Thread (7 messages) 7 messages, 2 authors, 2020-02-24

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

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From: Paul Cercueil <paul@crapouillou.net>
Date: 2020-02-11 16:03:46
Also in: linux-mmc, lkml
Subsystem: hibernation (aka software suspend, aka swsusp), power management core, suspend to ram, the rest · Maintainers: "Rafael J. Wysocki", Linus Torvalds

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(+)
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
  *
-- 
2.25.0
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