* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
+#include <linux/compiler.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
#include <linux/types.h>
#include <linux/pagemap.h>
#include <linux/udp.h>
/**
- * skb_read_bits - copy some data bits from skb to internal buffer
+ * xdr_skb_read_bits - copy some data bits from skb to internal buffer
* @desc: sk_buff copy helper
* @to: copy destination
* @len: number of bytes to copy
* Possibly called several times to iterate over an sk_buff and copy
* data out of it.
*/
-static size_t skb_read_bits(skb_reader_t *desc, void *to, size_t len)
+size_t xdr_skb_read_bits(struct xdr_skb_reader *desc, void *to, size_t len)
{
if (len > desc->count)
len = desc->count;
- if (skb_copy_bits(desc->skb, desc->offset, to, len))
+ if (unlikely(skb_copy_bits(desc->skb, desc->offset, to, len)))
return 0;
desc->count -= len;
desc->offset += len;
}
/**
- * skb_read_and_csum_bits - copy and checksum from skb to buffer
+ * xdr_skb_read_and_csum_bits - copy and checksum from skb to buffer
* @desc: sk_buff copy helper
* @to: copy destination
* @len: number of bytes to copy
*
* Same as skb_read_bits, but calculate a checksum at the same time.
*/
-static size_t skb_read_and_csum_bits(skb_reader_t *desc, void *to, size_t len)
+static size_t xdr_skb_read_and_csum_bits(struct xdr_skb_reader *desc, void *to, size_t len)
{
- unsigned int csum2, pos;
+ unsigned int pos;
+ __wsum csum2;
if (len > desc->count)
len = desc->count;
* @copy_actor: virtual method for copying data
*
*/
-ssize_t xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, skb_reader_t *desc, skb_read_actor_t copy_actor)
+ssize_t xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, struct xdr_skb_reader *desc, xdr_skb_read_actor copy_actor)
{
struct page **ppage = xdr->pages;
unsigned int len, pglen = xdr->page_len;
*/
int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
{
- skb_reader_t desc;
+ struct xdr_skb_reader desc;
desc.skb = skb;
desc.offset = sizeof(struct udphdr);
goto no_checksum;
desc.csum = csum_partial(skb->data, desc.offset, skb->csum);
- if (xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_and_csum_bits) < 0)
+ if (xdr_partial_copy_from_skb(xdr, 0, &desc, xdr_skb_read_and_csum_bits) < 0)
return -1;
if (desc.offset != skb->len) {
- unsigned int csum2;
+ __wsum csum2;
csum2 = skb_checksum(skb, desc.offset, skb->len - desc.offset, 0);
desc.csum = csum_block_add(desc.csum, csum2, desc.offset);
}
if (desc.count)
return -1;
- if ((unsigned short)csum_fold(desc.csum))
+ if (csum_fold(desc.csum))
return -1;
+ if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
+ netdev_rx_csum_fault(skb->dev);
return 0;
no_checksum:
- if (xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_bits) < 0)
+ if (xdr_partial_copy_from_skb(xdr, 0, &desc, xdr_skb_read_bits) < 0)
return -1;
if (desc.count)
return -1;