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-rw-r--r--arch/arm/common/sa1111.c2
-rw-r--r--arch/arm/include/asm/bitops.h16
-rw-r--r--arch/arm/include/asm/processor.h2
-rw-r--r--arch/arm/kernel/armksyms.c4
-rw-r--r--arch/arm/kernel/traps.c1
-rw-r--r--arch/arm/mach-omap1/io.c2
-rw-r--r--arch/arm/mach-pxa/include/mach/reset.h5
-rw-r--r--arch/arm/mm/alignment.c26
-rw-r--r--arch/arm/mm/fault.c1
-rw-r--r--arch/arm/plat-omap/include/mach/omapfb.h4
-rw-r--r--arch/arm/plat-omap/sram.c8
-rw-r--r--arch/arm/plat-orion/pcie.c2
12 files changed, 49 insertions, 24 deletions
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 47ccec95f3e8..ef12794c3c68 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -630,7 +630,7 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq)
return -ENOMEM;
sachip->clk = clk_get(me, "SA1111_CLK");
- if (!sachip->clk) {
+ if (IS_ERR(sachip->clk)) {
ret = PTR_ERR(sachip->clk);
goto err_free;
}
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
index 9a1db20e032a..63a481fbbed4 100644
--- a/arch/arm/include/asm/bitops.h
+++ b/arch/arm/include/asm/bitops.h
@@ -237,6 +237,7 @@ extern int _find_next_bit_be(const unsigned long *p, int size, int offset);
#if __LINUX_ARM_ARCH__ < 5
#include <asm-generic/bitops/ffz.h>
+#include <asm-generic/bitops/__fls.h>
#include <asm-generic/bitops/__ffs.h>
#include <asm-generic/bitops/fls.h>
#include <asm-generic/bitops/ffs.h>
@@ -277,16 +278,19 @@ static inline int constant_fls(int x)
* the clz instruction for much better code efficiency.
*/
-#define __fls(x) \
- ( __builtin_constant_p(x) ? constant_fls(x) : \
- ({ int __r; asm("clz\t%0, %1" : "=r"(__r) : "r"(x) : "cc"); 32-__r; }) )
-
-/* Implement fls() in C so that 64-bit args are suitably truncated */
static inline int fls(int x)
{
- return __fls(x);
+ int ret;
+
+ if (__builtin_constant_p(x))
+ return constant_fls(x);
+
+ asm("clz\t%0, %1" : "=r" (ret) : "r" (x) : "cc");
+ ret = 32 - ret;
+ return ret;
}
+#define __fls(x) (fls(x) - 1)
#define ffs(x) ({ unsigned long __t = (x); fls(__t & -__t); })
#define __ffs(x) (ffs(x) - 1)
#define ffz(x) __ffs( ~(x) )
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 517a4d6ffc74..6ff33790f47b 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -23,7 +23,7 @@
#include <asm/types.h>
#ifdef __KERNEL__
-#define STACK_TOP ((current->personality == PER_LINUX_32BIT) ? \
+#define STACK_TOP ((current->personality & ADDR_LIMIT_32BIT) ? \
TASK_SIZE : TASK_SIZE_26)
#define STACK_TOP_MAX TASK_SIZE
#endif
diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index c74f766ffc12..23af3c972c9a 100644
--- a/arch/arm/kernel/armksyms.c
+++ b/arch/arm/kernel/armksyms.c
@@ -115,6 +115,8 @@ EXPORT_SYMBOL(__strnlen_user);
EXPORT_SYMBOL(__strncpy_from_user);
#ifdef CONFIG_MMU
+EXPORT_SYMBOL(copy_page);
+
EXPORT_SYMBOL(__copy_from_user);
EXPORT_SYMBOL(__copy_to_user);
EXPORT_SYMBOL(__clear_user);
@@ -181,8 +183,6 @@ EXPORT_SYMBOL(_find_first_bit_be);
EXPORT_SYMBOL(_find_next_bit_be);
#endif
-EXPORT_SYMBOL(copy_page);
-
#ifdef CONFIG_FUNCTION_TRACER
EXPORT_SYMBOL(mcount);
#endif
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 57e6874d0b80..79abc4ddc0cf 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -18,6 +18,7 @@
#include <linux/personality.h>
#include <linux/kallsyms.h>
#include <linux/delay.h>
+#include <linux/hardirq.h>
#include <linux/init.h>
#include <linux/uaccess.h>
diff --git a/arch/arm/mach-omap1/io.c b/arch/arm/mach-omap1/io.c
index b3bd8ca85118..4c3e582f3d3c 100644
--- a/arch/arm/mach-omap1/io.c
+++ b/arch/arm/mach-omap1/io.c
@@ -128,7 +128,7 @@ void __init omap1_map_common_io(void)
* Common low-level hardware init for omap1. This should only get called from
* board specific init.
