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2014-07-24parisc: Remove SA_RESTORER defineJohn David Anglin1-2/+0
The sa_restorer field in struct sigaction is obsolete and no longer in the parisc implementation. However, the core code assumes the field is present if SA_RESTORER is defined. So, the define needs to be removed. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: <stable@vger.kernel.org> Signed-off-by: Helge Deller <deller@gmx.de>
2014-07-23Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds1-4/+13
Pull arm64 fix from Catalin Marinas: "Fix arm64 regression introduced by limiting the CMA buffer to ZONE_DMA on platforms where RAM starts above 4GB (and ZONE_DMA becoming 0)" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: Create non-empty ZONE_DMA when DRAM starts above 4GB
2014-07-23Merge tag 'xtensa-next-20140721' of git://github.com/czankel/xtensa-linuxLinus Torvalds3-25/+139
Pull Xtensa fixes from Chris Zankel: - resolve FIXMEs in double exception handler for window overflow. This fix makes native building of linux on xtensa host possible; - fix sysmem region removal issue introduced in 3.15. * tag 'xtensa-next-20140721' of git://github.com/czankel/xtensa-linux: xtensa: fix sysmem reservation at the end of existing block xtensa: add fixup for double exception raised in window overflow
2014-07-23Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds7-7/+31
Pull powerpc fixes from Ben Herrenschmidt: "Here is a handful of powerpc fixes for 3.16. They are all pretty simple and self contained and should still make this release" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: use _GLOBAL_TOC for memmove powerpc/pseries: dynamically added OF nodes need to call of_node_init powerpc: subpage_protect: Increase the array size to take care of 64TB powerpc: Fix bugs in emulate_step() powerpc: Disable doorbells on Power8 DD1.x
2014-07-23sh: also try passing -m4-nofpu for SH2A buildsGeert Uytterhoeven1-1/+2
When compiling a SH2A kernel (e.g. se7206_defconfig or rsk7203_defconfig) using sh4-linux-gcc, linking fails with: net/built-in.o: In function `__sk_run_filter': net/core/filter.c:566: undefined reference to `__fpscr_values' net/core/filter.c:269: undefined reference to `__fpscr_values' ... net/built-in.o:net/core/filter.c:580: more undefined references to `__fpscr_values' follow This happens because sh4-linux-gcc doesn't support the "-m2a-nofpu", which is thus filtered out by "$(call cc-option, ...)". As compiling using sh4-linux-gcc is useful for compile coverage, also try passing "-m4-nofpu" (which is presumably filtered out when using a real sh2a-linux toolchain) to disable the generation of FPU instructions and references to __fpscr_values[]. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Tony Breeds <tony@bakeyournoodle.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Daniel Borkmann <dborkman@redhat.com> Cc: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-07-23arm64: Create non-empty ZONE_DMA when DRAM starts above 4GBCatalin Marinas1-4/+13
ZONE_DMA is created to allow 32-bit only devices to access memory in the absence of an IOMMU. On systems where the memory starts above 4GB, it is expected that some devices have a DMA offset hardwired to be able to access the bottom of the memory. Linux currently supports DT bindings for the DMA offsets but they are not (easily) available early during boot. This patch tries to guess a DMA offset and assumes that ZONE_DMA corresponds to the 32-bit mask above the start of DRAM. Fixes: 2d5a5612bc (arm64: Limit the CMA buffer to 32-bit if ZONE_DMA) Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reported-by: Mark Salter <msalter@redhat.com> Tested-by: Mark Salter <msalter@redhat.com> Tested-by: Anup Patel <anup.patel@linaro.org>
2014-07-22powerpc: use _GLOBAL_TOC for memmoveLi Zhong1-1/+1
