Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 041/109] net: systemport: Utilize skb_put_padto() | Date | Thu, 7 Dec 2017 13:56:25 +0100 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Florian Fainelli <f.fainelli@gmail.com>
[ 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> --- drivers/net/ethernet/broadcom/bcmsysport.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
--- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -1039,13 +1039,12 @@ static netdev_tx_t bcm_sysport_xmit(stru * (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)) {
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