34 typedef size_t (*xdr_skb_read_actor)(struct xdr_skb_reader *desc, void *to,
47 xdr_skb_read_bits(struct xdr_skb_reader *desc, void *to, size_t len)  in xdr_skb_read_bits()  argument
49 	if (len > desc->count)  in xdr_skb_read_bits()
50 		len = desc->count;  in xdr_skb_read_bits()
51 	if (unlikely(skb_copy_bits(desc->skb, desc->offset, to, len)))  in xdr_skb_read_bits()
53 	desc->count -= len;  in xdr_skb_read_bits()
54 	desc->offset += len;  in xdr_skb_read_bits()
66 static size_t xdr_skb_read_and_csum_bits(struct xdr_skb_reader *desc, void *to, size_t len)  in xdr_skb_read_and_csum_bits()  argument
71 	if (len > desc->count)  in xdr_skb_read_and_csum_bits()
72 		len = desc->count;  in xdr_skb_read_and_csum_bits()
73 	pos = desc->offset;  in xdr_skb_read_and_csum_bits()
74 	csum2 = skb_copy_and_csum_bits(desc->skb, pos, to, len);  in xdr_skb_read_and_csum_bits()
75 	desc->csum = csum_block_add(desc->csum, csum2, pos);  in xdr_skb_read_and_csum_bits()
76 	desc->count -= len;  in xdr_skb_read_and_csum_bits()
77 	desc->offset += len;  in xdr_skb_read_and_csum_bits()
90 xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, struct xdr_skb_reader *desc, xdr_…  in xdr_partial_copy_from_skb()  argument
100 		ret = copy_actor(desc, (char *)xdr->head[0].iov_base + base, len);  in xdr_partial_copy_from_skb()
102 		if (ret != len || !desc->count)  in xdr_partial_copy_from_skb()
140 			ret = copy_actor(desc, kaddr + base, len);  in xdr_partial_copy_from_skb()
145 			ret = copy_actor(desc, kaddr, len);  in xdr_partial_copy_from_skb()
150 		if (ret != len || !desc->count)  in xdr_partial_copy_from_skb()
157 		copied += copy_actor(desc, (char *)xdr->tail[0].iov_base + base, len - base);  in xdr_partial_copy_from_skb()
172 	struct xdr_skb_reader	desc;  in csum_partial_copy_to_xdr()  local
174 	desc.skb = skb;  in csum_partial_copy_to_xdr()
175 	desc.offset = 0;  in csum_partial_copy_to_xdr()
176 	desc.count = skb->len - desc.offset;  in csum_partial_copy_to_xdr()
181 	desc.csum = csum_partial(skb->data, desc.offset, skb->csum);  in csum_partial_copy_to_xdr()
182 	if (xdr_partial_copy_from_skb(xdr, 0, &desc, xdr_skb_read_and_csum_bits) < 0)  in csum_partial_copy_to_xdr()
184 	if (desc.offset != skb->len) {  in csum_partial_copy_to_xdr()
186 		csum2 = skb_checksum(skb, desc.offset, skb->len - desc.offset, 0);  in csum_partial_copy_to_xdr()
187 		desc.csum = csum_block_add(desc.csum, csum2, desc.offset);  in csum_partial_copy_to_xdr()
189 	if (desc.count)  in csum_partial_copy_to_xdr()
191 	if (csum_fold(desc.csum))  in csum_partial_copy_to_xdr()
198 	if (xdr_partial_copy_from_skb(xdr, 0, &desc, xdr_skb_read_bits) < 0)  in csum_partial_copy_to_xdr()
200 	if (desc.count)  in csum_partial_copy_to_xdr()