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authorThomas Gleixner <tglx@linutronix.de>2020-12-15 10:48:07 +0100
committerThomas Gleixner <tglx@linutronix.de>2020-12-15 10:48:07 +0100
commit3c41e57a1e168d879e923c5583adeae47eec9f64 (patch)
treee6272012c4b766189be2821316a3d23d115f5195 /drivers/net/can/dev.c
parentirq: Call tick_irq_enter() inside HARDIRQ_OFFSET (diff)
parentirqchip/qcom-pdc: Fix phantom irq when changing between rising/falling (diff)
downloadwireguard-linux-3c41e57a1e168d879e923c5583adeae47eec9f64.tar.xz
wireguard-linux-3c41e57a1e168d879e923c5583adeae47eec9f64.zip
Merge tag 'irqchip-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Pull irqchip updates for 5.11 from Marc Zyngier: - Preliminary support for managed interrupts on platform devices - Correctly identify allocation of MSIs proxyied by another device - Remove the fasteoi IPI flow which has been proved useless - Generalise the Ocelot support to new SoCs - Improve GICv4.1 vcpu entry, matching the corresponding KVM optimisation - Work around spurious interrupts on Qualcomm PDC - Random fixes and cleanups Link: https://lore.kernel.org/r/20201212135626.1479884-1-maz@kernel.org
Diffstat (limited to 'drivers/net/can/dev.c')
-rw-r--r--drivers/net/can/dev.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index b70ded3760f2..81e39d7507d8 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -512,9 +512,13 @@ __can_get_echo_skb(struct net_device *dev, unsigned int idx, u8 *len_ptr)
*/
struct sk_buff *skb = priv->echo_skb[idx];
struct canfd_frame *cf = (struct canfd_frame *)skb->data;
- u8 len = cf->len;
- *len_ptr = len;
+ /* get the real payload length for netdev statistics */
+ if (cf->can_id & CAN_RTR_FLAG)
+ *len_ptr = 0;
+ else
+ *len_ptr = cf->len;
+
priv->echo_skb[idx] = NULL;
return skb;
@@ -538,7 +542,11 @@ unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx)
if (!skb)
return 0;
- netif_rx(skb);
+ skb_get(skb);
+ if (netif_rx(skb) == NET_RX_SUCCESS)
+ dev_consume_skb_any(skb);
+ else
+ dev_kfree_skb_any(skb);
return len;
}
@@ -584,7 +592,7 @@ static void can_restart(struct net_device *dev)
cf->can_id |= CAN_ERR_RESTARTED;
- netif_rx(skb);
+ netif_rx_ni(skb);
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;