From: Roland Dreier <rdreier@cisco.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
       Andrew Morton <akpm@linux-foundation.org>,
       "David S. Miller" <davem@davemloft.net>,
       Alan Cox <alan@lxorguk.ukuu.org.uk>, linux-kernel@vger.kernel.org,
       Peter Zijlstra <a.p.zijlstra@chello.nl>,
       Thomas Gleixner <tglx@linutronix.de>, "H. Peter Anvin" <hpa@zytor.com>,
       David Howells <dhowells@redhat.com>
Subject: Re: [announce] new tree: "fix all build warnings, on all configs"
References: <20081017171139.GA1792@elte.hu>
Date: Fri, 17 Oct 2008 10:59:48 -0700
In-Reply-To: <20081017171139.GA1792@elte.hu> (Ingo Molnar's message of "Fri,
	17 Oct 2008 19:11:39 +0200")
Message-ID: <ada3aiv9k6j.fsf@cisco.com>
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 > diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c
 > index c83f88c..d1230a8 100644
 > --- a/drivers/net/mlx4/mcg.c
 > +++ b/drivers/net/mlx4/mcg.c
 > @@ -215,7 +215,7 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 >  
 >  	if (block_mcast_loopback)
 >  		mgm->qp[members_count++] = cpu_to_be32((qp->qpn & MGM_QPN_MASK) |
 > -						       (1 << MGM_BLCK_LB_BIT));
 > +						       (1U << MGM_BLCK_LB_BIT));

This is fixing a warning caused by a gcc bug
(http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37261) which is fixed
upstream.  The change is rather inoffensive but on the other hand I'm
not sure what our policy for dealing with version-specific warning bugs
in gcc should be.

 - R.
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