*/
-void __init omap1_init_common_hw()
+void __init omap1_init_common_hw(void)
{
/* REVISIT: Refer to OMAP5910 Errata, Advisory SYS_1: "Timeout Abort
* on a Posted Write in the TIPB Bridge".
diff --git a/arch/arm/mach-pxa/include/mach/reset.h b/arch/arm/mach-pxa/include/mach/reset.h
index 7b8842cfa5fc..31e6a7b6ad80 100644
--- a/arch/arm/mach-pxa/include/mach/reset.h
+++ b/arch/arm/mach-pxa/include/mach/reset.h
@@ -12,9 +12,8 @@ extern void clear_reset_status(unsigned int mask);
/**
* init_gpio_reset() - register GPIO as reset generator
- *
- * @gpio - gpio nr
- * @output - set gpio as out/low instead of input during normal work
+ * @gpio: gpio nr
+ * @output: set gpio as out/low instead of input during normal work
*/
extern int init_gpio_reset(int gpio, int output);
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index 133e65d166b3..2d5884ce0435 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -70,6 +70,10 @@ static unsigned long ai_dword;
static unsigned long ai_multi;
static int ai_usermode;
+#define UM_WARN (1 << 0)
+#define UM_FIXUP (1 << 1)
+#define UM_SIGNAL (1 << 2)
+
#ifdef CONFIG_PROC_FS
static const char *usermode_action[] = {
"ignored",
@@ -754,7 +758,7 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
user:
ai_user += 1;
- if (ai_usermode & 1)
+ if (ai_usermode & UM_WARN)
printk("Alignment trap: %s (%d) PC=0x%08lx Instr=0x%0*lx "
"Address=0x%08lx FSR 0x%03x\n", current->comm,
task_pid_nr(current), instrptr,
@@ -762,10 +766,10 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
thumb_mode(regs) ? tinstr : instr,
addr, fsr);
- if (ai_usermode & 2)
+ if (ai_usermode & UM_FIXUP)
goto fixup;
- if (ai_usermode & 4)
+ if (ai_usermode & UM_SIGNAL)
force_sig(SIGBUS, current);
else
set_cr(cr_no_alignment);
@@ -796,6 +800,22 @@ static int __init alignment_init(void)
res->write_proc = proc_alignment_write;
#endif
+ /*
+ * ARMv6 and later CPUs can perform unaligned accesses for
+ * most single load and store instructions up to word size.
+ * LDM, STM, LDRD and STRD still need to be handled.
+ *
+ * Ignoring the alignment fault is not an option on these
+ * CPUs since we spin re-faulting the instruction without
+ * making any progress.
+ */
+ if (cpu_architecture() >= CPU_ARCH_ARMv6 && (cr_alignment & CR_U)) {
+ cr_alignment &= ~CR_A;
+ cr_no_alignment &= ~CR_A;
+ set_cr(cr_alignment);
+ ai_usermode = UM_FIXUP;
+ }
+
hook_fault_code(1, do_alignment, SIGILL, "alignment exception");
hook_fault_code(3, do_alignment, SIGILL, "alignment exception");
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 2df8d9facf57..22c9530e91e2 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/signal.h>
#include <linux/mm.h>
+#include <linux/hardirq.h>
#include <linux/init.h>
#include <linux/kprobes.h>
#include <linux/uaccess.h>
diff --git a/arch/arm/plat-omap/include/mach/omapfb.h b/arch/arm/plat-omap/include/mach/omapfb.h
index ec67fb428607..7b74d1255e0b 100644
--- a/arch/arm/plat-omap/include/mach/omapfb.h
+++ b/arch/arm/plat-omap/include/mach/omapfb.h
@@ -353,8 +353,8 @@ struct omapfb_device {
u32 pseudo_palette[17];
struct lcd_panel *panel; /* LCD panel */
- struct lcd_ctrl *ctrl; /* LCD controller */
- struct lcd_ctrl *int_ctrl; /* internal LCD ctrl */
+ const struct lcd_ctrl *ctrl; /* LCD controller */
+ const struct lcd_ctrl *int_ctrl; /* internal LCD ctrl */
struct lcd_ctrl_extif *ext_if; /* LCD ctrl external
interface */
struct device *dev;
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index 9f9a921829c0..dcd9d16da2e9 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -255,7 +255,7 @@ void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl)
if (!_omap_sram_reprogram_clock)
omap_sram_error();
- return _omap_sram_reprogram_clock(dpllctl, ckctl);
+ _omap_sram_reprogram_clock(dpllctl, ckctl);
}
int __init omap1_sram_init(void)
@@ -282,8 +282,8 @@ void omap2_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
if (!_omap2_sram_ddr_init)
omap_sram_error();
- return _omap2_sram_ddr_init(slow_dll_ctrl, fast_dll_ctrl,
- base_cs, force_unlock);
+ _omap2_sram_ddr_init(slow_dll_ctrl, fast_dll_ctrl,
+ base_cs, force_unlock);
}
static void (*_omap2_sram_reprogram_sdrc)(u32 perf_level, u32 dll_val,
@@ -294,7 +294,7 @@ void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type)
if (!_omap2_sram_reprogram_sdrc)
omap_sram_error();
- return _omap2_sram_reprogram_sdrc(perf_level, dll_val, mem_type);
+ _omap2_sram_reprogram_sdrc(perf_level, dll_val, mem_type);
}
static u32 (*_omap2_set_prcm)(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass);
diff --git a/arch/arm/plat-orion/pcie.c b/arch/arm/plat-orion/pcie.c
index 883902fead89..d41d41d78ad9 100644
--- a/arch/arm/plat-orion/pcie.c
+++ b/arch/arm/plat-orion/pcie.c
@@ -35,7 +35,7 @@
#define PCIE_CONF_REG(r) ((((r) & 0xf00) << 16) | ((r) & 0xfc))
#define PCIE_CONF_BUS(b) (((b) & 0xff) << 16)
#define PCIE_CONF_DEV(d) (((d) & 0x1f) << 11)
-#define PCIE_CONF_FUNC(f) (((f) & 0x3) << 8)
+#define PCIE_CONF_FUNC(f) (((f) & 0x7) << 8)
#define PCIE_CONF_DATA_OFF 0x18fc
#define PCIE_MASK_OFF 0x1910
#define PCIE_CTRL_OFF 0x1a00
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.