[kbuild-all] 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

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-lk...) > 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... > 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(a)intel.com&gt; > > 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