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MIPS: Alchemy: reduce size of irq dispatcher 

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>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Manuel Lauss 2009-10-13 20:26:31 +02:00 committed by Ralf Baechle
parent 788144656b
commit f1fc6645a4
1 changed files with 5 additions and 3 deletions
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8
arch/mips/alchemy/common/irq.c
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@ -519,8 +519,8 @@ 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;
@ -542,7 +542,9 @@ spurious:
spurious_interrupt();
return;
}
do_IRQ(__ffs(s) + off);
off += __ffs(s);
handle:
do_IRQ(off);
}
/* setup edge/level and assign request 0/1 */