vhost-user: use guest buffer directly in vu_handle_tx()

Check the buffer address is correctly in the mmap'ed memory.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>

1 files changed, 0 insertions, 39 deletions

diff --git a/iov.c b/iov.c
index 52a7c01..3f9e229 100644
--- a/iov.c
+++ b/iov.c
@@ -156,42 +156,3 @@ size_t iov_size(const struct iovec *iov, size_t iov_cnt)
 
 	return len;
 }
-
-/**
- * iov_copy - Copy data from one scatter/gather I/O vector (struct iovec) to
- *            another.
- *
- * @dst_iov:      Pointer to the destination array of struct iovec describing
- *                the scatter/gather I/O vector to copy to.
- * @dst_iov_cnt:  Number of elements in the destination iov array.
- * @iov:          Pointer to the source array of struct iovec describing
- *                the scatter/gather I/O vector to copy from.
- * @iov_cnt:      Number of elements in the source iov array.
- * @offset:       Offset within the source iov from where copying should start.
- * @bytes:        Total number of bytes to copy from iov to dst_iov.
- *
- * Returns:       The number of elements successfully copied to the destination
- *                iov array.
- */
-/* cppcheck-suppress unusedFunction */
-unsigned iov_copy(struct iovec *dst_iov, size_t dst_iov_cnt,
-		  const struct iovec *iov, size_t iov_cnt,
-		  size_t offset, size_t bytes)
-{
-	unsigned int i, j;
-
-	i = iov_skip_bytes(iov, iov_cnt, offset, &offset);
-
-	/* copying data */
-	for (j = 0; i < iov_cnt && j < dst_iov_cnt && bytes; i++) {
-		size_t len = MIN(bytes, iov[i].iov_len - offset);
-
-		dst_iov[j].iov_base = (char *)iov[i].iov_base + offset;
-		dst_iov[j].iov_len = len;
-		j++;
-		bytes -= len;
-		offset = 0;
-	}
-
-	return j;
-}