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net: mvneta: fix build skb for bm capable devices

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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: 8dc9a0888f ("net: mvneta: rely on build_skb in mvneta_rx_swbm poll routine")
Fixes: 0db51da7a8 ("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>
This commit is contained in:
Lorenzo Bianconi 2019-11-14 01:25:55 +02:00 • committed by David S. Miller
parent f97d139aaa
commit b37fa92e20
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/marvell/mvneta.c
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@ -2154,7 +2154,7 @@ mvneta_swbm_rx_frame(struct mvneta_port *pp,
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);
@ -2219,7 +2219,7 @@ mvneta_swbm_add_rx_fragment(struct mvneta_port *pp,
/* 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);