netdev - [PATCH net-next v1 14/19] virtio_net: xsk: tx: virtnet_sq_free_unused

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Date: Mon, 16 Oct 2023 20:00:28 +0800
From: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
To: netdev@...r.kernel.org
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	"Michael S. Tsirkin" <mst@...hat.com>,
	Jason Wang <jasowang@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>,
	virtualization@...ts.linux-foundation.org,
	bpf@...r.kernel.org
Subject: [PATCH net-next v1 14/19] virtio_net: xsk: tx: virtnet_sq_free_unused_buf() check xsk buffer

virtnet_sq_free_unused_buf() check xsk buffer.

Signed-off-by: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
---
 drivers/net/virtio/main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/virtio/main.c b/drivers/net/virtio/main.c
index 1a222221352e..58bb38f9b453 100644
--- a/drivers/net/virtio/main.c
+++ b/drivers/net/virtio/main.c
@@ -3876,10 +3876,12 @@ static void free_receive_page_frags(struct virtnet_info *vi)
 
 void virtnet_sq_free_unused_buf(struct virtqueue *vq, void *buf)
 {
-	if (!virtnet_is_xdp_frame(buf))
+	if (virtnet_is_skb_ptr(buf))
 		dev_kfree_skb(buf);
-	else
+	else if (virtnet_is_xdp_frame(buf))
 		xdp_return_frame(virtnet_ptr_to_xdp(buf));
+
+	/* xsk buffer do not need handle. */
 }
 
 void virtnet_rq_free_unused_buf(struct virtqueue *vq, void *buf)
-- 
2.32.0.3.g01195cf9f