Re: [PATCH] irq_work: Fix build failure when CONFIG_IRQ_WORK not defined

[Peter Zijlstra]

On Thu, Mar 19, 2015 at 10:18:51AM -0400, Steven Rostedt wrote:
> When CONFIG_IRQ_WORK is not defined (difficult to do, as it also
> requires CONFIG_PRINTK not to be defined), we get a build failure:
> 
> kernel/built-in.o: In function `flush_smp_call_function_queue':
> kernel/smp.c:263: undefined reference to `irq_work_run'
> kernel/smp.c:263: undefined reference to `irq_work_run'
> Makefile:933: recipe for target 'vmlinux' failed
> 
> Simplest thing to do is to make irq_work_run() a nop when not set.
> 
> Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>

Thanks!
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