From 69de72ec6db950c436e36b94cf05eeb9e11ee144 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 28 Aug 2017 08:47:16 +0200 Subject: [PATCH] x86/irq: Remove vector_used_by_percpu_irq() Last user (lguest) is gone. Remove it. Signed-off-by: Thomas Gleixner Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/20170828064956.201432430@linutronix.de Signed-off-by: Ingo Molnar --- arch/x86/include/asm/irq.h | 1 - arch/x86/kernel/irq.c | 2 -- arch/x86/kernel/irqinit.c | 12 ------------ 3 files changed, 15 deletions(-) diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h index 668cca540025..ce991689843f 100644 --- a/arch/x86/include/asm/irq.h +++ b/arch/x86/include/asm/irq.h @@ -44,7 +44,6 @@ extern __visible unsigned int do_IRQ(struct pt_regs *regs); /* Interrupt vector management */ extern DECLARE_BITMAP(used_vectors, NR_VECTORS); -extern int vector_used_by_percpu_irq(unsigned int vector); extern void init_ISA_irqs(void); diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 4ed0aba8dbc8..e6073a0ce77e 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -346,8 +346,6 @@ __visible void __irq_entry smp_trace_x86_platform_ipi(struct pt_regs *regs) set_irq_regs(old_regs); } -EXPORT_SYMBOL_GPL(vector_used_by_percpu_irq); - #ifdef CONFIG_HOTPLUG_CPU /* These two declarations are only used in check_irq_vectors_for_cpu_disable() diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c index c7fd18526c3e..6537cfe2cb1d 100644 --- a/arch/x86/kernel/irqinit.c +++ b/arch/x86/kernel/irqinit.c @@ -55,18 +55,6 @@ DEFINE_PER_CPU(vector_irq_t, vector_irq) = { [0 ... NR_VECTORS - 1] = VECTOR_UNUSED, }; -int vector_used_by_percpu_irq(unsigned int vector) -{ - int cpu; - - for_each_online_cpu(cpu) { - if (!IS_ERR_OR_NULL(per_cpu(vector_irq, cpu)[vector])) - return 1; - } - - return 0; -} - void __init init_ISA_irqs(void) { struct irq_chip *chip = legacy_pic->chip; -- 2.20.1