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authorAnton Blanchard <anton@samba.org>2013-09-23 06:04:48 +0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-10-11 09:48:36 +0400
commita5841a46022e1ebe97d4c926c32ef4e9acec96a7 (patch)
tree5493286829cc5510302b630b49ed0e6654594b2b /arch/powerpc/kernel/align.c
parentc324496456208e4a6a377d8a36b8fad76d004c7f (diff)
downloadlinux-a5841a46022e1ebe97d4c926c32ef4e9acec96a7.tar.xz
powerpc: Alignment handler shouldn't access VSX registers with TS_FPR
The TS_FPR macro selects the FPR component of a VSX register (the high doubleword). emulate_vsx is using this macro to get the address of the associated VSX register. This happens to work on big endian, but fails on little endian. Replace it with an explicit array access. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/align.c')
-rw-r--r--arch/powerpc/kernel/align.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index 25d8d8b4eaf9..3049bd00e757 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -650,7 +650,7 @@ static int emulate_vsx(unsigned char __user *addr, unsigned int reg,
flush_vsx_to_thread(current);
if (reg < 32)
- ptr = (char *) &current->thread.TS_FPR(reg);
+ ptr = (char *) &current->thread.fpr[reg][0];
else
ptr = (char *) &current->thread.vr[reg - 32];