memmove may be called from module code copy_pages(btrfs), and it may call memcpy, which may call back to C code, so it needs to use _GLOBAL_TOC to set up r2 correctly. This fixes following error when I tried to boot an le guest: Vector: 300 (Data Access) at [c000000073f97210] pc: c000000000015004: enable_kernel_altivec+0x24/0x80 lr: c000000000058fbc: enter_vmx_copy+0x3c/0x60 sp: c000000073f97490 msr: 8000000002009033 dar: d000000001d50170 dsisr: 40000000 current = 0xc0000000734c0000 paca = 0xc00000000fff0000 softe: 0 irq_happened: 0x01 pid = 815, comm = mktemp enter ? for help [c000000073f974f0] c000000000058fbc enter_vmx_copy+0x3c/0x60 [c000000073f97510] c000000000057d34 memcpy_power7+0x274/0x840 [c000000073f97610] d000000001c3179c copy_pages+0xfc/0x110 [btrfs] [c000000073f97660] d000000001c3c248 memcpy_extent_buffer+0xe8/0x160 [btrfs] [c000000073f97700] d000000001be4be8 setup_items_for_insert+0x208/0x4a0 [btrfs] [c000000073f97820] d000000001be50b4 btrfs_insert_empty_items+0xf4/0x140 [btrfs] [c000000073f97890] d000000001bfed30 insert_with_overflow+0x70/0x180 [btrfs] [c000000073f97900] d000000001bff174 btrfs_insert_dir_item+0x114/0x2f0 [btrfs] [c000000073f979a0] d000000001c1f92c btrfs_add_link+0x10c/0x370 [btrfs] [c000000073f97a40] d000000001c20e94 btrfs_create+0x204/0x270 [btrfs] [c000000073f97b00] c00000000026d438 vfs_create+0x178/0x210 [c000000073f97b50] c000000000270a70 do_last+0x9f0/0xe90 [c000000073f97c20] c000000000271010 path_openat+0x100/0x810 [c000000073f97ce0] c000000000272ea8 do_filp_open+0x58/0xd0 [c000000073f97dc0] c00000000025ade8 do_sys_open+0x1b8/0x300 [c000000073f97e30] c00000000000a008 syscall_exit+0x0/0x7c Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-07-22powerpc/pseries: dynamically added OF nodes need to call of_node_initTyrel Datwyler2-0/+2
Commit 75b57ecf9 refactored device tree nodes to use kobjects such that they can be exposed via /sysfs. A secondary commit 0829f6d1f furthered this rework by moving the kobect initialization logic out of of_node_add into its own of_node_init function. The inital commit removed the existing kref_init calls in the pseries dlpar code with the assumption kobject initialization would occur in of_node_add. The second commit had the side effect of triggering a BUG_ON during DLPAR, migration and suspend/resume operations as a result of dynamically added nodes being uninitialized. This patch fixes this by adding of_node_init calls in place of the previously removed kref_init calls. Fixes: 0829f6d1f69e ("of: device_node kobject lifecycle fixes") Cc: stable@vger.kernel.org Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Acked-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Acked-by: Grant Likely <grant.likely@linaro.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-07-22powerpc: subpage_protect: Increase the array size to take care of 64TBAneesh Kumar K.V1-1/+2
We now support TASK_SIZE of 16TB, hence the array should be 8. Fixes the below crash: Unable to handle kernel paging request for data at address 0x000100bd Faulting instruction address: 0xc00000000004f914 cpu 0x13: Vector: 300 (Data Access) at [c000000fea75fa90] pc: c00000000004f914: .sys_subpage_prot+0x2d4/0x5c0 lr: c00000000004fb5c: .sys_subpage_prot+0x51c/0x5c0 sp: c000000fea75fd10 msr: 9000000000009032 dar: 100bd dsisr: 40000000 current = 0xc000000fea6ae490 paca = 0xc00000000fb8ab00 softe: 0 irq_happened: 0x00 pid = 8237, comm = a.out enter ? for help [c000000fea75fe30] c00000000000a164 syscall_exit+0x0/0x98 Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-07-22powerpc: Fix bugs in emulate_step()Paul Mackerras1-5/+5
This fixes some bugs in emulate_step(). First, the setting of the carry bit for the arithmetic right-shift instructions was not correct on 64-bit machines because we were masking with a mask of type int rather than unsigned long. Secondly, the sld (shift left doubleword) instruction was using the wrong instruction field for the register containing the shift count. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-07-22powerpc: Disable doorbells on Power8 DD1.xJoel Stanley2-0/+21
These processors do not currently support doorbell IPIs, so remove them from the feature list if we are at DD 1.xx for the 0x004d part. This fixes a regression caused by d4e58e5928f8 (powerpc/powernv: Enable POWER8 doorbell IPIs). With that patch the kernel would hang at boot when calling smp_call_function_many, as the doorbell would not be received by the target CPUs: .smp_call_function_many+0x2bc/0x3c0 (unreliable) .on_each_cpu_mask+0x30/0x100 .cpuidle_register_driver+0x158/0x1a0 .cpuidle_register+0x2c/0x110 .powernv_processor_idle_init+0x23c/0x2c0 .do_one_initcall+0xd4/0x260 .kernel_init_freeable+0x25c/0x33c .kernel_init+0x1c/0x120 .ret_from_kernel_thread+0x58/0x7c Fixes: d4e58e5928f8 (powerpc/powernv: Enable POWER8 doorbell IPIs) Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-07-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds4-1/+6
Pull sparc fix from David Miller: "Need to hook up the new renameat2 system call" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: Hook up renameat2 syscall.
