linux-kernel - [Patch Part3 v3 32/38] x86, irq: Kill function apic_set

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Message-Id: <1415470418-10874-33-git-send-email-jiang.liu@linux.intel.com>
Date:	Sun,  9 Nov 2014 02:13:32 +0800
From:	Jiang Liu <jiang.liu@...ux.intel.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	Yinghai Lu <yinghai@...nel.org>,
	Borislav Petkov <bp@...en8.de>, x86@...nel.org,
	Jiang Liu <jiang.liu@...ux.intel.com>
Cc:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Tony Luck <tony.luck@...el.com>,
	Joerg Roedel <joro@...tes.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-acpi@...r.kernel.org
Subject: [Patch Part3 v3 32/38] x86, irq: Kill function apic_set_affinity()

Now there's no user of apic_set_affinity(), so kill it.
Also rename vector_set_affinity() to apic_set_affinity() for consistency.

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
---
 arch/x86/include/asm/hw_irq.h |    2 --
 arch/x86/kernel/apic/vector.c |   40 +++-------------------------------------
 2 files changed, 3 insertions(+), 39 deletions(-)

diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index dee2069d7c19..c7a616c8f9a1 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -196,8 +196,6 @@ static inline void irq_complete_move(struct irq_cfg *c) { }
 #endif
 
 extern void apic_ack_edge(struct irq_data *data);
-extern int apic_set_affinity(struct irq_data *data, const struct cpumask *mask,
-			     unsigned int *dest_id);
 #else	/*  CONFIG_X86_LOCAL_APIC */
 static inline void lock_vector_lock(void) {}
 static inline void unlock_vector_lock(void) {}
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 4fa940aa24c1..d56b4611c75a 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -463,42 +463,8 @@ void apic_ack_edge(struct irq_data *data)
 	ack_APIC_irq();
 }
 
-/*
- * Either sets data->affinity to a valid value, and returns
- * ->cpu_mask_to_apicid of that in dest_id, or returns -1 and
- * leaves data->affinity untouched.
- */
-int apic_set_affinity(struct irq_data *data, const struct cpumask *mask,
-		      unsigned int *dest_id)
-{
-	struct irq_cfg *cfg = irqd_cfg(data);
-	unsigned int irq = data->irq;
-	int err;
-
-	if (!config_enabled(CONFIG_SMP))
-		return -EPERM;
-
-	if (!cpumask_intersects(mask, cpu_online_mask))
-		return -EINVAL;
-
-	err = assign_irq_vector(irq, cfg, mask);
-	if (err)
-		return err;
-
-	err = apic->cpu_mask_to_apicid_and(mask, cfg->domain, dest_id);
-	if (err) {
-		if (assign_irq_vector(irq, cfg, data->affinity))
-			pr_err("Failed to recover vector for irq %d\n", irq);
-		return err;
-	}
-
-	cpumask_copy(data->affinity, mask);
-
-	return 0;
-}
-
-static int vector_set_affinity(struct irq_data *irq_data,
-			       const struct cpumask *dest, bool force)
+static int apic_set_affinity(struct irq_data *irq_data,
+			     const struct cpumask *dest, bool force)
 {
 	int err;
 	int irq = irq_data->irq;
@@ -524,7 +490,7 @@ static int vector_set_affinity(struct irq_data *irq_data,
 
 static struct irq_chip vector_chip = {
 	.irq_ack = apic_ack_edge,
-	.irq_set_affinity = vector_set_affinity,
+	.irq_set_affinity = apic_set_affinity,
 	.irq_retrigger = apic_retrigger_irq,
 };
 
-- 
1.7.10.4

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