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Message-ID: <202212200807.9eHJ2n2W-lkp@intel.com>
Date: Tue, 20 Dec 2022 08:59:57 +0800
From: kernel test robot <lkp@...el.com>
To: Robert Elliott <elliott@....com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org,
Herbert Xu <herbert@...dor.apana.org.au>
Subject: 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 char ...
Hi Robert,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 6feb57c2fd7c787aecf2846a535248899e7b70fa
commit: 4a329fecc9aaebb27a53fa7abfa53bbc2ee42f3f crypto: Kconfig - submenus for arm and arm64
date: 4 months ago
config: arm-randconfig-r046-20221218
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 98b13979fb05f3ed288a900deb843e7b27589e58)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4a329fecc9aaebb27a53fa7abfa53bbc2ee42f3f
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 4a329fecc9aaebb27a53fa7abfa53bbc2ee42f3f
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/crypto/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
>> 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 char *, int)') converts to incompatible function type [-Wcast-function-type-strict]
(sha1_block_fn *)sha1_block_data_order);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/crypto/sha1_glue.c:40:30: 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 char *, int)') converts to incompatible function type [-Wcast-function-type-strict]
sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_block_data_order);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/crypto/sha1_glue.c:48:8: 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 char *, int)') converts to incompatible function type [-Wcast-function-type-strict]
(sha1_block_fn *)sha1_block_data_order);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3 warnings generated.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for SERIAL_SUNPLUS
Depends on [n]: TTY [=n] && HAS_IOMEM [=y] && (ARCH_SUNPLUS [=y] || COMPILE_TEST [=y])
Selected by [y]:
- SOC_SP7021 [=y] && ARCH_SUNPLUS [=y]
WARNING: unmet direct dependencies detected for SERIAL_SUNPLUS_CONSOLE
Depends on [n]: TTY [=n] && HAS_IOMEM [=y] && SERIAL_SUNPLUS [=y]
Selected by [y]:
- SOC_SP7021 [=y] && ARCH_SUNPLUS [=y]
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
:::::: The code at line 34 was first introduced by commit
:::::: 90451d6bdb787e1631c6ce4619221eb59562343c crypto: arm/sha1 - move SHA-1 ARM asm implementation to base layer
:::::: TO: Ard Biesheuvel <ard.biesheuvel@...aro.org>
:::::: CC: Herbert Xu <herbert@...dor.apana.org.au>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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