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

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Date:	Fri, 24 Apr 2015 08:56:19 -0700
From:	tip-bot for Jiang Liu <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux@...elenboom.it, gregkh@...uxfoundation.org,
	benh@...nel.crashing.org, rdunlap@...radead.org, hpa@...or.com,
	konrad.wilk@...cle.com, tony.luck@...el.com, sivanich@....com,
	bp@...en8.de, david.vrabel@...rix.com,
	david.a.cohen@...ux.intel.com, tglx@...utronix.de, joro@...tes.org,
	mingo@...nel.org, jiang.liu@...ux.intel.com, bhelgaas@...gle.com,
	rjw@...ysocki.net, yinghai@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip:x86/apic] x86/irq: Remove GENERIC_IRQ_LEGACY_ALLOC_HWIRQ

Commit-ID:  baac16952635445addaf397bad74e847db821d6d
Gitweb:     http://git.kernel.org/tip/baac16952635445addaf397bad74e847db821d6d
Author:     Jiang Liu <jiang.liu@...ux.intel.com>
AuthorDate: Tue, 14 Apr 2015 10:29:44 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Fri, 24 Apr 2015 15:36:52 +0200

x86/irq: Remove GENERIC_IRQ_LEGACY_ALLOC_HWIRQ

There's no user of irq_alloc_hwirqs(), irq_alloc_hwirq(),
irq_free_hwirqs() and irq_free_hwirq() in x86 anymore, so remove
GENERIC_IRQ_LEGACY_ALLOC_HWIRQ and related code.

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
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/1428978610-28986-8-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/x86/Kconfig              |  1 -
 arch/x86/kernel/apic/vector.c | 34 ----------------------------------
 2 files changed, 35 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 26e0665..c86fdc1 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -912,7 +912,6 @@ config X86_UP_IOAPIC
 config X86_LOCAL_APIC
 	def_bool y
 	depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_APIC || PCI_MSI
-	select GENERIC_IRQ_LEGACY_ALLOC_HWIRQ
 	select IRQ_DOMAIN_HIERARCHY
 	select PCI_MSI_IRQ_DOMAIN if PCI_MSI
 
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 633f032..d0e5ea0 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -659,40 +659,6 @@ void irq_force_complete_move(int irq)
 }
 #endif
 
-/*
- * Dynamic irq allocate and deallocation. Should be replaced by irq domains!
- */
-int arch_setup_hwirq(unsigned int irq, int node)
-{
-	struct irq_cfg *cfg;
-	unsigned long flags;
-	int ret;
-
-	cfg = alloc_irq_cfg(node);
-	if (!cfg)
-		return -ENOMEM;
-
-	raw_spin_lock_irqsave(&vector_lock, flags);
-	ret = __assign_irq_vector(irq, cfg, apic->target_cpus());
-	raw_spin_unlock_irqrestore(&vector_lock, flags);
-
-	if (!ret)
-		irq_set_chip_data(irq, cfg);
-	else
-		free_irq_cfg(cfg);
-	return ret;
-}
-
-void arch_teardown_hwirq(unsigned int irq)
-{
-	struct irq_cfg *cfg = irq_cfg(irq);
-
-	free_remapped_irq(irq);
-	clear_irq_vector(irq, cfg);
-	irq_set_chip_data(irq, NULL);
-	free_irq_cfg(cfg);
-}
-
 static void __init print_APIC_field(int base)
 {
 	int i;
--
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