linux-kernel - [driver-core:kobject-const 17/18] drivers/bus/mips_cdmm.c:125:13: error: incompatible function pointer types initializing 'int (*)(const struct device *, struct kobj_uevent_env *)' with an expression of type 'int (struct device *, struct kobj_uevent

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Message-ID: <202210131756.WLh8WSnE-lkp@intel.com>
Date:   Thu, 13 Oct 2022 21:48:46 +0800
From:   kernel test robot <lkp@...el.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [driver-core:kobject-const 17/18] drivers/bus/mips_cdmm.c:125:13:
 error: incompatible function pointer types initializing 'int (*)(const
 struct device *, struct kobj_uevent_env *)' with an expression of type 'int
 (struct device *, struct kobj_uevent_env *)'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git kobject-const
head:   ff8f3cb3d96a18f33eb312fdbcac9a06d9261e66
commit: f62b54d12abbc85d4b7d622fe7286167cc01fa52 [17/18] driver core: make struct bus_type.uevent() take a const *
config: mips-randconfig-r016-20221012
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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 mips cross compiling tool for clang build
        # apt-get install binutils-mips-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/commit/?id=f62b54d12abbc85d4b7d622fe7286167cc01fa52
        git remote add driver-core https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git
        git fetch --no-tags driver-core kobject-const
        git checkout f62b54d12abbc85d4b7d622fe7286167cc01fa52
        # 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=mips SHELL=/bin/bash drivers/

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

All errors (new ones prefixed by >>):

>> drivers/bus/mips_cdmm.c:125:13: error: incompatible function pointer types initializing 'int (*)(const struct device *, struct kobj_uevent_env *)' with an expression of type 'int (struct device *, struct kobj_uevent_env *)' [-Wincompatible-function-pointer-types]
           .uevent         = mips_cdmm_uevent,
                             ^~~~~~~~~~~~~~~~
   1 error generated.


vim +125 drivers/bus/mips_cdmm.c

8286ae03308c6f James Hogan 2015-03-25  120  
8286ae03308c6f James Hogan 2015-03-25  121  struct bus_type mips_cdmm_bustype = {
8286ae03308c6f James Hogan 2015-03-25  122  	.name		= "cdmm",
8286ae03308c6f James Hogan 2015-03-25  123  	.dev_groups	= mips_cdmm_dev_groups,
8286ae03308c6f James Hogan 2015-03-25  124  	.match		= mips_cdmm_match,
8286ae03308c6f James Hogan 2015-03-25 @125  	.uevent		= mips_cdmm_uevent,
8286ae03308c6f James Hogan 2015-03-25  126  };
8286ae03308c6f James Hogan 2015-03-25  127  EXPORT_SYMBOL_GPL(mips_cdmm_bustype);
8286ae03308c6f James Hogan 2015-03-25  128  

:::::: The code at line 125 was first introduced by commit
:::::: 8286ae03308c6f97f346f9f8cb9174b04969add5 MIPS: Add CDMM bus support

:::::: TO: James Hogan <james.hogan@...tec.com>
:::::: CC: Ralf Baechle <ralf@...ux-mips.org>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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