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| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2006-10-09 01:24:23 +0900 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2006-10-09 23:20:46 +0100 |
| commit | f431baa55abf8adeed0c718b51deacbc151f58f1 (patch) | |
| tree | fe0383328c1d8bcb0fae7e266a437b980a05a7f9 /arch/mips/kernel/smtc-asm.S | |
| parent | 441ee341ad63572f39cb8074e31806b5b1471d0b (diff) | |
| download | linux-stable-f431baa55abf8adeed0c718b51deacbc151f58f1.tar.gz linux-stable-f431baa55abf8adeed0c718b51deacbc151f58f1.tar.bz2 linux-stable-f431baa55abf8adeed0c718b51deacbc151f58f1.zip | |
[MIPS] ret_from_irq adjustment
Make sure that RA on top of interrupt stack is an address of ret_from_irq,
so that dump_stack etc. can trace info interrupted context.
Also this patch fixes except_vec_vi_handler and __smtc_ipi_vector which
seems broken.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/smtc-asm.S')
| -rw-r--r-- | arch/mips/kernel/smtc-asm.S | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/mips/kernel/smtc-asm.S b/arch/mips/kernel/smtc-asm.S index 76cb31d57482..1cb9441f1474 100644 --- a/arch/mips/kernel/smtc-asm.S +++ b/arch/mips/kernel/smtc-asm.S @@ -97,15 +97,12 @@ FEXPORT(__smtc_ipi_vector) SAVE_ALL CLI TRACE_IRQS_OFF - move a0,sp /* Function to be invoked passed stack pad slot 5 */ lw t0,PT_PADSLOT5(sp) /* Argument from sender passed in stack pad slot 4 */ - lw a1,PT_PADSLOT4(sp) - jalr t0 - nop - j ret_from_irq - nop + lw a0,PT_PADSLOT4(sp) + PTR_LA ra, _ret_from_irq + jr t0 /* * Called from idle loop to provoke processing of queued IPIs |