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MIPS: Loongson: irq.c: Misc cleanups

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* Remove unnecessary 'if (int_status & (1 <<10))' statement
* s/if (foo != 0)/if (foo)/
* Remove unused 'inst_status &= ~(1 << i);' line

Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
To: wuzhangjin@gmail.com
CC: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1433/
Acked-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Shinya Kuribayashi 2010-06-27 22:52:01 +09:00 committed by Ralf Baechle
parent 1f1f4e7dbc
commit f5c1ca77a3
1 changed files with 4 additions and 7 deletions
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11
arch/mips/loongson/common/irq.c
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@ -21,19 +21,16 @@ void bonito_irqdispatch(void)
/* workaround the IO dma problem: let cpu looping to allow DMA finish */
int_status = LOONGSON_INTISR;
if (int_status & (1 << 10)) {
while (int_status & (1 << 10)) {
udelay(1);
int_status = LOONGSON_INTISR;
}
while (int_status & (1 << 10)) {
udelay(1);
int_status = LOONGSON_INTISR;
}
/* Get pending sources, masked by current enables */
int_status = LOONGSON_INTISR & LOONGSON_INTEN;
if (int_status != 0) {
if (int_status) {
i = __ffs(int_status);
int_status &= ~(1 << i);
do_IRQ(LOONGSON_IRQ_BASE + i);
}
}