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ARM: 7122/1: localtimer: add header linux/errno.h explicitly
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Per the text in  Documentation/SubmitChecklist as below, we should
explicitly have header linux/errno.h in localtimer.h for ENXIO
reference.

1: If you use a facility then #include the file that defines/declares
   that facility.  Don't depend on other header files pulling in ones
   that you use.

Otherwise, we may run into some compiling error like the following one,
if any file includes localtimer.h without CONFIG_LOCAL_TIMERS defined.

  arch/arm/include/asm/localtimer.h: In function ‘local_timer_setup’:
  arch/arm/include/asm/localtimer.h:53:10: error: ‘ENXIO’ undeclared (first use in this function)

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Shawn Guo authored and Russell King committed Oct 15, 2011
1 parent 29a541f commit bb1ac3e
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2 changes: 2 additions & 0 deletions arch/arm/include/asm/localtimer.h
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,8 @@
#ifndef __ASM_ARM_LOCALTIMER_H
#define __ASM_ARM_LOCALTIMER_H

#include <linux/errno.h>

struct clock_event_device;

/*
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