linux-kernel - Re: [PATCH] netfilter: nf_nat_h323: fix logical-not-parentheses warning

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Message-ID: <20170811174259.GA3743@salvia>
Date:   Fri, 11 Aug 2017 19:42:59 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     mka@...omium.org, lorenzo@...gle.com,
        Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
        Florian Westphal <fw@...len.de>,
        "David S. Miller" <davem@...emloft.net>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        netfilter-devel@...r.kernel.org, coreteam@...filter.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netfilter: nf_nat_h323: fix logical-not-parentheses
 warning

Hi Nick,

On Mon, Jul 31, 2017 at 11:39:49AM -0700, Nick Desaulniers wrote:
> Clang produces the following warning:
[...]
> Also, it's even cleaner to use the form:
> 
> if (x)
> 
> but then if the return codes change from treating 0 as success (unlikely),
> then all call sites must be updated.
> 
> I'm happy to send v2 that changes to that form, and updates the other call
> sites to be:
> 
> if (set_h225_addr())
>   handle_failures()
> else
>   handle_success()

That sounds very reasonable, send a v2 if this triggers a larger
patch.

Or I can just take this patch, as you prefer.

Thanks!