Messages in this thread | | | Date | Thu, 17 Mar 2022 11:25:36 +0800 | From | kernel test robot <> | Subject | [gfs2:for-next 11/11] fs/gfs2/file.c:796:24: sparse: sparse: incompatible types in comparison expression (different type sizes): |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git for-next head: a20050c14edf19add5a9588cb196bb00aa410650 commit: a20050c14edf19add5a9588cb196bb00aa410650 [11/11] gfs2: Add read/write page 'fault_stats' config: sh-randconfig-s032-20220313 (https://download.01.org/0day-ci/archive/20220317/202203171137.AU0RE6e4-lkp@intel.com/config) compiler: sh4-linux-gcc (GCC) 11.2.0 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: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git/commit/?id=a20050c14edf19add5a9588cb196bb00aa410650 git remote add gfs2 https://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git git fetch --no-tags gfs2 for-next git checkout a20050c14edf19add5a9588cb196bb00aa410650 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=sh SHELL=/bin/bash fs/gfs2/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>) >> fs/gfs2/file.c:796:24: sparse: sparse: incompatible types in comparison expression (different type sizes): fs/gfs2/file.c:796:24: sparse: unsigned int * >> fs/gfs2/file.c:796:24: sparse: unsigned long * fs/gfs2/file.c:796:24: sparse: sparse: cannot size expression
vim +796 fs/gfs2/file.c
772 773 static inline bool should_fault_in_pages(ssize_t ret, struct iov_iter *i, 774 size_t *prev_count, 775 size_t *window_size) 776 { 777 size_t count = iov_iter_count(i); 778 size_t size, offs; 779 780 if (likely(!count)) 781 return false; 782 if (ret <= 0 && ret != -EFAULT) 783 return false; 784 if (!iter_is_iovec(i)) 785 return false; 786 787 size = PAGE_SIZE; 788 offs = offset_in_page(i->iov[0].iov_base + i->iov_offset); 789 if (*prev_count != count || !*window_size) { 790 int nr_dirtied; 791 792 size = ALIGN(offs + count, PAGE_SIZE); 793 size = min_t(size_t, size, SZ_1M); 794 nr_dirtied = max(current->nr_dirtied_pause - 795 current->nr_dirtied, 8); > 796 size = min(size, nr_dirtied * PAGE_SIZE); 797 } 798 799 *prev_count = count; 800 *window_size = size - offs; 801 return true; 802 } 803
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