Messages in this thread | | | Date | Thu, 8 Dec 2022 12:58:50 +0800 | From | Herbert Xu <> | Subject | Re: arch/arm/crypto/sha1_glue.c:34:8: warning: cast from 'void (*)(u32 *, const unsigned char *, unsigned int)' (aka 'void (*)(unsigned int *, const unsigned char *, unsigned int)') to 'sha1_block_fn *' (aka 'void (*)(struct sha1_state *, const unsigned |
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On Fri, Nov 04, 2022 at 07:33:43PM +0800, kernel test robot wrote: > > vim +34 arch/arm/crypto/sha1_glue.c > > f0be44f4fb1fae David McCullough 2012-09-07 23 > 1f8673d31a999e Jussi Kivilinna 2014-07-29 24 asmlinkage void sha1_block_data_order(u32 *digest, > f0be44f4fb1fae David McCullough 2012-09-07 25 const unsigned char *data, unsigned int rounds); > f0be44f4fb1fae David McCullough 2012-09-07 26 > 604682551aa511 Jussi Kivilinna 2014-07-29 27 int sha1_update_arm(struct shash_desc *desc, const u8 *data, > f0be44f4fb1fae David McCullough 2012-09-07 28 unsigned int len) > f0be44f4fb1fae David McCullough 2012-09-07 29 { > 90451d6bdb787e Ard Biesheuvel 2015-04-09 30 /* make sure casting to sha1_block_fn() is safe */ > 90451d6bdb787e Ard Biesheuvel 2015-04-09 31 BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0); > f0be44f4fb1fae David McCullough 2012-09-07 32 > 90451d6bdb787e Ard Biesheuvel 2015-04-09 33 return sha1_base_do_update(desc, data, len, > 90451d6bdb787e Ard Biesheuvel 2015-04-09 @34 (sha1_block_fn *)sha1_block_data_order); > f0be44f4fb1fae David McCullough 2012-09-07 35 } > 604682551aa511 Jussi Kivilinna 2014-07-29 36 EXPORT_SYMBOL_GPL(sha1_update_arm); > f0be44f4fb1fae David McCullough 2012-09-07 37
So clan doesn't like the cast on the assembly function.
Ard, why can't we just change the signature of the assembly function instead of casting?
Thanks, -- 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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