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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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arch/powerpc/kernel/prom_init.c
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@@ -1994,7 +1994,7 @@ static void __init prom_check_initrd(unsigned long r3, unsigned long r4)
if (r3 && r4 && r4 != 0xdeadbeef) {
unsigned long val;
RELOC(prom_initrd_start) = (r3 >= KERNELBASE) ? __pa(r3) : r3;
RELOC(prom_initrd_start) = is_kernel_addr(r3) ? __pa(r3) : r3;
RELOC(prom_initrd_end) = RELOC(prom_initrd_start) + r4;
val = RELOC(prom_initrd_start);