[PATCH] MIPS: Alchemy: reduce size of irq dispatcher

[Manuel Lauss <manuel.lauss@googlemail.com>]

By replacing an extra do_IRQ with a goto, the assembly shrinks
from 260 to 212 bytes (gcc-4.3.4).

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
---
 Applies on top of the irq changes in -queue.

 arch/mips/alchemy/common/irq.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/mips/alchemy/common/irq.c b/arch/mips/alchemy/common/irq.c
index ab65997..b2a1e4e 100644
--- a/arch/mips/alchemy/common/irq.c
+++ b/arch/mips/alchemy/common/irq.c
@@ -501,8 +501,8 @@ asmlinkage void plat_irq_dispatch(void)
        unsigned long s, off;
 
        if (pending & CAUSEF_IP7) {
-               do_IRQ(MIPS_CPU_IRQ_BASE + 7);
-               return;
+               off = MIPS_CPU_IRQ_BASE + 7;
+               goto handle;
        } else if (pending & CAUSEF_IP2) {
                s = IC0_REQ0INT;
                off = AU1000_INTC0_INT_BASE;
@@ -524,7 +524,9 @@ spurious:
                spurious_interrupt();
                return;
        }
-       do_IRQ(__ffs(s) + off);
+       off += __ffs(s);
+handle:
+       do_IRQ(off);
 }
 
 /* setup edge/level and assign request 0/1 */
-- 
1.6.5.rc2