target/linux/generic/pending-5.15/732-01-net-ethernet-mtk_eth_soc-account-for-vlan-in-rx-head.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Thu, 27 Oct 2022 19:50:31 +0200
   3 Subject: [PATCH] net: ethernet: mtk_eth_soc: account for vlan in rx
   4  header length
   5
   6 The network stack assumes that devices can handle an extra VLAN tag without
   7 increasing the MTU
   8
   9 Signed-off-by: Felix Fietkau <nbd@nbd.name>
  10 ---
  11
  12 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
  13 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
  14 @@ -29,7 +29,7 @@
  15  #define MTK_TX_DMA_BUF_LEN_V2  0xffff
  16  #define MTK_DMA_SIZE           512
  17  #define MTK_MAC_COUNT          2
  18 -#define MTK_RX_ETH_HLEN                (ETH_HLEN + ETH_FCS_LEN)
  19 +#define MTK_RX_ETH_HLEN                (VLAN_ETH_HLEN + ETH_FCS_LEN)
  20  #define MTK_RX_HLEN            (NET_SKB_PAD + MTK_RX_ETH_HLEN + NET_IP_ALIGN)
  21  #define MTK_DMA_DUMMY_DESC     0xffffffff
  22  #define MTK_DEFAULT_MSG_ENABLE (NETIF_MSG_DRV | \