diff options
| author | David Hildenbrand <david@redhat.com> | 2020-05-15 12:14:02 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-06-04 21:36:52 +0200 |
| commit | fce8afd76e3a4d8c59c92f84f8027569fd7031d0 (patch) | |
| tree | 6e8a0d9ba7798b86e0f71b822948a29866361210 /include/uapi | |
| parent | virtio-mem: Try to unplug the complete online memory block first (diff) | |
| download | linux-fce8afd76e3a4d8c59c92f84f8027569fd7031d0.tar.xz linux-fce8afd76e3a4d8c59c92f84f8027569fd7031d0.zip | |
virtio-mem: Don't rely on implicit compiler padding for requests
The compiler will add padding after the last member, make that explicit.
The size of a request is always 24 bytes. The size of a response always
10 bytes. Add compile-time checks.
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Cc: teawater <teawaterz@linux.alibaba.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20200515101402.16597-1-david@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/virtio_mem.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/uapi/linux/virtio_mem.h b/include/uapi/linux/virtio_mem.h index e0a9dc7397c3..a455c488a995 100644 --- a/include/uapi/linux/virtio_mem.h +++ b/include/uapi/linux/virtio_mem.h @@ -103,16 +103,19 @@ struct virtio_mem_req_plug { __virtio64 addr; __virtio16 nb_blocks; + __virtio16 padding[3]; }; struct virtio_mem_req_unplug { __virtio64 addr; __virtio16 nb_blocks; + __virtio16 padding[3]; }; struct virtio_mem_req_state { __virtio64 addr; __virtio16 nb_blocks; + __virtio16 padding[3]; }; struct virtio_mem_req { |