linux-kernel - [tip:x86/apic] x86, irq: Kill unused pre_init_apic

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Date:	Wed, 26 Nov 2014 15:13:23 -0800
From:	tip-bot for Jiang Liu <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, mingo@...nel.org, joro@...tes.org,
	bhelgaas@...gle.com, rjw@...ysocki.net, bp@...en8.de,
	andriy.shevchenko@...ux.intel.com, rdunlap@...radead.org,
	hpa@...or.com, yinghai@...nel.org, grant.likely@...aro.org,
	konrad.wilk@...cle.com, tglx@...utronix.de, tony.luck@...el.com,
	benh@...nel.crashing.org, gregkh@...uxfoundation.org,
	jiang.liu@...ux.intel.com
Subject: [tip:x86/apic] x86, irq: Kill unused pre_init_apic_IRQ0()

Commit-ID:  afc1bcbe31c10f5ae16df532398f1bb164448558
Gitweb:     http://git.kernel.org/tip/afc1bcbe31c10f5ae16df532398f1bb164448558
Author:     Jiang Liu <jiang.liu@...ux.intel.com>
AuthorDate: Tue, 25 Nov 2014 15:49:27 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Wed, 26 Nov 2014 23:52:46 +0100

x86, irq: Kill unused pre_init_apic_IRQ0()

Now there's no user of pre_init_apic_IRQ0(), so kill it.

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.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: Grant Likely <grant.likely@...aro.org>
Link: http://lkml.kernel.org/r/1416901802-24211-4-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Tested-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 arch/x86/include/asm/io_apic.h |  1 -
 arch/x86/kernel/apic/io_apic.c | 17 -----------------
 2 files changed, 18 deletions(-)

diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index bf006cc..3207143 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -204,7 +204,6 @@ extern int mp_irqdomain_map(struct irq_domain *domain, unsigned int virq,
 			    irq_hw_number_t hwirq);
 extern void mp_irqdomain_unmap(struct irq_domain *domain, unsigned int virq);
 extern int mp_set_gsi_attr(u32 gsi, int trigger, int polarity, int node);
-extern void __init pre_init_apic_IRQ0(void);
 
 extern void mp_save_irq(struct mpc_intsrc *m);
 
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 51936be..919afe7 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -3088,20 +3088,3 @@ int mp_set_gsi_attr(u32 gsi, int trigger, int polarity, int node)
 
 	return ret;
 }
-
-/* Enable IOAPIC early just for system timer */
-void __init pre_init_apic_IRQ0(void)
-{
-	struct io_apic_irq_attr attr = { 0, 0, 0, 0 };
-
-	printk(KERN_INFO "Early APIC setup for system timer0\n");
-#ifndef CONFIG_SMP
-	physid_set_mask_of_physid(boot_cpu_physical_apicid,
-					 &phys_cpu_present_map);
-#endif
-	setup_local_APIC();
-
-	io_apic_setup_irq_pin(0, 0, &attr);
-	irq_set_chip_and_handler_name(0, &ioapic_chip, handle_edge_irq,
-				      "edge");
-}
--
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