| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <a3a6be42c818722ad41758457408a32163bfd9a0.1738746872.git.namcao@linutronix.de>
Date: Wed, 5 Feb 2025 11:43:27 +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>,
Marc Kleine-Budde <mkl@...gutronix.de>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>
Subject: [PATCH v2 07/24] can: 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.
Most of this patch is generated by Coccinelle. Except for the TX thrtimer
in bcm_tx_setup() because this timer is not used and the callback function
is never set. For this particular case, set the callback to
hrtimer_dummy_timeout()
Reviewed-by: Marc Kleine-Budde <mkl@...gutronix.de>
Signed-off-by: Nam Cao <namcao@...utronix.de>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: Paolo Abeni <pabeni@...hat.com>
---
v2:
- Use hrtimer_dummy_timeout() for bcm TX thrtimer
---
include/linux/hrtimer.h | 5 +++++
kernel/time/hrtimer.c | 5 -----
net/can/bcm.c | 20 ++++++++------------
net/can/isotp.c | 10 ++++------
net/can/j1939/bus.c | 4 ++--
net/can/j1939/transport.c | 8 ++------
6 files changed, 21 insertions(+), 31 deletions(-)
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index f7bfdcf0dda3..acae379541c5 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -223,6 +223,11 @@ static inline void hrtimer_cancel_wait_running(struct hrtimer *timer)
}
#endif
+static inline enum hrtimer_restart hrtimer_dummy_timeout(struct hrtimer *unused)
+{
+ return HRTIMER_NORESTART;
+}
+
/* Exported timer functions: */
/* Initialize timers: */
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index deb1aa32814e..47df6f50e12c 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -1597,11 +1597,6 @@ static inline int hrtimer_clockid_to_base(clockid_t clock_id)
return HRTIMER_BASE_MONOTONIC;
}
-static enum hrtimer_restart hrtimer_dummy_timeout(struct hrtimer *unused)
-{
- return HRTIMER_NORESTART;
-}
-
static void __hrtimer_init(struct hrtimer *timer, clockid_t clock_id,
enum hrtimer_mode mode)
{
diff --git a/net/can/bcm.c b/net/can/bcm.c
index 217049fa496e..526cb6cd901f 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -1011,13 +1011,12 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg,
op->ifindex = ifindex;
/* initialize uninitialized (kzalloc) structure */
- hrtimer_init(&op->timer, CLOCK_MONOTONIC,
- HRTIMER_MODE_REL_SOFT);
- op->timer.function = bcm_tx_timeout_handler;
+ hrtimer_setup(&op->timer, bcm_tx_timeout_handler, CLOCK_MONOTONIC,
+ HRTIMER_MODE_REL_SOFT);
/* currently unused in tx_ops */
- hrtimer_init(&op->thrtimer, CLOCK_MONOTONIC,
- HRTIMER_MODE_REL_SOFT);
+ hrtimer_setup(&op->thrtimer, hrtimer_dummy_timeout, CLOCK_MONOTONIC,
+ HRTIMER_MODE_REL_SOFT);
/* add this bcm_op to the list of the tx_ops */
list_add(&op->list, &bo->tx_ops);
@@ -1192,13 +1191,10 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg,
op->rx_ifindex = ifindex;
/* initialize uninitialized (kzalloc) structure */
- hrtimer_init(&op->timer, CLOCK_MONOTONIC,
- HRTIMER_MODE_REL_SOFT);
- op->timer.function = bcm_rx_timeout_handler;
-
- hrtimer_init(&op->thrtimer, CLOCK_MONOTONIC,
- HRTIMER_MODE_REL_SOFT);
- op->thrtimer.function = bcm_rx_thr_handler;
+ hrtimer_setup(&op->timer, bcm_rx_timeout_handler, CLOCK_MONOTONIC,
+ HRTIMER_MODE_REL_SOFT);
+ hrtimer_setup(&op->thrtimer, bcm_rx_thr_handler, CLOCK_MONOTONIC,
+ HRTIMER_MODE_REL_SOFT);
/* add this bcm_op to the list of the rx_ops */
list_add(&op->list, &bo->rx_ops);
diff --git a/net/can/isotp.c b/net/can/isotp.c
index 16046931542a..442c343afe1f 100644
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -1634,12 +1634,10 @@ static int isotp_init(struct sock *sk)
so->rx.buflen = ARRAY_SIZE(so->rx.sbuf);
so->tx.buflen = ARRAY_SIZE(so->tx.sbuf);
- hrtimer_init(&so->rxtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
- so->rxtimer.function = isotp_rx_timer_handler;
- hrtimer_init(&so->txtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
- so->txtimer.function = isotp_tx_timer_handler;
- hrtimer_init(&so->txfrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
- so->txfrtimer.function = isotp_txfr_timer_handler;
+ hrtimer_setup(&so->rxtimer, isotp_rx_timer_handler, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
+ hrtimer_setup(&so->txtimer, isotp_tx_timer_handler, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
+ hrtimer_setup(&so->txfrtimer, isotp_txfr_timer_handler, CLOCK_MONOTONIC,
+ HRTIMER_MODE_REL_SOFT);
init_waitqueue_head(&so->wait);
spin_lock_init(&so->rx_lock);
diff --git a/net/can/j1939/bus.c b/net/can/j1939/bus.c
index 486687901602..39844f14eed8 100644
--- a/net/can/j1939/bus.c
+++ b/net/can/j1939/bus.c
@@ -158,8 +158,8 @@ struct j1939_ecu *j1939_ecu_create_locked(struct j1939_priv *priv, name_t name)
ecu->addr = J1939_IDLE_ADDR;
ecu->name = name;
- hrtimer_init(&ecu->ac_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
- ecu->ac_timer.function = j1939_ecu_timer_handler;
+ hrtimer_setup(&ecu->ac_timer, j1939_ecu_timer_handler, CLOCK_MONOTONIC,
+ HRTIMER_MODE_REL_SOFT);
INIT_LIST_HEAD(&ecu->list);
j1939_priv_get(priv);
diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c
index 95f7a7e65a73..a0d350871745 100644
--- a/net/can/j1939/transport.c
+++ b/net/can/j1939/transport.c
@@ -1510,12 +1510,8 @@ static struct j1939_session *j1939_session_new(struct j1939_priv *priv,
skcb = j1939_skb_to_cb(skb);
memcpy(&session->skcb, skcb, sizeof(session->skcb));
- hrtimer_init(&session->txtimer, CLOCK_MONOTONIC,
- HRTIMER_MODE_REL_SOFT);
- session->txtimer.function = j1939_tp_txtimer;
- hrtimer_init(&session->rxtimer, CLOCK_MONOTONIC,
- HRTIMER_MODE_REL_SOFT);
- session->rxtimer.function = j1939_tp_rxtimer;
+ hrtimer_setup(&session->txtimer, j1939_tp_txtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
+ hrtimer_setup(&session->rxtimer, j1939_tp_rxtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
netdev_dbg(priv->ndev, "%s: 0x%p: sa: %02x, da: %02x\n",
__func__, session, skcb->addr.sa, skcb->addr.da);
--
2.39.5
Powered by blists - more mailing lists