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Re: [PATCH] clk: vt8500: don't return possibly uninitialized data

From Arnd Bergmann <arnd@arndb.de>
Newsgroups linux.kernel
Subject Re: [PATCH] clk: vt8500: don't return possibly uninitialized data
Date 2016-02-02 21:10 +0100
Message-ID <qXPqV-8iU-1@gated-at.bofh.it> (permalink)
References <qXjU6-19m-11@gated-at.bofh.it> <qXIIO-32i-5@gated-at.bofh.it> <qXP7A-7Ux-3@gated-at.bofh.it>
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On Tuesday 02 February 2016 11:47:13 Stephen Boyd wrote:
> On 02/02, Arnd Bergmann wrote:
> > On Monday 01 February 2016 17:15:45 Stephen Boyd wrote:
> > 
> > I see what you mean now. I checked different gcc versions, and with my patch I get
> > the warnings for 4.6 through 4.9, but not for 5.x.
> > 
> > In general, I tried to only address warnings I still see with newer gcc version,
> > as they are better about false positives. Do you think it's ok to take the
> > patch as is then? Otherwise we probably have to add fake initializations which
> > would shut up the warnings but not help with the code quality.
> > 
> 
> Sure. I was hoping something could be done to restructure the
> code to make it easier for the compiler to figure out the
> variables would be initialized. But you're the one who's sending
> the patch to silence them so if you're satisfied I'm not going to
> spend too much time on this.
> 

Ok, thanks!

Note that this one patch was for a real bug involving undefined
behavior that is now fixed.

	Arnd

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Thread

[PATCH] clk: vt8500: don't return possibly uninitialized data Arnd Bergmann <arnd@arndb.de> - 2016-02-01 11:30 +0100
  Re: [PATCH] clk: vt8500: don't return possibly uninitialized data Stephen Boyd <sboyd@codeaurora.org> - 2016-02-02 02:20 +0100
    Re: [PATCH] clk: vt8500: don't return possibly uninitialized data Arnd Bergmann <arnd@arndb.de> - 2016-02-02 14:00 +0100
      Re: [PATCH] clk: vt8500: don't return possibly uninitialized data Stephen Boyd <sboyd@codeaurora.org> - 2016-02-02 20:50 +0100
        Re: [PATCH] clk: vt8500: don't return possibly uninitialized data Arnd Bergmann <arnd@arndb.de> - 2016-02-02 21:10 +0100
          Re: [PATCH] clk: vt8500: don't return possibly uninitialized data Roman Volkov <v1ron@mail.ru> - 2016-02-03 09:40 +0100
            Re: [PATCH] clk: vt8500: don't return possibly uninitialized data Arnd Bergmann <arnd@arndb.de> - 2016-02-03 10:20 +0100

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