As syscalls are now handled via a fast entry path, syscall related
actions can be removed from the generic transfer_to_handler path.
Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr>
---
arch/powerpc/kernel/entry_32.S | 19 -------------------
1 file changed, 19 deletions(-)
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index dc58fec51ed6..e65c3e70c648 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -217,7 +217,6 @@ transfer_to_handler_cont:
*/
tophys(r12, r1)
lwz r12,_MSR(r12)
- xor r12,r10,r12
andi. r12,r12,MSR_EE
bne 1f
@@ -258,9 +257,6 @@ reenable_mmu:
* the rest is restored from the exception frame.
*/
- /* Are we enabling or disabling interrupts ? */
- andi. r0,r10,MSR_EE
-
stwu r1,-32(r1)
stw r9,8(r1)
stw r11,12(r1)
@@ -268,8 +264,6 @@ reenable_mmu:
stw r4,20(r1)
stw r5,24(r1)
- bne- 0f
-
/* If we are disabling interrupts (normal case), simply log it with
* lockdep
*/
@@ -287,19 +281,6 @@ reenable_mmu:
mtctr r11
mtlr r9
bctr /* jump to handler */
-
- /* If we are enabling interrupt, this is a syscall. They shouldn't
- * happen while interrupts are disabled, so let's do a warning here.
- */
-0: trap
- EMIT_BUG_ENTRY 0b,__FILE__,__LINE__, BUGFLAG_WARNING
- bl trace_hardirqs_on
-
- /* Now enable for real */
- mfmsr r10
- ori r10,r10,MSR_EE
- mtmsr r10
- b 2b
#endif /* CONFIG_TRACE_IRQFLAGS */
#if defined (CONFIG_PPC_BOOK3S_32) || defined(CONFIG_E500)
--
2.13.3