2014-07-21sparc: Hook up renameat2 syscall.David S. Miller4-1/+6
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-21Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds10-58/+64
Pull kvm fixes from Paolo Bonzini: "These are mostly PPC changes for 3.16-new things. However, there is an x86 change too and it is a regression from 3.14. As it only affects nested virtualization and there were other changes in this area in 3.16, I am not nominating it for 3.15-stable" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: Check for nested events if there is an injectable interrupt KVM: PPC: RTAS: Do byte swaps explicitly KVM: PPC: Book3S PR: Fix ABIv2 on LE KVM: PPC: Assembly functions exported to modules need _GLOBAL_TOC() PPC: Add _GLOBAL_TOC for 32bit KVM: PPC: BOOK3S: HV: Use base page size when comparing against slb value KVM: PPC: Book3E: Unlock mmu_lock when setting caching atttribute
2014-07-21Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds4-50/+21
Pull s390 fixes from Martin Schwidefsky: "A couple of last minute bug fixes for 3.16, including a fix for ptrace to close a hole which allowed a user space program to write to the kernel address space" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: fix restore of invalid floating-point-control s390/zcrypt: improve device probing for zcrypt adapter cards s390/ptrace: fix PSW mask check s390/MSI: Use standard mask and unmask funtions s390/3270: correct size detection with the read-partition command s390: require mvcos facility, not tod clock steering facility
2014-07-20um: segv: Save regs only in case of a kernel mode faultRichard Weinberger1-1/+1
...otherwise me lose user mode regs and the resulting stack trace is useless. Signed-off-by: Richard Weinberger <richard@nod.at>
2014-07-20um: Fix hung task in fix_range_common()Richard Weinberger1-1/+5
If do_ops() fails we have to release current->mm->mmap_sem otherwise the failing task will never terminate. Reported-by: Toralf Förster <toralf.foerster@gmx.de> Signed-off-by: Richard Weinberger <richard@nod.at>
2014-07-20um: Ensure that a stub page cannot get unmappedRichard Weinberger1-0/+3
Trinity discovered an execution path such that a task can unmap his stub page. Reported-by: Toralf Förster <toralf.foerster@gmx.de> Signed-off-by: Richard Weinberger <richard@nod.at>
2014-07-20Revert "um: Fix wait_stub_done() error handling"Richard Weinberger1-7/+2
This reverts commit 0974a9cadc7886f7baaa458bb0c89f5c5f9d458e. The real for for that issue is to release current->mm->mmap_sem in fix_range_common(). Signed-off-by: Richard Weinberger <richard@nod.at>
2014-07-19Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds5-0/+5
Pull locking fixes from Thomas Gleixner: "The locking department delivers: - A rather large and intrusive bundle of fixes to address serious performance regressions introduced by the new rwsem / mcs technology. Simpler solutions have been discussed, but they would have been ugly bandaids with more risk than doing the right thing. - Make the rwsem spin on owner technology opt-in for architectures and enable it only on the known to work ones. - A few fixes to the lockdep userspace library" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER locking/mutex: Disable optimistic spinning on some architectures locking/rwsem: Reduce the size of struct rw_semaphore locking/rwsem: Rename 'activity' to 'count' locking/spinlocks/mcs: Micro-optimize osq_unlock() locking/spinlocks/mcs: Introduce and use init macro and function for osq locks locking/spinlocks/mcs: Convert osq lock to atomic_t to reduce overhead locking/spinlocks/mcs: Rename optimistic_spin_queue() to optimistic_spin_node() locking/rwsem: Allow conservative optimistic spinning when readers have lock tools/liblockdep: Account for bitfield changes in lockdeps lock_acquire tools/liblockdep: Remove debug print left over from development tools/liblockdep: Fix comparison of a boolean value with a value of 2
2014-07-18Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds8-31/+48
