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irqchip/zevio: Use irq_data_get_chip_type() helper

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Use irq_data_get_chip_type() instead of container_of().

Signed-off-by: Geliang Tang <geliangtang@163.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Link: http://lkml.kernel.org/r/4cc3a3a7a74c7a1894892a85aa7eabbd1534fe96.1451484758.git.geliangtang@163.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Geliang Tang 2015-12-30 22:16:37 +08:00 committed by Thomas Gleixner
parent fee48dfcd7
commit 1fd9a71076
1 changed files with 1 additions and 2 deletions
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3
drivers/irqchip/irq-zevio.c
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@ -43,8 +43,7 @@ static void __iomem *zevio_irq_io;
static void zevio_irq_ack(struct irq_data *irqd)
{
struct irq_chip_generic *gc = irq_data_get_irq_chip_data(irqd);
struct irq_chip_regs *regs =
&container_of(irqd->chip, struct irq_chip_type, chip)->regs;
struct irq_chip_regs *regs = &irq_data_get_chip_type(irqd)->regs;
readl(gc->reg_base + regs->ack);
}