13 files changed, 59 insertions, 27 deletions

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/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/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/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
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 972b2d2b8401..a1b3da6bad5c 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -1134,7 +1134,7 @@ static int vpe_release(struct inode *inode, struct file *filp)
 
         /* It's good to be able to run the SP and if it chokes have a look at
            the /dev/rt?. But if we reset the pointer to the shared struct we
-           loose what has happened. So perhaps if garbage is sent to the vpe
+           lose what has happened. So perhaps if garbage is sent to the vpe
            device, use it as a trigger for the reset. Hopefully a nice
            executable will be along shortly. */
         if (ret < 0)
diff --git a/arch/powerpc/kernel/cpu_setup_44x.S b/arch/powerpc/kernel/cpu_setup_44x.S
index 31c18b52affb..10b4ab1008af 100644
--- a/arch/powerpc/kernel/cpu_setup_44x.S
+++ b/arch/powerpc/kernel/cpu_setup_44x.S
@@ -40,6 +40,7 @@ _GLOBAL(__setup_cpu_460gt)
         mtlr    r4
         blr
 
+_GLOBAL(__setup_cpu_440x5)
 _GLOBAL(__setup_cpu_440gx)
 _GLOBAL(__setup_cpu_440spe)
         b       __fixup_440A_mcheck
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index b1eb834bc0fc..7e8719504f39 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -39,6 +39,7 @@ extern void __setup_cpu_440epx(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_440gx(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_440grx(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_440spe(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_440x5(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_460ex(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_460gt(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_603(unsigned long offset, struct cpu_spec* spec);
@@ -1500,6 +1501,8 @@ static struct cpu_spec __initdata cpu_specs[] = {
                 .cpu_user_features      = COMMON_USER_BOOKE,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
+                .cpu_setup              = __setup_cpu_440x5,
+                .machine_check          = machine_check_440A,
                 .platform               = "ppc440",
         },
         { /* 460EX */
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index 19d579d74d27..8f44ebb0dec8 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -16,6 +16,8 @@
 #include <linux/slab.h>
 #include <linux/syscalls.h>
 #include <linux/utsname.h>
+#include <linux/socket.h>
+#include <linux/un.h>
 #include <linux/workqueue.h>
 #include <linux/mutex.h>
 #include <asm/uaccess.h>
@@ -785,7 +787,7 @@ static int __init mconsole_init(void)
         /* long to avoid size mismatch warnings from gcc */
         long sock;
         int err;
-        char file[256];
+        char file[UNIX_PATH_MAX];
 
         if (umid_file_name("mconsole", file, sizeof(file)))
                 return -1;
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 5662e226b0c9..a7b6dec6fc3f 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -344,7 +344,7 @@ static int iommu_map(struct protection_domain *dom,
         u64 __pte, *pte, *page;
 
         bus_addr  = PAGE_ALIGN(bus_addr);
-        phys_addr = PAGE_ALIGN(bus_addr);
+        phys_addr = PAGE_ALIGN(phys_addr);
 
         /* only support 512GB address spaces for now */
         if (bus_addr > IOMMU_MAP_SIZE_L3 || !(prot & IOMMU_PROT_MASK))
@@ -600,7 +600,7 @@ static void dma_ops_free_pagetable(struct dma_ops_domain *dma_dom)
                         continue;
 
                 p2 = IOMMU_PTE_PAGE(p1[i]);
-                for (j = 0; j < 512; ++i) {
+                for (j = 0; j < 512; ++j) {
                         if (!IOMMU_PTE_PRESENT(p2[j]))
                                 continue;
                         p3 = IOMMU_PTE_PAGE(p2[j]);
@@ -910,7 +910,7 @@ static void dma_ops_domain_unmap(struct amd_iommu *iommu,
         if (address >= dom->aperture_size)
                 return;
 
-        WARN_ON(address & 0xfffULL || address > dom->aperture_size);
+        WARN_ON(address & ~PAGE_MASK || address >= dom->aperture_size);
 
         pte  = dom->pte_pages[IOMMU_PTE_L1_INDEX(address)];
         pte += IOMMU_PTE_L0_INDEX(address);
@@ -922,8 +922,8 @@ static void dma_ops_domain_unmap(struct amd_iommu *iommu,
 
 /*
  * This function contains common code for mapping of a physically
- * contiguous memory region into DMA address space. It is uses by all
- * mapping functions provided by this IOMMU driver.
+ * contiguous memory region into DMA address space. It is used by all
+ * mapping functions provided with this IOMMU driver.
  * Must be called with the domain lock held.
  */
 static dma_addr_t __map_single(struct device *dev,
@@ -983,7 +983,8 @@ static void __unmap_single(struct amd_iommu *iommu,
         dma_addr_t i, start;
         unsigned int pages;
 
-        if ((dma_addr == 0) || (dma_addr + size > dma_dom->aperture_size))
+        if ((dma_addr == bad_dma_address) ||
+            (dma_addr + size > dma_dom->aperture_size))
                 return;
 
         pages = iommu_num_pages(dma_addr, size, PAGE_SIZE);
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index 0e9f1982b1dd..95777b0faa73 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -7,7 +7,8 @@
 
 #include <asm/paravirt.h>
 
-static void default_spin_lock_flags(struct raw_spinlock *lock, unsigned long flags)
+static inline void
+default_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags)
 {
         __raw_spin_lock(lock);
 }