Pull ARM SoC fixes from Olof Johansson: "A smaller set of fixes this week, and all regression fixes: - a handful of issues fixed on at91 with common clock conversion - a set of fixes for Marvell mvebu (SMP, coherency, PM) - a clock fix for i.MX6Q. - ... and a SMP/hotplug fix for Exynos" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: EXYNOS: Fix core ID used by platsmp and hotplug code ARM: at91/dt: add missing clocks property to pwm node in sam9x5.dtsi ARM: at91/dt: fix usb0 clocks definition in sam9n12 dtsi ARM: at91: at91sam9x5: correct typo error for ohci clock ARM: clk-imx6q: parent lvds_sel input from upstream clock gates ARM: mvebu: Fix coherency bus notifiers by using separate notifiers ARM: mvebu: Fix the operand list in the inline asm of armada_370_xp_pmsu_idle_enter ARM: mvebu: fix SMP boot for Armada 38x and Armada 375 Z1 in big endian
2014-07-18Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds5-18/+54
Pull x86 fixes from Peter Anvin: "A couple of key fixes and a few less critical ones. The main ones are: - add a .bss section to the PE/COFF headers when building with EFI stub - invoke the correct paravirt magic when building the espfix page tables Unfortunately both of these areas also have at least one additional fix each still in thie pipeline, but which are not yet ready to push" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Remove unused variable "polling" x86/espfix/xen: Fix allocation of pages for paravirt page tables x86/efi: Include a .bss section within the PE/COFF headers efi: fdt: Do not report an error during boot if UEFI is not available efi/arm64: efistub: remove local copy of linux_banner
2014-07-18ARM: EXYNOS: Fix core ID used by platsmp and hotplug codeTomasz Figa2-19/+25
When CPU topology is specified in device tree, cpu_logical_map() does not return core ID anymore, but rather full MPIDR value. This breaks existing calculation of PMU register offsets on Exynos SoCs. This patch fixes the problem by adjusting the code to use only core ID bits of the value returned by cpu_logical_map() to allow CPU topology to be specified in device tree on Exynos SoCs. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18Merge tag 'imx-fixes-3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixesOlof Johansson1-2/+2
Merge "ARM: imx: fixes for 3.16, 2nd take" from Shawn Guo: The i.MX fixes for 3.16, 2nd take: It fixes a hard machine hang regression for boards where only pcie is active but no sata, as the latest imx6-pcie driver is no longer enabling the upstream clock directly but only lvds clk out. * tag 'imx-fixes-3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: clk-imx6q: parent lvds_sel input from upstream clock gates Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixesOlof Johansson2-3/+3
Merge "at91: fixes for 3.16 #2" from Nicolas Ferre: Second AT91 fixes series for 3.16 - fix clock definitions after the move to CCF for: * at91sam9n12 (ohci) * at91sam9x5 (ohci, pwm) * tag 'at91-fixes' of git://github.com/at91linux/linux-at91: ARM: at91/dt: add missing clocks property to pwm node in sam9x5.dtsi ARM: at91/dt: fix usb0 clocks definition in sam9n12 dtsi ARM: at91: at91sam9x5: correct typo error for ohci clock Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18Merge tag 'mvebu-fixes-3.16-3' of git://git.infradead.org/linux-mvebu into fixesOlof Johansson3-7/+18
Merge "mvebu fixes for v3.16 (round 3)" from Jason Cooper: - Fix SMP boot on 38x/375 in big endian - Fix operand list for pmsu on 370/XP - Fix coherency bus notifiers * tag 'mvebu-fixes-3.16-3' of git://git.infradead.org/linux-mvebu: ARM: mvebu: Fix coherency bus notifiers by using separate notifiers ARM: mvebu: Fix the operand list in the inline asm of armada_370_xp_pmsu_idle_enter ARM: mvebu: fix SMP boot for Armada 38x and Armada 375 Z1 in big endian Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18ARM: at91/dt: add missing clocks property to pwm node in sam9x5.dtsiBoris BREZILLON1-0/+1
The pwm driver requires a clocks property referencing the pwm peripheral clk. Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-07-18ARM: at91/dt: fix usb0 clocks definition in sam9n12 dtsiBoris BREZILLON1-1/+1
udphs_clk (USB Device Controller clock) is referenced instead of uhphs_clk (USB Host Controller clock). Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-07-18ARM: at91: at91sam9x5: correct typo error for ohci clockBo Shen1-2/+1
