[jpoimboe:static-call-null-3 2/5] arch/powerpc/kernel/irq.c:223:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jpoimboe/linux.git static-call-null-3
head:   432e4844ba65840af4a24f5e3f561aead867f6e7
commit: 999f0b7f8056dcb51476a6515a8601c9d6374aa2 [2/5] static_call: Make NULL static calls return 0
config: powerpc-randconfig-r001-20230310 (https://download.01.org/0day-ci/archive/20230311/202303110734.cvRB3UtN-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
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 powerpc cross compiling tool for clang build
        # apt-get install binutils-powerpc-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/jpoimboe/linux.git/commit/?id=999f0b7f8056dcb51476a6515a8601c9d6374aa2
        git remote add jpoimboe https://git.kernel.org/pub/scm/linux/kernel/git/jpoimboe/linux.git
        git fetch --no-tags jpoimboe static-call-null-3
        git checkout 999f0b7f8056dcb51476a6515a8601c9d6374aa2
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/kernel/ kernel/events/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303110734.cvRB3UtN-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/powerpc/kernel/irq.c:223:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
   DEFINE_STATIC_CALL_RET0(ppc_get_irq, *ppc_md.get_irq);
   ^
   include/linux/static_call.h:212:33: note: expanded from macro 'DEFINE_STATIC_CALL_RET0'
   #define DEFINE_STATIC_CALL_RET0 DEFINE_STATIC_CALL_NULL
                                   ^
   include/linux/static_call.h:210:2: note: expanded from macro 'DEFINE_STATIC_CALL_NULL'
           ARCH_DEFINE_STATIC_CALL_NULL_TRAMP(name)
           ^
>> arch/powerpc/kernel/irq.c:223:25: error: a parameter list without types is only allowed in a function definition
   DEFINE_STATIC_CALL_RET0(ppc_get_irq, *ppc_md.get_irq);
                           ^
   include/linux/static_call.h:212:33: note: expanded from macro 'DEFINE_STATIC_CALL_RET0'
   #define DEFINE_STATIC_CALL_RET0 DEFINE_STATIC_CALL_NULL
                                   ^
   2 errors generated.
--
>> kernel/events/core.c:13769:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
   DEFINE_STATIC_CALL_RET0(perf_snapshot_branch_stack, perf_snapshot_branch_stack_t);
   ^
   include/linux/static_call.h:212:33: note: expanded from macro 'DEFINE_STATIC_CALL_RET0'
   #define DEFINE_STATIC_CALL_RET0 DEFINE_STATIC_CALL_NULL
                                   ^
   include/linux/static_call.h:210:2: note: expanded from macro 'DEFINE_STATIC_CALL_NULL'
           ARCH_DEFINE_STATIC_CALL_NULL_TRAMP(name)
           ^
>> kernel/events/core.c:13769:25: error: a parameter list without types is only allowed in a function definition
   DEFINE_STATIC_CALL_RET0(perf_snapshot_branch_stack, perf_snapshot_branch_stack_t);
                           ^
   include/linux/static_call.h:212:33: note: expanded from macro 'DEFINE_STATIC_CALL_RET0'
   #define DEFINE_STATIC_CALL_RET0 DEFINE_STATIC_CALL_NULL
                                   ^
   2 errors generated.


vim +/int +223 arch/powerpc/kernel/irq.c

48cf12d88969bd Christophe Leroy 2021-03-19  222  
e59596a2d6a75e Christophe Leroy 2022-03-11 @223  DEFINE_STATIC_CALL_RET0(ppc_get_irq, *ppc_md.get_irq);
e59596a2d6a75e Christophe Leroy 2022-03-11  224  

:::::: The code at line 223 was first introduced by commit
:::::: e59596a2d6a75ea3deb60698b95942aaf03681f5 powerpc: Use static call for get_irq()

:::::: TO: Christophe Leroy <christophe.leroy@csgroup.eu>
:::::: CC: Michael Ellerman <mpe@ellerman.id.au>

-- 
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https://github.com/intel/lkp-tests