[PULL 37/56] net/vhost-vdpa: Include missing 'qemu/iov.h' header

vhost-vdpa.c uses methods declared in the "qemu/iov." header.
Include it otherwise we get when refactoring unrelated headers:

  ../net/vhost-vdpa.c: In function ‘vhost_vdpa_net_load_cmd’:
  ../net/vhost-vdpa.c:714:24: error: implicit declaration of function ‘iov_size’
    714 |     size_t data_size = iov_size(data_sg, data_num), cmd_size;
        |                        ^~~~~~~~
  ../net/vhost-vdpa.c:714:24: error: nested extern declaration of ‘iov_size’
  ../net/vhost-vdpa.c:742:5: error: implicit declaration of function ‘iov_from_buf’
    742 |     iov_from_buf(out_cursor, 1, 0, &ctrl, sizeof(ctrl));
        |     ^~~~~~~~~~~~
  ../net/vhost-vdpa.c:742:5: error: nested extern declaration of ‘iov_from_buf’
  ../net/vhost-vdpa.c:744:5: error: implicit declaration of function ‘iov_to_buf’
    744 |     iov_to_buf(data_sg, data_num, 0,
        |     ^~~~~~~~~~
  ../net/vhost-vdpa.c:744:5: error: nested extern declaration of ‘iov_to_buf’
  ../net/vhost-vdpa.c:748:5: error: implicit declaration of function ‘iov_copy’
    748 |     iov_copy(&out, 1, out_cursor, 1, 0, cmd_size);
        |     ^~~~~~~~

Fixes: bd907ae4b00 ("vdpa: manual forward CVQ buffers")
Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
Acked-by: Michael S. Tsirkin <[email protected]>
Reviewed-by: Marc-André Lureau <[email protected]>
Message-Id: <[email protected]>
---
 net/vhost-vdpa.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index c526c2b2dc0..1052361a4ab 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -17,6 +17,7 @@
 #include "hw/virtio/vhost-vdpa.h"
 #include "qemu/config-file.h"
 #include "qemu/error-report.h"
+#include "qemu/iov.h"
 #include "qemu/log.h"
 #include "qemu/memalign.h"
 #include "qemu/option.h"
-- 
2.53.0