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[RFC,1/3] PM: introduce pm_ptr() and pm_sleep_ptr()

Message ID 20200211160321.22124-2-paul@crapouillou.net (mailing list archive)
State RFC, archived
Headers show
Series Introduce pm_ptr() / pm_sleep_ptr() | expand

Commit Message

Paul Cercueil Feb. 11, 2020, 4:03 p.m. UTC 
These macros are analogous to the infamous of_match_ptr(). If CONFIG_PM
or CONFIG_PM_SLEEP are enabled (respectively), these macros will resolve
to their argument, otherwise to NULL.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 include/linux/pm.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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Patch

diff --git a/include/linux/pm.h b/include/linux/pm.h
index e057d1fa2469..1e183d78a1ae 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -374,6 +374,18 @@  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
+
+#ifdef CONFIG_PM_SLEEP
+#define pm_sleep_ptr(_ptr) (_ptr)
+#else
+#define pm_sleep_ptr(_ptr) NULL
+#endif
+
 /*
  * PM_EVENT_ messages
  *