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([121.185.186.233]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7d15f26f11fsm5408499b3a.50.2025.11.28.08.06.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Nov 2025 08:06:13 -0800 (PST) From: Jeongjun Park To: stable@vger.kernel.org Cc: gregkh@linuxfoundation.org, tglx@linutronix.de, Julia.Lawall@inria.fr, akpm@linux-foundation.org, anna-maria@linutronix.de, arnd@arndb.de, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, linux@roeck-us.net, luiz.dentz@gmail.com, marcel@holtmann.org, maz@kernel.org, peterz@infradead.org, rostedt@goodmis.org, sboyd@kernel.org, viresh.kumar@linaro.org, aha310510@gmail.com, linux-staging@lists.linux.dev, Jacob Keller Subject: [PATCH 5.15.y 05/14] timers: Get rid of del_singleshot_timer_sync() Date: Sat, 29 Nov 2025 01:05:30 +0900 Message-Id: <20251128160539.358938-6-aha310510@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251128160539.358938-1-aha310510@gmail.com> References: <20251128160539.358938-1-aha310510@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Thomas Gleixner [ Upstream commit 9a5a305686971f4be10c6d7251c8348d74b3e014 ] del_singleshot_timer_sync() used to be an optimization for deleting timers which are not rearmed from the timer callback function. This optimization turned out to be broken and got mapped to del_timer_sync() about 17 years ago. Get rid of the undocumented indirection and use del_timer_sync() directly. No functional change. Signed-off-by: Thomas Gleixner Tested-by: Guenter Roeck Reviewed-by: Jacob Keller Reviewed-by: Anna-Maria Behnsen Link: https://lore.kernel.org/r/20221123201624.706987932@linutronix.de Signed-off-by: Jeongjun Park --- drivers/char/tpm/tpm-dev-common.c | 4 ++-- drivers/staging/wlan-ng/hfa384x_usb.c | 4 ++-- drivers/staging/wlan-ng/prism2usb.c | 6 +++--- include/linux/timer.h | 2 -- kernel/time/timer.c | 2 +- net/sunrpc/xprt.c | 2 +- 6 files changed, 9 insertions(+), 11 deletions(-) diff --git a/drivers/char/tpm/tpm-dev-common.c b/drivers/char/tpm/tpm-dev-c= ommon.c index 56e56a09cc90..c3fbbf4d3db7 100644 --- a/drivers/char/tpm/tpm-dev-common.c +++ b/drivers/char/tpm/tpm-dev-common.c @@ -157,7 +157,7 @@ ssize_t tpm_common_read(struct file *file, char __user = *buf, out: if (!priv->response_length) { *off =3D 0; - del_singleshot_timer_sync(&priv->user_read_timer); + del_timer_sync(&priv->user_read_timer); flush_work(&priv->timeout_work); } mutex_unlock(&priv->buffer_mutex); @@ -264,7 +264,7 @@ __poll_t tpm_common_poll(struct file *file, poll_table = *wait) void tpm_common_release(struct file *file, struct file_priv *priv) { flush_work(&priv->async_work); - del_singleshot_timer_sync(&priv->user_read_timer); + del_timer_sync(&priv->user_read_timer); flush_work(&priv->timeout_work); file->private_data =3D NULL; priv->response_length =3D 0; diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-n= g/hfa384x_usb.c index 0d869b5e309c..8687e0bf3315 100644 --- a/drivers/staging/wlan-ng/hfa384x_usb.c +++ b/drivers/staging/wlan-ng/hfa384x_usb.c @@ -1116,8 +1116,8 @@ static int hfa384x_usbctlx_complete_sync(struct hfa38= 4x *hw, if (ctlx =3D=3D get_active_ctlx(hw)) { spin_unlock_irqrestore(&hw->ctlxq.lock, flags); =20 - del_singleshot_timer_sync(&hw->reqtimer); - del_singleshot_timer_sync(&hw->resptimer); + del_timer_sync(&hw->reqtimer); + del_timer_sync(&hw->resptimer); hw->req_timer_done =3D 1; hw->resp_timer_done =3D 1; usb_kill_urb(&hw->ctlx_urb); diff --git a/drivers/staging/wlan-ng/prism2usb.c b/drivers/staging/wlan-ng/= prism2usb.c index 4b08dc1da4f9..83fcb937a58e 100644 --- a/drivers/staging/wlan-ng/prism2usb.c +++ b/drivers/staging/wlan-ng/prism2usb.c @@ -171,9 +171,9 @@ static void prism2sta_disconnect_usb(struct usb_interfa= ce *interface) */ prism2sta_ifstate(wlandev, P80211ENUM_ifstate_disable); =20 - del_singleshot_timer_sync(&hw->throttle); - del_singleshot_timer_sync(&hw->reqtimer); - del_singleshot_timer_sync(&hw->resptimer); + del_timer_sync(&hw->throttle); + del_timer_sync(&hw->reqtimer); + del_timer_sync(&hw->resptimer); =20 /* Unlink all the URBs. This "removes the wheels" * from the entire CTLX handling mechanism. diff --git a/include/linux/timer.h b/include/linux/timer.h index e78521bce565..3c166b4f704d 100644 --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -198,8 +198,6 @@ static inline int del_timer_sync(struct timer_list *tim= er) return timer_delete_sync(timer); } =20 -#define del_singleshot_timer_sync(t) del_timer_sync(t) - extern void init_timers(void); struct hrtimer; extern enum hrtimer_restart it_real_fn(struct hrtimer *); diff --git a/kernel/time/timer.c b/kernel/time/timer.c index d4ce3ebe2c8c..6cd908cfbad4 100644 --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -1912,7 +1912,7 @@ signed long __sched schedule_timeout(signed long time= out) timer_setup_on_stack(&timer.timer, process_timeout, 0); __mod_timer(&timer.timer, expire, MOD_TIMER_NOTPENDING); schedule(); - del_singleshot_timer_sync(&timer.timer); + del_timer_sync(&timer.timer); =20 /* Remove the timer from the object tracker */ destroy_timer_on_stack(&timer.timer); diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index 2db834318d14..2bccb5a90934 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -1160,7 +1160,7 @@ xprt_request_enqueue_receive(struct rpc_task *task) spin_unlock(&xprt->queue_lock); =20 /* Turn off autodisconnect */ - del_singleshot_timer_sync(&xprt->timer); + del_timer_sync(&xprt->timer); } =20 /** --