Re: [PATCH] tty: serial: meson_uart: Init port lock early

[Marc Zyngier]

On 2020-07-05 11:07, Andy Shevchenko wrote:
> On Sun, Jul 5, 2020 at 12:32 PM Marc Zyngier <maz@xxxxxxxxxx> wrote:
> > The meson UART driver triggers a lockdep splat at boot time, due
> > to the new expectation that the driver has to initialize the
> > per-port spinlock itself.
> >
> > It remains unclear why a double initialization of the port
> > spinlock is a desirable outcome, but in the meantime let's
> > fix the splat.
>
> Thanks!
>
> Can you test patch from [1] if it helps and doesn't break anything in 
> your case?
>
> [1]:
> https://lore.kernel.org/linux-serial/20200217114016.49856-1-andriy.shevchenko@xxxxxxxxxxxxxxx/T/#m9255e2a7474b160e66c7060fca5323ca3df49cfd

On its own, this patch doesn't seem to cure the issue (and it
adds a compile-time warning due to unused flags).

Or did you mean to test it in complement of my patch?

        M.
--
Jazz is not dead. It just smells funny...