --git a/include/linux/dma-noncoherent.h b/include/linux/dma-noncoherent.h index 3813211a9aad..0bff3d7fac92 100644 --- a/include/linux/dma-noncoherent.h +++ b/include/linux/dma-noncoherent.h @@ -42,13 +42,18 @@ void arch_dma_free(struct device *dev, size_t size, void *cpu_addr, dma_addr_t dma_addr, unsigned long attrs); long arch_dma_coherent_to_pfn(struct device *dev, void *cpu_addr, dma_addr_t dma_addr); - -#ifdef CONFIG_ARCH_HAS_DMA_MMAP_PGPROT pgprot_t arch_dma_mmap_pgprot(struct device *dev, pgprot_t prot, unsigned long attrs); + +#ifdef CONFIG_MMU +pgprot_t dma_pgprot(struct device *dev, pgprot_t prot, unsigned long attrs); #else -# define arch_dma_mmap_pgprot(dev, prot, attrs) pgprot_noncached(prot) -#endif +static inline pgprot_t dma_pgprot(struct device *dev, pgprot_t prot, + unsigned long attrs) +{ + return prot; /* no protection bits supported without page tables */ +} +#endif /* CONFIG_MMU */ #ifdef CONFIG_DMA_NONCOHERENT_CACHE_SYNC void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size, diff --git a/include/linux/gfp.h b/include/linux/gfp.h index fb07b503dc45..f33881688f42 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -510,22 +510,18 @@ alloc_pages(gfp_t gfp_mask, unsigned int order) } extern struct page *alloc_pages_vma(gfp_t gfp_mask, int order, struct vm_area_struct *vma, unsigned long addr, - int node, bool hugepage); -#define alloc_hugepage_vma(gfp_mask, vma, addr, order) \ - alloc_pages_vma(gfp_mask, order, vma, addr, numa_node_id(), true) + int node); #else #define alloc_pages(gfp_mask, order) \ alloc_pages_node(numa_node_id(), gfp_mask, order) -#define alloc_pages_vma(gfp_mask, order, vma, addr, node, false)\ - alloc_pages(gfp_mask, order) -#define alloc_hugepage_vma(gfp_mask, vma, addr, order) \ +#define alloc_pages_vma(gfp_mask, order, vma, addr, node)\ alloc_pages(gfp_mask, order) #endif #define alloc_page(gfp_mask) alloc_pages(gfp_mask, 0) #define alloc_page_vma(gfp_mask, vma, addr) \ - alloc_pages_vma(gfp_mask, 0, vma, addr, numa_node_id(), false) + alloc_pages_vma(gfp_mask, 0, vma, addr, numa_node_id()) #define alloc_page_vma_node(gfp_mask, vma, addr, node) \ - alloc_pages_vma(gfp_mask, 0, vma, addr, node, false) + alloc_pages_vma(gfp_mask, 0, vma, addr, node) extern unsigned long __get_free_pages(gfp_t gfp_mask, unsigned int order); extern unsigned long get_zeroed_page(gfp_t gfp_mask); diff --git a/drivers/staging/greybus/greybus.h b/include/linux/greybus.h index d03ddb7c9df0..18c0fb958b74 100644 --- a/drivers/staging/greybus/greybus.h +++ b/include/linux/greybus.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus driver and device API * @@ -20,18 +20,18 @@ #include <linux/pm_runtime.h> #include <linux/idr.h> -#include "greybus_id.h" -#include "greybus_manifest.h" -#include "greybus_protocols.h" -#include "manifest.h" -#include "hd.h" -#include "svc.h" -#include "control.h" -#include "module.h" -#include "interface.h" -#include "bundle.h" -#include "connection.h" -#include "operation.h" +#include <linux/greybus/greybus_id.h> +#include <linux/greybus/greybus_manifest.h> +#include <linux/greybus/greybus_protocols.h> +#include <linux/greybus/manifest.h> +#include <linux/greybus/hd.h> +#include <linux/greybus/svc.h> +#include <linux/greybus/control.h> +#include <linux/greybus/module.h> +#include <linux/greybus/interface.h> +#include <linux/greybus/bundle.h> +#include <linux/greybus/connection.h> +#include <linux/greybus/operation.h> /* Matches up with the Greybus Protocol specification document */ #define GREYBUS_VERSION_MAJOR 0x00 diff --git a/drivers/staging/greybus/bundle.h b/include/linux/greybus/bundle.h index 8734d2055657..df8d88424cb7 100644 --- a/drivers/staging/greybus/bundle.h +++ b/include/linux/greybus/bundle.h @@ -9,7 +9,10 @@ #ifndef __BUNDLE_H #define __BUNDLE_H +#include <linux/types.h> #include <linux/list.h> +#include <linux/pm_runtime.h> +#include <linux/device.h> #define BUNDLE_ID_NONE U8_MAX diff --git a/drivers/staging/greybus/connection.h b/include/linux/greybus/connection.h index 5ca3befc0636..d59b7fc1de3e 100644 --- a/drivers/staging/greybus/connection.h +++ b/include/linux/greybus/connection.h @@ -9,8 +9,11 @@ #ifndef __CONNECTION_H #define __CONNECTION_H +#include <linux/bits.h> #include <linux/list.h> #include <linux/kfifo.h> +#include <linux/kref.h> +#include <linux/workqueue.h> #define GB_CONNECTION_FLAG_CSD BIT(0) #define GB_CONNECTION_FLAG_NO_FLOWCTRL BIT(1) diff --git a/drivers/staging/greybus/control.h b/include/linux/greybus/control.h index 3a29ec05f631..da11fe871653 100644 --- a/drivers/staging/greybus/control.h +++ b/include/linux/greybus/control.h @@ -9,6 +9,9 @@ #ifndef __CONTROL_H #define __CONTROL_H +#include <linux/types.h> +#include <linux/device.h> + struct gb_control { struct device dev; struct gb_interface *intf; diff --git a/drivers/staging/greybus/greybus_id.h b/include/linux/greybus/greybus_id.h index f4c8440093e4..f4c8440093e4 100644 --- a/drivers/staging/greybus/greybus_id.h +++ b/include/linux/greybus/greybus_id.h diff --git a/drivers/staging/greybus/greybus_manifest.h b/include/linux/greybus/greybus_manifest.h index 2cec5cf7a846..6e62fe478712 100644 --- a/drivers/staging/greybus/greybus_manifest.h +++ b/include/linux/greybus/greybus_manifest.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus manifest definition * @@ -14,6 +14,9 @@ #ifndef __GREYBUS_MANIFEST_H #define __GREYBUS_MANIFEST_H +#include <linux/bits.h> +#include <linux/types.h> + enum greybus_descriptor_type { GREYBUS_TYPE_INVALID = 0x00, GREYBUS_TYPE_INTERFACE = 0x01, diff --git a/drivers/staging/greybus/greybus_protocols.h b/include/linux/greybus/greybus_protocols.h index ddc73f10eb22..dfbc6c39a74b 100644 --- a/drivers/staging/greybus/greybus_protocols.h +++ b/include/linux/greybus/greybus_protocols.h @@ -1,58 +1,14 @@ -// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ /* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2014 - 2015 Google Inc. All rights reserved. - * Copyright(c) 2014 - 2015 Linaro Ltd. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details. - * - * BSD LICENSE - * * Copyright(c) 2014 - 2015 Google Inc. All rights reserved. * Copyright(c) 2014 - 2015 Linaro Ltd. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. or Linaro Ltd. nor the names of - * its contributors may be used to endorse or promote products - * derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR - * LINARO LTD. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef __GREYBUS_PROTOCOLS_H #define __GREYBUS_PROTOCOLS_H +#include <linux/types.h> + /* Fixed IDs for control/svc protocols */ /* SVC switch-port device ids */ diff --git a/drivers/staging/greybus/hd.h b/include/linux/greybus/hd.h index 6cf024a20a58..d3faf0c1a569 100644 --- a/drivers/staging/greybus/hd.h +++ b/include/linux/greybus/hd.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus Host Device * @@ -9,6 +9,9 @@ #ifndef __HD_H #define __HD_H +#include <linux/types.h> +#include <linux/device.h> + struct gb_host_device; struct gb_message; diff --git a/drivers/staging/greybus/interface.h b/include/linux/greybus/interface.h index 1c00c5bb3ec9..ce4def881e6f 100644 --- a/drivers/staging/greybus/interface.h +++ b/include/linux/greybus/interface.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus Interface Block code * @@ -9,6 +9,9 @@ #ifndef __INTERFACE_H #define __INTERFACE_H +#include <linux/types.h> +#include <linux/device.h> + enum gb_interface_type { GB_INTERFACE_TYPE_INVALID = 0, GB_INTERFACE_TYPE_UNKNOWN, diff --git a/drivers/staging/greybus/manifest.h b/include/linux/greybus/manifest.h index f3c95a255631..830301b7a8bc 100644 --- a/drivers/staging/greybus/manifest.h +++ b/include/linux/greybus/manifest.