linux-kernel - [driver-core:kobject-const 15/18] arch/parisc/kernel/drivers.c:623:19: 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: <202210032024.gdSRLGy7-lkp@intel.com>
Date:   Mon, 3 Oct 2022 20:40:19 +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]
 arch/parisc/kernel/drivers.c:623:19: 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:   ed9d0211c055e56f57141bc3a62b4ce7036083a2
commit: 57f0edb9a3d781a8a8817ae7005aa3c17076054c [15/18] driver core: make struct bus_type.uevent() take a const *
config: parisc-randconfig-r034-20221002
compiler: hppa-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=57f0edb9a3d781a8a8817ae7005aa3c17076054c
        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 57f0edb9a3d781a8a8817ae7005aa3c17076054c
        # 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=parisc 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 >>):

   arch/parisc/kernel/drivers.c:418:31: warning: no previous prototype for 'create_tree_node' [-Wmissing-prototypes]
     418 | struct parisc_device * __init create_tree_node(char id, struct device *parent)
         |                               ^~~~~~~~~~~~~~~~
>> arch/parisc/kernel/drivers.c:623:19: 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]
     623 |         .uevent = parisc_uevent,
         |                   ^~~~~~~~~~~~~
   arch/parisc/kernel/drivers.c:623:19: note: (near initialization for 'parisc_bus_type.uevent')
   arch/parisc/kernel/drivers.c: In function 'parse_tree_node':
   arch/parisc/kernel/drivers.c:744:30: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
     744 |                 /* nothing */;
         |                              ^
   cc1: some warnings being treated as errors


vim +623 arch/parisc/kernel/drivers.c

^1da177e4c3f415 Linus Torvalds     2005-04-16  619  
^1da177e4c3f415 Linus Torvalds     2005-04-16  620  struct bus_type parisc_bus_type = {
^1da177e4c3f415 Linus Torvalds     2005-04-16  621  	.name = "parisc",
^1da177e4c3f415 Linus Torvalds     2005-04-16  622  	.match = parisc_generic_match,
7246c31e45021bc Helge Deller       2008-12-25 @623  	.uevent = parisc_uevent,
9b7c66822700434 Greg Kroah-Hartman 2017-06-06  624  	.dev_groups = parisc_device_groups,
ad3ed31c682d956 Russell King       2006-01-05  625  	.probe = parisc_driver_probe,
b86db40e1ecc910 Helge Deller       2018-03-04  626  	.remove = __exit_p(parisc_driver_remove),
^1da177e4c3f415 Linus Torvalds     2005-04-16  627  };
^1da177e4c3f415 Linus Torvalds     2005-04-16  628  

:::::: The code at line 623 was first introduced by commit
:::::: 7246c31e45021bc68688c4a8fd2bbb70b485d1ef parisc: add uevent helper for parisc bus

:::::: TO: Helge Deller <deller@....de>
:::::: CC: Kyle McMartin <kyle@...artin.ca>

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

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