From: kernel test robot <lkp@intel.com>
To: Ard Biesheuvel <ardb@kernel.org>, linux-crypto@vger.kernel.org
Cc: kbuild-all@lists.01.org, herbert@gondor.apana.org.au,
ebiggers@kernel.org, Ard Biesheuvel <ardb@kernel.org>
Subject: Re: [PATCH] crypto: crypto_xor - use helpers for unaligned accesses
Date: Wed, 16 Feb 2022 01:01:32 +0800 [thread overview]
Message-ID: <202202160048.w2jucJCP-lkp@intel.com> (raw)
In-Reply-To: <20220215105717.184572-1-ardb@kernel.org>
Hi Ard,
I love your patch! Perhaps something to improve:
[auto build test WARNING on herbert-cryptodev-2.6/master]
[also build test WARNING on herbert-crypto-2.6/master v5.17-rc4 next-20220215]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Ard-Biesheuvel/crypto-crypto_xor-use-helpers-for-unaligned-accesses/20220215-185741
base: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
config: i386-randconfig-a003 (https://download.01.org/0day-ci/archive/20220216/202202160048.w2jucJCP-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://github.com/0day-ci/linux/commit/6ca2d09816a67230ab30f3c7e7d87815e833d0af
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Ard-Biesheuvel/crypto-crypto_xor-use-helpers-for-unaligned-accesses/20220215-185741
git checkout 6ca2d09816a67230ab30f3c7e7d87815e833d0af
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kernel/ drivers/md/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from ./arch/x86/include/generated/asm/unaligned.h:1,
from drivers/md/dm-crypt.c:30:
drivers/md/dm-crypt.c: In function 'crypt_iv_tcw_whitening':
>> include/asm-generic/unaligned.h:14:8: warning: 'buf.x' is used uninitialized in this function [-Wuninitialized]
14 | __pptr->x; \
| ^~
>> include/asm-generic/unaligned.h:14:8: warning: '*((void *)&buf+4).x' is used uninitialized in this function [-Wuninitialized]
include/asm-generic/unaligned.h:14:8: warning: '*((void *)&buf+8).x' is used uninitialized in this function [-Wuninitialized]
include/asm-generic/unaligned.h:14:8: warning: '*((void *)&buf+12).x' is used uninitialized in this function [-Wuninitialized]
vim +14 include/asm-generic/unaligned.h
aafe4dbed0bf6c Arnd Bergmann 2009-05-13 11
803f4e1eab7a89 Arnd Bergmann 2021-05-08 12 #define __get_unaligned_t(type, ptr) ({ \
803f4e1eab7a89 Arnd Bergmann 2021-05-08 13 const struct { type x; } __packed *__pptr = (typeof(__pptr))(ptr); \
803f4e1eab7a89 Arnd Bergmann 2021-05-08 @14 __pptr->x; \
803f4e1eab7a89 Arnd Bergmann 2021-05-08 15 })
803f4e1eab7a89 Arnd Bergmann 2021-05-08 16
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
WARNING: multiple messages have this Message-ID (diff)
From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: Re: [PATCH] crypto: crypto_xor - use helpers for unaligned accesses
Date: Wed, 16 Feb 2022 01:01:32 +0800 [thread overview]
Message-ID: <202202160048.w2jucJCP-lkp@intel.com> (raw)
In-Reply-To: <20220215105717.184572-1-ardb@kernel.org>
[-- Attachment #1: Type: text/plain, Size: 2826 bytes --]
Hi Ard,
I love your patch! Perhaps something to improve:
[auto build test WARNING on herbert-cryptodev-2.6/master]
[also build test WARNING on herbert-crypto-2.6/master v5.17-rc4 next-20220215]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Ard-Biesheuvel/crypto-crypto_xor-use-helpers-for-unaligned-accesses/20220215-185741
base: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
config: i386-randconfig-a003 (https://download.01.org/0day-ci/archive/20220216/202202160048.w2jucJCP-lkp(a)intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://github.com/0day-ci/linux/commit/6ca2d09816a67230ab30f3c7e7d87815e833d0af
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Ard-Biesheuvel/crypto-crypto_xor-use-helpers-for-unaligned-accesses/20220215-185741
git checkout 6ca2d09816a67230ab30f3c7e7d87815e833d0af
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kernel/ drivers/md/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from ./arch/x86/include/generated/asm/unaligned.h:1,
from drivers/md/dm-crypt.c:30:
drivers/md/dm-crypt.c: In function 'crypt_iv_tcw_whitening':
>> include/asm-generic/unaligned.h:14:8: warning: 'buf.x' is used uninitialized in this function [-Wuninitialized]
14 | __pptr->x; \
| ^~
>> include/asm-generic/unaligned.h:14:8: warning: '*((void *)&buf+4).x' is used uninitialized in this function [-Wuninitialized]
include/asm-generic/unaligned.h:14:8: warning: '*((void *)&buf+8).x' is used uninitialized in this function [-Wuninitialized]
include/asm-generic/unaligned.h:14:8: warning: '*((void *)&buf+12).x' is used uninitialized in this function [-Wuninitialized]
vim +14 include/asm-generic/unaligned.h
aafe4dbed0bf6c Arnd Bergmann 2009-05-13 11
803f4e1eab7a89 Arnd Bergmann 2021-05-08 12 #define __get_unaligned_t(type, ptr) ({ \
803f4e1eab7a89 Arnd Bergmann 2021-05-08 13 const struct { type x; } __packed *__pptr = (typeof(__pptr))(ptr); \
803f4e1eab7a89 Arnd Bergmann 2021-05-08 @14 __pptr->x; \
803f4e1eab7a89 Arnd Bergmann 2021-05-08 15 })
803f4e1eab7a89 Arnd Bergmann 2021-05-08 16
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
next prev parent reply other threads:[~2022-02-15 17:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-15 10:57 [PATCH] crypto: crypto_xor - use helpers for unaligned accesses Ard Biesheuvel
2022-02-15 13:47 ` kernel test robot
2022-02-15 13:47 ` kernel test robot
2022-02-15 17:01 ` kernel test robot [this message]
2022-02-15 17:01 ` kernel test robot
2022-02-23 2:50 ` Herbert Xu
2022-02-23 6:44 ` Ard Biesheuvel
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