Commit 78e0a006 authored Oct 14, 2021 by 蒋家盛 Committed by Jakub Kicinski Oct 14, 2021

hv_netvsc: Add comment of netvsc_xdp_xmit()



Adding comment to avoid the misusing of netvsc_xdp_xmit().
Otherwise the value of skb->queue_mapping could be 0 and
then the return value of skb_get_rx_queue() could be MAX_U16
cause by overflow.

Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Link: https://lore.kernel.org/r/1634174786-1810351-1-git-send-email-jiasheng@iscas.ac.cn


Signed-off-by: Jakub Kicinski <kuba@kernel.org>

parent c47fedba

drivers/net/hyperv/netvsc_drv.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -803,6 +803,7 @@ void netvsc_linkstatus_callback(struct net_device *net,
		schedule_delayed_work(&ndev_ctx->dwork, 0);
		}

		/* This function should only be called after skb_record_rx_queue() */
		static void netvsc_xdp_xmit(struct sk_buff skb, struct net_device ndev)
		{
		int rc;