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Commit 09f6edd4 authored by Frederic Weisbecker's avatar Frederic Weisbecker
Browse files

arm: Tell irq work about self IPI support 



ARM irq work IPI support depends on SMP support. That information is
partly known at early boottime. Lets implement
arch_irq_work_has_interrupt() accordingly.

Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
parent 3010279f

arch/arm/include/asm/Kbuild

+0 −1
Original line number Diff line number Diff line
@@ -11,7 +11,6 @@ generic-y += hash.h 
generic-y += ioctl.h

generic-y += ipcbuf.h

generic-y += irq_regs.h

generic-y += irq_work.h

generic-y += kdebug.h

generic-y += local.h

generic-y += local64.h

arch/arm/include/asm/irq_work.h

0 → 100644
+11 −0
Original line number Diff line number Diff line 
#ifndef __ASM_ARM_IRQ_WORK_H

#define __ASM_ARM_IRQ_WORK_H



#include <asm/smp_plat.h>



static inline bool arch_irq_work_has_interrupt(void)

{

	return is_smp();

}



#endif /* _ASM_ARM_IRQ_WORK_H */

arch/arm/kernel/smp.c

+1 −1
Original line number Diff line number Diff line
@@ -503,7 +503,7 @@ void arch_send_call_function_single_ipi(int cpu) 
#ifdef CONFIG_IRQ_WORK

void arch_irq_work_raise(void)

{

	if (is_smp())

	if (arch_irq_work_has_interrupt())

		smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK);

}

#endif