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Subject[PATCH] gpio: pxa: using for_each_set_bit to simplify the code
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From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

Using for_each_set_bit() to simplify the code.

spatch with a semantic match is used to found this.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
---
drivers/gpio/gpio-pxa.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 9cac88a..a9e1a74 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -413,12 +413,10 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc)
gedr = gedr & c->irq_mask;
writel_relaxed(gedr, c->regbase + GEDR_OFFSET);

- n = find_first_bit(&gedr, BITS_PER_LONG);
- while (n < BITS_PER_LONG) {
+ for_each_set_bit(n, &gedr, BITS_PER_LONG) {
loop = 1;

generic_handle_irq(gpio_to_irq(gpio_base + n));
- n = find_next_bit(&gedr, BITS_PER_LONG, n + 1);
}
}
} while (loop);



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