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authorNam Cao <namcao@linutronix.de>2024-10-31 16:14:21 +0100
committerThomas Gleixner <tglx@linutronix.de>2024-11-07 02:47:05 +0100
commit444cb7db4c9f9b5d96be17c38b3e989df7bfabd5 (patch)
tree3cc8406fc58cd8c84696bfdf2df4e56075790638 /include/linux/hrtimer.h
parent908a1d775422ba2e27a5e33d0c130b522419e121 (diff)
hrtimers: Introduce hrtimer_setup_on_stack()
To initialize hrtimer on stack, hrtimer_init_on_stack() needs to be called and also hrtimer::function must be set. This is error-prone and awkward to use. Introduce hrtimer_setup_on_stack() which does both of these things, so that users of hrtimer can be simplified. The new setup function also has a sanity check for the provided function pointer. If NULL, a warning is emitted and a dummy callback installed. hrtimer_init_on_stack() will be removed as soon as all of its users have been converted to the new function. Signed-off-by: Nam Cao <namcao@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/4b05e2ab3a82c517adf67fabc0f0cd8fe118b97c.1730386209.git.namcao@linutronix.de
Diffstat (limited to 'include/linux/hrtimer.h')
-rw-r--r--include/linux/hrtimer.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index bcc0715c59a8..2da513f8d66a 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -232,6 +232,9 @@ extern void hrtimer_setup(struct hrtimer *timer, enum hrtimer_restart (*function
clockid_t clock_id, enum hrtimer_mode mode);
extern void hrtimer_init_on_stack(struct hrtimer *timer, clockid_t which_clock,
enum hrtimer_mode mode);
+extern void hrtimer_setup_on_stack(struct hrtimer *timer,
+ enum hrtimer_restart (*function)(struct hrtimer *),
+ clockid_t clock_id, enum hrtimer_mode mode);
extern void hrtimer_init_sleeper_on_stack(struct hrtimer_sleeper *sl,
clockid_t clock_id,
enum hrtimer_mode mode);