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus manifest parsing * @@ -9,6 +9,8 @@ #ifndef __MANIFEST_H #define __MANIFEST_H +#include <linux/types.h> + struct gb_interface; bool gb_manifest_parse(struct gb_interface *intf, void *data, size_t size); diff --git a/drivers/staging/greybus/module.h b/include/linux/greybus/module.h index b1ebcc6636db..47b839af145d 100644 --- a/drivers/staging/greybus/module.h +++ b/include/linux/greybus/module.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus Module code * @@ -9,6 +9,9 @@ #ifndef __MODULE_H #define __MODULE_H +#include <linux/types.h> +#include <linux/device.h> + struct gb_module { struct device dev; struct gb_host_device *hd; diff --git a/drivers/staging/greybus/operation.h b/include/linux/greybus/operation.h index 40b7b02fff88..cb8e4ef45222 100644 --- a/drivers/staging/greybus/operation.h +++ b/include/linux/greybus/operation.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus operations * @@ -10,7 +10,12 @@ #define __OPERATION_H #include <linux/completion.h> +#include <linux/kref.h> +#include <linux/timer.h> +#include <linux/types.h> +#include <linux/workqueue.h> +struct gb_host_device; struct gb_operation; /* The default amount of time a request is given to complete */ diff --git a/drivers/staging/greybus/svc.h b/include/linux/greybus/svc.h index ad01783bac9c..5afaf5f06856 100644 --- a/drivers/staging/greybus/svc.h +++ b/include/linux/greybus/svc.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus SVC code * @@ -9,6 +9,11 @@ #ifndef __SVC_H #define __SVC_H +#include <linux/types.h> +#include <linux/device.h> + +struct gb_svc_l2_timer_cfg; + #define GB_SVC_CPORT_FLAG_E2EFC BIT(0) #define GB_SVC_CPORT_FLAG_CSD_N BIT(1) #define GB_SVC_CPORT_FLAG_CSV_N BIT(2) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 44c41462be33..2cd4359cb38c 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -668,6 +668,7 @@ static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, void __mod_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val); +void __mod_lruvec_slab_state(void *p, enum node_stat_item idx, int val); static inline void mod_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val) @@ -1072,6 +1073,14 @@ static inline void mod_lruvec_page_state(struct page *page, mod_node_page_state(page_pgdat(page), idx, val); } +static inline void __mod_lruvec_slab_state(void *p, enum node_stat_item idx, + int val) +{ + struct page *page = virt_to_head_page(p); + + __mod_node_page_state(page_pgdat(page), idx, val); +} + static inline unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, gfp_t gfp_mask, @@ -1159,6 +1168,16 @@ static inline void __dec_lruvec_page_state(struct page *page, __mod_lruvec_page_state(page, idx, -1); } +static inline void __inc_lruvec_slab_state(void *p, enum node_stat_item idx) +{ + __mod_lruvec_slab_state(p, idx, 1); +} + +static inline void __dec_lruvec_slab_state(void *p, enum node_stat_item idx) +{ + __mod_lruvec_slab_state(p, idx, -1); +} + /* idx can be of type enum memcg_stat_item or node_stat_item */ static inline void inc_memcg_state(struct mem_cgroup *memcg, int idx) diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h index 5228c62af416..bac395f1d00a 100644 --- a/include/linux/mempolicy.h +++ b/include/linux/mempolicy.h @@ -139,6 +139,8 @@ struct mempolicy *mpol_shared_policy_lookup(struct shared_policy *sp, struct mempolicy *get_task_policy(struct task_struct *p); struct mempolicy *__get_vma_policy(struct vm_area_struct *vma, unsigned long addr); +struct mempolicy *get_vma_policy(struct vm_area_struct *vma, + unsigned long addr); bool vma_policy_mof(struct vm_area_struct *vma); extern void numa_default_policy(void); diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 3a37a89eb7a7..6a7a1083b6fb 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -159,7 +159,16 @@ struct page { /** @pgmap: Points to the hosting device page map. */ struct dev_pagemap *pgmap; void *zone_device_data; - unsigned long _zd_pad_1; /* uses mapping */ + /* + * ZONE_DEVICE private pages are counted as being + * mapped so the next 3 words hold the mapping, index, + * and private fields from the source anonymous or + * page cache page while the page is migrated to device + * private memory. + * ZONE_DEVICE MEMORY_DEVICE_FS_DAX pages also + * use the mapping, index, and private fields when + * pmem backed DAX files are mapped. + */ }; /** @rcu_head: You can use this to free a page by RCU. */ diff --git a/include/linux/pci.h b/include/linux/pci.h index 9e700d9f9f28..82e4cd1b7ac3 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1567,8 +1567,10 @@ extern bool pcie_ports_native; #ifdef CONFIG_PCIEASPM bool pcie_aspm_support_enabled(void); +bool pcie_aspm_enabled(struct pci_dev *pdev); #else static inline bool pcie_aspm_support_enabled(void) { return false; } +static inline bool pcie_aspm_enabled(struct pci_dev *pdev) { return false; } #endif #ifdef CONFIG_PCIEAER diff --git a/include/linux/usb.h b/include/linux/usb.h index 83d35d993e8c..e87826e23d59 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1457,7 +1457,7 @@ typedef void (*usb_complete_t)(struct urb *); * field rather than determining a dma address themselves. * * Note that transfer_buffer must still be set if the controller - * does not support DMA (as indicated by bus.uses_dma) and when talking + * does not support DMA (as indicated by hcd_uses_dma()) and when talking * to root hub. If you have to trasfer between highmem zone and the device * on such controller, create a bounce buffer or bail out with an error. * If transfer_buffer cannot be set (is in highmem) and the controller is DMA diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index bab27ccc8ff5..a20e7815d814 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -422,6 +422,9 @@ static inline bool hcd_periodic_completion_in_progress(struct usb_hcd *hcd, return hcd->high_prio_bh.completing_ep == ep; } +#define hcd_uses_dma(hcd) \ + (IS_ENABLED(CONFIG_HAS_DMA) && (hcd)->self.uses_dma) + extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb); extern int usb_hcd_check_unlink_urb(struct usb_hcd *hcd, struct urb *urb, int status); diff --git a/drivers/staging/erofs/include/trace/events/erofs.h b/include/trace/events/erofs.h index bfb2da9c4eee..d239f39cbc8c 100644 --- a/drivers/staging/erofs/include/trace/events/erofs.h +++ b/include/trace/events/erofs.h @@ -6,6 +6,9 @@ #define _TRACE_EROFS_H #include <linux/tracepoint.h> +#include <linux/fs.h> + +struct erofs_map_blocks; #define show_dev(dev) MAJOR(dev), MINOR(dev) #define show_dev_nid(entry) show_dev(entry->dev), entry->nid diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h index 1274c692e59c..903cc2d2750b 100644 --- a/include/uapi/linux/magic.h +++ b/include/uapi/linux/magic.h @@ -19,6 +19,7 @@ #define SQUASHFS_MAGIC 0x73717368 #define ECRYPTFS_SUPER_MAGIC 0xf15f #define EFS_SUPER_MAGIC 0x414A53 +#define EROFS_SUPER_MAGIC_V1 0xE0F5E1E2 #define EXT2_SUPER_MAGIC 0xEF53 #define EXT3_SUPER_MAGIC 0xEF53 #define XENFS_SUPER_MAGIC 0xabba1974 diff --git a/include/uapi/rdma/siw-abi.h b/include/uapi/rdma/siw-abi.h index 7de68f1dc707..af735f55b291 100644 --- a/include/uapi/rdma/siw-abi.h +++ b/include/uapi/rdma/siw-abi.h @@ -180,6 +180,7 @@ struct siw_cqe { * to control CQ arming. */ struct siw_cq_ctrl { - __aligned_u64 notify; + __u32 flags; + __u32 pad; }; #endif diff --git a/kernel/configs.c b/kernel/configs.c index b062425ccf8d..c09ea4c995e1 100644 --- a/kernel/configs.c +++ b/kernel/configs.