* [linux-next:master 6791/7915] arch/mips/kernel/mips-mt.c:246:1: error: incompatible function pointer types initializing 'initcall_t' (aka 'int (*)(void)') with an expression of type 'void (struct maple_tree *)'
@ 2022-02-24 8:41 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-02-24 8:41 UTC (permalink / raw)
To: Liam R. Howlett
Cc: llvm, kbuild-all, Linux Memory Management List, Matthew Wilcox (Oracle)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: d4a0ae62a277377de396850ed4b709b6bd9b7326
commit: 37f4270132af31dd08a209799d420f72bfddb49c [6791/7915] mm: Start tracking VMAs with maple tree
config: mips-maltaup_defconfig (https://download.01.org/0day-ci/archive/20220224/202202241635.ib4YRtz7-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
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/next/linux-next.git/commit/?id=37f4270132af31dd08a209799d420f72bfddb49c
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout 37f4270132af31dd08a209799d420f72bfddb49c
# 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=mips SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
arch/mips/kernel/mips-mt.c:50:6: warning: no previous prototype for function 'mips_mt_regdump' [-Wmissing-prototypes]
void mips_mt_regdump(unsigned long mvpctl)
^
arch/mips/kernel/mips-mt.c:50:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void mips_mt_regdump(unsigned long mvpctl)
^
static
arch/mips/kernel/mips-mt.c:159:6: warning: no previous prototype for function 'mips_mt_set_cpuoptions' [-Wmissing-prototypes]
void mips_mt_set_cpuoptions(void)
^
arch/mips/kernel/mips-mt.c:159:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void mips_mt_set_cpuoptions(void)
^
static
>> arch/mips/kernel/mips-mt.c:233:19: error: conflicting types for 'mt_init'
static int __init mt_init(void)
^
include/linux/maple_tree.h:589:20: note: previous definition is here
static inline void mt_init(struct maple_tree *mt)
^
>> arch/mips/kernel/mips-mt.c:246:1: error: incompatible function pointer types initializing 'initcall_t' (aka 'int (*)(void)') with an expression of type 'void (struct maple_tree *)' [-Werror,-Wincompatible-function-pointer-types]
subsys_initcall(mt_init);
^ ~~~~~~~
include/linux/init.h:286:30: note: expanded from macro 'subsys_initcall'
#define subsys_initcall(fn) __define_initcall(fn, 4)
^ ~~
include/linux/init.h:262:35: note: expanded from macro '__define_initcall'
#define __define_initcall(fn, id) ___define_initcall(fn, id, .initcall##id)
^ ~~
include/linux/init.h:260:2: note: expanded from macro '___define_initcall'
__unique_initcall(fn, id, __sec, __initcall_id(fn))
^ ~~
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:59:23: note: expanded from macro '___PASTE'
#define ___PASTE(a,b) a##b
^
<scratch space>:291:1: note: expanded from here
__initcall__kmod_mips_mt__393_246_mt_init4
^
include/linux/init.h:249:20: note: expanded from macro '____define_initcall'
static initcall_t __name __used \
^
2 warnings and 2 errors generated.
vim +246 arch/mips/kernel/mips-mt.c
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 232
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 @233 static int __init mt_init(void)
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 234 {
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 235 struct class *mtc;
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 236
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 237 mtc = class_create(THIS_MODULE, "mt");
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 238 if (IS_ERR(mtc))
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 239 return PTR_ERR(mtc);
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 240
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 241 mt_class = mtc;
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 242
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 243 return 0;
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 244 }
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 245
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 @246 subsys_initcall(mt_init);
:::::: The code at line 246 was first introduced by commit
:::::: 27a3bbaf4b1e23a3afbae4d9f72b51a36859f74a [MIPS] VPE: Sprinkle device model code into code to make udev happier.
:::::: TO: Ralf Baechle <ralf@linux-mips.org>
:::::: CC: Ralf Baechle <ralf@linux-mips.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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