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Subject[PATCH] powerpc/booke: fix fast syscall entry on SMP
Date
Use r10 instead of r9 to calculate CPU offset as r9 contains
the value from SRR1 which is used later.

Fixes: 1a4b739bbb4f ("powerpc/32: implement fast entry for syscalls on BOOKE")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
arch/powerpc/kernel/head_booke.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h
index dec0912a6508..2ae635df9026 100644
--- a/arch/powerpc/kernel/head_booke.h
+++ b/arch/powerpc/kernel/head_booke.h
@@ -145,9 +145,9 @@ ALT_FTR_SECTION_END_IFSET(CPU_FTR_EMB_HV)
tophys(r11,r11)
addi r11,r11,global_dbcr0@l
#ifdef CONFIG_SMP
- lwz r9,TASK_CPU(r2)
- slwi r9,r9,3
- add r11,r11,r9
+ lwz r10, TASK_CPU(r2)
+ slwi r10, r10, 3
+ add r11, r11, r10
#endif
lwz r12,0(r11)
mtspr SPRN_DBCR0,r12
--
2.13.3
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