Re: [PATCH printk v2 22/38] serial: kgdboc: document console_lock usage

Doug Anderson
2022-10-25T01:18:16Z

Hi,

On Wed, Oct 19, 2022 at 7:56 AM John Ogness <john.ogness@linutronix.de> wrote:
>
> kgdboc_earlycon_init() uses the console_lock to ensure that no consoles
> are unregistered until the kgdboc_earlycon is setup. This is necessary
> because the trapping of the exit() callback assumes that the exit()
> callback is not called before the trap is setup.
>
> Explicitly document this non-typical console_lock usage.
>
> Signed-off-by: John Ogness <john.ogness@linutronix.de>
> ---
> drivers/tty/serial/kgdboc.c | 8 ++++++++
> 1 file changed, 8 insertions(+)

Reviewed-by: Douglas Anderson <dianders@chromium.org>