Commit e090aa80 authored Dec 08, 2009 by Benjamin Herrenschmidt

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



e821ea70 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>

parent bcd6acd5

arch/powerpc/kernel/vector.S

+1 −1

Original line number	Diff line number	Diff line
		@@ -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