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * kernel/configs.c * Echo the kernel .config file used to build the kernel @@ -6,21 +7,6 @@ * Copyright (C) 2002 Randy Dunlap <rdunlap@xenotime.net> * Copyright (C) 2002 Al Stone <ahs3@fc.hp.com> * Copyright (C) 2002 Hewlett-Packard Company - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/kernel.h> diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index 59bdceea3737..795c9b095d75 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -47,9 +47,6 @@ u64 dma_direct_get_required_mask(struct device *dev) { u64 max_dma = phys_to_dma_direct(dev, (max_pfn - 1) << PAGE_SHIFT); - if (dev->bus_dma_mask && dev->bus_dma_mask < max_dma) - max_dma = dev->bus_dma_mask; - return (1ULL << (fls64(max_dma) - 1)) * 2 - 1; } @@ -130,10 +127,12 @@ void *dma_direct_alloc_pages(struct device *dev, size_t size, if (!page) return NULL; - if (attrs & DMA_ATTR_NO_KERNEL_MAPPING) { + if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) && + !force_dma_unencrypted(dev)) { /* remove any dirty cache lines on the kernel alias */ if (!PageHighMem(page)) arch_dma_prep_coherent(page, size); + *dma_handle = phys_to_dma(dev, page_to_phys(page)); /* return the page pointer as the opaque cookie */ return page; } @@ -178,7 +177,8 @@ void dma_direct_free_pages(struct device *dev, size_t size, void *cpu_addr, { unsigned int page_order = get_order(size); - if (attrs & DMA_ATTR_NO_KERNEL_MAPPING) { + if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) && + !force_dma_unencrypted(dev)) { /* cpu_addr is a struct page cookie, not a kernel address */ __dma_direct_free_pages(dev, size, cpu_addr); return; diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index b945239621d8..b0038ca3aa92 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -150,6 +150,23 @@ int dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, } EXPORT_SYMBOL(dma_get_sgtable_attrs); +#ifdef CONFIG_MMU +/* + * Return the page attributes used for mapping dma_alloc_* memory, either in + * kernel space if remapping is needed, or to userspace through dma_mmap_*. + */ +pgprot_t dma_pgprot(struct device *dev, pgprot_t prot, unsigned long attrs) +{ + if (dev_is_dma_coherent(dev) || + (IS_ENABLED(CONFIG_DMA_NONCOHERENT_CACHE_SYNC) && + (attrs & DMA_ATTR_NON_CONSISTENT))) + return prot; + if (IS_ENABLED(CONFIG_ARCH_HAS_DMA_MMAP_PGPROT)) + return arch_dma_mmap_pgprot(dev, prot, attrs); + return pgprot_noncached(prot); +} +#endif /* CONFIG_MMU */ + /* * Create userspace mapping for the DMA-coherent memory. */ @@ -164,7 +181,7 @@ int dma_common_mmap(struct device *dev, struct vm_area_struct *vma, unsigned long pfn; int ret = -ENXIO; - vma->vm_page_prot = arch_dma_mmap_pgprot(dev, vma->vm_page_prot, attrs); + vma->vm_page_prot = dma_pgprot(dev, vma->vm_page_prot, attrs); if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret)) return ret; diff --git a/kernel/dma/remap.c b/kernel/dma/remap.c index a594aec07882..ffe78f0b2fe4 100644 --- a/kernel/dma/remap.c +++ b/kernel/dma/remap.c @@ -218,7 +218,7 @@ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, /* create a coherent mapping */ ret = dma_common_contiguous_remap(page, size, VM_USERMAP, - arch_dma_mmap_pgprot(dev, PAGE_KERNEL, attrs), + dma_pgprot(dev, PAGE_KERNEL, attrs), __builtin_return_address(0)); if (!ret) { __dma_direct_free_pages(dev, size, page); diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c index 636ca6f88c8e..867b4bb6d4be 100644 --- a/kernel/sched/cpufreq_schedutil.c +++ b/kernel/sched/cpufreq_schedutil.c @@ -40,6 +40,7 @@ struct sugov_policy { struct task_struct *thread; bool work_in_progress; + bool limits_changed; bool need_freq_update; }; @@ -89,8 +90,11 @@ static bool sugov_should_update_freq(struct sugov_policy *sg_policy, u64 time) !cpufreq_this_cpu_can_update(sg_policy->policy)) return false; - if (unlikely(sg_policy->need_freq_update)) + if (unlikely(sg_policy->limits_changed)) { + sg_policy->limits_changed = false; + sg_policy->need_freq_update = true; return true; + } delta_ns = time - sg_policy->last_freq_update_time; @@ -437,7 +441,7 @@ static inline bool sugov_cpu_is_busy(struct sugov_cpu *sg_cpu) { return false; } static inline void ignore_dl_rate_limit(struct sugov_cpu *sg_cpu, struct sugov_policy *sg_policy) { if (cpu_bw_dl(cpu_rq(sg_cpu->cpu)) > sg_cpu->bw_dl) - sg_policy->need_freq_update = true; + sg_policy->limits_changed = true; } static void sugov_update_single(struct update_util_data *hook, u64 time, @@ -457,7 +461,8 @@ static void sugov_update_single(struct update_util_data *hook, u64 time, if (!sugov_should_update_freq(sg_policy, time)) return; - busy = sugov_cpu_is_busy(sg_cpu); + /* Limits may have changed, don't skip frequency update */ + busy = !sg_policy->need_freq_update && sugov_cpu_is_busy(sg_cpu); util = sugov_get_util(sg_cpu); max = sg_cpu->max; @@ -831,6 +836,7 @@ static int sugov_start(struct cpufreq_policy *policy) sg_policy->last_freq_update_time = 0; sg_policy->next_freq = 0; sg_policy->work_in_progress = false; + sg_policy->limits_changed = false; sg_policy->need_freq_update = false; sg_policy->cached_raw_freq = 0; @@ -879,7 +885,7 @@ static void sugov_limits(struct cpufreq_policy *policy) mutex_unlock(&sg_policy->work_lock); } - sg_policy->need_freq_update = true; + sg_policy->limits_changed = true; } struct cpufreq_governor schedutil_gov = { diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 1334ede667a8..738065f765ab 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -644,30 +644,40 @@ release: * available * never: never stall for any thp allocation */ -static inline gfp_t alloc_hugepage_direct_gfpmask(struct vm_area_struct *vma) +static inline gfp_t alloc_hugepage_direct_gfpmask(struct vm_area_struct *vma, unsigned long addr) { const bool vma_madvised = !!(vma->vm_flags & VM_HUGEPAGE); + gfp_t this_node = 0; + +#ifdef CONFIG_NUMA + struct mempolicy *pol; + /* + * __GFP_THISNODE is used only when __GFP_DIRECT_RECLAIM is not + * specified, to express a general desire to stay on the current + * node for optimistic allocation attempts. If the defrag mode + * and/or madvise hint requires the direct reclaim then we prefer + * to fallback to other node rather than node reclaim because that + * can lead to excessive reclaim even though there is free memory + * on other nodes. We expect that NUMA preferences are specified + * by memory policies. + */ + pol = get_vma_policy(vma, addr); + if (pol->mode != MPOL_BIND) + this_node = __GFP_THISNODE; + mpol_cond_put(pol); +#endif - /* Always do synchronous compaction */ if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_DIRECT_FLAG, &transparent_hugepage_flags)) return GFP_TRANSHUGE | (vma_madvised ? 0 : __GFP_NORETRY); - - /* Kick kcompactd and fail quickly */ if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_KSWAPD_FLAG, &transparent_hugepage_flags)) - return GFP_TRANSHUGE_LIGHT | __GFP_KSWAPD_RECLAIM; - - /* Synchronous compaction if madvised, otherwise kick kcompactd */ + return GFP_TRANSHUGE_LIGHT | __GFP_KSWAPD_RECLAIM | this_node; if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_KSWAPD_OR_MADV_FLAG, &transparent_hugepage_flags)) - return GFP_TRANSHUGE_LIGHT | - (vma_madvised ? __GFP_DIRECT_RECLAIM : - __GFP_KSWAPD_RECLAIM); - - /* Only do synchronous compaction if madvised */ + return GFP_TRANSHUGE_LIGHT | (vma_madvised ? __GFP_DIRECT_RECLAIM : + __GFP_KSWAPD_RECLAIM | this_node); if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_REQ_MADV_FLAG, &transparent_hugepage_flags)) - return GFP_TRANSHUGE_LIGHT | - (vma_madvised ? __GFP_DIRECT_RECLAIM : 0); - - return GFP_TRANSHUGE_LIGHT; + return GFP_TRANSHUGE_LIGHT | (vma_madvised ? __GFP_DIRECT_RECLAIM : + this_node); + return GFP_TRANSHUGE_LIGHT | this_node; } /* Caller must hold page table lock. */ @@ -739,8 +749,8 @@ vm_fault_t do_huge_pmd_anonymous_page(struct vm_fault *vmf) pte_free(vma->vm_mm, pgtable); return ret; } - gfp = alloc_hugepage_direct_gfpmask(vma); - page = alloc_hugepage_vma(gfp, vma, haddr, HPAGE_PMD_ORDER); + gfp = alloc_hugepage_direct_gfpmask(vma, haddr); + page = alloc_pages_vma(gfp, HPAGE_PMD_ORDER, vma, haddr, numa_node_id()); if (unlikely(!page)) { count_vm_event(THP_FAULT_FALLBACK); return VM_FAULT_FALLBACK; @@ -1347,8 +1357,9 @@ vm_fault_t do_huge_pmd_wp_page(struct vm_fault *vmf, pmd_t orig_pmd) alloc: