Re: [PATCH v2 RESEND] fuse: Enable dynamic configuration of fuse max pages limit (FUSE_MAX_MAX_PAGES)

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

Hi Joanne,

kernel test robot noticed the following build warnings:

[auto build test WARNING on mszeredi-fuse/for-next]
[also build test WARNING on linus/master v6.11-rc6 next-20240906]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Joanne-Koong/fuse-Enable-dynamic-configuration-of-fuse-max-pages-limit-FUSE_MAX_MAX_PAGES/20240906-014722
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git for-next
patch link:    https://lore.kernel.org/r/20240905174541.392785-1-joannelkoong%40gmail.com
patch subject: [PATCH v2 RESEND] fuse: Enable dynamic configuration of fuse max pages limit (FUSE_MAX_MAX_PAGES)
config: arm-randconfig-003-20240907 (https://download.01.org/0day-ci/archive/20240907/202409070207.bAwolF9v-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240907/202409070207.bAwolF9v-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/202409070207.bAwolF9v-lkp@intel.com/

All warnings (new ones prefixed by >>):

   fs/fuse/sysctl.c:28:30: error: macro "fuse_sysctl_register" passed 1 arguments, but takes just 0
      28 | int fuse_sysctl_register(void)
         |                              ^
   In file included from fs/fuse/sysctl.c:9:
   fs/fuse/fuse_i.h:1473:9: note: macro "fuse_sysctl_register" defined here
    1473 | #define fuse_sysctl_register()          (0)
         |         ^~~~~~~~~~~~~~~~~~~~
   fs/fuse/sysctl.c:29:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
      29 | {
         | ^
   fs/fuse/sysctl.c:36:33: error: macro "fuse_sysctl_unregister" passed 1 arguments, but takes just 0
      36 | void fuse_sysctl_unregister(void)
         |                                 ^
   fs/fuse/fuse_i.h:1474:9: note: macro "fuse_sysctl_unregister" defined here
    1474 | #define fuse_sysctl_unregister()        do { } while (0)
         |         ^~~~~~~~~~~~~~~~~~~~~~
   fs/fuse/sysctl.c:37:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
      37 | {
         | ^
>> fs/fuse/sysctl.c:16:25: warning: 'fuse_sysctl_table' defined but not used [-Wunused-variable]
      16 | static struct ctl_table fuse_sysctl_table[] = {
         |                         ^~~~~~~~~~~~~~~~~
>> fs/fuse/sysctl.c:11:33: warning: 'fuse_table_header' defined but not used [-Wunused-variable]
      11 | static struct ctl_table_header *fuse_table_header;
         |                                 ^~~~~~~~~~~~~~~~~


vim +/fuse_sysctl_table +16 fs/fuse/sysctl.c

    10	
  > 11	static struct ctl_table_header *fuse_table_header;
    12	
    13	/* Bound by fuse_init_out max_pages, which is a u16 */
    14	static unsigned int sysctl_fuse_max_pages_limit = 65535;
    15	
  > 16	static struct ctl_table fuse_sysctl_table[] = {
    17		{
    18			.procname	= "max_pages_limit",
    19			.data		= &fuse_max_pages_limit,
    20			.maxlen		= sizeof(fuse_max_pages_limit),
    21			.mode		= 0644,
    22			.proc_handler	= proc_douintvec_minmax,
    23			.extra1		= SYSCTL_ONE,
    24			.extra2		= &sysctl_fuse_max_pages_limit,
    25		},
    26	};
    27	

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