[MIPS] Stacktrace build-fix and improvement

Fix build error due to stacktrace API change.  Now save_stack_trace()
tries to save all kernel context, including interrupts and exception.
Also some asm code are changed a bit so that we can detect the end of
current context easily.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/mips/mm/tlbex-fault.S b/arch/mips/mm/tlbex-fault.S
index 9e7f4175b493..e99eaa1fbedc 100644
--- a/arch/mips/mm/tlbex-fault.S
+++ b/arch/mips/mm/tlbex-fault.S
@@ -19,8 +19,8 @@
         move    a0, sp
         REG_S   a2, PT_BVADDR(sp)
         li      a1, \write
-        jal     do_page_fault
-        j       ret_from_exception
+        PTR_LA  ra, ret_from_exception
+        j       do_page_fault
         END(tlb_do_page_fault_\write)
         .endm