if (__transparent_hugepage_enabled(vma) && !transparent_hugepage_debug_cow()) { - huge_gfp = alloc_hugepage_direct_gfpmask(vma); - new_page = alloc_hugepage_vma(huge_gfp, vma, haddr, HPAGE_PMD_ORDER); + huge_gfp = alloc_hugepage_direct_gfpmask(vma, haddr); + new_page = alloc_pages_vma(huge_gfp, HPAGE_PMD_ORDER, vma, + haddr, numa_node_id()); } else new_page = NULL; diff --git a/mm/hugetlb.c b/mm/hugetlb.c index ede7e7f5d1ab..6d7296dd11b8 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -3856,6 +3856,25 @@ retry: page = alloc_huge_page(vma, haddr, 0); if (IS_ERR(page)) { + /* + * Returning error will result in faulting task being + * sent SIGBUS. The hugetlb fault mutex prevents two + * tasks from racing to fault in the same page which + * could result in false unable to allocate errors. + * Page migration does not take the fault mutex, but + * does a clear then write of pte's under page table + * lock. Page fault code could race with migration, + * notice the clear pte and try to allocate a page + * here. Before returning error, get ptl and make + * sure there really is no pte entry. + */ + ptl = huge_pte_lock(h, mm, ptep); + if (!huge_pte_none(huge_ptep_get(ptep))) { + ret = 0; + spin_unlock(ptl); + goto out; + } + spin_unlock(ptl); ret = vmf_error(PTR_ERR(page)); goto out; } diff --git a/mm/kmemleak.c b/mm/kmemleak.c index 6e9e8cca663e..f6e602918dac 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -1966,6 +1966,7 @@ static void kmemleak_disable(void) /* stop any memory operation tracing */ kmemleak_enabled = 0; + kmemleak_early_log = 0; /* check whether it is too early for a kernel thread */ if (kmemleak_initialized) @@ -2009,7 +2010,6 @@ void __init kmemleak_init(void) #ifdef CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF if (!kmemleak_skip_disable) { - kmemleak_early_log = 0; kmemleak_disable(); return; } diff --git a/mm/memcontrol.c b/mm/memcontrol.c index cdbb7a84cb6e..6f5c0c517c49 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -768,6 +768,26 @@ void __mod_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, __this_cpu_write(pn->lruvec_stat_cpu->count[idx], x); } +void __mod_lruvec_slab_state(void *p, enum node_stat_item idx, int val) +{ + struct page *page = virt_to_head_page(p); + pg_data_t *pgdat = page_pgdat(page); + struct mem_cgroup *memcg; + struct lruvec *lruvec; + + rcu_read_lock(); + memcg = memcg_from_slab_page(page); + + /* Untracked pages have no memcg, no lruvec. Update only the node */ + if (!memcg || memcg == root_mem_cgroup) { + __mod_node_page_state(pgdat, idx, val); + } else { + lruvec = mem_cgroup_lruvec(pgdat, memcg); + __mod_lruvec_state(lruvec, idx, val); + } + rcu_read_unlock(); +} + /** * __count_memcg_events - account VM events in a cgroup * @memcg: the memory cgroup @@ -1130,26 +1150,45 @@ void mem_cgroup_iter_break(struct mem_cgroup *root, css_put(&prev->css); } -static void invalidate_reclaim_iterators(struct mem_cgroup *dead_memcg) +static void __invalidate_reclaim_iterators(struct mem_cgroup *from, + struct mem_cgroup *dead_memcg) { - struct mem_cgroup *memcg = dead_memcg; struct mem_cgroup_reclaim_iter *iter; struct mem_cgroup_per_node *mz; int nid; int i; - for (; memcg; memcg = parent_mem_cgroup(memcg)) { - for_each_node(nid) { - mz = mem_cgroup_nodeinfo(memcg, nid); - for (i = 0; i <= DEF_PRIORITY; i++) { - iter = &mz->iter[i]; - cmpxchg(&iter->position, - dead_memcg, NULL); - } + for_each_node(nid) { + mz = mem_cgroup_nodeinfo(from, nid); + for (i = 0; i <= DEF_PRIORITY; i++) { + iter = &mz->iter[i]; + cmpxchg(&iter->position, + dead_memcg, NULL); } } } +static void invalidate_reclaim_iterators(struct mem_cgroup *dead_memcg) +{ + struct mem_cgroup *memcg = dead_memcg; + struct mem_cgroup *last; + + do { + __invalidate_reclaim_iterators(memcg, dead_memcg); + last = memcg; + } while ((memcg = parent_mem_cgroup(memcg))); + + /* + * When cgruop1 non-hierarchy mode is used, + * parent_mem_cgroup() does not walk all the way up to the + * cgroup root (root_mem_cgroup). So we have to handle + * dead_memcg from cgroup root separately. + */ + if (last != root_mem_cgroup) + __invalidate_reclaim_iterators(root_mem_cgroup, + dead_memcg); +} + /** * mem_cgroup_scan_tasks - iterate over tasks of a memory cgroup hierarchy * @memcg: hierarchy root diff --git a/mm/mempolicy.c b/mm/mempolicy.c index f48693f75b37..65e0874fce17 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -403,7 +403,7 @@ static const struct mempolicy_operations mpol_ops[MPOL_MAX] = { }, }; -static void migrate_page_add(struct page *page, struct list_head *pagelist, +static int migrate_page_add(struct page *page, struct list_head *pagelist, unsigned long flags); struct queue_pages { @@ -429,11 +429,14 @@ static inline bool queue_pages_required(struct page *page, } /* - * queue_pages_pmd() has three possible return values: - * 1 - pages are placed on the right node or queued successfully. - * 0 - THP was split. - * -EIO - is migration entry or MPOL_MF_STRICT was specified and an existing - * page was already on a node that does not follow the policy. + * queue_pages_pmd() has four possible return values: + * 0 - pages are placed on the right node or queued successfully. + * 1 - there is unmovable page, and MPOL_MF_MOVE* & MPOL_MF_STRICT were + * specified. + * 2 - THP was split. + * -EIO - is migration entry or only MPOL_MF_STRICT was specified and an + * existing page was already on a node that does not follow the + * policy. */ static int queue_pages_pmd(pmd_t *pmd, spinlock_t *ptl, unsigned long addr, unsigned long end, struct mm_walk *walk) @@ -451,23 +454,20 @@ static int queue_pages_pmd(pmd_t *pmd, spinlock_t *ptl, unsigned long addr, if (is_huge_zero_page(page)) { spin_unlock(ptl); __split_huge_pmd(walk->vma, pmd, addr, false, NULL); + ret = 2; goto out; } - if (!queue_pages_required(page, qp)) { - ret = 1; + if (!queue_pages_required(page, qp)) goto unlock; - } - ret = 1; flags = qp->flags; /* go to thp migration */ if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) { - if (!vma_migratable(walk->vma)) { - ret = -EIO; + if (!vma_migratable(walk->vma) || + migrate_page_add(page, qp->pagelist, flags)) { + ret = 1; goto unlock; } - - migrate_page_add(page, qp->pagelist, flags); } else ret = -EIO; unlock: @@ -479,6 +479,13 @@ out: /* * Scan through pages checking if pages follow certain conditions, * and move them to the pagelist if they do. + * + * queue_pages_pte_range() has three possible return values: + * 0 - pages are placed on the right node or queued successfully. + * 1 - there is unmovable page, and MPOL_MF_MOVE* & MPOL_MF_STRICT were + * specified. + * -EIO - only MPOL_MF_STRICT was specified and an existing page was already + * on a node that does not follow the policy. */ static int queue_pages_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end, struct mm_walk *walk) @@ -488,17 +495,17 @@ static int queue_pages_pte_range(pmd_t *pmd, unsigned long addr, struct queue_pages *qp = walk->private; unsigned long flags = qp->flags; int ret; + bool has_unmovable = false; pte_t *pte; spinlock_t *ptl; ptl = pmd_trans_huge_lock(pmd, vma); if (ptl) { ret = queue_pages_pmd(pmd, ptl, addr, end, walk); - if (ret > 0) - return 0; - else if (ret < 0) + if (ret != 2) return ret; } + /* THP was split, fall through to pte walk */ if (pmd_trans_unstable(pmd)) return 0; @@ -519,14 +526,28 @@ static int queue_pages_pte_range(pmd_t *pmd, unsigned long addr, if (!queue_pages_required(page, qp)) continue; if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) { - if (!vma_migratable(vma)) + /* MPOL_MF_STRICT must be specified if we get here */ + if (!vma_migratable(vma)) { + has_unmovable = true; break; - migrate_page_add(page, qp->pagelist, flags); + } + + /* + * Do not abort immediately since there may be + * temporary off LRU pages in the range. Still + * need migrate other LRU pages. + */ + if (migrate_page_add(page, qp->pagelist, flags)) + has_unmovable = true; } else break; } pte_unmap_unlock(pte - 1, ptl); cond_resched(); + + if (has_unmovable) + return 1; + return addr != end ? -EIO : 0; } @@ -639,7 +660,13 @@ static int queue_pages_test_walk(unsigned long start, unsigned long end, * * If pages found in a given range are on a set of nodes (determined by * @nodes and @flags,) it's isolated and queued to the pagelist which is - * passed via @private.) + * passed via @private. + * + * queue_pages_range() has three possible return values: + * 1 - there is unmovable page, but MPOL_MF_MOVE* & MPOL_MF_STRICT were + * specified. + * 0 - queue pages successfully or no misplaced page. + * -EIO - there is misplaced page and only MPOL_MF_STRICT was specified. */ static int queue_pages_range(struct mm_struct *mm, unsigned long start, unsigned long end, @@ -940,7 +967,7 @@ static long do_get_mempolicy(int *policy, nodemask_t *nmask, /* * page migration, thp tail pages can be passed. */ -static void migrate_page_add(struct page *page, struct list_head *pagelist, +static int migrate_page_add(struct page *page, struct list_head *pagelist, unsigned long flags) { struct page *head = compound_head(page); @@ -953,8 +980,19 @@ static void migrate_page_add(struct page *page, struct list_head *pagelist, mod_node_page_state(page_pgdat(head), NR_ISOLATED_ANON + page_is_file_cache(head), hpage_nr_pages(head)); + } else if (flags & MPOL_MF_STRICT) { + /* + * Non-movable page may reach here. And, there may be + * temporary off LRU pages or non-LRU movable pages. + * Treat them as unmovable pages since they can't be + * isolated, so they can't be moved at the moment. It + * should return -EIO for this case too. + */ + return -EIO; } } + + return 0; } /* page allocation callback for NUMA node migration */ @@ -1142,8 +1180,8 @@ static struct page *new_page(struct page *page, unsigned long start) } else if (PageTransHuge(page)) { struct page *thp; - thp = alloc_hugepage_vma(GFP_TRANSHUGE, vma, address, - HPAGE_PMD_ORDER); + thp = alloc_pages_vma(GFP_TRANSHUGE, HPAGE_PMD_ORDER, vma, + address, numa_node_id()); if (!thp) return NULL; prep_transhuge_page(thp); @@ -1157,9 +1195,10 @@ static struct page *new_page(struct page *page, unsigned long start) } #else -static void migrate_page_add(struct page *page, struct list_head *pagelist, +static int migrate_page_add(struct page *page, struct list_head *pagelist, unsigned long flags) { + return -EIO; } int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from, @@ -1182,6 +1221,7 @@ static long do_mbind(unsigned long start, unsigned long len, struct mempolicy *new; unsigned long end; int err; + int ret; LIST_HEAD(pagelist); if (flags & ~(unsigned long)MPOL_MF_VALID) @@ -1243,10 +1283,15 @@ static long do_mbind(unsigned long start, unsigned long len, if (err) goto mpol_out; - err = queue_pages_range(mm, start, end, nmask, + ret = queue_pages_range(mm, start, end, nmask, flags | MPOL_MF_INVERT, &pagelist); - if (!err) - err = mbind_range(mm, start, end, new); + + if (ret < 0) { + err = -EIO; + goto up_out; + } + + err = mbind_range(mm, start, end, new); if (!err) { int nr_failed = 0; @@ -1259,13 +1304,14 @@ static long do_mbind(unsigned long start, unsigned long len, putback_movable_pages(&pagelist); } - if (nr_failed && (flags & MPOL_MF_STRICT)) + if ((ret > 0) || (nr_failed && (flags & MPOL_MF_STRICT))) err = -EIO; } else putback_movable_pages(&pagelist); +up_out: up_write(&mm->mmap_sem); - mpol_out: +mpol_out: mpol_put(new); return err; } @@ -1688,7 +1734,7 @@ struct mempolicy *__get_vma_policy(struct vm_area_struct *vma, * freeing by another task. It is the caller's responsibility to free the * extra reference for shared policies. */ -static struct mempolicy *get_vma_policy(struct vm_area_struct *vma, +struct mempolicy *get_vma_policy(struct vm_area_struct *vma, unsigned long addr) { struct mempolicy *pol = __get_vma_policy(vma, addr); @@ -2037,7 +2083,6 @@ static struct page *alloc_page_interleave(gfp_t gfp, unsigned order, * @vma: Pointer to VMA or NULL if not available. * @addr: Virtual Address of the allocation. Must be inside the VMA. * @node: Which node to prefer for allocation (modulo policy). - * @hugepage: for hugepages try only the preferred node if possible * * This function allocates a page from the kernel page pool and applies * a NUMA policy associated with the VMA or the current process. @@ -2048,7 +2093,7 @@ static struct page *alloc_page_interleave(gfp_t gfp, unsigned order, */ struct page * alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma, - unsigned long addr, int node, bool hugepage) + unsigned long addr, int node) { struct mempolicy *pol; struct page *page; @@ -2066,31 +2111,6 @@ alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma, goto out; } - if (unlikely(IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) && hugepage)) { - int hpage_node = node; - - /* - * For hugepage allocation and non-interleave policy which - * allows the current node (or other explicitly preferred - * node) we only try to allocate from the current/preferred - * node and don't fall back to other nodes, as the cost of - * remote accesses would likely offset THP benefits. - * - * If the policy is interleave, or does not allow the current - * node in its nodemask, we allocate the standard way. - */ - if (pol->mode == MPOL_PREFERRED && !(pol->flags & MPOL_F_LOCAL)) - hpage_node = pol->v.preferred_node; - - nmask = policy_nodemask(gfp, pol); - if (!nmask || node_isset(hpage_node, *nmask)) { - mpol_cond_put(pol); - page = __alloc_pages_node(hpage_node, - gfp | __GFP_THISNODE, order); - goto out; - } - } - nmask = policy_nodemask(gfp, pol); preferred_nid = policy_node(gfp, pol, node); page = __alloc_pages_nodemask(gfp, order, preferred_nid, nmask); diff --git a/mm/memremap.c b/mm/memremap.c index 86432650f829..ed70c4e8e52a 100644 --- a/mm/memremap.c +++ b/mm/memremap.c @@ -403,6 +403,30 @@ void __put_devmap_managed_page(struct page *page) mem_cgroup_uncharge(page); + /* + * When a device_private page is freed, the page->mapping field + * may still contain a (stale) mapping value. For example, the + * lower bits of page->mapping may still identify the page as + * an anonymous page. Ultimately, this entire field is just + * stale and wrong, and it will cause errors if not cleared. + * One example is: + * + * migrate_vma_pages() + * migrate_vma_insert_page() + * page_add_new_anon_rmap() + * __page_set_anon_rmap() + * ...checks page->mapping, via PageAnon(page) call, + * and incorrectly concludes that the page is an + * anonymous page. Therefore, it incorrectly, + * silently fails to set up the new anon rmap. + * + * For other types of ZONE_DEVICE pages, migration is either + * handled differently or not done at all, so there is no need + * to clear page->mapping. + */ + if (is_device_private_page(page)) + page->mapping = NULL; + page->pgmap->ops->page_free(page); } else if (!count) __put_page(page); diff --git a/mm/rmap.c b/mm/rmap.c index e5dfe2ae6b0d..003377e24232 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -1475,7 +1475,15 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, /* * No need to invalidate here it will synchronize on * against the special swap migration pte. + * + * The assignment to subpage above was computed from a + * swap PTE which results in an invalid pointer. + * Since only PAGE_SIZE pages can currently be + * migrated, just set it to page. This will need to be + * changed when hugepage migrations to device private + * memory are supported. */ + subpage = page; goto discard; } diff --git a/mm/shmem.c b/mm/shmem.c index 626d8c74b973..2bed4761f279 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1466,7 +1466,7 @@ static struct page *shmem_alloc_hugepage(gfp_t