netdev - Re: [PATCH v2 1/2] net/mlx4_core: clean up cq_res_start_move

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20140116.160505.2018103158475655301.davem@davemloft.net>
Date:	Thu, 16 Jan 2014 16:05:05 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	pebolle@...cali.nl
Cc:	ogerlitz@...lanox.com, jackm@....mellanox.co.il,
	ronye@...lanox.com, hadarh@...lanox.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] net/mlx4_core: clean up cq_res_start_move_to()

From: Paul Bolle <pebolle@...cali.nl>
Date: Tue, 14 Jan 2014 20:45:36 +0100

> Building resource_tracker.o triggers a GCC warning:
>     drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'mlx4_HW2SW_CQ_wrapper':
>     drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:3019:16: warning: 'cq' may be used uninitialized in this function [-Wmaybe-uninitialized]
>       atomic_dec(&cq->mtt->ref_count);
>                     ^
> 
> This is a false positive. But a cleanup of cq_res_start_move_to() can
> help GCC here. The code currently uses a switch statement where an
> if/else construct would do too, since only two of the switch's four
> cases can ever occur. Dropping that switch makes the warning go away.
> 
> While we're at it, add some missing braces.
> 
> Signed-off-by: Paul Bolle <pebolle@...cali.nl>

Applied.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html