powerpc: Fixup oddity in entry_32.S

When I "fixed" the CONFIG_TRACE_IRQFLAGS case on interrupt entry,
I screwed up a little bit with the test for user space vs. kernel.

The code is fine, there's just some dead code around it. I basically
removed the test and always create the added stack frame whether
coming from user or kernel since in any case we do need to save
a bunch of volatile registers or bad things would happen (we can
take page faults in the kernel for example).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index bad42e3..5207d5a 100644 (file)
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -226,13 +226,7 @@ reenable_mmu:                              /* re-enable mmu so we can */
        stw     r3,16(r1)
        stw     r4,20(r1)
        stw     r5,24(r1)
-       andi.   r12,r12,MSR_PR
-       b       11f
        bl      trace_hardirqs_off
-       b       12f
-11:
-       bl      trace_hardirqs_off
-12:
        lwz     r5,24(r1)
        lwz     r4,20(r1)
        lwz     r3,16(r1)