3ca9849589
Manually rebased: backport-5.10/611-v5.12-net-ethernet-mediatek-support-setting-MTU.patch Removed upstreamed: bcm47xx/patches-5.10/170-bgmac-fix-initial-chip-reset-to-support-BCM5358.patch[1] All other patches automatically rebased. 1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.175&id=cbf11ff3708ff163387da924f80a47ce7c721e9b Signed-off-by: John Audia <therealgraysky@proton.me>
39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From 5196c417854942e218a59ec87bf7d414b3bd581e Mon Sep 17 00:00:00 2001
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From: Felix Fietkau <nbd@nbd.name>
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Date: Thu, 22 Apr 2021 22:20:55 -0700
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Subject: [PATCH] net: ethernet: mtk_eth_soc: unmap RX data before calling
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build_skb
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Since build_skb accesses the data area (for initializing shinfo), dma unmap
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needs to happen before that call
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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[Ilya: split build_skb cleanup fix into a separate commit]
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Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/ethernet/mediatek/mtk_eth_soc.c | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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@@ -1334,6 +1334,9 @@ static int mtk_poll_rx(struct napi_struc
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goto release_desc;
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}
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+ dma_unmap_single(eth->dev, trxd.rxd1,
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+ ring->buf_size, DMA_FROM_DEVICE);
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+
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/* receive data */
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skb = build_skb(data, ring->frag_size);
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if (unlikely(!skb)) {
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@@ -1343,8 +1346,6 @@ static int mtk_poll_rx(struct napi_struc
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}
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skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN);
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- dma_unmap_single(eth->dev, trxd.rxd1,
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- ring->buf_size, DMA_FROM_DEVICE);
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pktlen = RX_DMA_GET_PLEN0(trxd.rxd2);
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skb->dev = netdev;
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skb_put(skb, pktlen);
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