Commit 41a337b4 authored by Richard Fitzgerald's avatar Richard Fitzgerald Committed by Rafael J. Wysocki
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PM: Add EXPORT macros for exporting PM functions 



Add a pair of macros for exporting functions only if CONFIG_PM
is enabled.

The naming follows the style of the standard EXPORT_SYMBOL_*()
macros that they replace.

Sometimes a module wants to export PM functions directly to other
drivers, not a complete struct dev_pm_ops. A typical example is
where a core library exports the generic (shared) implementation
and calling code wraps one or more of these in custom code.

Signed-off-by: default avatarRichard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 450316dc

include/linux/pm.h

+4 −0
Original line number Diff line number Diff line
@@ -379,9 +379,13 @@ const struct dev_pm_ops name = { \ 
	const struct dev_pm_ops name;					\

	__EXPORT_SYMBOL(name, sec, ns);					\

	const struct dev_pm_ops name

#define EXPORT_PM_FN_GPL(name)		EXPORT_SYMBOL_GPL(name)

#define EXPORT_PM_FN_NS_GPL(name, ns)	EXPORT_SYMBOL_NS_GPL(name, ns)

#else

#define _EXPORT_DEV_PM_OPS(name, sec, ns)				\

	static __maybe_unused const struct dev_pm_ops __static_##name

#define EXPORT_PM_FN_GPL(name)

#define EXPORT_PM_FN_NS_GPL(name, ns)

#endif



#define EXPORT_DEV_PM_OPS(name) _EXPORT_DEV_PM_OPS(name, "", "")