gfp, shmem_pseudo_vma_init(&pvma, info, hindex); page = alloc_pages_vma(gfp | __GFP_COMP | __GFP_NORETRY | __GFP_NOWARN, - HPAGE_PMD_ORDER, &pvma, 0, numa_node_id(), true); + HPAGE_PMD_ORDER, &pvma, 0, numa_node_id()); shmem_pseudo_vma_destroy(&pvma); if (page) prep_transhuge_page(page); diff --git a/mm/usercopy.c b/mm/usercopy.c index 2a09796edef8..98e924864554 100644 --- a/mm/usercopy.c +++ b/mm/usercopy.c @@ -147,7 +147,7 @@ static inline void check_bogus_address(const unsigned long ptr, unsigned long n, bool to_user) { /* Reject if object wraps past end of memory. */ - if (ptr + n < ptr) + if (ptr + (n - 1) < ptr) usercopy_abort("wrapped address", NULL, to_user, 0, ptr + n); /* Reject if NULL or ZERO-allocation. */ diff --git a/mm/vmalloc.c b/mm/vmalloc.c index e0fc963acc41..7ba11e12a11f 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -3279,9 +3279,19 @@ retry: goto overflow; /* + * If required width exeeds current VA block, move + * base downwards and then recheck. + */ + if (base + end > va->va_end) { + base = pvm_determine_end_from_reverse(&va, align) - end; + term_area = area; + continue; + } + + /* * If this VA does not fit, move base downwards and recheck. */ - if (base + start < va->va_start || base + end > va->va_end) { + if (base + start < va->va_start) { va = node_to_va(rb_prev(&va->rb_node)); base = pvm_determine_end_from_reverse(&va, align) - end; term_area = area; diff --git a/mm/vmscan.c b/mm/vmscan.c index dbdc46a84f63..c77d1e3761a7 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -88,9 +88,6 @@ struct scan_control { /* Can pages be swapped as part of reclaim? */ unsigned int may_swap:1; - /* e.g. boosted watermark reclaim leaves slabs alone */ - unsigned int may_shrinkslab:1; - /* * Cgroups are not reclaimed below their configured memory.low, * unless we threaten to OOM. If any cgroups are skipped due to @@ -2714,10 +2711,8 @@ static bool shrink_node(pg_data_t *pgdat, struct scan_control *sc) shrink_node_memcg(pgdat, memcg, sc, &lru_pages); node_lru_pages += lru_pages; - if (sc->may_shrinkslab) { - shrink_slab(sc->gfp_mask, pgdat->node_id, - memcg, sc->priority); - } + shrink_slab(sc->gfp_mask, pgdat->node_id, memcg, + sc->priority); /* Record the group's reclaim efficiency */ vmpressure(sc->gfp_mask, memcg, false, @@ -3194,7 +3189,6 @@ unsigned long try_to_free_pages(struct zonelist *zonelist, int order, .may_writepage = !laptop_mode, .may_unmap = 1, .may_swap = 1, - .may_shrinkslab = 1, }; /* @@ -3238,7 +3232,6 @@ unsigned long mem_cgroup_shrink_node(struct mem_cgroup *memcg, .may_unmap = 1, .reclaim_idx = MAX_NR_ZONES - 1, .may_swap = !noswap, - .may_shrinkslab = 1, }; unsigned long lru_pages; @@ -3286,7 +3279,6 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *memcg, .may_writepage = !laptop_mode, .may_unmap = 1, .may_swap = may_swap, - .may_shrinkslab = 1, }; set_task_reclaim_state(current, &sc.reclaim_state); @@ -3598,7 +3590,6 @@ restart: */ sc.may_writepage = !laptop_mode && !nr_boost_reclaim; sc.may_swap = !nr_boost_reclaim; - sc.may_shrinkslab = !nr_boost_reclaim; /* * Do some background aging of the anon list, to give diff --git a/mm/workingset.c b/mm/workingset.c index e0b4edcb88c8..c963831d354f 100644 --- a/mm/workingset.c +++ b/mm/workingset.c @@ -380,14 +380,12 @@ void workingset_update_node(struct xa_node *node) if (node->count && node->count == node->nr_values) { if (list_empty(&node->private_list)) { list_lru_add(&shadow_nodes, &node->private_list); - __inc_lruvec_page_state(virt_to_page(node), - WORKINGSET_NODES); + __inc_lruvec_slab_state(node, WORKINGSET_NODES); } } else { if (!list_empty(&node->private_list)) { list_lru_del(&shadow_nodes, &node->private_list); - __dec_lruvec_page_state(virt_to_page(node), - WORKINGSET_NODES); + __dec_lruvec_slab_state(node, WORKINGSET_NODES); } } } @@ -480,7 +478,7 @@ static enum lru_status shadow_lru_isolate(struct list_head *item, } list_lru_isolate(lru, item); - __dec_lruvec_page_state(virt_to_page(node), WORKINGSET_NODES); + __dec_lruvec_slab_state(node, WORKINGSET_NODES); spin_unlock(lru_lock); @@ -503,7 +501,7 @@ static enum lru_status shadow_lru_isolate(struct list_head *item, * shadow entries we were tracking ... */ xas_store(&xas, NULL); - __inc_lruvec_page_state(virt_to_page(node), WORKINGSET_NODERECLAIM); + __inc_lruvec_slab_state(node, WORKINGSET_NODERECLAIM); out_invalid: xa_unlock_irq(&mapping->i_pages); diff --git a/mm/z3fold.c b/mm/z3fold.c index 1a029a7432ee..ed19d98c9dcd 100644 --- a/mm/z3fold.c +++ b/mm/z3fold.c @@ -817,9 +817,19 @@ out: static void z3fold_destroy_pool(struct z3fold_pool *pool) { kmem_cache_destroy(pool->c_handle); - z3fold_unregister_migration(pool); - destroy_workqueue(pool->release_wq); + + /* + * We need to destroy pool->compact_wq before pool->release_wq, + * as any pending work on pool->compact_wq will call + * queue_work(pool->release_wq, &pool->work). + * + * There are still outstanding pages until both workqueues are drained, + * so we cannot unregister migration until then. + */ + destroy_workqueue(pool->compact_wq); + destroy_workqueue(pool->release_wq); + z3fold_unregister_migration(pool); kfree(pool); } diff --git a/samples/auxdisplay/cfag12864b-example.c b/samples/auxdisplay/cfag12864b-example.c index 85571e90191f..bfeab44f81d0 100644 --- a/samples/auxdisplay/cfag12864b-example.c +++ b/samples/auxdisplay/cfag12864b-example.c @@ -245,7 +245,7 @@ int main(int argc, char *argv[]) if (argc != 2) { printf( - "Sintax: %s fbdev\n" + "Syntax: %s fbdev\n" "Usually: /dev/fb0, /dev/fb1...\n", argv[0]); return -1; } diff --git a/scripts/coccinelle/api/atomic_as_refcounter.cocci b/scripts/coccinelle/api/atomic_as_refcounter.cocci index 988120e0fd67..0f78d94abc35 100644 --- a/scripts/coccinelle/api/atomic_as_refcounter.cocci +++ b/scripts/coccinelle/api/atomic_as_refcounter.cocci @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only // Check if refcount_t type and API should be used // instead of atomic_t type when dealing with refcounters // diff --git a/security/keys/trusted.c b/security/keys/trusted.c index 9a94672e7adc..ade699131065 100644 --- a/security/keys/trusted.c +++ b/security/keys/trusted.c @@ -1228,24 +1228,11 @@ hashalg_fail: static int __init init_digests(void) { - u8 digest[TPM_MAX_DIGEST_SIZE]; - int ret; - int i; - - ret = tpm_get_random(chip, digest, TPM_MAX_DIGEST_SIZE); - if (ret < 0) - return ret; - if (ret < TPM_MAX_DIGEST_SIZE) - return -EFAULT; - digests = kcalloc(chip->nr_allocated_banks, sizeof(*digests), GFP_KERNEL); if (!digests) return -ENOMEM; - for (i = 0; i < chip->nr_allocated_banks; i++) - memcpy(digests[i].digest, digest, TPM_MAX_DIGEST_SIZE); - return 0; } diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c index 485edaba0037..5bf24fb819d2 100644 --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -6051,6 +6051,24 @@ void snd_hda_gen_free(struct hda_codec *codec) } EXPORT_SYMBOL_GPL(snd_hda_gen_free); +/** + * snd_hda_gen_reboot_notify - Make codec enter D3 before rebooting + * @codec: the HDA codec + * + * This can be put as patch_ops reboot_notify function. + */ +void snd_hda_gen_reboot_notify(struct hda_codec *codec) +{ + /* Make the codec enter D3 to avoid spurious noises from the internal + * speaker during (and after) reboot + */ + snd_hda_codec_set_power_to_all(codec, codec->core.afg, AC_PWRST_D3); + snd_hda_codec_write(codec, codec->core.afg, 0, + AC_VERB_SET_POWER_STATE, AC_PWRST_D3); + msleep(10); +} +EXPORT_SYMBOL_GPL(snd_hda_gen_reboot_notify); + #ifdef CONFIG_PM /** * snd_hda_gen_check_power_status - check the loopback power save state @@ -6078,6 +6096,7 @@ static const struct hda_codec_ops generic_patch_ops = { .init = snd_hda_gen_init, .free = snd_hda_gen_free, .unsol_event = snd_hda_jack_unsol_event, + .reboot_notify = snd_hda_gen_reboot_notify, #ifdef CONFIG_PM .check_power_status = snd_hda_gen_check_power_status, #endif @@ -6100,7 +6119,7 @@ static int snd_hda_parse_generic_codec(struct hda_codec *codec) err = snd_hda_parse_pin_defcfg(codec, &spec->autocfg, NULL, 0); if (err < 0) - return err; + goto error; err = snd_hda_gen_parse_auto_config(codec, &spec->autocfg); if (err < 0) diff --git a/sound/pci/hda/hda_generic.h b/sound/pci/hda/hda_generic.h index 35a670a71c42..5f199dcb0d18 100644 --- a/sound/pci/hda/hda_generic.h +++ b/sound/pci/hda/hda_generic.h @@ -332,6 +332,7 @@ int snd_hda_gen_parse_auto_config(struct hda_codec *codec, struct auto_pin_cfg *cfg); int snd_hda_gen_build_controls(struct hda_codec *codec); int snd_hda_gen_build_pcms(struct hda_codec *codec); +void snd_hda_gen_reboot_notify(struct hda_codec *codec); /* standard jack event callbacks */ void snd_hda_gen_hp_automute(struct hda_codec *codec, diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index a6d8c0d77b84..99fc0917339b 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2508,6 +2508,9 @@ static const struct pci_device_id azx_ids[] = { /* AMD, X370 & co */ { PCI_DEVICE(0x1022, 0x1457), .