linux-kernel - [PATCH v2 21/31] bpf: Switch to use hrtimer

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Message-Id: <e4be2486f02a8e0ef5aa42624f1708d23e88ad57.1738746821.git.namcao@linutronix.de>
Date: Wed,  5 Feb 2025 11:39:05 +0100
From: Nam Cao <namcao@...utronix.de>
To: Anna-Maria Behnsen <anna-maria@...utronix.de>,
	Frederic Weisbecker <frederic@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org
Cc: Nam Cao <namcao@...utronix.de>,
	Alexei Starovoitov <ast@...nel.org>
Subject: [PATCH v2 21/31] bpf: Switch to use hrtimer_setup()

hrtimer_setup() takes the callback function pointer as argument and
initializes the timer completely.

Replace hrtimer_init() and the open coded initialization of
hrtimer::function with the new setup mechanism.

Patch was created by using Coccinelle.

Signed-off-by: Nam Cao <namcao@...utronix.de>
Cc: Alexei Starovoitov <ast@...nel.org>
---
 kernel/bpf/helpers.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index f27ce162427a..672abe111282 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -1284,8 +1284,7 @@ static int __bpf_async_init(struct bpf_async_kern *async, struct bpf_map *map, u
 
 		atomic_set(&t->cancelling, 0);
 		INIT_WORK(&t->cb.delete_work, bpf_timer_delete_work);
-		hrtimer_init(&t->timer, clockid, HRTIMER_MODE_REL_SOFT);
-		t->timer.function = bpf_timer_cb;
+		hrtimer_setup(&t->timer, bpf_timer_cb, clockid, HRTIMER_MODE_REL_SOFT);
 		cb->value = (void *)async - map->record->timer_off;
 		break;
 	case BPF_ASYNC_TYPE_WQ:
-- 
2.39.5