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[PATCH] powerpc: Add a is_kernel_addr() macro

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There's a bunch of code that compares an address with KERNELBASE to see if
it's a "kernel address", ie. >= KERNELBASE. The proper test is actually to
compare with PAGE_OFFSET, since we're going to change KERNELBASE soon.

So replace all of them with an is_kernel_addr() macro that does that.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Michael Ellerman
2005-12-04 18:39:15 +11:00
committed by Paul Mackerras
parent cd0ca2ce4b
commit 51fae6de24
9 changed files with 20 additions and 15 deletions
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4
arch/powerpc/oprofile/op_model_power4.c
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@ -252,7 +252,7 @@ static unsigned long get_pc(struct pt_regs *regs)
return (unsigned long)__va(pc);
/* Not sure where we were */
if (pc < KERNELBASE)
if (!is_kernel_addr(pc))
/* function descriptor madness */
return *((unsigned long *)kernel_unknown_bucket);
@ -264,7 +264,7 @@ static int get_kernel(unsigned long pc)
int is_kernel;
if (!mmcra_has_sihv) {
is_kernel = (pc >= KERNELBASE);
is_kernel = is_kernel_addr(pc);
} else {
unsigned long mmcra = mfspr(SPRN_MMCRA);
is_kernel = ((mmcra & MMCRA_SIPR) == 0);