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powerpc: Fix usage of 64-bit instruction in 32-bit altivec code

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e821ea70f3 introduced a bug by copying
some 64-bit originated code as-is to be used by both 32 and 64-bit
but this code contains a 64-bit ony "cmpdi" instruction.

This changes it to cmpwi, which is fine since VRSAVE can only contains
a 32-bit value anyway.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@kernel.org>
This commit is contained in:
Benjamin Herrenschmidt 2009-12-08 18:45:45 +00:00
parent bcd6acd51f
commit e090aa8032
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/kernel/vector.S
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@ -58,7 +58,7 @@ _GLOBAL(load_up_altivec)
* all 1's
*/
mfspr r4,SPRN_VRSAVE
cmpdi 0,r4,0
cmpwi 0,r4,0
bne+ 1f
li r4,-1
mtspr SPRN_VRSAVE,r4