From: Jeff Kirsher <jeffrey.t.kirsher-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: Matt Fleming <matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
Cc: matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
Mark Rustad
<mark.d.rustad-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] efi: Resolve some shadow warnings
Date: Sat, 06 Sep 2014 02:15:48 -0700 [thread overview]
Message-ID: <1409994948.2460.48.camel@jtkirshe-mobl> (raw)
In-Reply-To: <20140906090331.GQ3001-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
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On Sat, 2014-09-06 at 10:03 +0100, Matt Fleming wrote:
> On Fri, 05 Sep, at 06:34:52PM, Jeff Kirsher wrote:
> > From: Mark Rustad <mark.d.rustad-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> >
> > It is a really bad idea to declare variables or parameters that
> > have the same name as common types. It is valid C, but it gets
> > surprising if a macro expansion attempts to declare an inner
> > local with that type. Change the local names to eliminate the
> > hazard.
>
> Oops, good catch. Could you include a copy of the compiler shadow
> warnings in the commit log? I'm guessing this bug is highlighted with
> -Wshadow? How did you discover this problem?
Mark was using W=2 to see the warning, so I will see if I can wade
through the numerous warnings that get generated with W=2 for the
specific warning.
>
> > Change s16 => ps16, s8 => ps8.
>
> Hmm... Instead, could you change it to str16 and str8? s8/s16 were
> clearly misguided names in the first place, and it's not immediatealy
> obvious to me that a 'ps16' would represent "pointer to 16-bit string".
>
Ok, I can re-spin the patch for Mark, that is if I can capture the
original warning to add to his commit message. Otherwise, I will wait
till Monday to have Mark re-spin the patch.
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prev parent reply other threads:[~2014-09-06 9:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-06 1:34 [PATCH] efi: Resolve some shadow warnings Jeff Kirsher
[not found] ` <1409967292-31441-1-git-send-email-jeffrey.t.kirsher-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2014-09-06 9:03 ` Matt Fleming
[not found] ` <20140906090331.GQ3001-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2014-09-06 9:15 ` Jeff Kirsher [this message]
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