Re: [PATCH 4/4] f2fs: Use module_{subinit, subeixt} helper macros

kernel test robot
2024-07-23T21:31:57Z

Hi Youling,

kernel test robot noticed the following build warnings:

[auto build test WARNING on kdave/for-next]
[also build test WARNING on linus/master next-20240723]
[cannot apply to jaegeuk-f2fs/dev-test jaegeuk-f2fs/dev soc/for-next v6.10]
[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/Youling-Tang/module-Add-module_subinit-_noexit-and-module_subeixt-helper-macros/20240723-164434
base: https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-next
patch link: https://lore.kernel.org/r/20240723083239.41533-5-youling.tang%40linux.dev
patch subject: [PATCH 4/4] f2fs: Use module_{subinit, subeixt} helper macros
config: arm64-randconfig-002-20240724 (https://download.01.org/0day-ci/archive/20240724/202407240502.xqotqBQ1-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240724/202407240502.xqotqBQ1-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/202407240502.xqotqBQ1-lkp@intel.com/

All warnings (new ones prefixed by >>):

In file included from fs/f2fs/dir.c:13:
fs/f2fs/f2fs.h: In function 'f2fs_create_root_stats':
>> fs/f2fs/f2fs.h:4131:1: warning: no return statement in function returning non-void [-Wreturn-type]
4131 | static inline int __init f2fs_create_root_stats(void) { }
| ^~~~~~
--
In file included from fs/f2fs/data.c:25:
fs/f2fs/f2fs.h: In function 'f2fs_create_root_stats':
>> fs/f2fs/f2fs.h:4131:1: warning: no return statement in function returning non-void [-Wreturn-type]
4131 | static inline int __init f2fs_create_root_stats(void) { }
| ^~~~~~
fs/f2fs/data.c: In function 'f2fs_mpage_readpages':
fs/f2fs/data.c:2373:17: warning: variable 'index' set but not used [-Wunused-but-set-variable]
2373 | pgoff_t index;
| ^~~~~
--
aarch64-linux-ld: warning: orphan section `.subexitcall.exit' from `fs/ext4/super.o' being placed in section `.subexitcall.exit'
aarch64-linux-ld: warning: orphan section `.subinitcall.init' from `fs/ext4/super.o' being placed in section `.subinitcall.init'
>> aarch64-linux-ld: warning: orphan section `.subexitcall.exit' from `fs/f2fs/super.o' being placed in section `.subexitcall.exit'
>> aarch64-linux-ld: warning: orphan section `.subinitcall.init' from `fs/f2fs/super.o' being placed in section `.subinitcall.init'
aarch64-linux-ld: warning: orphan section `.subexitcall.exit' from `fs/ext4/super.o' being placed in section `.subexitcall.exit'
aarch64-linux-ld: warning: orphan section `.subinitcall.init' from `fs/ext4/super.o' being placed in section `.subinitcall.init'
>> aarch64-linux-ld: warning: orphan section `.subexitcall.exit' from `fs/f2fs/super.o' being placed in section `.subexitcall.exit'
>> aarch64-linux-ld: warning: orphan section `.subinitcall.init' from `fs/f2fs/super.o' being placed in section `.subinitcall.init'
aarch64-linux-ld: warning: orphan section `.subexitcall.exit' from `fs/ext4/super.o' being placed in section `.subexitcall.exit'
aarch64-linux-ld: warning: orphan section `.subinitcall.init' from `fs/ext4/super.o' being placed in section `.subinitcall.init'
>> aarch64-linux-ld: warning: orphan section `.subexitcall.exit' from `fs/f2fs/super.o' being placed in section `.subexitcall.exit'
>> aarch64-linux-ld: warning: orphan section `.subinitcall.init' from `fs/f2fs/super.o' being placed in section `.subinitcall.init'

vim +4131 fs/f2fs/f2fs.h

4128
4129 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
4130 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
> 4131 static inline int __init f2fs_create_root_stats(void) { }
4132 static inline void f2fs_destroy_root_stats(void) { }
4133 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
4134 #endif
4135

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