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Commit 1b7a2d90 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

arm: Use irq flag setter function 



Use the proper accessor function instead of fiddling in the status
bits directly.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
parent 1475b85d

arch/arm/kernel/irq.c

+6 −9
Original line number Diff line number Diff line
@@ -144,24 +144,21 @@ asm_do_IRQ(unsigned int irq, struct pt_regs *regs) 


void set_irq_flags(unsigned int irq, unsigned int iflags)

{

	struct irq_desc *desc;

	unsigned long flags;

	unsigned long clr = 0, set = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;



	if (irq >= nr_irqs) {

		printk(KERN_ERR "Trying to set irq flags for IRQ%d\n", irq);

		return;

	}



	desc = irq_to_desc(irq);

	raw_spin_lock_irqsave(&desc->lock, flags);

	desc->status |= IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;

	if (iflags & IRQF_VALID)

		desc->status &= ~IRQ_NOREQUEST;

		clr |= IRQ_NOREQUEST;

	if (iflags & IRQF_PROBE)

		desc->status &= ~IRQ_NOPROBE;

		clr |= IRQ_NOPROBE;

	if (!(iflags & IRQF_NOAUTOEN))

		desc->status &= ~IRQ_NOAUTOEN;

	raw_spin_unlock_irqrestore(&desc->lock, flags);

		clr |= IRQ_NOAUTOEN;

	/* Order is clear bits in "clr" then set bits in "set" */

	irq_modify_status(irq, clr, set & ~clr);

}



void __init init_IRQ(void)