mfd: ipaq-micro: Use __maybe_unused to hide pm functions

arndb · Lee Jones · commit dcdf11739d76 · 2016-03-16T08:50:41.000Z
The ipaq-micro driver uses SET_SYSTEM_SLEEP_PM_OPS() to
remove the reference to its resume function, but does
not use an #ifdef around the definition, so we get
a build warning:

drivers/mfd/ipaq-micro.c:379:12: error: 'micro_resume' defined but not used [-Werror=unused-function]

This adds a __maybe_unused annotation so the compiler knows
it can silently drop it instead of warning.

Signed-off-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: Lee Jones &lt;lee.jones@linaro.org&gt;
diff --git a/drivers/mfd/ipaq-micro.c b/drivers/mfd/ipaq-micro.c
@@ -376,7 +376,7 @@ static const struct mfd_cell micro_cells[] = {
 	{ .name = "ipaq-micro-leds", },
 };
 
-static int micro_resume(struct device *dev)
+static int __maybe_unused micro_resume(struct device *dev)
 {
 	struct ipaq_micro *micro = dev_get_drvdata(dev);
 

Original file line number	Diff line number	Diff line change
`@@ -376,7 +376,7 @@ static const struct mfd_cell micro_cells[] = {`
`376`	`376`	`{ .name = "ipaq-micro-leds", },`
`377`	`377`	`};`
`378`	`378`
`379`		`-static int micro_resume(struct device *dev)`
	`379`	`+static int __maybe_unused micro_resume(struct device *dev)`
`380`	`380`	`{`
`381`	`381`	`struct ipaq_micro *micro = dev_get_drvdata(dev);`
`382`	`382`