linux-kernel - Re: [PATCH v4 3/3] mm,page_owner: Filter out stacks by a threshold counter

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Date:   Sat, 22 Apr 2023 03:53:38 +0800
From:   kernel test robot <lkp@...el.com>
To:     Oscar Salvador <osalvador@...e.de>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        Linux Memory Management List <linux-mm@...ck.org>,
        linux-kernel@...r.kernel.org, Michal Hocko <mhocko@...e.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Eric Dumazet <edumazet@...gle.com>,
        Waiman Long <longman@...hat.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Marco Elver <elver@...gle.com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        Alexander Potapenko <glider@...gle.com>,
        Oscar Salvador <osalvador@...e.de>
Subject: Re: [PATCH v4 3/3] mm,page_owner: Filter out stacks by a threshold
 counter

Hi Oscar,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.3-rc7]
[cannot apply to akpm-mm/mm-everything next-20230420]
[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/Oscar-Salvador/lib-stackdepot-Add-a-refcount-field-in-stack_record/20230421-181709
base:   linus/master
patch link:    https://lore.kernel.org/r/20230421101415.5734-4-osalvador%40suse.de
patch subject: [PATCH v4 3/3] mm,page_owner: Filter out stacks by a threshold counter
config: x86_64-randconfig-a012 (https://download.01.org/0day-ci/archive/20230422/202304220312.gCQb3BRX-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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://github.com/intel-lab-lkp/linux/commit/716d3f03add56cf9ed9ae5e49d73cf7e0cbfcb19
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Oscar-Salvador/lib-stackdepot-Add-a-refcount-field-in-stack_record/20230421-181709
        git checkout 716d3f03add56cf9ed9ae5e49d73cf7e0cbfcb19
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304220312.gCQb3BRX-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/page_owner.c:746:1: warning: format specifies type 'unsigned long' but the argument has type 'unsigned long long' [-Wformat]
   DEFINE_SIMPLE_ATTRIBUTE(proc_page_owner_threshold, &page_owner_threshold_get,
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/fs.h:3079:2: note: expanded from macro 'DEFINE_SIMPLE_ATTRIBUTE'
           DEFINE_SIMPLE_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, false)
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/fs.h:3066:36: note: expanded from macro 'DEFINE_SIMPLE_ATTRIBUTE_XSIGNED'
           __simple_attr_check_format(__fmt, 0ull);                        \
                                      ~~~~~  ^~~~
   1 warning generated.


vim +746 mm/page_owner.c

   745	
 > 746	DEFINE_SIMPLE_ATTRIBUTE(proc_page_owner_threshold, &page_owner_threshold_get,
   747				&page_owner_threshold_set, "%lu");
   748	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests