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Date: Mon, 7 Apr 2014 12:13:06 +0200 From: Sebastian Andrzej Siewior <bigeasy@...utronix.de> To: jamie@...ieiles.com Cc: atull@...era.com, gnurou@...il.com, linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, dinguyen@...era.com, linus.walleij@...aro.org, sebastian.hesselbarth@...il.com, Sebastian Andrzej Siewior <bigeasy@...utronix.de> Subject: [PATCH 2/5] gpio: dwapb: use irq_linear_revmap() for the faster lookup According to irq_linear_revmap() comment, it is slightly faster compared to irq_find_mapping() since we don't use a radix tree but a linear mapping. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de> --- drivers/gpio/gpio-dwapb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c index 4d25a06b..541b893 100644 --- a/drivers/gpio/gpio-dwapb.c +++ b/drivers/gpio/gpio-dwapb.c @@ -92,7 +92,7 @@ static void dwapb_irq_handler(u32 irq, struct irq_desc *desc) while (irq_status) { int hwirq = fls(irq_status) - 1; - int gpio_irq = irq_find_mapping(gpio->domain, hwirq); + int gpio_irq = irq_linear_revmap(gpio->domain, hwirq); generic_handle_irq(gpio_irq); irq_status &= ~BIT(hwirq); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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