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Re: [PATCH v2 1/2] crypto: sunxi - don't print confusing data

From Herbert Xu <herbert@gondor.apana.org.au>
Newsgroups linux.kernel
Subject Re: [PATCH v2 1/2] crypto: sunxi - don't print confusing data
Date 2016-01-27 15:20 +0100
Message-ID <qVz6X-4J4-29@gated-at.bofh.it> (permalink)
References <qVcal-4P7-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, Jan 26, 2016 at 02:44:50PM +0100, Arnd Bergmann wrote:
> gcc correctly warns that the printk output contains a variable that
> it thinks is not initialized in some cases:
> 
> drivers/crypto/sunxi-ss/sun4i-ss-cipher.c: In function 'sun4i_ss_cipher_poll':
> drivers/crypto/sunxi-ss/sun4i-ss-cipher.c:254:76: warning: 'todo' may be used uninitialized in this function [-Wmaybe-uninitialized]
> drivers/crypto/sunxi-ss/sun4i-ss-cipher.c:144:15: note: 'todo' was declared here
> 
> A closer look at the function reveals that the variable is always
> initialized at this point (ileft is guaranteed to be positive at the
> start), but its contents are not well-defined:
> Depending on some other variables, it might be either a count in
> words or bytes, and it could refer to either input or output.
> 
> The easiest solution apparently is to remove the confusing output
> and let the reader figure out the state from the other variables.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Applied.
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

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Thread

[PATCH v2 1/2] crypto: sunxi - don't print confusing data Arnd Bergmann <arnd@arndb.de> - 2016-01-26 14:50 +0100
  Re: [PATCH v2 1/2] crypto: sunxi - don't print confusing data Herbert Xu <herbert@gondor.apana.org.au> - 2016-01-27 15:20 +0100
  Re: [PATCH v2 1/2] crypto: sunxi - don't print confusing data Corentin LABBE <clabbe.montjoie@gmail.com> - 2016-01-27 20:50 +0100

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