[PATCH net-next v2 19/21] virtio_net: xsk: rx: virtnet_rq_free_unused_buf() check xsk buffer

Xuan Zhuo
2023-11-07T03:12:59Z

Since this will be called in other circumstances(freeze), we must check
whether it is xsk's buffer in this function. It cannot be judged outside
this function.

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
---
drivers/net/virtio/main.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/net/virtio/main.c b/drivers/net/virtio/main.c
index 095f4acb0577..42c7dbf53e63 100644
--- a/drivers/net/virtio/main.c
+++ b/drivers/net/virtio/main.c
@@ -3948,6 +3948,14 @@ void virtnet_rq_free_unused_buf(struct virtqueue *vq, void *buf)

rq = &vi->rq[i];

+ if (rq->xsk.pool) {
+ struct xdp_buff *xdp;
+
+ xdp = (struct xdp_buff *)buf;
+ xsk_buff_free(xdp);
+ return;
+ }
+
if (rq->do_dma_unmap)
virtnet_rq_unmap(rq, buf, 0);

--
2.32.0.3.g01195cf9f