linux-kernel - Re: [RESEND PATCH v5 3/5] drivers core: allow probe

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Date:   Thu, 25 Jun 2020 12:19:46 +0200
From:   Andrzej Hajda <a.hajda@...sung.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Jernej Skrabec <jernej.skrabec@...l.net>,
        Jonas Karlman <jonas@...boo.se>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:DRM DRIVERS" <dri-devel@...ts.freedesktop.org>,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        Neil Armstrong <narmstrong@...libre.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Mark Brown <broonie@...nel.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Robin Murphy <robin.murphy@....com>,
        linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [RESEND PATCH v5 3/5] drivers core: allow probe_err accept
 integer and pointer types


On 25.06.2020 10:41, Andy Shevchenko wrote:
> On Wed, Jun 24, 2020 at 10:40 PM Andrzej Hajda <a.hajda@...sung.com> wrote:
>> On 24.06.2020 17:16, Robin Murphy wrote:
> ...
>
>> I have proposed such thing in my previous iteration[1], except it was
>> macro because of variadic arguments.
> You may have a function with variadic arguments. Macros are beasts and
> make in some cases more harm than help.


What harm it can do in this particular case?

With macro we have simple straightforward one-liner, with quite good 
type-checking.

Maybe I am wrong, but I suspect creation of variadic function would 
require much more coding.


Regards

Andrzej