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authorMichal Simek <monstr@monstr.eu>2011-05-23 11:38:19 +0200
committerMichal Simek <monstr@monstr.eu>2012-10-04 18:56:39 +0200
commit94fda49a948a5999699359313a2f857f9d11ff19 (patch)
tree795de5ee99e5d92437ad1bd992cae4129f41ad3b /arch/microblaze/kernel
parentc74c8b1dcbaa890a064a5892e29cec5ce42d5b84 (diff)
downloadlinux-linaro-stable-94fda49a948a5999699359313a2f857f9d11ff19.tar.gz
Revert "microblaze_mmu_v2: Update signal returning address"
This reverts commit 8b28626a6b1522b39f75d0bf80d5dec23c931f5a. Offset -8 is wrong because when it is applied then one instruction before brki r14, 8 is called again when we return. Offset -4 is correct and brki instruction is called again. This change came from ancient MMU kernel. Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze/kernel')
-rw-r--r--arch/microblaze/kernel/signal.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c
index 76b9722557db..c1220dbf87cd 100644
--- a/arch/microblaze/kernel/signal.c
+++ b/arch/microblaze/kernel/signal.c
@@ -290,15 +290,7 @@ handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler)
case -ERESTARTNOINTR:
do_restart:
/* offset of 4 bytes to re-execute trap (brki) instruction */
-#ifndef CONFIG_MMU
regs->pc -= 4;
-#else
- /* offset of 8 bytes required = 4 for rtbd
- offset, plus 4 for size of
- "brki r14,8"
- instruction. */
- regs->pc -= 8;
-#endif
break;
}
}