From: Steven Rostedt <rostedt@goodmis.org>
Date: Thu, 19 Mar 2015 14:18:51 +0000 (-0400)
Subject: irq_work: Fix build failure when CONFIG_IRQ_WORK is not defined
X-Git-Tag: omap-for-v4.2/o2_dc~188^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=71ad00d61ec861dc68b4544887729850e58cb99b;p=pandora-kernel.git

irq_work: Fix build failure when CONFIG_IRQ_WORK is not defined

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@goodmis.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/20150319101851.4d224d9b@gandalf.local.home
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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