linux-kernel - Re: [PATCH v2 3/7] x86/boot: Split out parse_serial

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Message-ID: <20190328140329.GK22720@zn.tnic>
Date:   Thu, 28 Mar 2019 15:03:29 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Joe Perches <joe@...ches.com>, "H. Peter Anvin" <hpa@...or.com>,
        x86@...nel.org, Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/7] x86/boot: Split out parse_serial_port() helper
 for earlyprintk

On Thu, Mar 28, 2019 at 03:50:15PM +0200, Andy Shevchenko wrote:
> Can, but with code uglifying to workaround kstrtox() restrictions.
> simple_strtox() _just works_ as expected.

simple_strtox() also has its problems.

> Requires buffer copying, finding digits there, making a proper termination. And

It needs a single kstrtoull() call to parse the port. And we have
kstrtoull() available in the compressed stage so pls do the conversion
ontop.

Thx.

-- 
Regards/Gruss,
    Boris.

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