Correct the typo error for the second "uhphs_clk". Signed-off-by: Bo Shen <voice.shen@atmel.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-07-18ARM: clk-imx6q: parent lvds_sel input from upstream clock gatesLucas Stach1-2/+2
The i.MX6 reference manual doesn't make a clear distinction between the fixed clock divider and the enable gate for the pcie and sata reference clocks. This lead to the lvds mux inputs in the imx6q clk driver to be parented from the ref clock (which is the divider) instead of the actual gate, which in turn prevents the upstream clock to actually be enabled when lvds clk out is active. This fixes a hard machine hang regression in kernel 3.16 for boards where only pcie is active but no sata, as with this kernel version the imx6-pcie driver is no longer enabling the upstream clock directly but only lvds clk out. Reported-by: Arne Ruhnau <arne.ruhnau@target-sg.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Tested-by: Arne Ruhnau <arne.ruhnau@target-sg.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-16Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds3-4/+4
Pull scheduler fixes from Ingo Molnar: "A cpufreq lockup fix and a compiler warning fix" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Fix compiler warnings x86, tsc: Fix cpufreq lockup
2014-07-16Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-0/+9
Pull perf fixes from Ingo Molnar: "Tooling fixes and an Intel PMU driver fixlet" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Do not allow optimized switch for non-cloned events perf/x86/intel: ignore CondChgd bit to avoid false NMI handling perf symbols: Get kernel start address by symbol name perf tools: Fix segfault in cumulative.callchain report
2014-07-16locking/mutex: Disable optimistic spinning on some architecturesPeter Zijlstra5-0/+5
The optimistic spin code assumes regular stores and cmpxchg() play nice; this is found to not be true for at least: parisc, sparc32, tile32, metag-lock1, arc-!llsc and hexagon. There is further wreckage, but this in particular seemed easy to trigger, so blacklist this. Opt in for known good archs. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Reported-by: Mikulas Patocka <mpatocka@redhat.com> Cc: David Miller <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: James Bottomley <James.Bottomley@hansenpartnership.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Jason Low <jason.low2@hp.com> Cc: Waiman Long <waiman.long@hp.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: John David Anglin <dave.anglin@bell.net> Cc: James Hogan <james.hogan@imgtec.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Davidlohr Bueso <davidlohr@hp.com> Cc: stable@vger.kernel.org Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: sparclinux@vger.kernel.org Link: http://lkml.kernel.org/r/20140606175316.GV13930@laptop.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-07-16x86: Remove unused variable "polling"Paul Bolle1-1/+0
Compile tested. "polling" is unused since commit f80c5b39b80a ("sched/idle, x86: Switch from TS_POLLING to TIF_POLLING_NRFLAG"). Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Jiri Kosina <jkosina@suse.cz> Link: http://lkml.kernel.org/r/1404138749.2978.6.camel@x41 Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-07-16s390: fix restore of invalid floating-point-controlMartin Schwidefsky1-2/+2
The fixup of the inline assembly to restore the floating-point-control register needs to check for instruction address *after* the lfcp instruction as the specification and data exceptions are suppresssing. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-07-16s390/ptrace: fix PSW mask checkMartin Schwidefsky1-2/+10
The PSW mask check of the PTRACE_POKEUSR_AREA command is incorrect. The PSW_MASK_USER define contains the PSW_MASK_ASC bits, the ptrace interface accepts all combinations for the address-space-control bits. To protect the kernel space the PSW mask check in ptrace needs to reject the address-space-control bit combination for home space. Fixes CVE-2014-3534 Cc: stable@vger.kernel.org Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-07-16s390/MSI: Use standard mask and unmask funtionsYijing Wang1-43/+6
