6 files changed, 15 insertions, 12 deletions

diff --git a/Documentation/arm/00-INDEX b/Documentation/arm/00-INDEX
index d753fe59a248..2c6a3b38967e 100644
--- a/Documentation/arm/00-INDEX
+++ b/Documentation/arm/00-INDEX
@@ -16,5 +16,7 @@ empeg
         - Empeg documentation
 mem_alignment
         - alignment abort handler documentation
+memory.txt
+        - description of the virtual memory layout
 nwfpe
         - NWFPE floating point emulator documentation
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 9a340e790da5..2b84f78d7b0f 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -242,6 +242,15 @@ get_branch_address(struct task_struct *child, unsigned long pc, unsigned long in
                  */
                 long aluop1, aluop2, ccbit;
 
+                if ((insn & 0x0fffffd0) == 0x012fff10) {
+                        /*
+                         * bx or blx
+                         */
+                        alt = get_user_reg(child, insn & 15);
+                        break;
+                }
+
+
                 if ((insn & 0xf000) != 0xf000)
                         break;
 
diff --git a/drivers/char/watchdog/mpcore_wdt.c b/drivers/char/watchdog/mpcore_wdt.c
index 9defcf861b67..b4d843489881 100644
--- a/drivers/char/watchdog/mpcore_wdt.c
+++ b/drivers/char/watchdog/mpcore_wdt.c
@@ -180,10 +180,6 @@ static ssize_t mpcore_wdt_write(struct file *file, const char *data, size_t len,
 {
         struct mpcore_wdt *wdt = file->private_data;
 
-        /*  Can't seek (pwrite) on this device  */
-        if (ppos != &file->f_pos)
-                return -ESPIPE;
-
         /*
          *      Refresh the timer.
          */
diff --git a/include/asm-arm/arch-pxa/irq.h b/include/asm-arm/arch-pxa/irq.h
index d770e4b37ae1..48c60f5eff6a 100644
--- a/include/asm-arm/arch-pxa/irq.h
+++ b/include/asm-arm/arch-pxa/irq.h
@@ -12,8 +12,3 @@
 
 #define fixup_irq(x)    (x)
 
-/*
- * This prototype is required for cascading of multiplexed interrupts.
- * Since it doesn't exist elsewhere, we'll put it here for now.
- */
-extern void do_IRQ(int irq, struct pt_regs *regs);
diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h
index ae69db4a1010..0cf4d4f99600 100644
--- a/include/asm-arm/io.h
+++ b/include/asm-arm/io.h
@@ -42,9 +42,9 @@ extern void __raw_writesb(void __iomem *addr, const void *data, int bytelen);
 extern void __raw_writesw(void __iomem *addr, const void *data, int wordlen);
 extern void __raw_writesl(void __iomem *addr, const void *data, int longlen);
 
-extern void __raw_readsb(void __iomem *addr, void *data, int bytelen);
-extern void __raw_readsw(void __iomem *addr, void *data, int wordlen);
-extern void __raw_readsl(void __iomem *addr, void *data, int longlen);
+extern void __raw_readsb(const void __iomem *addr, void *data, int bytelen);
+extern void __raw_readsw(const void __iomem *addr, void *data, int wordlen);
+extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
 
 #define __raw_writeb(v,a)       (__chk_io_ptr(a), *(volatile unsigned char __force  *)(a) = (v))
 #define __raw_writew(v,a)       (__chk_io_ptr(a), *(volatile unsigned short __force *)(a) = (v))
diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h
index a547ee598c6c..3e572364ee73 100644
--- a/include/asm-arm/memory.h
+++ b/include/asm-arm/memory.h
@@ -122,6 +122,7 @@ static inline void *phys_to_virt(unsigned long x)
  */
 #define __pa(x)                 __virt_to_phys((unsigned long)(x))
 #define __va(x)                 ((void *)__phys_to_virt((unsigned long)(x)))
+#define pfn_to_kaddr(pfn)       __va((pfn) << PAGE_SHIFT)
 
 /*
  * Virtual <-> DMA view memory address translations