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authorAnton Blanchard <anton@samba.org>2013-09-23 12:04:43 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-10-11 16:48:32 +1100
commite871c6bbf66c1b44af0fb925427e957301e2e1ff (patch)
tree8f3d994b7ffab062c343c8f2f8010248acda5eb3 /arch/powerpc/kernel/signal_64.c
parentef1967ff875d58c290108f9c6872a53a79855c4b (diff)
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powerpc: Reset MSR_LE on signal entry
We always take signals in big endian which is wrong. Signals should be taken in native endian. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/signal_64.c')
-rw-r--r--arch/powerpc/kernel/signal_64.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index f93ec2835a13..8b51b0278106 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -773,8 +773,9 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
/* Set up "regs" so we "return" to the signal handler. */
err |= get_user(regs->nip, &funct_desc_ptr->entry);
- /* enter the signal handler in big-endian mode */
+ /* enter the signal handler in native-endian mode */
regs->msr &= ~MSR_LE;
+ regs->msr |= (MSR_KERNEL & MSR_LE);
regs->gpr[1] = newsp;
err |= get_user(regs->gpr[2], &funct_desc_ptr->toc);
regs->gpr[3] = signr;