1874 int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len)  in skb_store_bits()  argument
1886 		skb_copy_to_linear_data_offset(skb, offset, from, copy);  in skb_store_bits()
1890 		from += copy;  in skb_store_bits()
1908 			       from, copy);  in skb_store_bits()
1914 			from += copy;  in skb_store_bits()
1929 					   from, copy))  in skb_store_bits()
1934 			from += copy;  in skb_store_bits()
2395 	int from, to, merge, todo;  in skb_shift()  local
2402 	from = 0;  in skb_shift()
2404 	fragfrom = &skb_shinfo(skb)->frags[from];  in skb_shift()
2423 			fragfrom = &skb_shinfo(skb)->frags[from];  in skb_shift()
2433 		from++;  in skb_shift()
2438 	    (skb_shinfo(skb)->nr_frags - from) > (MAX_SKB_FRAGS - to))  in skb_shift()
2444 	while ((todo > 0) && (from < skb_shinfo(skb)->nr_frags)) {  in skb_shift()
2448 		fragfrom = &skb_shinfo(skb)->frags[from];  in skb_shift()
2454 			from++;  in skb_shift()
2485 	while (from < skb_shinfo(skb)->nr_frags)  in skb_shift()
2486 		skb_shinfo(skb)->frags[to++] = skb_shinfo(skb)->frags[from++];  in skb_shift()
2519 void skb_prepare_seq_read(struct sk_buff *skb, unsigned int from,  in skb_prepare_seq_read()  argument
2522 	st->lower_offset = from;  in skb_prepare_seq_read()
2658 unsigned int skb_find_text(struct sk_buff *skb, unsigned int from,  in skb_find_text()  argument
2667 	skb_prepare_seq_read(skb, from, to, TS_SKB_CB(state));  in skb_find_text()
2670 	return (ret <= to - from ? ret : UINT_MAX);  in skb_find_text()
2686 			int (*getfrag)(void *from, char *to, int offset,  in skb_append_datato_frags()  argument
2688 			void *from, int length)  in skb_append_datato_frags()
2707 		ret = getfrag(from, page_address(pfrag->page) + pfrag->offset,  in skb_append_datato_frags()
3436 bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from,  in skb_try_coalesce()  argument
3439 	int i, delta, len = from->len;  in skb_try_coalesce()
3447 		BUG_ON(skb_copy_bits(from, 0, skb_put(to, len), len));  in skb_try_coalesce()
3452 	if (skb_has_frag_list(to) || skb_has_frag_list(from))  in skb_try_coalesce()
3455 	if (skb_headlen(from) != 0) {  in skb_try_coalesce()
3460 		    skb_shinfo(from)->nr_frags >= MAX_SKB_FRAGS)  in skb_try_coalesce()
3463 		if (skb_head_is_locked(from))  in skb_try_coalesce()
3466 		delta = from->truesize - SKB_DATA_ALIGN(sizeof(struct sk_buff));  in skb_try_coalesce()
3468 		page = virt_to_head_page(from->head);  in skb_try_coalesce()
3469 		offset = from->data - (unsigned char *)page_address(page);  in skb_try_coalesce()
3472 				   page, offset, skb_headlen(from));  in skb_try_coalesce()
3476 		    skb_shinfo(from)->nr_frags > MAX_SKB_FRAGS)  in skb_try_coalesce()
3479 		delta = from->truesize - SKB_TRUESIZE(skb_end_offset(from));  in skb_try_coalesce()
3485 	       skb_shinfo(from)->frags,  in skb_try_coalesce()
3486 	       skb_shinfo(from)->nr_frags * sizeof(skb_frag_t));  in skb_try_coalesce()
3487 	skb_shinfo(to)->nr_frags += skb_shinfo(from)->nr_frags;  in skb_try_coalesce()
3489 	if (!skb_cloned(from))  in skb_try_coalesce()
3490 		skb_shinfo(from)->nr_frags = 0;  in skb_try_coalesce()
3495 	for (i = 0; i < skb_shinfo(from)->nr_frags; i++)  in skb_try_coalesce()
3496 		skb_frag_ref(from, i);  in skb_try_coalesce()