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Shutemov" , Andrew Morton , Mel Gorman , Vlastimil Babka , David Hildenbrand Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List , linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: Re: [PATCH 10/10] mm, treewide: Redefine MAX_ORDER sanely Message-ID: <202303152343.D93IbJmn-lkp@intel.com> References: <20230315113133.11326-11-kirill.shutemov@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230315113133.11326-11-kirill.shutemov@linux.intel.com> X-Rspamd-Queue-Id: E27661C0020 X-Stat-Signature: osb83y7nzox9cg9z9et1eaap7kn1zbwr X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1678894038-734415 X-HE-Meta: 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 dnTzZEHA Ide11FJXqpbIeS5HoN95lG9O5vPEh7GOPZB1/g5JaM97WgOHt31sxFzvbJmg9OU1NNJTLVDi8OyvC8eJ8iEJq5ZfNoDmeeEI9TwlUSA6tH9KPV5CkDpk0Xh07iKIg/0tvUWiyw2eU342dOikXRjxvWeSRmvGoRvUxpJQ/+R1AlJdOVFxvrj6lg0bvZjQoe174MubIfBWuyjw40bg91MwosTHIROYpDLuwDgsJxLnOgxKFmDp0urU3RA22Y+j0DkDTfJZV7qMSPMU10ptxKz9NviNKARMDALGW8vz5DsEUKZznigFZ1xsL9Ru/bg5iJdun3Hoku3MbrX34mg3D72K4TkyLkzKPFDwL3/jPrBVEnPk31ICW2Cd5/NBSra/PKYtvMRsWZ/6VxHEFsB/qYVOVHuCuGSkYtW/DWeUrt/p4/hZn8SSRbctkInqYAcGJCHn3knHUGKIeCFOXDl9pW+VW6OwepMtYcPkpHWM7cUtUVbmlCmU= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi Kirill, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on powerpc/next powerpc/fixes linus/master v6.3-rc2 next-20230315] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Kirill-A-Shutemov/sparc-mm-Fix-MAX_ORDER-usage-in-tsb_grow/20230315-193254 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230315113133.11326-11-kirill.shutemov%40linux.intel.com patch subject: [PATCH 10/10] mm, treewide: Redefine MAX_ORDER sanely config: arm-randconfig-r033-20230313 (https://download.01.org/0day-ci/archive/20230315/202303152343.D93IbJmn-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/intel-lab-lkp/linux/commit/ccefb5df94c3c6c966f6f583d60c9d9c832b7a34 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Kirill-A-Shutemov/sparc-mm-Fix-MAX_ORDER-usage-in-tsb_grow/20230315-193254 git checkout ccefb5df94c3c6c966f6f583d60c9d9c832b7a34 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Link: https://lore.kernel.org/oe-kbuild-all/202303152343.D93IbJmn-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/memblock.c:2046:11: warning: comparison of distinct pointer types ('typeof (11) *' (aka 'int *') and 'typeof (__ffs(start)) *' (aka 'unsigned long *')) [-Wcompare-distinct-pointer-types] order = min(MAX_ORDER, __ffs(start)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:67:19: 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 +2046 mm/memblock.c 2040 2041 static void __init __free_pages_memory(unsigned long start, unsigned long end) 2042 { 2043 int order; 2044 2045 while (start < end) { > 2046 order = min(MAX_ORDER, __ffs(start)); 2047 2048 while (start + (1UL << order) > end) 2049 order--; 2050 2051 memblock_free_pages(pfn_to_page(start), start, order); 2052 2053 start += (1UL << order); 2054 } 2055 } 2056 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests