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-rw-r--r--drivers/net/can/dev/netlink.c15
-rw-r--r--include/linux/can/dev.h1
2 files changed, 13 insertions, 3 deletions
diff --git a/drivers/net/can/dev/netlink.c b/drivers/net/can/dev/netlink.c
index c77cc6ae88b6..95cca4e5251f 100644
--- a/drivers/net/can/dev/netlink.c
+++ b/drivers/net/can/dev/netlink.c
@@ -372,7 +372,8 @@ static size_t can_tdc_get_size(const struct net_device *dev)
}
if (can_tdc_is_enabled(priv)) {
- if (priv->ctrlmode & CAN_CTRLMODE_TDC_MANUAL)
+ if (priv->ctrlmode & CAN_CTRLMODE_TDC_MANUAL ||
+ priv->do_get_auto_tdcv)
size += nla_total_size(sizeof(u32)); /* IFLA_CAN_TDCV */
size += nla_total_size(sizeof(u32)); /* IFLA_CAN_TDCO */
if (priv->tdc_const->tdcf_max)
@@ -445,8 +446,16 @@ static int can_tdc_fill_info(struct sk_buff *skb, const struct net_device *dev)
goto err_cancel;
if (can_tdc_is_enabled(priv)) {
- if (priv->ctrlmode & CAN_CTRLMODE_TDC_MANUAL &&
- nla_put_u32(skb, IFLA_CAN_TDC_TDCV, tdc->tdcv))
+ u32 tdcv;
+ int err = -EINVAL;
+
+ if (priv->ctrlmode & CAN_CTRLMODE_TDC_MANUAL) {
+ tdcv = tdc->tdcv;
+ err = 0;
+ } else if (priv->do_get_auto_tdcv) {
+ err = priv->do_get_auto_tdcv(dev, &tdcv);
+ }
+ if (!err && nla_put_u32(skb, IFLA_CAN_TDC_TDCV, tdcv))
goto err_cancel;
if (nla_put_u32(skb, IFLA_CAN_TDC_TDCO, tdc->tdco))
goto err_cancel;
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 6dacbbb41e68..b4aa0f048cab 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -82,6 +82,7 @@ struct can_priv {
enum can_state *state);
int (*do_get_berr_counter)(const struct net_device *dev,
struct can_berr_counter *bec);
+ int (*do_get_auto_tdcv)(const struct net_device *dev, u32 *tdcv);
unsigned int echo_skb_max;
struct sk_buff **echo_skb;