tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git config-endian
head:   6aef2378a564fea8e69c0419d94dc3ad9b4b7a99
commit: 8edd653e47e7e5ef253699fb1d0bb587941434d9 [22/36] virtio_9p: correct tags for config space fields
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All errors (new ones prefixed by >>):

   In file included from <command-line>:32:

quoted

./usr/include/linux/virtio_9p.h:39:2: error: unknown type name '__virtio16'

      39 |  __virtio16 tag_len;
         |  ^~~~~~~~~~

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