diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/dsa/tag_dsa.c | 28 |
1 files changed, 8 insertions, 20 deletions
diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c index 04646dd71c6c..112c7c6dd568 100644 --- a/net/dsa/tag_dsa.c +++ b/net/dsa/tag_dsa.c @@ -129,21 +129,17 @@ static struct sk_buff *dsa_xmit_ll(struct sk_buff *skb, struct net_device *dev, u8 *dsa_header; if (skb->protocol == htons(ETH_P_8021Q)) { - /* - * Construct tagged FROM_CPU DSA tag from 802.1q tag. - */ if (extra) { skb_push(skb, extra); memmove(skb->data, skb->data + extra, 2 * ETH_ALEN); } + /* Construct tagged FROM_CPU DSA tag from 802.1Q tag. */ dsa_header = skb->data + 2 * ETH_ALEN + extra; dsa_header[0] = (DSA_CMD_FROM_CPU << 6) | 0x20 | dp->ds->index; dsa_header[1] = dp->index << 3; - /* - * Move CFI field from byte 2 to byte 1. - */ + /* Move CFI field from byte 2 to byte 1. */ if (dsa_header[2] & 0x10) { dsa_header[1] |= 0x01; dsa_header[2] &= ~0x10; @@ -152,9 +148,7 @@ static struct sk_buff *dsa_xmit_ll(struct sk_buff *skb, struct net_device *dev, skb_push(skb, DSA_HLEN + extra); memmove(skb->data, skb->data + DSA_HLEN + extra, 2 * ETH_ALEN); - /* - * Construct untagged FROM_CPU DSA tag. - */ + /* Construct untagged FROM_CPU DSA tag. */ dsa_header = skb->data + 2 * ETH_ALEN + extra; dsa_header[0] = (DSA_CMD_FROM_CPU << 6) | dp->ds->index; dsa_header[1] = dp->index << 3; @@ -173,9 +167,7 @@ static struct sk_buff *dsa_rcv_ll(struct sk_buff *skb, struct net_device *dev, enum dsa_cmd cmd; u8 *dsa_header; - /* - * The ethertype field is part of the DSA header. - */ + /* The ethertype field is part of the DSA header. */ dsa_header = skb->data - 2; cmd = dsa_header[0] >> 6; @@ -236,8 +228,7 @@ static struct sk_buff *dsa_rcv_ll(struct sk_buff *skb, struct net_device *dev, if (dsa_header[0] & 0x20) { u8 new_header[4]; - /* - * Insert 802.1q ethertype and copy the VLAN-related + /* Insert 802.1Q ethertype and copy the VLAN-related * fields, but clear the bit that will hold CFI (since * DSA uses that bit location for another purpose). */ @@ -246,16 +237,13 @@ static struct sk_buff *dsa_rcv_ll(struct sk_buff *skb, struct net_device *dev, new_header[2] = dsa_header[2] & ~0x10; new_header[3] = dsa_header[3]; - /* - * Move CFI bit from its place in the DSA header to - * its 802.1q-designated place. + /* Move CFI bit from its place in the DSA header to + * its 802.1Q-designated place. */ if (dsa_header[1] & 0x01) new_header[2] |= 0x10; - /* - * Update packet checksum if skb is CHECKSUM_COMPLETE. - */ + /* Update packet checksum if skb is CHECKSUM_COMPLETE. */ if (skb->ip_summed == CHECKSUM_COMPLETE) { __wsum c = skb->csum; c = csum_add(c, csum_partial(new_header + 2, 2, 0)); |