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printk/percpu: Define printk_func when printk is not defined

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To avoid include hell, the per_cpu variable printk_func was declared
in percpu.h. But it is only defined if printk is defined.

As users of printk may also use the printk_func variable, it needs to
be defined even if CONFIG_PRINTK is not.

Also add a printk.h include in percpu.h just to be safe.

Link: http://lkml.kernel.org/r/20141121183215.01ba539c@canb.auug.org.au

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat)
2014-11-21 09:16:58 -05:00
committed by Steven Rostedt
parent a9edc88093
commit 04b74b27c2
3 changed files with 6 additions and 2 deletions
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1
include/linux/percpu.h
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@@ -5,6 +5,7 @@
#include <linux/preempt.h>
#include <linux/smp.h>
#include <linux/cpumask.h>
#include <linux/printk.h>
#include <linux/pfn.h>
#include <linux/init.h>