patch-2.4.4 linux/net/core/iovec.c

• Lines: 49
• Date: Thu Apr 12 12:11:39 2001
• Orig file: v2.4.3/linux/net/core/iovec.c
• Orig date: Fri Feb 9 11:29:44 2001

diff -u --recursive --new-file v2.4.3/linux/net/core/iovec.c linux/net/core/iovec.c
@@ -102,48 +102,6 @@
 	return err;
 }
 
-/* Copy and checkum skb to user iovec. Caller _must_ check that
-   skb will fit to this iovec.
-
-   Returns: 0       - success.
-            -EINVAL - checksum failure.
-	    -EFAULT - fault during copy. Beware, in this case iovec can be
-	              modified!
- */
-
-int copy_and_csum_toiovec(struct iovec *iov, struct sk_buff *skb, int hlen)
-{
-	unsigned int csum;
-	int chunk = skb->len - hlen;
-
-	/* Skip filled elements. Pretty silly, look at memcpy_toiovec, though 8) */
-	while (iov->iov_len == 0)
-		iov++;
-
-	if (iov->iov_len < chunk) {
-		if ((unsigned short)csum_fold(csum_partial(skb->h.raw, chunk+hlen, skb->csum)))
-			goto csum_error;
-		if (memcpy_toiovec(iov, skb->h.raw + hlen, chunk))
-			goto fault;
-	} else {
-		int err = 0;
-		csum = csum_partial(skb->h.raw, hlen, skb->csum);
-		csum = csum_and_copy_to_user(skb->h.raw+hlen, iov->iov_base,
-					     chunk, csum, &err);
-		if (err || ((unsigned short)csum_fold(csum)))
-			goto csum_error;
-		iov->iov_len -= chunk;
-		iov->iov_base += chunk;
-	}
-	return 0;
-
-csum_error:
-	return -EINVAL;
-
-fault:
-	return -EFAULT;
-}
-
 /*
  *	In kernel copy to iovec. Returns -EFAULT on error.
  *