linux-kernel - un4i-ss-cipher.c warning

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Message-ID: <CAOMqctShdb9xEkBmuaQKfB1cwGupbfH5TS5ZB_P85Hwpn+4zAA@mail.gmail.com>
Date:	Wed, 19 Aug 2015 16:35:36 +0200
From:	Michal Suchanek <hramrach@...il.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Corentin Labbe <clabbe.montjoie@...il.com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-crypto@...r.kernel.org,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: un4i-ss-cipher.c warning

Hello,

when building a kernel with sunxi crypto driver as merged into the
sinxi-wip branch I get a compiler warning.

I am not sure this is the latest version of the driver. It does not
seem to be in mainline yet.

Thanks

Michal

In file included from /scratch/build/linux/include/linux/printk.h:277:0,
                 from /scratch/build/linux/include/linux/kernel.h:13,
                 from /scratch/build/linux/include/linux/clk.h:16,
                 from
/scratch/build/linux/drivers/crypto/sunxi-ss/sun4i-ss.h:15,
                 from
/scratch/build/linux/drivers/crypto/sunxi-ss/sun4i-ss-cipher.c:17:
/scratch/build/linux/drivers/crypto/sunxi-ss/sun4i-ss-cipher.c: In
function ‘sun4i_ss_cipher_poll’:
/scratch/build/linux/include/linux/dynamic_debug.h:86:3: warning:
‘todo’ may be used uninitialized in this function
[-Wmaybe-uninitialized]
   __dynamic_dev_dbg(&descriptor, dev, fmt, \
   ^
/scratch/build/linux/drivers/crypto/sunxi-ss/sun4i-ss-cipher.c:144:15:
note: ‘todo’ was declared here
  unsigned int todo;
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