[linux-next:master 5087/5882] drivers/perf/riscv_pmu_sbi.c:1008:35: error: initialization of 'int (*)(const struct ctl_table *, int, void *, size_t *, loff_t *)' {aka 'int (*)(const struct ctl_table *, int, void *, unsigned int *, long long int *)'} from incompatible pointer type 'i...

[linux-next:master 5087/5882] drivers/perf/riscv_pmu_sbi.c:1008:35: error: initialization of 'int (*)(const struct ctl_table *, int, void *, size_t *, loff_t *)' {aka 'int (*)(const struct ctl_table *, int, void *, unsigned int *, long long int *)'} from incompatible pointer type 'i...

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   8e00ce02066e8f6f1ad5eab49a2ede7bf7a5ef64
commit: c8be9e66ca1eb71c694537e20d00533db48650a9 [5087/5882] sysctl: treewide: constify the ctl_table argument of handlers
config: riscv-rv32_defconfig (https://download.01.org/0day-ci/archive/20231207/202312072017.DQIMIMxq-lkp@intel.com/config)
compiler: riscv32-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231207/202312072017.DQIMIMxq-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312072017.DQIMIMxq-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/perf/riscv_pmu_sbi.c:1008:35: error: initialization of 'int (*)(const struct ctl_table *, int,  void *, size_t *, loff_t *)' {aka 'int (*)(const struct ctl_table *, int,  void *, unsigned int *, long long int *)'} from incompatible pointer type 'int (*)(struct ctl_table *, int,  void *, size_t *, loff_t *)' {aka 'int (*)(struct ctl_table *, int,  void *, unsigned int *, long long int *)'} [-Werror=incompatible-pointer-types]
    1008 |                 .proc_handler   = riscv_pmu_proc_user_access_handler,
         |                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/perf/riscv_pmu_sbi.c:1008:35: note: (near initialization for 'sbi_pmu_sysctl_table[0].proc_handler')
   cc1: some warnings being treated as errors


vim +1008 drivers/perf/riscv_pmu_sbi.c

cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1001  
cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1002  static struct ctl_table sbi_pmu_sysctl_table[] = {
cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1003  	{
cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1004  		.procname       = "perf_user_access",
cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1005  		.data		= &sysctl_perf_user_access,
cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1006  		.maxlen		= sizeof(unsigned int),
cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1007  		.mode           = 0644,
cc4c07c89aada1 Alexandre Ghiti 2023-08-02 @1008  		.proc_handler	= riscv_pmu_proc_user_access_handler,
cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1009  		.extra1		= SYSCTL_ZERO,
cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1010  		.extra2		= SYSCTL_TWO,
cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1011  	},
cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1012  	{ }
cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1013  };
cc4c07c89aada1 Alexandre Ghiti 2023-08-02  1014  

:::::: The code at line 1008 was first introduced by commit
:::::: cc4c07c89aada16229084eeb93895c95b7eabaa3 drivers: perf: Implement perf event mmap support in the SBI backend

:::::: TO: Alexandre Ghiti <alexghiti@rivosinc.com>
:::::: CC: Palmer Dabbelt <palmer@rivosinc.com>

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