From: Nathan Chancellor <nathan@kernel.org>
To: kernel test robot <lkp@intel.com>
Cc: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>,
llvm@lists.linux.dev, kbuild-all@lists.01.org,
linux-kernel@vger.kernel.org
Subject: Re: fs/ntfs3/fsntfs.c:2248:41: warning: taking address of packed member 'de' of class or structure 'NTFS_DE_SII' may result in an unaligned pointer value
Date: Mon, 24 Jan 2022 10:41:28 -0700 [thread overview]
Message-ID: <Ye7kyA3yJupMLSD2@archlinux-ax161> (raw)
In-Reply-To: <202201242326.uQ3OazUi-lkp@intel.com>
On Mon, Jan 24, 2022 at 11:21:59PM +0800, kernel test robot wrote:
> Hi Konstantin,
>
> FYI, the error/warning still remains.
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: dd81e1c7d5fb126e5fbc5c9e334d7b3ec29a16a0
> commit: 6e5be40d32fb1907285277c02e74493ed43d77fe fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile
> date: 5 months ago
> config: mips-buildonly-randconfig-r001-20220122 (https://download.01.org/0day-ci/archive/20220124/202201242326.uQ3OazUi-lkp@intel.com/config)
> compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 7b3d30728816403d1fd73cc5082e9fb761262bce)
> 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 mips cross compiling tool for clang build
> # apt-get install binutils-mips-linux-gnu
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6e5be40d32fb1907285277c02e74493ed43d77fe
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout 6e5be40d32fb1907285277c02e74493ed43d77fe
> # save the config file to linux build tree
> mkdir build_dir
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash fs/ntfs3/
>
> 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 >>):
>
> fs/ntfs3/fsntfs.c:1874:9: warning: variable 'cnt' set but not used [-Wunused-but-set-variable]
> size_t cnt, off;
> ^
> >> fs/ntfs3/fsntfs.c:2248:41: warning: taking address of packed member 'de' of class or structure 'NTFS_DE_SII' may result in an unaligned pointer value [-Waddress-of-packed-member]
> err = indx_insert_entry(indx_sii, ni, &sii_e.de, NULL, NULL);
> ^~~~~~~~
> 2 warnings generated.
This warning has the same root cause as
https://lore.kernel.org/r/YenXz+RznXBuJMSR@dev-arch.archlinux-ax161/.
Intel folks, would it be possible to limit instances of
-Waddress-of-packed-member with mips randconfigs to our mailing list for
the reason I note in the link above?
Cheers,
Nathan
WARNING: multiple messages have this Message-ID (diff)
From: Nathan Chancellor <nathan@kernel.org>
To: kbuild-all@lists.01.org
Subject: Re: fs/ntfs3/fsntfs.c:2248:41: warning: taking address of packed member 'de' of class or structure 'NTFS_DE_SII' may result in an unaligned pointer value
Date: Mon, 24 Jan 2022 10:41:28 -0700 [thread overview]
Message-ID: <Ye7kyA3yJupMLSD2@archlinux-ax161> (raw)
In-Reply-To: <202201242326.uQ3OazUi-lkp@intel.com>
[-- Attachment #1: Type: text/plain, Size: 2480 bytes --]
On Mon, Jan 24, 2022 at 11:21:59PM +0800, kernel test robot wrote:
> Hi Konstantin,
>
> FYI, the error/warning still remains.
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: dd81e1c7d5fb126e5fbc5c9e334d7b3ec29a16a0
> commit: 6e5be40d32fb1907285277c02e74493ed43d77fe fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile
> date: 5 months ago
> config: mips-buildonly-randconfig-r001-20220122 (https://download.01.org/0day-ci/archive/20220124/202201242326.uQ3OazUi-lkp(a)intel.com/config)
> compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 7b3d30728816403d1fd73cc5082e9fb761262bce)
> 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 mips cross compiling tool for clang build
> # apt-get install binutils-mips-linux-gnu
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6e5be40d32fb1907285277c02e74493ed43d77fe
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout 6e5be40d32fb1907285277c02e74493ed43d77fe
> # save the config file to linux build tree
> mkdir build_dir
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash fs/ntfs3/
>
> 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 >>):
>
> fs/ntfs3/fsntfs.c:1874:9: warning: variable 'cnt' set but not used [-Wunused-but-set-variable]
> size_t cnt, off;
> ^
> >> fs/ntfs3/fsntfs.c:2248:41: warning: taking address of packed member 'de' of class or structure 'NTFS_DE_SII' may result in an unaligned pointer value [-Waddress-of-packed-member]
> err = indx_insert_entry(indx_sii, ni, &sii_e.de, NULL, NULL);
> ^~~~~~~~
> 2 warnings generated.
This warning has the same root cause as
https://lore.kernel.org/r/YenXz+RznXBuJMSR(a)dev-arch.archlinux-ax161/.
Intel folks, would it be possible to limit instances of
-Waddress-of-packed-member with mips randconfigs to our mailing list for
the reason I note in the link above?
Cheers,
Nathan
next prev parent reply other threads:[~2022-01-24 17:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-24 15:21 fs/ntfs3/fsntfs.c:2248:41: warning: taking address of packed member 'de' of class or structure 'NTFS_DE_SII' may result in an unaligned pointer value kernel test robot
2022-01-24 15:21 ` kernel test robot
2022-01-24 17:41 ` Nathan Chancellor [this message]
2022-01-24 17:41 ` Nathan Chancellor
2022-01-25 8:08 ` [kbuild-all] " Chen, Rong A
2022-01-25 8:08 ` Chen, Rong A
-- strict thread matches above, loose matches on Subject: below --
2022-07-25 5:35 kernel test robot
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