linux-kernel - [driver-core:kobject-const 15/18] drivers/firmware/arm_ffa/bus.c:97:27: error: initialization of 'int (*)(const struct device *, struct kobj_uevent_env *)' from incompatible pointer type 'int (*)(struct device *, struct kobj_uevent

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Message-ID: <202210040839.VI8zbjBA-lkp@intel.com>
Date:   Tue, 4 Oct 2022 08:27:49 +0800
From:   kernel test robot <lkp@...el.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     kbuild-all@...ts.01.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: [driver-core:kobject-const 15/18]
 drivers/firmware/arm_ffa/bus.c:97:27: error: initialization of 'int
 (*)(const struct device *, struct kobj_uevent_env *)' from incompatible
 pointer 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:   9f03f357aab62f25e828feb0be7423fff02b2764
commit: 794bcdced821ac77ed4a517b6038baae03d553ea [15/18] driver core: make struct bus_type.uevent() take a const *
config: arm64-allyesconfig
compiler: aarch64-linux-gcc (GCC) 12.1.0
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/gregkh/driver-core.git/commit/?id=794bcdced821ac77ed4a517b6038baae03d553ea
        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 794bcdced821ac77ed4a517b6038baae03d553ea
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

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/firmware/arm_ffa/bus.c:97:27: error: initialization of 'int (*)(const struct device *, struct kobj_uevent_env *)' from incompatible pointer type 'int (*)(struct device *, struct kobj_uevent_env *)' [-Werror=incompatible-pointer-types]
      97 |         .uevent         = ffa_device_uevent,
         |                           ^~~~~~~~~~~~~~~~~
   drivers/firmware/arm_ffa/bus.c:97:27: note: (near initialization for 'ffa_bus_type.uevent')
   cc1: some warnings being treated as errors


vim +97 drivers/firmware/arm_ffa/bus.c

e781858488b918 Sudeep Holla 2021-05-21   91  
e781858488b918 Sudeep Holla 2021-05-21   92  struct bus_type ffa_bus_type = {
e781858488b918 Sudeep Holla 2021-05-21   93  	.name		= "arm_ffa",
e781858488b918 Sudeep Holla 2021-05-21   94  	.match		= ffa_device_match,
e781858488b918 Sudeep Holla 2021-05-21   95  	.probe		= ffa_device_probe,
244f5d597e1ea5 Sudeep Holla 2021-09-24   96  	.remove		= ffa_device_remove,
e781858488b918 Sudeep Holla 2021-05-21  @97  	.uevent		= ffa_device_uevent,
e781858488b918 Sudeep Holla 2021-05-21   98  	.dev_groups	= ffa_device_attributes_groups,
e781858488b918 Sudeep Holla 2021-05-21   99  };
e781858488b918 Sudeep Holla 2021-05-21  100  EXPORT_SYMBOL_GPL(ffa_bus_type);
e781858488b918 Sudeep Holla 2021-05-21  101  

:::::: The code at line 97 was first introduced by commit
:::::: e781858488b918e30a6ff28e9eab6058b787e3b3 firmware: arm_ffa: Add initial FFA bus support for device enumeration

:::::: TO: Sudeep Holla <sudeep.holla@....com>
:::::: CC: Sudeep Holla <sudeep.holla@....com>

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

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