Le 14/04/2017 à 15:31, Christophe Leroy a écrit :
As stated in the comment on top of transfer_to_handler(),
all callers set cr0.eq if the exception occurred in kernel mode
(i.e. MSR:PR = 0)
Therefore, it is not needed to do the test again
Indeed, all callers set cr0.eq as required .... except that some of
them just destroy it by inserting another test before calling
transfer_to_handler().
So this patch cannot be applied as is at the time being.
Christophe
Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr>
---
arch/powerpc/kernel/entry_32.S | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index a38600949f3a..0651a7438fa6 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -141,7 +141,6 @@ transfer_to_handler:
stw r2,GPR2(r11)
stw r12,_NIP(r11)
stw r9,_MSR(r11)
- andi. r2,r9,MSR_PR
mfctr r12
mfspr r2,SPRN_XER
stw r12,_CTR(r11)
