Lines Matching +full:compute +full:- +full:cb

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
8 /* Keeps track of mac header offset relative to skb->head.
10  * For non-tunnel skb it points to skb_mac_header() and for
24 #define SKB_GSO_CB(skb) ((struct skb_gso_cb *)((skb)->cb + SKB_GSO_CB_OFFSET))
28 	return (skb_mac_header(inner_skb) - inner_skb->head) -  in skb_tnl_header_len()
29 		SKB_GSO_CB(inner_skb)->mac_offset;  in skb_tnl_header_len()
43 	SKB_GSO_CB(skb)->mac_offset += (new_headroom - headroom);  in gso_pskb_expand_head()
50 	if (skb->remcsum_offload)  in gso_reset_checksum()
53 	SKB_GSO_CB(skb)->csum = res;  in gso_reset_checksum()
54 	SKB_GSO_CB(skb)->csum_start = skb_checksum_start(skb) - skb->head;  in gso_reset_checksum()
57 /* Compute the checksum for a gso segment. First compute the checksum value
58  * from the start of transport header to SKB_GSO_CB(skb)->csum_start, and
59  * then add in skb->csum (checksum from csum_start to end of packet).
60  * skb->csum and csum_start are then updated to reflect the checksum of the
61  * resultant packet starting from the transport header-- the resultant checksum
68 	int plen = (skb->head + SKB_GSO_CB(skb)->csum_start) - csum_start;  in gso_make_checksum()
69 	__wsum partial = SKB_GSO_CB(skb)->csum;  in gso_make_checksum()
71 	SKB_GSO_CB(skb)->csum = res;  in gso_make_checksum()
72 	SKB_GSO_CB(skb)->csum_start = csum_start - skb->head;  in gso_make_checksum()
100 	skb->protocol = protocol;  in skb_gso_error_unwind()
101 	skb->encapsulation = 1;  in skb_gso_error_unwind()
104 	skb->mac_header = mac_offset;  in skb_gso_error_unwind()
105 	skb->network_header = skb->mac_header + mac_len;  in skb_gso_error_unwind()
106 	skb->mac_len = mac_len;  in skb_gso_error_unwind()