MSI irqchip in s390 has its own mask and unmask MSI irq functions, zpci_enable_irq() and zpci_disable_irq(). They mask and unmask MSI irq in standard ways, no arch special. MSI driver provides two global standard functions mask_msi_irq() and unmask_msi_irq(). Local zpci_enable_irq() and zpci_disable_irq() are almost the same as the standard two. the difference is local mask/unmask functions read the mask status before mask and unmask everytime. Then change the value and rewrite to hardware. In standard functions, save the mask status after mask and unmask msi irq, and use the cached status to change the mask status. When we mask or unmask a MSI irq, we always cache its mask status except we know need not to cache it, like in pci_msi_shutdown. So use the standard functions to replace the local is safe. Signed-off-by: Yijing Wang <wangyijing@huawei.com> [sebott: fixed inverted function pointers] Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-07-16s390: require mvcos facility, not tod clock steering facilityDavid Hildenbrand1-3/+3
Inlined uaccess functions require the mvcos facility (bit 27), not the tod clock steering facility (bit 28) for z10 and newer machines. Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-07-15Merge tag 'xtensa-for-next-20140715' of git://github.com/jcmvbkbc/linux-xtensa into for_nextChris Zankel3-25/+139
Xtensa fixes for 3.16: - resolve FIXMEs in double exception handler for window overflow. This fix makes native building of linux on xtensa host possible; - fix sysmem region removal issue introduced in 3.15.
2014-07-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds1-3/+7
Pull networking fixes from David Miller: 1) Bluetooth pairing fixes from Johan Hedberg. 2) ieee80211_send_auth() doesn't allocate enough tail room for the SKB, from Max Stepanov. 3) New iwlwifi chip IDs, from Oren Givon. 4) bnx2x driver reads wrong PCI config space MSI register, from Yijing Wang. 5) IPV6 MLD Query validation isn't strong enough, from Hangbin Liu. 6) Fix double SKB free in openvswitch, from Andy Zhou. 7) Fix sk_dst_set() being racey with UDP sockets, leading to strange crashes, from Eric Dumazet. 8) Interpret the NAPI budget correctly in the new systemport driver, from Florian Fainelli. 9) VLAN code frees percpu stats in the wrong place, leading to crashes in the get stats handler. From Eric Dumazet. 10) TCP sockets doing a repair can crash with a divide by zero, because we invoke tcp_push() with an MSS value of zero. Just skip that part of the sendmsg paths in repair mode. From Christoph Paasch. 11) IRQ affinity bug fixes in mlx4 driver from Amir Vadai. 12) Don't ignore path MTU icmp messages with a zero mtu, machines out there still spit them out, and all of our per-protocol handlers for PMTU can cope with it just fine. From Edward Allcutt. 13) Some NETDEV_CHANGE notifier invocations were not passing in the correct kind of cookie as the argument, from Loic Prylli. 14) Fix crashes in long multicast/broadcast reassembly, from Jon Paul Maloy. 15) ip_tunnel_lookup() doesn't interpret wildcard keys correctly, fix from Dmitry Popov. 16) Fix skb->sk assigned without taking a reference to 'sk' in appletalk, from Andrey Utkin. 17) Fix some info leaks in ULP event signalling to userspace in SCTP, from Daniel Borkmann. 18) Fix deadlocks in HSO driver, from Olivier Sobrie. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (93 commits) hso: fix deadlock when receiving bursts of data hso: remove unused workqueue net: ppp: don't call sk_chk_filter twice mlx4: mark napi id for gro_skb bonding: fix ad_select module param check net: pppoe: use correct channel MTU when using Multilink PPP neigh: sysctl - simplify address calculation of gc_* variables net: sctp: fix information leaks in ulpevent layer MAINTAINERS: update r8169 maintainer net: bcmgenet: fix RGMII_MODE_EN bit tipc: clear 'next'-pointer of message fragments before reassembly r8152: fix r8152_csum_workaround function be2net: set EQ DB clear-intr bit in be_open() GRE: enable offloads for GRE farsync: fix invalid memory accesses in fst_add_one() and fst_init_card() igb: do a reset on SR-IOV re-init if device is down igb: Workaround for i210 Errata 25: Slow System Clock usbnet: smsc95xx: add reset_resume function with reset operation dp83640: Always decode received status frames r8169: disable L23 ...
