From: Matthias Kaehlcke <mka@chromium.org>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: "David S . Miller" <davem@davemloft.net>,
linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org,
netdev@vger.kernel.org, Grant Grundler <grundler@chromium.org>,
Michael Davidson <md@google.com>,
Greg Hackmann <ghackmann@google.com>
Subject: Re: [PATCH] mac80211: Fix clang warning about constant operand in logical operation
Date: Thu, 6 Apr 2017 16:07:26 -0700 [thread overview]
Message-ID: <20170406230726.GB78690@google.com> (raw)
In-Reply-To: <1491519117.11399.10.camel@sipsolutions.net>
El Fri, Apr 07, 2017 at 12:51:57AM +0200 Johannes Berg ha dit:
> On Thu, 2017-04-06 at 15:42 -0700, Matthias Kaehlcke wrote:
> >
> > Thanks, it would also require to move the initialization of
> > ieee80211_default_rc_algo into an ifdef. If you can live with such a
> > solution I'm happy to change it.
>
> I think that'd be something I can live with, yeah.
>
> > > git grep 'IS_ENABLED(' | grep '&&'
> >
> > Indeed the warning is not triggered by these constructs. It seems
> > clang only emits the warning when the constant operand is not
> > boolean.
>
> That points to just adding "> 0" to the condition here as another
> alternative solution, I guess? With a comment to make sure it's not
> removed again, that'd seem like the best thing to do.
Good point, that's more digestible. I'll send an updated change soon.
Matthias
next prev parent reply other threads:[~2017-04-06 23:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-06 18:56 [PATCH] mac80211: Fix clang warning about constant operand in logical operation Matthias Kaehlcke
2017-04-06 19:11 ` Johannes Berg
2017-04-06 19:24 ` Matthias Kaehlcke
2017-04-06 21:12 ` Johannes Berg
2017-04-06 22:42 ` Matthias Kaehlcke
2017-04-06 22:51 ` Johannes Berg
2017-04-06 23:07 ` Matthias Kaehlcke [this message]
2017-04-10 14:12 ` David Laight
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