[MIPS] DECstation: Fix irq handling

When I post a patch (commit f431baa55abf8adeed0c718b51deacbc151f58f1),
I just tried to not change behavior of existing codes, but it seems
dec/int-handler.S had been broken since its previous commit
937a801576f954bd030d7c4a5a94571710d87c0b.

The caller of plat_irq_dispatch do setup/restore TI_REGS($28), so
dec's plat_irq_dispatch should not do it, and there is no need to
adjust RA.

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

diff --git a/arch/mips/dec/int-handler.S b/arch/mips/dec/int-handler.S
index b251ef864c33b281fa899a295c266f10f48db98d..00cecdcc75f215cb6e5a6581442774996fcc26f3 100644 (file)
--- a/arch/mips/dec/int-handler.S
+++ b/arch/mips/dec/int-handler.S
@@ -264,9 +264,6 @@
                 srlv   t3,t1,t2
 
 handle_it:
-               LONG_L  s0, TI_REGS($28)
-               LONG_S  sp, TI_REGS($28)
-               PTR_LA  ra, ret_from_irq
                j       dec_irq_dispatch
                 nop
 
@@ -277,7 +274,6 @@ fpu:
 #endif
 
 spurious:
-               PTR_LA  ra, _ret_from_irq
                j       spurious_interrupt
                 nop
                END(plat_irq_dispatch)