780 	__u8			ip_summed:2;  member
3218 	if (skb->ip_summed == CHECKSUM_NONE) {  in skb_add_data()
3293 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in __skb_postpull_rcsum()
3296 	else if (skb->ip_summed == CHECKSUM_PARTIAL &&  in __skb_postpull_rcsum()
3298 		skb->ip_summed = CHECKSUM_NONE;  in __skb_postpull_rcsum()
3321 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in __skb_postpush_rcsum()
3381 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in __skb_trim_rcsum()
3382 		skb->ip_summed = CHECKSUM_NONE;  in __skb_trim_rcsum()
3389 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in __skb_grow_rcsum()
3390 		skb->ip_summed = CHECKSUM_NONE;  in __skb_grow_rcsum()
3843 	return ((skb->ip_summed == CHECKSUM_UNNECESSARY) ||  in skb_csum_unnecessary()
3845 		(skb->ip_summed == CHECKSUM_PARTIAL &&  in skb_csum_unnecessary()
3873 	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {  in __skb_decr_checksum_unnecessary()
3875 			skb->ip_summed = CHECKSUM_NONE;  in __skb_decr_checksum_unnecessary()
3883 	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {  in __skb_incr_checksum_unnecessary()
3886 	} else if (skb->ip_summed == CHECKSUM_NONE) {  in __skb_incr_checksum_unnecessary()
3887 		skb->ip_summed = CHECKSUM_UNNECESSARY;  in __skb_incr_checksum_unnecessary()
3923 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in skb_checksum_complete_unset()
3924 		skb->ip_summed = CHECKSUM_NONE;  in skb_checksum_complete_unset()
3940 	if (skb->ip_summed == CHECKSUM_COMPLETE) {  in __skb_checksum_validate_complete()
4004 	return (skb->ip_summed == CHECKSUM_NONE && skb->csum_valid);  in __skb_checksum_convert_check()
4010 	skb->ip_summed = CHECKSUM_COMPLETE;  in __skb_checksum_convert()
4022 	skb->ip_summed = CHECKSUM_PARTIAL;  in skb_remcsum_adjust_partial()
4042 	 if (unlikely(skb->ip_summed != CHECKSUM_COMPLETE)) {  in skb_remcsum_process()
4449 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in skb_forward_csum()
4450 		skb->ip_summed = CHECKSUM_NONE;  in skb_forward_csum()
4464 	BUG_ON(skb->ip_summed != CHECKSUM_NONE);  in skb_checksum_none_assert()