linux-kernel - [tip:x86/apic] x86/irq: Remove function apic_set

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Message-ID: <tip-68f9f4404d74f859dc84973db8731b41a51d929a@git.kernel.org>
Date:	Fri, 24 Apr 2015 09:01:33 -0700
From:	tip-bot for Jiang Liu <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	david.vrabel@...rix.com, jroedel@...e.de, rdunlap@...radead.org,
	linux@...elenboom.it, tglx@...utronix.de, hpa@...or.com,
	yinghai@...nel.org, bhelgaas@...gle.com,
	david.a.cohen@...ux.intel.com, joro@...tes.org,
	tony.luck@...el.com, jiang.liu@...ux.intel.com,
	benh@...nel.crashing.org, rjw@...ysocki.net,
	gregkh@...uxfoundation.org, konrad.wilk@...cle.com,
	linux-kernel@...r.kernel.org, bp@...en8.de, sivanich@....com,
	mingo@...nel.org
Subject: [tip:x86/apic] x86/irq: Remove function apic_set_affinity()

Commit-ID:  68f9f4404d74f859dc84973db8731b41a51d929a
Gitweb:     http://git.kernel.org/tip/68f9f4404d74f859dc84973db8731b41a51d929a
Author:     Jiang Liu <jiang.liu@...ux.intel.com>
AuthorDate: Tue, 14 Apr 2015 10:30:01 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Fri, 24 Apr 2015 15:36:54 +0200

x86/irq: Remove function apic_set_affinity()

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

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
Tested-by: Joerg Roedel <jroedel@...e.de>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc: David Cohen <david.a.cohen@...ux.intel.com>
Cc: Sander Eikelenboom <linux@...elenboom.it>
Cc: David Vrabel <david.vrabel@...rix.com>
Cc: Tony Luck <tony.luck@...el.com>
Cc: Joerg Roedel <joro@...tes.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Rafael J. Wysocki <rjw@...ysocki.net>
Cc: Randy Dunlap <rdunlap@...radead.org>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Dimitri Sivanich <sivanich@....com>
Link: http://lkml.kernel.org/r/1428978610-28986-25-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 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 9a79768..727c623 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -198,8 +198,6 @@ 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 d52af4d..1aea62d 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)
 {
 	struct irq_cfg *cfg = irq_data->chip_data;
 	int err, irq = irq_data->irq;
@@ -523,7 +489,7 @@ static int vector_set_affinity(struct irq_data *irq_data,
 
 static struct irq_chip lapic_controller = {
 	.irq_ack		= apic_ack_edge,
-	.irq_set_affinity	= vector_set_affinity,
+	.irq_set_affinity	= apic_set_affinity,
 	.irq_retrigger		= apic_retrigger_irq,
 };
 
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