linux-kernel - [PATCH 2/4] IRQ,x86: normalize return value of chip->irq_set

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Date:	Mon,  2 Apr 2012 00:33:50 +0800
From:	Jiang Liu <liuj97@...il.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Jiang Liu <jiang.liu@...wei.com>, Jiang Liu <liuj97@...il.com>,
	Keping Chen <chenkeping@...wei.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] IRQ,x86: normalize return value of chip->irq_set_affinity() method

Changeset 3b8249e7 has introduced standard return value IRQ_SET_MASK_OK(0) and
IRQ_SET_MASK_OK_NOCOPY(1) for interrupt controller chip's set_irq_affinity()
method.  So use IRQ_SET_MASK_OK instead of 0 for consistency.

Signed-off-by: Jiang Liu <jiang.liu@...wei.com>
---
 arch/x86/kernel/apic/io_apic.c |   11 ++++++-----
 arch/x86/platform/uv/uv_irq.c  |    2 +-
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index c68954e..18e73b3 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2345,6 +2345,7 @@ ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask,
 		/* Only the high 8 bits are valid. */
 		dest = SET_APIC_LOGICAL_ID(dest);
 		__target_IO_APIC_irq(irq, dest, data->chip_data);
+		ret = IRQ_SET_MASK_OK;
 	}
 	raw_spin_unlock_irqrestore(&ioapic_lock, flags);
 	return ret;
@@ -2402,7 +2403,7 @@ ir_ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask,
 	if (cfg->move_in_progress)
 		send_cleanup_vector(cfg);
 
-	return 0;
+	return IRQ_SET_MASK_OK;
 }
 
 #else
@@ -3207,7 +3208,7 @@ msi_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force)
 
 	__write_msi_msg(data->msi_desc, &msg);
 
-	return 0;
+	return IRQ_SET_MASK_OK;
 }
 #endif /* CONFIG_SMP */
 
@@ -3364,7 +3365,7 @@ dmar_msi_set_affinity(struct irq_data *data, const struct cpumask *mask,
 
 	dmar_msi_write(irq, &msg);
 
-	return 0;
+	return IRQ_SET_MASK_OK;
 }
 
 #endif /* CONFIG_SMP */
@@ -3417,7 +3418,7 @@ static int hpet_msi_set_affinity(struct irq_data *data,
 
 	hpet_msi_write(data->handler_data, &msg);
 
-	return 0;
+	return IRQ_SET_MASK_OK;
 }
 
 #endif /* CONFIG_SMP */
@@ -3497,7 +3498,7 @@ ht_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force)
 		return -1;
 
 	target_ht_irq(data->irq, dest, cfg->vector);
-	return 0;
+	return IRQ_SET_MASK_OK;
 }
 
 #endif
diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c
index f25c276..67e3509 100644
--- a/arch/x86/platform/uv/uv_irq.c
+++ b/arch/x86/platform/uv/uv_irq.c
@@ -222,7 +222,7 @@ uv_set_irq_affinity(struct irq_data *data, const struct cpumask *mask,
 	if (cfg->move_in_progress)
 		send_cleanup_vector(cfg);
 
-	return 0;
+	return IRQ_SET_MASK_OK;
 }
 
 /*
-- 
1.7.5.4

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