937 	__u8			ip_summed:2;
3687 	if (skb->ip_summed == CHECKSUM_NONE) {  in skb_add_data()
3762 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in __skb_postpull_rcsum()
3765 	else if (skb->ip_summed == CHECKSUM_PARTIAL &&  in __skb_postpull_rcsum()
3767 		skb->ip_summed = CHECKSUM_NONE;  in __skb_postpull_rcsum()
3783 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in skb_postpull_rcsum()
3786 	else if (skb->ip_summed == CHECKSUM_PARTIAL &&  in skb_postpull_rcsum()
3788 		skb->ip_summed = CHECKSUM_NONE;  in skb_postpull_rcsum()
3795 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in __skb_postpush_rcsum()
3855 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in __skb_trim_rcsum()
3856 		skb->ip_summed = CHECKSUM_NONE;  in __skb_trim_rcsum()
3863 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in __skb_grow_rcsum()
3864 		skb->ip_summed = CHECKSUM_NONE;  in __skb_grow_rcsum()
4374 	return ((skb->ip_summed == CHECKSUM_UNNECESSARY) ||  in skb_csum_unnecessary()
4376 		(skb->ip_summed == CHECKSUM_PARTIAL &&  in skb_csum_unnecessary()
4404 	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {  in __skb_decr_checksum_unnecessary()
4406 			skb->ip_summed = CHECKSUM_NONE;  in __skb_decr_checksum_unnecessary()
4414 	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {  in __skb_incr_checksum_unnecessary()
4417 	} else if (skb->ip_summed == CHECKSUM_NONE) {  in __skb_incr_checksum_unnecessary()
4418 		skb->ip_summed = CHECKSUM_UNNECESSARY;  in __skb_incr_checksum_unnecessary()
4425 	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {  in __skb_reset_checksum_unnecessary()
4426 		skb->ip_summed = CHECKSUM_NONE;  in __skb_reset_checksum_unnecessary()
4462 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in skb_checksum_complete_unset()
4463 		skb->ip_summed = CHECKSUM_NONE;  in skb_checksum_complete_unset()
4479 	if (skb->ip_summed == CHECKSUM_COMPLETE) {  in __skb_checksum_validate_complete()
4543 	return (skb->ip_summed == CHECKSUM_NONE && skb->csum_valid);  in __skb_checksum_convert_check()
4549 	skb->ip_summed = CHECKSUM_COMPLETE;  in __skb_checksum_convert()
4561 	skb->ip_summed = CHECKSUM_PARTIAL;  in skb_remcsum_adjust_partial()
4581 	if (unlikely(skb->ip_summed != CHECKSUM_COMPLETE)) {  in skb_remcsum_process()
4930 	if (skb->ip_summed == CHECKSUM_COMPLETE)  in skb_forward_csum()
4931 		skb->ip_summed = CHECKSUM_NONE;  in skb_forward_csum()
4944 	DEBUG_NET_WARN_ON_ONCE(skb->ip_summed != CHECKSUM_NONE);  in skb_checksum_none_assert()
5033 	skb->ip_summed = CHECKSUM_NONE;  in skb_reset_csum_not_inet()