linux-kernel - [tip: timers/cleanups] drivers: perf: Switch to use hrtimer

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Message-ID: <173987439641.10177.16703387668206704562.tip-bot2@tip-bot2>
Date: Tue, 18 Feb 2025 10:26:36 -0000
From: "tip-bot2 for Nam Cao" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Nam Cao <namcao@...utronix.de>, Thomas Gleixner <tglx@...utronix.de>,
 Zack Rusin <zack.rusin@...adcom.com>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: timers/cleanups] drivers: perf: Switch to use hrtimer_setup()

The following commit has been merged into the timers/cleanups branch of tip:

Commit-ID:     5f8401cf7b3af468b29770d31cc993c2b6e5f027
Gitweb:        https://git.kernel.org/tip/5f8401cf7b3af468b29770d31cc993c2b6e5f027
Author:        Nam Cao <namcao@...utronix.de>
AuthorDate:    Wed, 05 Feb 2025 11:46:07 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Tue, 18 Feb 2025 11:19:04 +01:00

drivers: perf: 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>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Acked-by: Zack Rusin <zack.rusin@...adcom.com>
Link: https://lore.kernel.org/all/471ea3b829d14a4b4c3c7814dbe1ed13b15d47b8.1738746904.git.namcao@linutronix.de

---
 drivers/perf/arm-ccn.c               | 5 ++---
 drivers/perf/marvell_cn10k_ddr_pmu.c | 4 ++--
 drivers/perf/thunderx2_pmu.c         | 5 ++---
 3 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c
index d5fcea3..1a0d0e1 100644
--- a/drivers/perf/arm-ccn.c
+++ b/drivers/perf/arm-ccn.c
@@ -1273,9 +1273,8 @@ static int arm_ccn_pmu_init(struct arm_ccn *ccn)
 	/* No overflow interrupt? Have to use a timer instead. */
 	if (!ccn->irq) {
 		dev_info(ccn->dev, "No access to interrupts, using timer.\n");
-		hrtimer_init(&ccn->dt.hrtimer, CLOCK_MONOTONIC,
-				HRTIMER_MODE_REL);
-		ccn->dt.hrtimer.function = arm_ccn_pmu_timer_handler;
+		hrtimer_setup(&ccn->dt.hrtimer, arm_ccn_pmu_timer_handler, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 	}
 
 	/* Pick one CPU which we will use to collect data from CCN... */
diff --git a/drivers/perf/marvell_cn10k_ddr_pmu.c b/drivers/perf/marvell_cn10k_ddr_pmu.c
index 039fede..72ac17e 100644
--- a/drivers/perf/marvell_cn10k_ddr_pmu.c
+++ b/drivers/perf/marvell_cn10k_ddr_pmu.c
@@ -1064,8 +1064,8 @@ static int cn10k_ddr_perf_probe(struct platform_device *pdev)
 	if (!name)
 		return -ENOMEM;
 
-	hrtimer_init(&ddr_pmu->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	ddr_pmu->hrtimer.function = cn10k_ddr_pmu_timer_handler;
+	hrtimer_setup(&ddr_pmu->hrtimer, cn10k_ddr_pmu_timer_handler, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	cpuhp_state_add_instance_nocalls(
 				CPUHP_AP_PERF_ARM_MARVELL_CN10K_DDR_ONLINE,
diff --git a/drivers/perf/thunderx2_pmu.c b/drivers/perf/thunderx2_pmu.c
index cadd602..6ed4707 100644
--- a/drivers/perf/thunderx2_pmu.c
+++ b/drivers/perf/thunderx2_pmu.c
@@ -752,9 +752,8 @@ static int tx2_uncore_pmu_add_dev(struct tx2_uncore_pmu *tx2_pmu)
 	tx2_pmu->cpu = cpu;
 
 	if (tx2_pmu->hrtimer_callback) {
-		hrtimer_init(&tx2_pmu->hrtimer,
-				CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		tx2_pmu->hrtimer.function = tx2_pmu->hrtimer_callback;
+		hrtimer_setup(&tx2_pmu->hrtimer, tx2_pmu->hrtimer_callback, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 	}
 
 	ret = tx2_uncore_pmu_register(tx2_pmu);