On Thu 12-08-21 02:19:33, kernel test robot wrote: > Hi Jan, > > I love your patch! Perhaps something to improve: > > [auto build test WARNING on ext4/dev] > [also build test WARNING on ext3/for_next linus/master v5.14-rc5 next-20210811] > [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/Jan-Kara/ext4-Speedup-orphan-file-handling/20210811-182113 > base: https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev > config: parisc-randconfig-s032-20210810 (attached as .config) > compiler: hppa-linux-gcc (GCC) 10.3.0 > reproduce: > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # apt-get install sparse > # sparse version: v0.6.3-348-gf0e6938b-dirty > # https://github.com/0day-ci/linux/commit/77029a42c6e037181b218cbf10a93561e664fb9e > git remote add linux-review https://github.com/0day-ci/linux > git fetch --no-tags linux-review Jan-Kara/ext4-Speedup-orphan-file-handling/20210811-182113 > git checkout 77029a42c6e037181b218cbf10a93561e664fb9e > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=parisc SHELL=/bin/bash fs/ext4/ > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > > sparse warnings: (new ones prefixed by >>) > >> fs/ext4/orphan.c:76:18: sparse: sparse: cast from restricted __le32 > >> fs/ext4/orphan.c:76:18: sparse: sparse: cast from restricted __le32 > >> fs/ext4/orphan.c:76:18: sparse: sparse: cast to restricted __le32 ... > > 76 } while (cmpxchg(&bdata[j], 0, cpu_to_le32(inode->i_ino)) != 0); Yeah, I didn't bother to convert 0 to little endian which is tripping up sparse. I've now added explicit casts of 0 to __le32 so silence the warning. Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR
