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-rw-r--r--target/linux/atheros/files/arch/mips/atheros/ar5315/irq.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/target/linux/atheros/files/arch/mips/atheros/ar5315/irq.c b/target/linux/atheros/files/arch/mips/atheros/ar5315/irq.c
index ed784ba88..69cb362a0 100644
--- a/target/linux/atheros/files/arch/mips/atheros/ar5315/irq.c
+++ b/target/linux/atheros/files/arch/mips/atheros/ar5315/irq.c
@@ -20,6 +20,7 @@
#include <linux/kernel.h>
#include <linux/reboot.h>
#include <linux/interrupt.h>
+#include <linux/bitops.h>
#include <asm/bootinfo.h>
#include <asm/irq_cpu.h>
#include <asm/io.h>
@@ -39,7 +40,7 @@ static inline void ar5315_gpio_irq(void)
if (!pend)
return;
- do_IRQ(AR531X_GPIO_IRQ_BASE + 31 - clz(pend));
+ do_IRQ(AR531X_GPIO_IRQ_BASE + fls(pend) - 1);
}