The following commit has been merged into the sched/core branch of tip: Commit-ID: 25de110d148666752dc0e0da7a0b69de31cd7098 Gitweb: https://git.kernel.org/tip/25de110d148666752dc0e0da7a0b69de31cd7098 Author: Ingo Molnar <mingo@xxxxxxxxxx> AuthorDate: Tue, 02 Jun 2020 12:08:39 +02:00 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitterDate: Tue, 02 Jun 2020 12:34:45 +02:00 irq_work: Define irq_work_single() on !CONFIG_IRQ_WORK too Some SMP platforms don't have CONFIG_IRQ_WORK defined, resulting in a link error at build time. Define a stub and clean up the prototype definitions. Reported-by: kbuild test robot <lkp@xxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> Acked-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: linux-kernel@xxxxxxxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- include/linux/irq_work.h | 2 ++ kernel/smp.c | 2 -- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h index f23a359..2735da5 100644 --- a/include/linux/irq_work.h +++ b/include/linux/irq_work.h @@ -58,9 +58,11 @@ void irq_work_sync(struct irq_work *work); void irq_work_run(void); bool irq_work_needs_cpu(void); +void irq_work_single(void *arg); #else static inline bool irq_work_needs_cpu(void) { return false; } static inline void irq_work_run(void) { } +static inline void irq_work_single(void *arg) { } #endif #endif /* _LINUX_IRQ_WORK_H */ diff --git a/kernel/smp.c b/kernel/smp.c index 4dec04f..c80486a 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -194,8 +194,6 @@ void generic_smp_call_function_single_interrupt(void) flush_smp_call_function_queue(true); } -extern void irq_work_single(void *); - /** * flush_smp_call_function_queue - Flush pending smp-call-function callbacks *
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