Hi Rafael,
Le dim. 26 avril 2020 à 17:40, Rafael J. Wysocki <rjw@xxxxxxxxxxxxx> a
écrit :
On Monday, April 13, 2020 2:32:05 PM CEST Paul Cercueil wrote:
This macro is analogous to the infamous of_match_ptr(). If CONFIG_PM
is enabled, this macro will resolve to its argument, otherwise to
NULL.
Well, this is going to result in quite a bit of unused code being
added to the kernels built with CONFIG_PM unset.
Is there any way to avoid that somehow?
Using __maybe_unused on the dev_pm_ops struct and the callbacks, as
long as they are static, they should be dropped by the compiler when
CONFIG_PM is not set.
-Paul
Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
---
Notes:
v2: Remove pm_sleep_ptr() macro
include/linux/pm.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/linux/pm.h b/include/linux/pm.h
index e057d1fa2469..1c0eec06905d 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -374,6 +374,12 @@ const struct dev_pm_ops name = { \
SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
}
+#ifdef CONFIG_PM
+#define pm_ptr(_ptr) (_ptr)
+#else
+#define pm_ptr(_ptr) NULL
+#endif
+
/*
* PM_EVENT_ messages
*
