linux-kernel - [cxl:preview 48/60] drivers/cxl/core/region.c:120:6: warning: format specifies type 'unsigned long long' but the argument has type 'unsigned int'

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Date:   Thu, 27 Jan 2022 17:54:34 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ben Widawsky <ben.widawsky@...el.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        Alison Schofield <alison.schofield@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Ben Widawsky <ben.widawsky@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        linux-kernel@...r.kernel.org
Subject: [cxl:preview 48/60] drivers/cxl/core/region.c:120:6: warning: format
 specifies type 'unsigned long long' but the argument has type 'unsigned int'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git preview
head:   41c2d219a2c8e14de644f4e953e0c57402c3e884
commit: 99fd0afb6e1b21f8de1179f39f491347b6f3f04d [48/60] cxl/region: Introduce concept of region configuration
config: i386-randconfig-a013-20220124 (https://download.01.org/0day-ci/archive/20220127/202201271745.RlAJUNU9-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project f400a6012c668dfaa73462caf067ceb074e66c47)
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/cxl/cxl.git/commit/?id=99fd0afb6e1b21f8de1179f39f491347b6f3f04d
        git remote add cxl https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git
        git fetch --no-tags cxl preview
        git checkout 99fd0afb6e1b21f8de1179f39f491347b6f3f04d
        # 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=i386 SHELL=/bin/bash drivers/cxl/core/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> drivers/cxl/core/region.c:120:6: warning: format specifies type 'unsigned long long' but the argument has type 'unsigned int' [-Wformat]
                             cxld->platform_res.start - cxlr->res->start);
                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   1 warning generated.


vim +120 drivers/cxl/core/region.c

   109	
   110	static ssize_t offset_show(struct device *dev, struct device_attribute *attr,
   111				   char *buf)
   112	{
   113		struct cxl_decoder *cxld = to_cxl_decoder(dev->parent);
   114		struct cxl_region *cxlr = to_cxl_region(dev);
   115	
   116		if (!cxlr->res)
   117			return sysfs_emit(buf, "\n");
   118	
   119		return sysfs_emit(buf, "%#llx\n",
 > 120				  cxld->platform_res.start - cxlr->res->start);
   121	}
   122	static DEVICE_ATTR_RO(offset);
   123	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org