Re: The console log is doubled if earlycon is enabled

[Andy Shevchenko]

On Fri, Nov 27, 2015 at 12:21 PM, Masahiro Yamada
<yamada.masahiro@xxxxxxxxxxxxx> wrote:
> Hi,
>
>
> If I add "earlycon" to the kernel parameter, the log message
> on the earlycon is also displayed to the regular console.
> In other words, the same log messages are displayed twice.
>
> I noticed this problem on v4.4-rc1.
> It has not been fixed in the mainline yet, I think.
>
> Anybody who has a clue?
> (I have not done git-bisect yet.)

Does adding the following line in
drivers/tty/serial/8250/8250_early.c:: early_serial8250_setup() fix
the issue?

device->con->flags &= ~CON_PRINTBUFFER;

-- 
With Best Regards,
Andy Shevchenko
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