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Commit d5dedd45 authored by Yinghai Lu's avatar Yinghai Lu Committed by Ingo Molnar
Browse files

irq: change ->set_affinity() to return status 



according to Ingo, change set_affinity() in irq_chip should return int,
because that way we can handle failure cases in a much cleaner way, in
the genirq layer.

v2: fix two typos

[ Impact: extend API ]

Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: linux-arch@vger.kernel.org
LKML-Reference: <49F654E9.4070809@kernel.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent fcef5911

arch/alpha/kernel/sys_dp264.c

+6 −2
Original line number Diff line number Diff line
@@ -176,22 +176,26 @@ cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity) 
	}

}



static void

static int

dp264_set_affinity(unsigned int irq, const struct cpumask *affinity)

{ 

	spin_lock(&dp264_irq_lock);

	cpu_set_irq_affinity(irq, *affinity);

	tsunami_update_irq_hw(cached_irq_mask);

	spin_unlock(&dp264_irq_lock);



	return 0;

}



static void

static int

clipper_set_affinity(unsigned int irq, const struct cpumask *affinity)

{ 

	spin_lock(&dp264_irq_lock);

	cpu_set_irq_affinity(irq - 16, *affinity);

	tsunami_update_irq_hw(cached_irq_mask);

	spin_unlock(&dp264_irq_lock);



	return 0;

}



static struct hw_interrupt_type dp264_irq_type = {

arch/alpha/kernel/sys_titan.c

+3 −1
Original line number Diff line number Diff line
@@ -157,13 +157,15 @@ titan_cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity) 


}



static void

static int

titan_set_irq_affinity(unsigned int irq, const struct cpumask *affinity)

{ 

	spin_lock(&titan_irq_lock);

	titan_cpu_set_irq_affinity(irq - 16, *affinity);

	titan_update_irq_hw(titan_cached_irq_mask);

	spin_unlock(&titan_irq_lock);



	return 0;

}



static void

arch/arm/common/gic.c

+3 −1
Original line number Diff line number Diff line
@@ -109,7 +109,7 @@ static void gic_unmask_irq(unsigned int irq) 
}



#ifdef CONFIG_SMP

static void gic_set_cpu(unsigned int irq, const struct cpumask *mask_val)

static int gic_set_cpu(unsigned int irq, const struct cpumask *mask_val)

{

	void __iomem *reg = gic_dist_base(irq) + GIC_DIST_TARGET + (gic_irq(irq) & ~3);

	unsigned int shift = (irq % 4) * 8;
@@ -122,6 +122,8 @@ static void gic_set_cpu(unsigned int irq, const struct cpumask *mask_val) 
	val |= 1 << (cpu + shift);

	writel(val, reg);

	spin_unlock(&irq_controller_lock);



	return 0;

}

#endif

arch/cris/arch-v32/kernel/irq.c

+3 −1
Original line number Diff line number Diff line
@@ -325,12 +325,14 @@ static void end_crisv32_irq(unsigned int irq) 
{

}



void set_affinity_crisv32_irq(unsigned int irq, const struct cpumask *dest)

int set_affinity_crisv32_irq(unsigned int irq, const struct cpumask *dest)

{

	unsigned long flags;

	spin_lock_irqsave(&irq_lock, flags);

	irq_allocations[irq - FIRST_IRQ].mask = *dest;

	spin_unlock_irqrestore(&irq_lock, flags);



	return 0;

}



static struct irq_chip crisv32_irq_type = {

arch/ia64/hp/sim/hpsim_irq.c

+2 −1
Original line number Diff line number Diff line
@@ -21,9 +21,10 @@ hpsim_irq_noop (unsigned int irq) 
{

}



static void

static int

hpsim_set_affinity_noop(unsigned int a, const struct cpumask *b)

{

	return 0;

}



static struct hw_interrupt_type irq_type_hp_sim = {