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| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2015-12-13 21:27:04 +0300 |
|---|---|---|
| committer | Zefan Li <lizefan@huawei.com> | 2016-10-26 23:15:38 +0800 |
| commit | efd171004345809f4f4ce7e147028d865ab78f68 (patch) | |
| tree | 50dd22be44bdbbceef2c2ae11377b140575dd8a4 | |
| parent | 7b4eaec6943f0b7c77e445407215f5730210ed84 (diff) | |
| download | linux-stable-efd171004345809f4f4ce7e147028d865ab78f68.tar.gz linux-stable-efd171004345809f4f4ce7e147028d865ab78f68.tar.bz2 linux-stable-efd171004345809f4f4ce7e147028d865ab78f68.zip | |
sh_eth: fix TX buffer byte-swapping
commit 3e2309937f1e5d538ff13da5fb8de41196927c61 upstream.
For the little-endian SH771x kernels the driver has to byte-swap the RX/TX
buffers, however yet unset physcial address from the TX descriptor is used
to call sh_eth_soft_swap(). Use 'skb->data' instead...
Fixes: 31fcb99d9958 ("net: sh_eth: remove __flush_purge_region")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Zefan Li <lizefan@huawei.com>
| -rw-r--r-- | drivers/net/ethernet/renesas/sh_eth.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 16caebaec007..53f5a96e99c3 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -1513,8 +1513,7 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev) txdesc = &mdp->tx_ring[entry]; /* soft swap. */ if (!mdp->cd->hw_swap) - sh_eth_soft_swap(phys_to_virt(ALIGN(txdesc->addr, 4)), - skb->len + 2); + sh_eth_soft_swap(PTR_ALIGN(skb->data, 4), skb->len + 2); txdesc->addr = dma_map_single(&ndev->dev, skb->data, skb->len, DMA_TO_DEVICE); if (skb->len < ETHERSMALL) |