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB }, + /* AMD, X570 & co */ + { PCI_DEVICE(0x1022, 0x1487), + .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB }, /* AMD Stoney */ { PCI_DEVICE(0x1022, 0x157a), .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB | diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index f299f137eaea..14298ef45b21 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -163,23 +163,10 @@ static void cx_auto_reboot_notify(struct hda_codec *codec) { struct conexant_spec *spec = codec->spec; - switch (codec->core.vendor_id) { - case 0x14f12008: /* CX8200 */ - case 0x14f150f2: /* CX20722 */ - case 0x14f150f4: /* CX20724 */ - break; - default: - return; - } - /* Turn the problematic codec into D3 to avoid spurious noises from the internal speaker during (and after) reboot */ cx_auto_turn_eapd(codec, spec->num_eapds, spec->eapds, false); - - snd_hda_codec_set_power_to_all(codec, codec->core.afg, AC_PWRST_D3); - snd_hda_codec_write(codec, codec->core.afg, 0, - AC_VERB_SET_POWER_STATE, AC_PWRST_D3); - msleep(10); + snd_hda_gen_reboot_notify(codec); } static void cx_auto_free(struct hda_codec *codec) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index de224cbea7a0..e333b3e30e31 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -869,15 +869,6 @@ static void alc_reboot_notify(struct hda_codec *codec) alc_shutup(codec); } -/* power down codec to D3 at reboot/shutdown; set as reboot_notify ops */ -static void alc_d3_at_reboot(struct hda_codec *codec) -{ - snd_hda_codec_set_power_to_all(codec, codec->core.afg, AC_PWRST_D3); - snd_hda_codec_write(codec, codec->core.afg, 0, - AC_VERB_SET_POWER_STATE, AC_PWRST_D3); - msleep(10); -} - #define alc_free snd_hda_gen_free #ifdef CONFIG_PM @@ -5152,7 +5143,7 @@ static void alc_fixup_tpt440_dock(struct hda_codec *codec, struct alc_spec *spec = codec->spec; if (action == HDA_FIXUP_ACT_PRE_PROBE) { - spec->reboot_notify = alc_d3_at_reboot; /* reduce noise */ + spec->reboot_notify = snd_hda_gen_reboot_notify; /* reduce noise */ spec->parse_flags = HDA_PINCFG_NO_HP_FIXUP; codec->power_save_node = 0; /* avoid click noises */ snd_hda_apply_pincfgs(codec, pincfgs); @@ -6987,6 +6978,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x103c, 0x82bf, "HP G3 mini", ALC221_FIXUP_HP_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x103c, 0x82c0, "HP G3 mini premium", ALC221_FIXUP_HP_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x103c, 0x83b9, "HP Spectre x360", ALC269_FIXUP_HP_MUTE_LED_MIC3), + SND_PCI_QUIRK(0x103c, 0x8497, "HP Envy x360", ALC269_FIXUP_HP_MUTE_LED_MIC3), SND_PCI_QUIRK(0x1043, 0x103e, "ASUS X540SA", ALC256_FIXUP_ASUS_MIC), SND_PCI_QUIRK(0x1043, 0x103f, "ASUS TX300", ALC282_FIXUP_ASUS_TX300), SND_PCI_QUIRK(0x1043, 0x106d, "Asus K53BE", ALC269_FIXUP_LIMIT_INT_MIC_BOOST), diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index 7498b5191b68..b5927c3d5bc0 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -68,6 +68,7 @@ struct mixer_build { unsigned char *buffer; unsigned int buflen; DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); + DECLARE_BITMAP(termbitmap, MAX_ID_ELEMS); struct usb_audio_term oterm; const struct usbmix_name_map *map; const struct usbmix_selector_map *selector_map; @@ -744,6 +745,8 @@ static int uac_mixer_unit_get_channels(struct mixer_build *state, return -EINVAL; if (!desc->bNrInPins) return -EINVAL; + if (desc->bLength < sizeof(*desc) + desc->bNrInPins) + return -EINVAL; switch (state->mixer->protocol) { case UAC_VERSION_1: @@ -773,16 +776,25 @@ static int uac_mixer_unit_get_channels(struct mixer_build *state, * parse the source unit recursively until it reaches to a terminal * or a branched unit. */ -static int check_input_term(struct mixer_build *state, int id, +static int __check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) { int protocol = state->mixer->protocol; int err; void *p1; + unsigned char *hdr; memset(term, 0, sizeof(*term)); - while ((p1 = find_audio_control_unit(state, id)) != NULL) { - unsigned char *hdr = p1; + for (;;) { + /* a loop in the terminal chain? */ + if (test_and_set_bit(id, state->termbitmap)) + return -EINVAL; + + p1 = find_audio_control_unit(state, id); + if (!p1) + break; + + hdr = p1; term->id = id; if (protocol == UAC_VERSION_1 || protocol == UAC_VERSION_2) { @@ -800,7 +812,7 @@ static int check_input_term(struct mixer_build *state, int id, /* call recursively to verify that the * referenced clock entity is valid */ - err = check_input_term(state, d->bCSourceID, term); + err = __check_input_term(state, d->bCSourceID, term); if (err < 0) return err; @@ -834,7 +846,7 @@ static int check_input_term(struct mixer_build *state, int id, case UAC2_CLOCK_SELECTOR: { struct uac_selector_unit_descriptor *d = p1; /* call recursively to retrieve the channel info */ - err = check_input_term(state, d->baSourceID[0], term); + err = __check_input_term(state, d->baSourceID[0], term); if (err < 0) return err; term->type = UAC3_SELECTOR_UNIT << 16; /* virtual type */ @@ -897,7 +909,7 @@ static int check_input_term(struct mixer_build *state, int id, /* call recursively to verify that the * referenced clock entity is valid */ - err = check_input_term(state, d->bCSourceID, term); + err = __check_input_term(state, d->bCSourceID, term); if (err < 0) return err; @@ -948,7 +960,7 @@ static int check_input_term(struct mixer_build *state, int id, case UAC3_CLOCK_SELECTOR: { struct uac_selector_unit_descriptor *d = p1; /* call recursively to retrieve the channel info */ - err = check_input_term(state, d->baSourceID[0], term); + err = __check_input_term(state, d->baSourceID[0], term); if (err < 0) return err; term->type = UAC3_SELECTOR_UNIT << 16; /* virtual type */ @@ -964,7 +976,7 @@ static int check_input_term(struct mixer_build *state, int id, return -EINVAL; /* call recursively to retrieve the channel info */ - err = check_input_term(state, d->baSourceID[0], term); + err = __check_input_term(state, d->baSourceID[0], term); if (err < 0) return err; @@ -982,6 +994,15 @@ static int check_input_term(struct mixer_build *state, int id, return -ENODEV; } + +static int check_input_term(struct mixer_build *state, int id, + struct usb_audio_term *term) +{ + memset(term, 0, sizeof(*term)); + memset(state->termbitmap, 0, sizeof(state->termbitmap)); + return __check_input_term(state, id, term); +} + /* * Feature Unit */ diff --git a/tools/hv/hv_get_dhcp_info.sh b/tools/hv/hv_get_dhcp_info.sh index c38686c44656..2f2a3c7df3de 100755 --- a/tools/hv/hv_get_dhcp_info.sh +++ b/tools/hv/hv_get_dhcp_info.sh @@ -13,7 +13,7 @@ # the script prints the string "Disabled" to stdout. # # Each Distro is expected to implement this script in a distro specific -# fashion. For instance on Distros