817 	__u8			ip_summed:2;  member
3322 	if (skb->ip_summed == CHECKSUM_NONE) {  in skb_add_data()
3397 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in __skb_postpull_rcsum()
3400 	else if (skb->ip_summed == CHECKSUM_PARTIAL &&  in __skb_postpull_rcsum()
3402 		skb->ip_summed = CHECKSUM_NONE;  in __skb_postpull_rcsum()
3425 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in __skb_postpush_rcsum()
3485 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in __skb_trim_rcsum()
3486 		skb->ip_summed = CHECKSUM_NONE;  in __skb_trim_rcsum()
3493 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in __skb_grow_rcsum()
3494 		skb->ip_summed = CHECKSUM_NONE;  in __skb_grow_rcsum()
3953 	return ((skb->ip_summed == CHECKSUM_UNNECESSARY) ||  in skb_csum_unnecessary()
3955 		(skb->ip_summed == CHECKSUM_PARTIAL &&  in skb_csum_unnecessary()
3983 	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {  in __skb_decr_checksum_unnecessary()
3985 			skb->ip_summed = CHECKSUM_NONE;  in __skb_decr_checksum_unnecessary()
3993 	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {  in __skb_incr_checksum_unnecessary()
3996 	} else if (skb->ip_summed == CHECKSUM_NONE) {  in __skb_incr_checksum_unnecessary()
3997 		skb->ip_summed = CHECKSUM_UNNECESSARY;  in __skb_incr_checksum_unnecessary()
4004 	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {  in __skb_reset_checksum_unnecessary()
4005 		skb->ip_summed = CHECKSUM_NONE;  in __skb_reset_checksum_unnecessary()
4041 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in skb_checksum_complete_unset()
4042 		skb->ip_summed = CHECKSUM_NONE;  in skb_checksum_complete_unset()
4058 	if (skb->ip_summed == CHECKSUM_COMPLETE) {  in __skb_checksum_validate_complete()
4122 	return (skb->ip_summed == CHECKSUM_NONE && skb->csum_valid);  in __skb_checksum_convert_check()
4128 	skb->ip_summed = CHECKSUM_COMPLETE;  in __skb_checksum_convert()
4140 	skb->ip_summed = CHECKSUM_PARTIAL;  in skb_remcsum_adjust_partial()
4160 	 if (unlikely(skb->ip_summed != CHECKSUM_COMPLETE)) {  in skb_remcsum_process()
4576 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in skb_forward_csum()
4577 		skb->ip_summed = CHECKSUM_NONE;  in skb_forward_csum()
4591 	BUG_ON(skb->ip_summed != CHECKSUM_NONE);  in skb_checksum_none_assert()