[PATCH] ARM: at91/gpio: using for_each_set_bit to simplify the code
From: Wei Yongjun <hidden>
Date: 2012-09-14 02:30:38
Also in:
lkml
Subsystem:
arm port, arm/microchip (at91) soc support, the rest · Maintainers:
Russell King, Nicolas Ferre, Alexandre Belloni, Claudiu Beznea, Linus Torvalds
From: Wei Yongjun <redacted> 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 <redacted> --- arch/arm/mach-at91/gpio.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index be42cf0..ed6ed8c 100644
--- a/arch/arm/mach-at91/gpio.c
+++ b/arch/arm/mach-at91/gpio.c@@ -609,10 +609,8 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc) continue; } - n = find_first_bit(&isr, BITS_PER_LONG); - while (n < BITS_PER_LONG) { + for_each_set_bit(n, &isr, BITS_PER_LONG) { generic_handle_irq(irq_find_mapping(at91_gpio->domain, n)); - n = find_next_bit(&isr, BITS_PER_LONG, n + 1); } } chained_irq_exit(chip, desc);