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ARM: AM335x: Fix warning in timer.c 

When compiling the kernel with configuration options ...

 # CONFIG_ARCH_OMAP2 is not set
 # CONFIG_ARCH_OMAP3 is not set
 # CONFIG_ARCH_OMAP4 is not set
 # CONFIG_SOC_OMAP5 is not set
 CONFIG_SOC_AM33XX=y

 ... the following build warning is seen.

  CC      arch/arm/mach-omap2/timer.o
  arch/arm/mach-omap2/timer.c:395:19: warning: ‘omap2_sync32k_clocksource_init’
  	defined but not used [-Wunused-function]

This issue was introduced by commit 6f80b3b (ARM: OMAP2+: timer: remove
CONFIG_OMAP_32K_TIMER) where the omap2_sync32k_clocksource_init() is no
longer referenced by the timer initialisation function for the AM335x
device as it has no 32k-sync timer.

Fix this by adding the "__maybe_unused" compiler directive to the
omap2_sync32k_clocksource_init() function to indicate that this function
may be used for certain configurations.

Cc: Igor Grinberg <grinberg@compulab.co.il>

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
This commit is contained in:
Jon Hunter 2012-11-27 15:24:12 -06:00
parent 34cceb7464
commit e0c3e27ce1
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mach-omap2/timer.c
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@ -392,7 +392,7 @@ static struct of_device_id omap_counter_match[] __initdata = {
};
/* Setup free-running counter for clocksource */
static int __init omap2_sync32k_clocksource_init(void)
static int __init __maybe_unused omap2_sync32k_clocksource_init(void)
{
int ret;
struct device_node *np = NULL;