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SubjectRe: [PATCH] Fix the following checkpatch error:
Hi jingyuwang,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master v5.19-rc2 next-20220610]
[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]

url: https://github.com/intel-lab-lkp/linux/commits/jingyuwang/Fix-the-following-checkpatch-error/20220614-050258
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20220614/202206140910.24mkxBXB-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
# https://github.com/intel-lab-lkp/linux/commit/35742a839670fa8937c7040160e16b7009b2a9ae
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review jingyuwang/Fix-the-following-checkpatch-error/20220614-050258
git checkout 35742a839670fa8937c7040160e16b7009b2a9ae
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

init/main.c:773:20: warning: no previous prototype for 'arch_post_acpi_subsys_init' [-Wmissing-prototypes]
773 | void __init __weak arch_post_acpi_subsys_init(void) { }
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
init/main.c:785:20: warning: no previous prototype for 'mem_encrypt_init' [-Wmissing-prototypes]
785 | void __init __weak mem_encrypt_init(void) { }
| ^~~~~~~~~~~~~~~~
init/main.c:787:20: warning: no previous prototype for 'poking_init' [-Wmissing-prototypes]
787 | void __init __weak poking_init(void) { }
| ^~~~~~~~~~~
In file included from include/linux/printk.h:6,
from include/linux/kernel.h:29,
from include/linux/cpumask.h:10,
from include/linux/mm_types_task.h:14,
from include/linux/mm_types.h:5,
from include/linux/buildid.h:5,
from include/linux/module.h:14,
from init/main.c:17:
>> include/linux/init.h:316:27: error: '__setup_str_initcall_blacklist' causes a section type conflict with 'initcall_level_names'
316 | static const char __setup_str_##unique_id[] __initconst \
| ^~~~~~~~~~~~
include/linux/init.h:329:9: note: in expansion of macro '__setup_param'
329 | __setup_param(str, fn, fn, 0)
| ^~~~~~~~~~~~~
init/main.c:1239:1: note: in expansion of macro '__setup'
1239 | __setup("initcall_blacklist=", initcall_blacklist);
| ^~~~~~~
init/main.c:1344:20: note: 'initcall_level_names' was declared here
1344 | static const char *initcall_level_names[] __initconst = {
| ^~~~~~~~~~~~~~~~~~~~


vim +316 include/linux/init.h

^1da177e4c3f41 Linus Torvalds 2005-04-16 308
^1da177e4c3f41 Linus Torvalds 2005-04-16 309 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 310 * Only for really core code. See moduleparam.h for the normal way.
^1da177e4c3f41 Linus Torvalds 2005-04-16 311 *
^1da177e4c3f41 Linus Torvalds 2005-04-16 312 * Force the alignment so the compiler doesn't space elements of the
^1da177e4c3f41 Linus Torvalds 2005-04-16 313 * obs_kernel_param "array" too far apart in .init.setup.
^1da177e4c3f41 Linus Torvalds 2005-04-16 314 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 315 #define __setup_param(str, unique_id, fn, early) \
fd6c3a8dc44329 Jan Beulich 2009-03-12 @316 static const char __setup_str_##unique_id[] __initconst \
fd6c3a8dc44329 Jan Beulich 2009-03-12 317 __aligned(1) = str; \
^1da177e4c3f41 Linus Torvalds 2005-04-16 318 static struct obs_kernel_param __setup_##unique_id \
33def8498fdde1 Joe Perches 2020-10-21 319 __used __section(".init.setup") \
147ad605dc12c5 Johan Hovold 2020-11-23 320 __aligned(__alignof__(struct obs_kernel_param)) \
^1da177e4c3f41 Linus Torvalds 2005-04-16 321 = { __setup_str_##unique_id, fn, early }
^1da177e4c3f41 Linus Torvalds 2005-04-16 322

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

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