linux-kernel - Re: [PATCH 0/7] Silence even more W=2 warnings

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Date:	Thu, 25 Sep 2014 09:45:29 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Cc:	Borislav Petkov <bp@...en8.de>,
	"Rustad, Mark D" <mark.d.rustad@...el.com>,
	"sparse@...isli.org" <sparse@...isli.org>,
	"linux-sparse@...r.kernel.org" <linux-sparse@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/7] Silence even more W=2 warnings

On Mon, Sep 22, 2014 at 11:21 PM, Jeff Kirsher
<jeffrey.t.kirsher@...el.com> wrote:
>> > Why grep through 100,000 warnings, when we should be fixing the code to
>> > prevent 100,000 warnings.  Not saying that the MACRO is the best
>> > solution, it is just a solution, in hopes that it spurs discussions like
>> > this on how to properly fix the warnings.  Not a discussion on how to
>> > grep through the warnings and do nothing.
>>
>> There's only one thing I don't understand: why is so bad to grep through
>> the warnings? I mean, sure, fixing them *without* jumping through hoops
>> to do so is the optimal thing. But what's wrong with grepping through
>> them?
>
> Nothing is wrong with grepping for an error, especially when you know
> the error your grepping for.  But then again, why grep when it can be
> fixed to begin with?  The fact that there are over 100,000
> warnings/errors to begin with is somewhat disconcerting.  It makes me
> wonder whether it was due to coding laziness.

Instead of grepping, you can feed the build log to linux-log-summary.
Or when changing a driver, feed the before and after build logs to
linux-log-diff. That way you won't miss the single new warning you've
just introduced.

https://github.com/geertu/linux-scripts

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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