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Wed, 16 Mar 2022 23:25:01 +0000 Date: Thu, 17 Mar 2022 07:24:26 +0800 From: kernel test robot To: Andreas Gruenbacher Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, cluster-devel@redhat.com, linux-kernel@vger.kernel.org Subject: [gfs2:for-next 11/11] fs/gfs2/file.c:796:10: warning: comparison of distinct pointer types ('typeof (size) *' (aka 'unsigned int *') and 'typeof (nr_dirtied * (1UL << 16)) *' (aka 'unsigned long *')) Message-ID: <202203170735.Ndb8Ua7n-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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: hexagon-randconfig-r041-20220313 (https://download.01.org/0day-ci/archive/20220317/202203170735.Ndb8Ua7n-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a6ec1e3d798f8eab43fb3a91028c6ab04e115fcb) 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 # 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=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash fs/gfs2/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> fs/gfs2/file.c:796:10: warning: comparison of distinct pointer types ('typeof (size) *' (aka 'unsigned int *') and 'typeof (nr_dirtied * (1UL << 16)) *' (aka 'unsigned long *')) [-Wcompare-distinct-pointer-types] size = min(size, nr_dirtied * PAGE_SIZE); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:45:19: note: expanded from macro 'min' #define min(x, y) __careful_cmp(x, y, <) ^~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:36:24: note: expanded from macro '__careful_cmp' __builtin_choose_expr(__safe_cmp(x, y), \ ^~~~~~~~~~~~~~~~ include/linux/minmax.h:26:4: note: expanded from macro '__safe_cmp' (__typecheck(x, y) && __no_side_effects(x, y)) ^~~~~~~~~~~~~~~~~ include/linux/minmax.h:20:28: note: expanded from macro '__typecheck' (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1))) ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ 1 warning generated. 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 --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org