diff options
Diffstat (limited to 'target/linux/mvebu/patches-5.4/020-net-mvneta-fix-build-skb-for-bm-capable-devices.patch')
| -rw-r--r-- | target/linux/mvebu/patches-5.4/020-net-mvneta-fix-build-skb-for-bm-capable-devices.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-5.4/020-net-mvneta-fix-build-skb-for-bm-capable-devices.patch b/target/linux/mvebu/patches-5.4/020-net-mvneta-fix-build-skb-for-bm-capable-devices.patch new file mode 100644 index 0000000000..94de008e76 --- /dev/null +++ b/target/linux/mvebu/patches-5.4/020-net-mvneta-fix-build-skb-for-bm-capable-devices.patch @@ -0,0 +1,41 @@ +From b37fa92e20ef28aada852cbf03b368d29a20478c Mon Sep 17 00:00:00 2001 +From: Lorenzo Bianconi <lorenzo@kernel.org> +Date: Thu, 14 Nov 2019 01:25:55 +0200 +Subject: [PATCH] net: mvneta: fix build skb for bm capable devices + +Fix build_skb for bm capable devices when they fall-back using swbm path +(e.g. when bm properties are configured in device tree but +CONFIG_MVNETA_BM_ENABLE is not set). In this case rx_offset_correction is +overwritten so we need to use it building skb instead of +MVNETA_SKB_HEADROOM directly + +Fixes: 8dc9a0888f4c ("net: mvneta: rely on build_skb in mvneta_rx_swbm poll routine") +Fixes: 0db51da7a8e9 ("net: mvneta: add basic XDP support") +Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> +Reported-by: Andrew Lunn <andrew@lunn.ch> +Tested-by: Andrew Lunn <andrew@lunn.ch> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/marvell/mvneta.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/drivers/net/ethernet/marvell/mvneta.c ++++ b/drivers/net/ethernet/marvell/mvneta.c +@@ -2165,7 +2165,7 @@ mvneta_swbm_rx_frame(struct mvneta_port + prefetch(data); + + xdp->data_hard_start = data; +- xdp->data = data + MVNETA_SKB_HEADROOM + MVNETA_MH_SIZE; ++ xdp->data = data + pp->rx_offset_correction + MVNETA_MH_SIZE; + xdp->data_end = xdp->data + data_len; + xdp_set_data_meta_invalid(xdp); + +@@ -2230,7 +2230,7 @@ mvneta_swbm_add_rx_fragment(struct mvnet + /* refill descriptor with new buffer later */ + skb_add_rx_frag(rxq->skb, + skb_shinfo(rxq->skb)->nr_frags, +- page, MVNETA_SKB_HEADROOM, data_len, ++ page, pp->rx_offset_correction, data_len, + PAGE_SIZE); + } + page_pool_release_page(rxq->page_pool, page); |