diff options
Diffstat (limited to 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index c11a44ea1bf4..79ef8209bbb7 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -361,6 +361,7 @@ typedef unsigned char *sk_buff_data_t; * ports. * @wifi_acked_valid: wifi_acked was set * @wifi_acked: whether frame was acked on wifi or not + * @no_fcs: Request NIC to treat last 4 bytes as Ethernet FCS * @dma_cookie: a cookie to one of several possible DMA operations * done by skb DMA functions * @secmark: security marking @@ -459,7 +460,8 @@ struct sk_buff { __u8 l4_rxhash:1; __u8 wifi_acked_valid:1; __u8 wifi_acked:1; - /* 10/12 bit hole (depending on ndisc_nodetype presence) */ + __u8 no_fcs:1; + /* 9/11 bit hole (depending on ndisc_nodetype presence) */ kmemcheck_bitfield_end(flags2); #ifdef CONFIG_NET_DMA @@ -1484,6 +1486,16 @@ static inline void skb_set_mac_header(struct sk_buff *skb, const int offset) } #endif /* NET_SKBUFF_DATA_USES_OFFSET */ +static inline void skb_mac_header_rebuild(struct sk_buff *skb) +{ + if (skb_mac_header_was_set(skb)) { + const unsigned char *old_mac = skb_mac_header(skb); + + skb_set_mac_header(skb, -skb->mac_len); + memmove(skb_mac_header(skb), old_mac, skb->mac_len); + } +} + static inline int skb_checksum_start_offset(const struct sk_buff *skb) { return skb->csum_start - skb_headroom(skb); |
