can: virtio: Fix comment in UAPI header

When compile testing the UAPI headers with clang, there is an warning turned
error for using a C++ style ('//') comment, which is explicitly forbidden for
UAPI headers.

  In file included from <built-in>:1:
  ./usr/include/linux/virtio_can.h:29:35: error: // comments are not allowed in this language [-Werror,-Wcomment]
     29 | #define VIRTIO_CAN_MAX_DLEN    64 // this is like CANFD_MAX_DLEN
        |                                   ^
  1 error generated.

Switch to a standard C style comment.

Fixes: 2b6b4bb7d96f ("can: virtio: Add virtio CAN driver")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20260604-virtio_can-fix-uapi-comment-v1-1-199fa96ec5f0@kernel.org>

diff --git a/include/uapi/linux/virtio_can.h b/include/uapi/linux/virtio_can.h
index 08d7e3e78776e2a65f0d455ff3f3e048ffd19232..e054d509924148e42f21366ce27450226b74463e 100644 (file)
--- a/include/uapi/linux/virtio_can.h
+++ b/include/uapi/linux/virtio_can.h
@@ -26,7 +26,7 @@
 #define VIRTIO_CAN_FLAGS_FD             0x4000
 #define VIRTIO_CAN_FLAGS_RTR            0x2000
 
-#define VIRTIO_CAN_MAX_DLEN    64 // this is like CANFD_MAX_DLEN
+#define VIRTIO_CAN_MAX_DLEN    64 /* this is like CANFD_MAX_DLEN */
 
 struct virtio_can_config {
 #define VIRTIO_CAN_S_CTRL_BUSOFF (1u << 0) /* Controller BusOff */