linux-kernel - Re: [PATCH] net: mac80211: fix compilation warning

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Message-ID: <AANLkTi=GHOyeSWA96UUokmYSdHHc5cuY53xJuhVzBNwz@mail.gmail.com>
Date:	Mon, 7 Mar 2011 12:15:02 +0800
From:	Jovi Zhang <bookjovi@...il.com>
To:	Larry Finger <Larry.Finger@...inger.net>
Cc:	Ben Hutchings <bhutchings@...arflare.com>,
	"John W. Linville" <linville@...driver.com>,
	Johannes Berg <johannes@...solutions.net>,
	"David S. Miller" <davem@...emloft.net>,
	"open list:NETWORKING [WIREL..." <linux-wireless@...r.kernel.org>,
	"open list:NETWORKING [GENERAL]" <netdev@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] net: mac80211: fix compilation warning

On Sun, Mar 6, 2011 at 12:30 AM, Larry Finger <Larry.Finger@...inger.net> wrote:
> On 03/05/2011 07:52 AM, Jovi Zhang wrote:
>>
>> On Sat, Mar 5, 2011 at 8:31 PM, Ben Hutchings<bhutchings@...arflare.com>
>>  wrote:
>>>
>>> On Wed, 2011-03-02 at 18:32 -0500, bookjovi@...il.com wrote:
>>>>
>>>> From: Jovi Zhang<bookjovi@...il.com>
>>>>
>>>> this commit fix compilation warning as following:
>>>> net/mac80211/tx.c:1753: warning: unused variable mppath
>>>
>>> [...]
>>>
>>> You clearly didn't try building this with CONFIG_MAC80211_MESH enabled.
>>>
>> Sorry, indeed, maybe should be like this:
>>
>> +#ifdef CONFIG_MAC80211_MESH
>>        struct mesh_path *mppath = NULL;
>> +#endif
>
> Linville likes "struct mesh_path *mppath __maybe_unused = NULL;" over the
> ifdef form.

That's better, Thanks.
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