netdev - Re: [PATCH net] tcp: suppress a division by zero warning

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Message-Id: <20150721.221329.589521534912591124.davem@davemloft.net>
Date:	Tue, 21 Jul 2015 22:13:29 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: [PATCH net] tcp: suppress a division by zero warning

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Wed, 22 Jul 2015 07:02:00 +0200

> From: Eric Dumazet <edumazet@...gle.com>
> 
> Andrew Morton reported following warning on one ARM build
> with gcc-4.4 :
> 
> net/ipv4/inet_hashtables.c: In function 'inet_ehash_locks_alloc':
> net/ipv4/inet_hashtables.c:617: warning: division by zero
> 
> Even guarded with a test on sizeof(spinlock_t), compiler does not
> like current construct on a !CONFIG_SMP build.
> 
> Remove the warning by using a temporary variable.
> 
> Fixes: 095dc8e0c368 ("tcp: fix/cleanup inet_ehash_locks_alloc()")
> Reported-by: Andrew Morton <akpm@...ux-foundation.org>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied, thanks.
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