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-rw-r--r--arch/powerpc/include/asm/processor.h2
-rw-r--r--arch/powerpc/kernel/traps.c1
-rw-r--r--arch/powerpc/math-emu/math.c4
3 files changed, 4 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index eae16facc390..ad36e8521577 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -413,6 +413,8 @@ extern int fix_alignment(struct pt_regs *);
#define NET_IP_ALIGN 0
#endif
+int do_mathemu(struct pt_regs *regs);
+
#endif /* __KERNEL__ */
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_PROCESSOR_H */
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 286b3a6b5c5e..76d17492e0e5 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1405,7 +1405,6 @@ int is_valid_bugaddr(unsigned long addr)
static int emulate_math(struct pt_regs *regs)
{
int ret;
- extern int do_mathemu(struct pt_regs *regs);
ret = do_mathemu(regs);
if (ret >= 0)
diff --git a/arch/powerpc/math-emu/math.c b/arch/powerpc/math-emu/math.c
index 30b4b69c6941..327165f26ca6 100644
--- a/arch/powerpc/math-emu/math.c
+++ b/arch/powerpc/math-emu/math.c
@@ -225,7 +225,7 @@ record_exception(struct pt_regs *regs, int eflag)
int
do_mathemu(struct pt_regs *regs)
{
- void *op0 = 0, *op1 = 0, *op2 = 0, *op3 = 0;
+ void *op0 = NULL, *op1 = NULL, *op2 = NULL, *op3 = NULL;
unsigned long pc = regs->nip;
signed short sdisp;
u32 insn = 0;
@@ -234,7 +234,7 @@ do_mathemu(struct pt_regs *regs)
int type = 0;
int eflag, trap;
- if (get_user(insn, (u32 *)pc))
+ if (get_user(insn, (u32 __user *)pc))
return -EFAULT;
switch (insn >> 26) {