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From: Simon Horman <simon.horman@corigine.com>
To: Dominique Martinet <asmadeus@codewreck.org>
Cc: Eric Van Hensbergen <ericvh@gmail.com>,
	Latchesar Ionkov <lucho@ionkov.net>,
	Christian Schoenebeck <linux_oss@crudebyte.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	v9fs@lists.linux.dev, linux-kernel@vger.kernel.org,
	netdev@vger.kernel.org
Subject: Re: [PATCH 3/5] 9p: virtio: make sure 'offs' is initialized in zc_request
Date: Tue, 2 May 2023 17:27:29 +0200	[thread overview]
Message-ID: <ZFEr4X1s4dVgr+Vg@corigine.com> (raw)
In-Reply-To: <20230427-scan-build-v1-3-efa05d65e2da@codewreck.org>

On Thu, Apr 27, 2023 at 08:23:36PM +0900, Dominique Martinet wrote:
> Similarly to the previous patch: offs can be used in handle_rerrors
> without initializing on small payloads; in this case handle_rerrors will
> not use it because of the size check, but it doesn't hurt to make sure
> it is zero to please scan-build.
> 
> This fixes the following warning:
> net/9p/trans_virtio.c:539:3: warning: 3rd function call argument is an uninitialized value [core.CallAndMessage]
>                 handle_rerror(req, in_hdr_len, offs, in_pages);
>                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>

Reviewed-by: Simon Horman <simon.horman@corigine.com>


  reply	other threads:[~2023-05-02 15:27 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-27 11:23 [PATCH 0/5] Fix scan-build warnings Dominique Martinet
2023-04-27 11:23 ` [PATCH 1/5] 9p: fix ignored return value in v9fs_dir_release Dominique Martinet
2023-05-02 14:46   ` Simon Horman
2023-05-02 23:32     ` Dominique Martinet
2023-05-03  7:17       ` Simon Horman
2023-04-27 11:23 ` [PATCH 2/5] 9p: virtio: fix unlikely null pointer deref in handle_rerror Dominique Martinet
2023-05-02 15:28   ` Simon Horman
2023-04-27 11:23 ` [PATCH 3/5] 9p: virtio: make sure 'offs' is initialized in zc_request Dominique Martinet
2023-05-02 15:27   ` Simon Horman [this message]
2023-04-27 11:23 ` [PATCH 4/5] 9p: virtio: skip incrementing unused variable Dominique Martinet
2023-05-02 15:27   ` Simon Horman
2023-04-27 11:23 ` [PATCH 5/5] 9p: remove dead stores (variable set again without being read) Dominique Martinet
2023-05-02 15:26   ` Simon Horman

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