diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/610-v5.13-39-net-ethernet-mtk_eth_soc-fix-build_skb-cleanup.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/610-v5.13-39-net-ethernet-mtk_eth_soc-fix-build_skb-cleanup.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.10/610-v5.13-39-net-ethernet-mtk_eth_soc-fix-build_skb-cleanup.patch b/target/linux/generic/backport-5.10/610-v5.13-39-net-ethernet-mtk_eth_soc-fix-build_skb-cleanup.patch new file mode 100644 index 0000000000..dee26ccff1 --- /dev/null +++ b/target/linux/generic/backport-5.10/610-v5.13-39-net-ethernet-mtk_eth_soc-fix-build_skb-cleanup.patch @@ -0,0 +1,38 @@ +From 787082ab9f7be4711e52f67c388535eda74a1269 Mon Sep 17 00:00:00 2001 +From: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> +Date: Thu, 22 Apr 2021 22:20:56 -0700 +Subject: [PATCH] net: ethernet: mtk_eth_soc: fix build_skb cleanup + +In case build_skb fails, call skb_free_frag on the correct pointer. Also +update the DMA structures with the new mapping before exiting, because +the mapping was successful + +Suggested-by: Felix Fietkau <nbd@nbd.name> +Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/mediatek/mtk_eth_soc.c | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -1304,9 +1304,9 @@ static int mtk_poll_rx(struct napi_struc + /* receive data */ + skb = build_skb(data, ring->frag_size); + if (unlikely(!skb)) { +- skb_free_frag(new_data); ++ skb_free_frag(data); + netdev->stats.rx_dropped++; +- goto release_desc; ++ goto skip_rx; + } + skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN); + +@@ -1326,6 +1326,7 @@ static int mtk_poll_rx(struct napi_struc + skb_record_rx_queue(skb, 0); + napi_gro_receive(napi, skb); + ++skip_rx: + ring->data[idx] = new_data; + rxd->rxd1 = (unsigned int)dma_addr; + |