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 errors:

[auto build test ERROR on mszeredi-fuse/for-next]
[also build test ERROR 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: hexagon-randconfig-001-20240907 (https://download.01.org/0day-ci/archive/20240907/202409070557.u6rI9J9K-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 05f5a91d00b02f4369f46d076411c700755ae041)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240907/202409070557.u6rI9J9K-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/202409070557.u6rI9J9K-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from fs/fuse/sysctl.c:9:
   In file included from fs/fuse/fuse_i.h:22:
   In file included from include/linux/mm.h:2228:
   include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     514 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   In file included from fs/fuse/sysctl.c:9:
   In file included from fs/fuse/fuse_i.h:23:
   In file included from include/linux/backing-dev.h:16:
   In file included from include/linux/writeback.h:13:
   In file included from include/linux/blk_types.h:10:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     548 |         val = __raw_readb(PCI_IOBASE + addr);
         |                           ~~~~~~~~~~ ^
   include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     561 |         val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
      37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
         |                                                   ^
   In file included from fs/fuse/sysctl.c:9:
   In file included from fs/fuse/fuse_i.h:23:
   In file included from include/linux/backing-dev.h:16:
   In file included from include/linux/writeback.h:13:
   In file included from include/linux/blk_types.h:10:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     574 |         val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
      35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
         |                                                   ^
   In file included from fs/fuse/sysctl.c:9:
   In file included from fs/fuse/fuse_i.h:23:
   In file included from include/linux/backing-dev.h:16:
   In file included from include/linux/writeback.h:13:
   In file included from include/linux/blk_types.h:10:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     585 |         __raw_writeb(value, PCI_IOBASE + addr);
         |                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     595 |         __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     605 |         __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   fs/fuse/sysctl.c:28:26: error: too many arguments provided to function-like macro invocation
      28 | int fuse_sysctl_register(void)
         |                          ^
   fs/fuse/fuse_i.h:1473:9: note: macro 'fuse_sysctl_register' defined here
    1473 | #define fuse_sysctl_register()          (0)
         |         ^
   fs/fuse/sysctl.c:28:25: error: expected ';' after top level declarator
      28 | int fuse_sysctl_register(void)
         |                         ^
         |                         ;
   fs/fuse/sysctl.c:36:29: error: too many arguments provided to function-like macro invocation
      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:36:6: error: variable has incomplete type 'void'
      36 | void fuse_sysctl_unregister(void)
         |      ^
   fs/fuse/sysctl.c:36:28: error: expected ';' after top level declarator
      36 | void fuse_sysctl_unregister(void)
         |                            ^
         |                            ;
   7 warnings and 5 errors generated.


vim +/void +36 fs/fuse/sysctl.c

    35	
  > 36	void fuse_sysctl_unregister(void)

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