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irq_work: Define irq_work_single() on !CONFIG_IRQ_WORK too

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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@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2020-06-02 12:08:39 +02:00
parent 1f8db41505
commit 25de110d14
2 changed files with 2 additions and 2 deletions
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2
include/linux/irq_work.h
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@ -58,9 +58,11 @@ void irq_work_sync(struct irq_work *work);
void irq_work_run(void); void irq_work_run(void);
bool irq_work_needs_cpu(void); bool irq_work_needs_cpu(void);
void irq_work_single(void *arg);
#else #else
static inline bool irq_work_needs_cpu(void) { return false; } static inline bool irq_work_needs_cpu(void) { return false; }
static inline void irq_work_run(void) { } static inline void irq_work_run(void) { }
static inline void irq_work_single(void *arg) { }
#endif #endif
#endif /* _LINUX_IRQ_WORK_H */ #endif /* _LINUX_IRQ_WORK_H */

2
kernel/smp.c
View file

@ -194,8 +194,6 @@ void generic_smp_call_function_single_interrupt(void)
flush_smp_call_function_queue(true); flush_smp_call_function_queue(true);
} }
extern void irq_work_single(void *);
/** /**
* flush_smp_call_function_queue - Flush pending smp-call-function callbacks * flush_smp_call_function_queue - Flush pending smp-call-function callbacks
* *