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Commit 69de72ec authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Ingo Molnar
Browse files

x86/irq: Remove vector_used_by_percpu_irq() 



Last user (lguest) is gone. Remove it.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170828064956.201432430@linutronix.de


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 416b0c0f

arch/x86/include/asm/irq.h

+0 −1
Original line number Diff line number Diff line
@@ -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);

arch/x86/kernel/irq.c

+0 −2
Original line number Diff line number Diff line
@@ -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()

arch/x86/kernel/irqinit.c

+0 −12
Original line number Diff line number Diff line
@@ -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;