that ship with Network Manager enabled, +# fashion. For instance, on Distros that ship with Network Manager enabled, # this script can be based on the Network Manager APIs for retrieving DHCP # information. diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c index d7e06fe0270e..f5597503c771 100644 --- a/tools/hv/hv_kvp_daemon.c +++ b/tools/hv/hv_kvp_daemon.c @@ -700,7 +700,7 @@ static void kvp_get_ipconfig_info(char *if_name, /* - * Gather the DNS state. + * Gather the DNS state. * Since there is no standard way to get this information * across various distributions of interest; we just invoke * an external script that needs to be ported across distros @@ -1051,7 +1051,7 @@ static int parse_ip_val_buffer(char *in_buf, int *offset, char *start; /* - * in_buf has sequence of characters that are seperated by + * in_buf has sequence of characters that are separated by * the character ';'. The last sequence does not have the * terminating ";" character. */ @@ -1386,6 +1386,8 @@ int main(int argc, char *argv[]) daemonize = 0; break; case 'h': + print_usage(argv); + exit(0); default: print_usage(argv); exit(EXIT_FAILURE); @@ -1490,7 +1492,7 @@ int main(int argc, char *argv[]) case KVP_OP_GET_IP_INFO: kvp_ip_val = &hv_msg->body.kvp_ip_val; - error = kvp_mac_to_ip(kvp_ip_val); + error = kvp_mac_to_ip(kvp_ip_val); if (error) hv_msg->error = error; diff --git a/tools/hv/hv_set_ifconfig.sh b/tools/hv/hv_set_ifconfig.sh index 7ed9f85ef908..d10fe35b7f25 100755 --- a/tools/hv/hv_set_ifconfig.sh +++ b/tools/hv/hv_set_ifconfig.sh @@ -12,7 +12,7 @@ # be used to configure the interface. # # Each Distro is expected to implement this script in a distro specific -# fashion. For instance on Distros that ship with Network Manager enabled, +# fashion. For instance, on Distros that ship with Network Manager enabled, # this script can be based on the Network Manager APIs for configuring the # interface. # diff --git a/tools/hv/hv_vss_daemon.c b/tools/hv/hv_vss_daemon.c index efe1e34dd91b..92902a88f671 100644 --- a/tools/hv/hv_vss_daemon.c +++ b/tools/hv/hv_vss_daemon.c @@ -42,7 +42,7 @@ static int vss_do_freeze(char *dir, unsigned int cmd) * If a partition is mounted more than once, only the first * FREEZE/THAW can succeed and the later ones will get * EBUSY/EINVAL respectively: there could be 2 cases: - * 1) a user may mount the same partition to differnt directories + * 1) a user may mount the same partition to different directories * by mistake or on purpose; * 2) The subvolume of btrfs appears to have the same partition * mounted more than once. @@ -218,6 +218,8 @@ int main(int argc, char *argv[]) daemonize = 0; break; case 'h': + print_usage(argv); + exit(0); default: print_usage(argv); exit(EXIT_FAILURE); diff --git a/tools/hv/lsvmbus b/tools/hv/lsvmbus index 55e7374bade0..099f2c44dbed 100644 --- a/tools/hv/lsvmbus +++ b/tools/hv/lsvmbus @@ -4,10 +4,10 @@ import os from optparse import OptionParser +help_msg = "print verbose messages. Try -vv, -vvv for more verbose messages" parser = OptionParser() -parser.add_option("-v", "--verbose", dest="verbose", - help="print verbose messages. Try -vv, -vvv for \ - more verbose messages", action="count") +parser.add_option( + "-v", "--verbose", dest="verbose", help=help_msg, action="count") (options, args) = parser.parse_args() @@ -21,27 +21,28 @@ if not os.path.isdir(vmbus_sys_path): exit(-1) vmbus_dev_dict = { - '{0e0b6031-5213-4934-818b-38d90ced39db}' : '[Operating system shutdown]', - '{9527e630-d0ae-497b-adce-e80ab0175caf}' : '[Time Synchronization]', - '{57164f39-9115-4e78-ab55-382f3bd5422d}' : '[Heartbeat]', - '{a9a0f4e7-5a45-4d96-b827-8a841e8c03e6}' : '[Data Exchange]', - '{35fa2e29-ea23-4236-96ae-3a6ebacba440}' : '[Backup (volume checkpoint)]', - '{34d14be3-dee4-41c8-9ae7-6b174977c192}' : '[Guest services]', - '{525074dc-8985-46e2-8057-a307dc18a502}' : '[Dynamic Memory]', - '{cfa8b69e-5b4a-4cc0-b98b-8ba1a1f3f95a}' : 'Synthetic mouse', - '{f912ad6d-2b17-48ea-bd65-f927a61c7684}' : 'Synthetic keyboard', - '{da0a7802-e377-4aac-8e77-0558eb1073f8}' : 'Synthetic framebuffer adapter', - '{f8615163-df3e-46c5-913f-f2d2f965ed0e}' : 'Synthetic network adapter', - '{32412632-86cb-44a2-9b5c-50d1417354f5}' : 'Synthetic IDE Controller', - '{ba6163d9-04a1-4d29-b605-72e2ffb1dc7f}' : 'Synthetic SCSI Controller', - '{2f9bcc4a-0069-4af3-b76b-6fd0be528cda}' : 'Synthetic fiber channel adapter', - '{8c2eaf3d-32a7-4b09-ab99-bd1f1c86b501}' : 'Synthetic RDMA adapter', - '{44c4f61d-4444-4400-9d52-802e27ede19f}' : 'PCI Express pass-through', - '{276aacf4-ac15-426c-98dd-7521ad3f01fe}' : '[Reserved system device]', - '{f8e65716-3cb3-4a06-9a60-1889c5cccab5}' : '[Reserved system device]', - '{3375baf4-9e15-4b30-b765-67acb10d607b}' : '[Reserved system device]', + '{0e0b6031-5213-4934-818b-38d90ced39db}': '[Operating system shutdown]', + '{9527e630-d0ae-497b-adce-e80ab0175caf}': '[Time Synchronization]', + '{57164f39-9115-4e78-ab55-382f3bd5422d}': '[Heartbeat]', + '{a9a0f4e7-5a45-4d96-b827-8a841e8c03e6}': '[Data Exchange]', + '{35fa2e29-ea23-4236-96ae-3a6ebacba440}': '[Backup (volume checkpoint)]', + '{34d14be3-dee4-41c8-9ae7-6b174977c192}': '[Guest services]', + '{525074dc-8985-46e2-8057-a307dc18a502}': '[Dynamic Memory]', + '{cfa8b69e-5b4a-4cc0-b98b-8ba1a1f3f95a}': 'Synthetic mouse', + '{f912ad6d-2b17-48ea-bd65-f927a61c7684}': 'Synthetic keyboard', + '{da0a7802-e377-4aac-8e77-0558eb1073f8}': 'Synthetic framebuffer adapter', + '{f8615163-df3e-46c5-913f-f2d2f965ed0e}': 'Synthetic network adapter', + '{32412632-86cb-44a2-9b5c-50d1417354f5}': 'Synthetic IDE Controller', + '{ba6163d9-04a1-4d29-b605-72e2ffb1dc7f}': 'Synthetic SCSI Controller', + '{2f9bcc4a-0069-4af3-b76b-6fd0be528cda}': 'Synthetic fiber channel adapter', + '{8c2eaf3d-32a7-4b09-ab99-bd1f1c86b501}': 'Synthetic RDMA adapter', + '{44c4f61d-4444-4400-9d52-802e27ede19f}': 'PCI Express pass-through', + '{276aacf4-ac15-426c-98dd-7521ad3f01fe}': '[Reserved system device]', + '{f8e65716-3cb3-4a06-9a60-1889c5cccab5}': '[Reserved system device]', + '{3375baf4-9e15-4b30-b765-67acb10d607b}': '[Reserved system device]', } + def get_vmbus_dev_attr(dev_name, attr): try: f = open('%s/%s/%s' % (vmbus_sys_path, dev_name, attr), 'r') @@ -52,6 +53,7 @@ def get_vmbus_dev_attr(dev_name, attr): return lines + class VMBus_Dev: pass @@ -66,12 +68,13 @@ for f in os.listdir(vmbus_sys_path): chn_vp_mapping = get_vmbus_dev_attr(f, 'channel_vp_mapping') chn_vp_mapping = [c.strip() for c in chn_vp_mapping] - chn_vp_mapping = sorted(chn_vp_mapping, - key = lambda c : int(c.split(':')[0])) + chn_vp_mapping = sorted( + chn_vp_mapping, key=lambda c: int(c.split(':')[0])) - chn_vp_mapping = ['\tRel_ID=%s, target_cpu=%s' % - (c.split(':')[0], c.split(':')[1]) - for c in chn_vp_mapping] + chn_vp_mapping = [ + '\tRel_ID=%s, target_cpu=%s' % + (c.split(':')[0], c.split(':')[1]) for c in chn_vp_mapping + ] d = VMBus_Dev() d.sysfs_path = '%s/%s' % (vmbus_sys_path, f) d.vmbus_id = vmbus_id @@ -85,7 +88,7 @@ for f in os.listdir(vmbus_sys_path): vmbus_dev_list.append(d) -vmbus_dev_list = sorted(vmbus_dev_list, key = lambda d : int(d.vmbus_id)) +vmbus_dev_list = sorted(vmbus_dev_list, key=lambda d: int(d.vmbus_id)) format0 = '%2s: %s' format1 = '%2s: Class_ID = %s - %s\n%s' @@ -95,9 +98,15 @@ for d in vmbus_dev_list: if verbose == 0: print(('VMBUS ID ' + format0) % (d.vmbus_id, d.dev_desc)) elif verbose == 1: - print (('VMBUS ID ' + format1) % \ - (d.vmbus_id, d.class_id, d.dev_desc, d.chn_vp_mapping)) + print( + ('VMBUS ID ' + format1) % + (d.vmbus_id, d.class_id, d.dev_desc, d.chn_vp_mapping) + ) else: - print (('VMBUS ID ' + format2) % \ - (d.vmbus_id, d.class_id, d.dev_desc, \ - d.device_id, d.sysfs_path, d.chn_vp_mapping)) + print( + ('VMBUS ID ' + format2) % + ( + d.vmbus_id, d.class_id, d.dev_desc, + d.device_id, d.sysfs_path, d.chn_vp_mapping + ) + ) |