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net: systemport: Utilize skb_put_padto()

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[ Upstream commit bb7da333d0a9f3bddc08f84187b7579a3f68fd24 ]

Since we need to pad our packets, utilize skb_put_padto() which
increases skb->len by how much we need to pad, allowing us to eliminate
the test on skb->len right below.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Florian Fainelli 2017-01-03 16:34:48 -08:00 committed by Greg Kroah-Hartman
parent 30bd002c45
commit bcc7511ef2
1 changed files with 2 additions and 3 deletions
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5
drivers/net/ethernet/broadcom/bcmsysport.c
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@ -1039,13 +1039,12 @@ static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb,
* (including FCS and tag) because the length verification is done after
* the Broadcom tag is stripped off the ingress packet.
*/
if (skb_padto(skb, ETH_ZLEN + ENET_BRCM_TAG_LEN)) {
if (skb_put_padto(skb, ETH_ZLEN + ENET_BRCM_TAG_LEN)) {
ret = NETDEV_TX_OK;
goto out;
}
skb_len = skb->len < ETH_ZLEN + ENET_BRCM_TAG_LEN ?
ETH_ZLEN + ENET_BRCM_TAG_LEN : skb->len;
skb_len = skb->len;
mapping = dma_map_single(kdev, skb->data, skb_len, DMA_TO_DEVICE);
if (dma_mapping_error(kdev, mapping)) {