[PATCH net-next 37/48] can: netlink: make can_tdc_changelink() FD agnostic
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: 2025-09-24 08:21:48
Also in:
linux-can
Subsystem:
can network drivers, the rest · Maintainers:
Marc Kleine-Budde, Vincent Mailhol, Linus Torvalds
From: Vincent Mailhol <mailhol@kernel.org> can_tdc_changelink() needs to access can_priv->fd making it specific to CAN FD. Change the function parameter from struct can_priv to struct data_bittiming_params. This way, the function becomes CAN FD agnostic and can be reused later on for the CAN XL TDC. Signed-off-by: Vincent Mailhol <mailhol@kernel.org> Link: https://patch.msgid.link/20250923-canxl-netlink-prep-v4-9-e720d28f66fe@kernel.org Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> --- drivers/net/can/dev/netlink.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/net/can/dev/netlink.c b/drivers/net/can/dev/netlink.c
index 17ed52d238e3..abff7b84fdce 100644
--- a/drivers/net/can/dev/netlink.c
+++ b/drivers/net/can/dev/netlink.c@@ -172,12 +172,13 @@ static int can_validate(struct nlattr *tb[], struct nlattr *data[], return 0; } -static int can_tdc_changelink(struct can_priv *priv, const struct nlattr *nla, +static int can_tdc_changelink(struct data_bittiming_params *dbt_params, + const struct nlattr *nla, struct netlink_ext_ack *extack) { struct nlattr *tb_tdc[IFLA_CAN_TDC_MAX + 1]; struct can_tdc tdc = { 0 }; - const struct can_tdc_const *tdc_const = priv->fd.tdc_const; + const struct can_tdc_const *tdc_const = dbt_params->tdc_const; int err; if (!tdc_const)
@@ -215,7 +216,7 @@ static int can_tdc_changelink(struct can_priv *priv, const struct nlattr *nla, tdc.tdcf = tdcf; } - priv->fd.tdc = tdc; + dbt_params->tdc = tdc; return 0; }
@@ -382,8 +383,8 @@ static int can_changelink(struct net_device *dev, struct nlattr *tb[], memset(&priv->fd.tdc, 0, sizeof(priv->fd.tdc)); if (data[IFLA_CAN_TDC]) { /* TDC parameters are provided: use them */ - err = can_tdc_changelink(priv, data[IFLA_CAN_TDC], - extack); + err = can_tdc_changelink(&priv->fd, + data[IFLA_CAN_TDC], extack); if (err) { priv->ctrlmode &= ~CAN_CTRLMODE_FD_TDC_MASK; return err;
--
2.51.0