powerpc: 32 bit getcpu VDSO function uses 64 bit instructions
authorAnton Blanchard <anton@samba.org>
Wed, 26 Nov 2014 21:11:28 +0000 (08:11 +1100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 16 Dec 2014 17:09:43 +0000 (09:09 -0800)
commit 152d44a853e42952f6c8a504fb1f8eefd21fd5fd upstream.

I used some 64 bit instructions when adding the 32 bit getcpu VDSO
function. Fix it.

Fixes: 18ad51dd342a ("powerpc: Add VDSO version of getcpu")
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/powerpc/kernel/vdso32/getcpu.S

index 47afd08c90f7fd3f934beafb9398d106099e7f40..fe7e97a1aad9922b619c6511596d09d3cc2034ac 100644 (file)
@@ -30,8 +30,8 @@
 V_FUNCTION_BEGIN(__kernel_getcpu)
   .cfi_startproc
        mfspr   r5,SPRN_USPRG3
-       cmpdi   cr0,r3,0
-       cmpdi   cr1,r4,0
+       cmpwi   cr0,r3,0
+       cmpwi   cr1,r4,0
        clrlwi  r6,r5,16
        rlwinm  r7,r5,16,31-15,31-0
        beq     cr0,1f