We already got the value of current_thread_info and ti_flags and store
them into r9 and r4 respectively before jumping to resume_kernel. So
there is no reason to reload them again.
Signed-off-by: Kevin Hao <haoke...@gmail.com>
---
arch/powerpc/kernel/entry_64.S | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index c04cdf7..2fe620f 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -673,9 +673,7 @@ _GLOBAL(ret_from_except_lite)
resume_kernel:
/* check current_thread_info, _TIF_EMULATE_STACK_STORE */
- CURRENT_THREAD_INFO(r9, r1)
- ld r8,TI_FLAGS(r9)
- andis. r8,r8,_TIF_EMULATE_STACK_STORE@h
+ andis. r8,r4,_TIF_EMULATE_STACK_STORE@h
beq+ 1f
addi r8,r1,INT_FRAME_SIZE /* Get the kprobed function entry */
--
1.8.3.1
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