2014-07-14x86/espfix/xen: Fix allocation of pages for paravirt page tablesBoris Ostrovsky1-3/+2
init_espfix_ap() is currently off by one level when informing hypervisor that allocated pages will be used for ministacks' page tables. The most immediate effect of this on a PV guest is that if 'stack_page = __get_free_page()' returns a non-zeroed-out page the hypervisor will refuse to use it for a page table (which it shouldn't be anyway). This will result in warnings by both Xen and Linux. More importantly, a subsequent write to that page (again, by a PV guest) is likely to result in fatal page fault. Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: http://lkml.kernel.org/r/1404926298-5565-1-git-send-email-boris.ostrovsky@oracle.com Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: <stable@vger.kernel.org>
2014-07-14Merge tag 'efi-urgent' into x86/urgentH. Peter Anvin3-14/+52
* Remove a duplicate copy of linux_banner from the arm64 EFI stub which, apart from reducing code duplication also stops the arm64 stub being rebuilt every time make is invoked - Ard Biesheuvel * Fix the EFI fdt code to not report a boot error if UEFI is unavailable since booting without UEFI parameters is a valid use case for non-UEFI platforms - Catalin Marinas * Include a .bss section in the EFI boot stub PE/COFF headers to fix a memory corruption bug - Michael Brown Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-07-13Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds20-62/+153
Pull ARM SoC fixes from Olof Johansson: "This week's arm-soc fixes: - Another set of OMAP fixes * Clock fixes * Restart handling * PHY regulators * SATA hwmod data for DRA7 + Some trivial fixes and removal of a bit of dead code - Exynos fixes * A bunch of clock fixes * Some SMP fixes * Exynos multi-core timer: register as clocksource and fix ftrace. + a few other minor fixes There's also a couple more patches, and at91 fix for USB caused by common clock conversion, and more MAINTAINERS entries for shmobile. We're definitely switching to only regression fixes from here on out, we've been a little less strict than usual up until now" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (26 commits) ARM: at91: at91sam9x5: add clocks for usb device ARM: EXYNOS: Register cpuidle device only on exynos4210 and 5250 ARM: dts: Add clock property for mfc_pd in exynos5420 clk: exynos5420: Add IDs for clocks used in PD mfc ARM: EXYNOS: Add support for clock handling in power domain ARM: OMAP2+: Remove non working OMAP HDMI audio initialization ARM: imx: fix shared gate clock ARM: dts: Update the parent for Audss clocks in Exynos5420 ARM: EXYNOS: Update secondary boot addr for secure mode ARM: dts: Fix TI CPSW Phy mode selection on IGEP COM AQUILA. ARM: dts: am335x-evmsk: Enable the McASP FIFO for audio ARM: dts: am335x-evm: Enable the McASP FIFO for audio ARM: OMAP2+: Make GPMC skip disabled devices ARM: OMAP2+: create dsp device only on OMAP3 SoCs ARM: dts: dra7-evm: Make VDDA_1V8_PHY supply always on ARM: DRA7/AM43XX: fix header definition for omap44xx_restart ARM: OMAP2+: clock/dpll: fix _dpll_test_fint arithmetics overflow ARM: DRA7: hwmod: Add SYSCONFIG for usb_otg_ss ARM: DRA7: hwmod: Fixup SATA hwmod ARM: OMAP3: PRM/CM: Add back macros used by TI DSP/Bridge driver ...
