linux-kernel - Re: [PATCH] serial/sifive: select SERIAL

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Date:   Tue, 10 Sep 2019 16:36:30 +0200
From:   Christoph Hellwig <hch@....de>
To:     Andreas Schwab <schwab@...e.de>
Cc:     Christoph Hellwig <hch@....de>, gregkh@...uxfoundation.org,
        jslaby@...e.com, paul.walmsley@...ive.com,
        linux-serial@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] serial/sifive: select SERIAL_EARLYCON

On Tue, Sep 10, 2019 at 10:18:15AM +0200, Andreas Schwab wrote:
> > How so?  Wіth OF and a stdout path you just set earlycon on the
> > command line without any arguments and it will be found.
> 
> Doesn't work for me.
> 
> [    0.000000] Malformed early option 'earlycon'

That functionality is implemented by param_setup_earlycon and
early_init_dt_scan_chosen_stdout.  Check why those aren't built into
your kernel.