On Thu, 20 Mar 2025 18:26:54 +0100
Maximilian Immanuel Brandtner <ma...@linux.ibm.com> wrote:
Let my try to do some nitpicking here. First on the subject. I would go
with something more specific like "fix order of fields cols and rows",
especially now that we have figured out the byte order handling is absent
as well.
> According to section 5.3.6.2 of the virtio spec a control buffer with
I would refrain form referencing section from the spec only by its
number without also telling which incarnation of the spec you mean. I
don't think those numbers are set in stone.
> the event VIRITO_CONSOLE_RESIZE is followed by a virtio_console_resize
> struct containing 2 little endian 16bit integerts cols,rows.
s/integerts/integers/
I think technically it is still the same buffer. I would opt for struct
virtio_console_control is followed by struct virtio_console_resize.
> The kernel
> implementation assums native endianness (which results in mangled
> values on big endian architectures)(a seperate patch by Halil Pasic
> will deal with that issue) and swaps the ordering of columns and rows.
I would simply omit the reference to the other patch. I understand that
you introduced this because your patch does not deliver everything that
the short description promises.
I didn't realize that addressing the byte order stuff would cause
a merge conflict, but it does. So maybe it would make sense to rebase
your fix on top of mine and send it as a series titled.
"Make resize control event handling compliant with spec". Just an idea.
> This patch changes the ordering of rows and columns to columns then
> rows.
>
> Fixes: 8345adbf96fc1 ("virtio: console: Accept console size along with
> resize control message") Signed-off-by: Maximilian Immanuel Brandtner
> <ma...@linux.ibm.com> Cc: sta...@vger.kernel.org # v2.6.35+
> ---
> drivers/char/virtio_console.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/char/virtio_console.c
> b/drivers/char/virtio_console.c index 24442485e73e..9668e89873cf 100644
> --- a/drivers/char/virtio_console.c
> +++ b/drivers/char/virtio_console.c
> @@ -1579,8 +1579,8 @@ static void handle_control_message(struct
> virtio_device *vdev, break;
> case VIRTIO_CONSOLE_RESIZE: {
> struct {
> - __u16 rows;
> __u16 cols;
> + __u16 rows;
> } size;
>
> if (!is_console_port(port))
