tree:   https://github.com/ammarfaizi2/linux-block brauner/linux/fs.acl.rework
head:   baac47dc33766dfb02917cba69b698f1a9fd1f84
commit: 788c4cf7d28228acf9be6fd156ee91574a22882d [24/30] xattr: use posix acl api
config: arm-mv78xx0_defconfig
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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 arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/ammarfaizi2/linux-block/commit/788c4cf7d28228acf9be6fd156ee91574a22882d
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block brauner/linux/fs.acl.rework
        git checkout 788c4cf7d28228acf9be6fd156ee91574a22882d
        # 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=arm SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   In file included from block/bdev.c:30:
>> block/../fs/internal.h:243:5: warning: no previous prototype for function 'do_set_acl' [-Wmissing-prototypes]
   int do_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
       ^
   block/../fs/internal.h:243:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int do_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
   ^
   static 
>> block/../fs/internal.h:248:9: warning: no previous prototype for function 'do_get_acl' [-Wmissing-prototypes]
   ssize_t do_get_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
           ^
   block/../fs/internal.h:248:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   ssize_t do_get_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
   ^
   static 
   2 warnings generated.
--
   In file included from fs/iomap/buffered-io.c:22:
>> fs/iomap/../internal.h:243:5: warning: no previous prototype for function 'do_set_acl' [-Wmissing-prototypes]
   int do_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
       ^
   fs/iomap/../internal.h:243:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int do_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
   ^
   static 
>> fs/iomap/../internal.h:248:9: warning: no previous prototype for function 'do_get_acl' [-Wmissing-prototypes]
   ssize_t do_get_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
           ^
   fs/iomap/../internal.h:248:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   ssize_t do_get_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
   ^
   static 
   2 warnings generated.


vim +/do_set_acl +243 block/../fs/internal.h

   236	
   237	#ifdef CONFIG_FS_POSIX_ACL
   238	int do_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
   239		       const char *acl_name, const void *kvalue, size_t size);
   240	ssize_t do_get_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
   241			   const char *acl_name, void *kvalue, size_t size);
   242	#else
 > 243	int do_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
   244		       const char *acl_name, const void *kvalue, size_t size)
   245	{
   246		return -EOPNOTSUPP;
   247	}
 > 248	ssize_t do_get_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
   249			   const char *acl_name, void *kvalue, size_t size)
   250	{
   251		return -EOPNOTSUPP;
   252	}
   253	#endif
   254	

-- 
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