2014-07-13Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds4-14/+34
Pull ARM fixes from Russell King: "Another round of fixes for ARM: - a set of kprobes fixes from Jon Medhurst - fix the revision checking for the L2 cache which wasn't noticed to have been broken" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: l2c: fix revision checking ARM: kprobes: Fix test code compilation errors for ARMv4 targets ARM: kprobes: Disallow instructions with PC and register specified shift ARM: kprobes: Prevent known test failures stopping other tests running
2014-07-13Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68kLinus Torvalds2-1/+4
Pull m68k fixes from Geert Uytterhoeven: "Summary: - Fix for a boot regression introduced in v3.16-rc1, - Fix for a build issue in -next" Christoph Hellwig questioned why mach_random_get_entropy should be exported to modules, and Geert explains that random_get_entropy() is called by at least the crypto layer and ends up using it on m68k. On most other architectures it just uses get_cycles() (which is typically inlined and doesn't need exporting), * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Export mach_random_get_entropy to modules m68k: Fix boot regression on machines with RAM at non-zero
2014-07-13Merge branch 'parisc-3.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linuxLinus Torvalds3-38/+13
Pull parisc fixes from Helge Deller: "The major patch in here is one which fixes the fanotify_mark() syscall in the compat layer of the 64bit parisc kernel. It went unnoticed so long, because the calling syntax when using a 64bit parameter in a 32bit syscall is quite complex and even worse, it may be even different if you call syscall() or the glibc wrapper. This patch makes the kernel accept the calling convention when called by the glibc wrapper. The other two patches are trivial and remove unused headers, #includes and adds the serial ports of the fastest C8000 workstation to the parisc-kernel internal hardware database" * 'parisc-3.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: drop unused defines and header includes parisc: fix fanotify_mark() syscall on 32bit compat kernel parisc: add serial ports of C8000/1GHz machine to hardware database
2014-07-13parisc: drop unused defines and header includesHelge Deller1-36/+0
Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # 3.13+
2014-07-13parisc: fix fanotify_mark() syscall on 32bit compat kernelHelge Deller2-1/+11
On parisc we can not use the existing compat implementation for fanotify_mark() because for the 64bit mask parameter the higher and lower 32bits are ordered differently than what the compat function expects from big endian architectures. Specifically: It finally turned out, that on hppa we end up with different assignments of parameters to kernel arguments depending on if we call the glibc wrapper function int fanotify_mark (int __fanotify_fd, unsigned int __flags, uint64_t __mask, int __dfd, const char *__pathname); or directly calling the syscall manually syscall(__NR_fanotify_mark, ...) Reason is, that the syscall() function is implemented as C-function and because we now have the sysno as first parameter in front of the other parameters the compiler will unexpectedly add an empty paramenter in front of the u64 value to ensure the correct calling alignment for 64bit values. This means, on hppa you can't simply use syscall() to call the kernel fanotify_mark() function directly, but you have to use the glibc function instead. This patch fixes the kernel in the hppa-arch specifc coding to adjust the parameters in a way as if userspace calls the glibc wrapper function fanotify_mark(). Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # 3.13+
2014-07-13parisc: add serial ports of C8000/1GHz machine to hardware databaseHelge Deller1-1/+2
Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # 3.13+
2014-07-12Merge tag 'samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixesOlof Johansson3-6/+66
Merge "Samsung fixes-3 for 3.16" from Kukjin Kim: Samsung fixes-3 for v3.16 - update the parent for Auudss clock because kernel will be hang during late boot if the parent clock is disabled in bootloader. - enable clk handing in power domain because while power domain on/off, its regarding clock source will be reset and it causes a problem so need to handle it. - add mux clocks to be used by power domain for exynos5420-mfc during power domain on/off and property in device tree also. - register cpuidle only for exynos4210 and exynos5250 because a system failure will be happened on other exynos SoCs. * tag 'samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: Register cpuidle device only on exynos4210 and 5250 ARM: dts: Add clock property for mfc_pd in exynos5420 clk: exynos5420: Add IDs for clocks used in PD mfc ARM: EXYNOS: Add support for clock handling in power domain ARM: dts: Update the parent for Audss clocks in Exynos5420 Signed-off-by: Olof Johansson <olof@lixom.net>