netdev - [PATCH net-next 26/48] can: dev: turn can_set_static

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Message-ID: <20250925121332.848157-27-mkl@pengutronix.de>
Date: Thu, 25 Sep 2025 14:08:03 +0200
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	kuba@...nel.org,
	linux-can@...r.kernel.org,
	kernel@...gutronix.de,
	Vincent Mailhol <mailhol@...nel.org>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net-next 26/48] can: dev: turn can_set_static_ctrlmode() into a non-inline function

From: Vincent Mailhol <mailhol@...nel.org>

can_set_static_ctrlmode() is declared as a static inline. But it is
only called in the probe function of the devices and so does not
really benefit from any kind of optimization.

Transform it into a "normal" function by moving it to

  drivers/net/can/dev/dev.c

Signed-off-by: Vincent Mailhol <mailhol@...nel.org>
Link: https://patch.msgid.link/20250923-can-fix-mtu-v3-2-581bde113f52@kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/dev/dev.c | 21 +++++++++++++++++++++
 include/linux/can/dev.h   | 23 ++---------------------
 2 files changed, 23 insertions(+), 21 deletions(-)

diff --git a/drivers/net/can/dev/dev.c b/drivers/net/can/dev/dev.c
index 99b78cbb2252..02bfed37cc93 100644
--- a/drivers/net/can/dev/dev.c
+++ b/drivers/net/can/dev/dev.c
@@ -347,6 +347,27 @@ int can_change_mtu(struct net_device *dev, int new_mtu)
 }
 EXPORT_SYMBOL_GPL(can_change_mtu);
 
+/* helper to define static CAN controller features at device creation time */
+int can_set_static_ctrlmode(struct net_device *dev, u32 static_mode)
+{
+	struct can_priv *priv = netdev_priv(dev);
+
+	/* alloc_candev() succeeded => netdev_priv() is valid at this point */
+	if (priv->ctrlmode_supported & static_mode) {
+		netdev_warn(dev,
+			    "Controller features can not be supported and static at the same time\n");
+		return -EINVAL;
+	}
+	priv->ctrlmode = static_mode;
+
+	/* override MTU which was set by default in can_setup()? */
+	if (static_mode & CAN_CTRLMODE_FD)
+		dev->mtu = CANFD_MTU;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(can_set_static_ctrlmode);
+
 /* generic implementation of netdev_ops::ndo_eth_ioctl for CAN devices
  * supporting hardware timestamps
  */
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 9a92cbe5b2cb..5dc58360c2d7 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -125,27 +125,6 @@ static inline s32 can_get_relative_tdco(const struct can_priv *priv)
 	return (s32)priv->fd.tdc.tdco - sample_point_in_tc;
 }
 
-/* helper to define static CAN controller features at device creation time */
-static inline int __must_check can_set_static_ctrlmode(struct net_device *dev,
-						       u32 static_mode)
-{
-	struct can_priv *priv = netdev_priv(dev);
-
-	/* alloc_candev() succeeded => netdev_priv() is valid at this point */
-	if (priv->ctrlmode_supported & static_mode) {
-		netdev_warn(dev,
-			    "Controller features can not be supported and static at the same time\n");
-		return -EINVAL;
-	}
-	priv->ctrlmode = static_mode;
-
-	/* override MTU which was set by default in can_setup()? */
-	if (static_mode & CAN_CTRLMODE_FD)
-		dev->mtu = CANFD_MTU;
-
-	return 0;
-}
-
 static inline u32 can_get_static_ctrlmode(struct can_priv *priv)
 {
 	return priv->ctrlmode & ~priv->ctrlmode_supported;
@@ -188,6 +167,8 @@ struct can_priv *safe_candev_priv(struct net_device *dev);
 int open_candev(struct net_device *dev);
 void close_candev(struct net_device *dev);
 int can_change_mtu(struct net_device *dev, int new_mtu);
+int __must_check can_set_static_ctrlmode(struct net_device *dev,
+					 u32 static_mode);
 int can_eth_ioctl_hwts(struct net_device *netdev, struct ifreq *ifr, int cmd);
 int can_ethtool_op_get_ts_info_hwts(struct net_device *dev,
 				    struct kernel_ethtool_ts_info *info);
-- 
2.51.0