linux-kernel - Re: [PATCH v3] extcon: palmas: hide error messages if gpio returns -EPROBE

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Date:   Mon, 17 Feb 2020 21:19:11 +0100
From:   Ladislav Michl <ladis@...ux-mips.org>
To:     "H. Nikolaus Schaller" <hns@...delico.com>
Cc:     MyungJoo Ham <myungjoo.ham@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        linux-kernel@...r.kernel.org, letux-kernel@...nphoenux.org,
        kernel@...a-handheld.com, linux-omap@...r.kernel.org
Subject: Re: [PATCH v3] extcon: palmas: hide error messages if gpio returns
 -EPROBE_DEFER

Hi Nikolaus,

On Mon, Feb 17, 2020 at 08:33:52PM +0100, H. Nikolaus Schaller wrote:
> Hi Ladis,
> 
> > Am 17.02.2020 um 20:07 schrieb Ladislav Michl <ladis@...ux-mips.org>:
> > Linux kernel prints so many lines on bootup and only few of them are
> > valuable. Lets improve it by printing error value to give a clue
> > why it failed.
> 
> Hm. The upstream code does already print the error. This feature is not removed.
> But it is also printing an error in the EPROBE_DEFER case as well, where it is
> not needed or not an error.

It seems you missed I'm printing also error _value_. The rest of discussion
would need disassembly and I'll do it once I'll be waiting for yet another
long run recompile.

	ladis