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Date:   Wed, 16 Jun 2021 18:11:18 +0800
From:   kernel test robot <lkp@...el.com>
To:     Gabriel Krisman Bertazi <krisman@...labora.com>, amir73il@...il.com
Cc:     kbuild-all@...ts.01.org, kernel@...labora.com, djwong@...nel.org,
        tytso@....edu, david@...morbit.com, jack@...e.com,
        dhowells@...hat.com, khazhy@...gle.com,
        linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: Re: [PATCH v2 07/14] fsnotify: pass arguments of fsnotify() in
 struct fsnotify_event_info

Hi Gabriel,

I love your patch! Yet something to improve:

[auto build test ERROR on ext3/fsnotify]
[also build test ERROR on linus/master v5.13-rc6 next-20210615]
[cannot apply to ext4/dev]
[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]

url:    https://github.com/0day-ci/linux/commits/Gabriel-Krisman-Bertazi/File-system-wide-monitoring/20210616-155248
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git fsnotify
config: nios2-allnoconfig (attached as .config)
compiler: nios2-linux-gcc (GCC) 9.3.0
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
        # https://github.com/0day-ci/linux/commit/53c00b0ce1aa2f3fd9e16a892cb44df278969b2d
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Gabriel-Krisman-Bertazi/File-system-wide-monitoring/20210616-155248
        git checkout 53c00b0ce1aa2f3fd9e16a892cb44df278969b2d
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nios2 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from fs/kernfs/file.c:16:
   include/linux/fsnotify.h: In function 'fsnotify_name':
>> include/linux/fsnotify.h:33:2: error: implicit declaration of function '__fsnotify'; did you mean 'fsnotify'? [-Werror=implicit-function-declaration]
      33 |  __fsnotify(mask, &(struct fsnotify_event_info) {
         |  ^~~~~~~~~~
         |  fsnotify
   fs/kernfs/file.c: In function 'kernfs_notify_workfn':
>> fs/kernfs/file.c:887:7: error: passing argument 2 of 'fsnotify' from incompatible pointer type [-Werror=incompatible-pointer-types]
     887 |       inode, FSNOTIFY_EVENT_INODE,
         |       ^~~~~
         |       |
         |       struct inode *
   In file included from include/linux/fsnotify.h:15,
                    from fs/kernfs/file.c:16:
   include/linux/fsnotify_backend.h:636:41: note: expected 'const struct fsnotify_event_info *' but argument is of type 'struct inode *'
     636 |       const struct fsnotify_event_info *event_info)
         |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
>> fs/kernfs/file.c:886:5: error: too many arguments to function 'fsnotify'
     886 |     fsnotify(FS_MODIFY | FS_EVENT_ON_CHILD,
         |     ^~~~~~~~
   In file included from include/linux/fsnotify.h:15,
                    from fs/kernfs/file.c:16:
   include/linux/fsnotify_backend.h:635:19: note: declared here
     635 | static inline int fsnotify(__u32 mask,
         |                   ^~~~~~~~
   cc1: some warnings being treated as errors


vim +33 include/linux/fsnotify.h

    19	
    20	/*
    21	 * Notify this @dir inode about a change in a child directory entry.
    22	 * The directory entry may have turned positive or negative or its inode may
    23	 * have changed (i.e. renamed over).
    24	 *
    25	 * Unlike fsnotify_parent(), the event will be reported regardless of the
    26	 * FS_EVENT_ON_CHILD mask on the parent inode and will not be reported if only
    27	 * the child is interested and not the parent.
    28	 */
    29	static inline void fsnotify_name(struct inode *dir, __u32 mask,
    30					 struct inode *child,
    31					 const struct qstr *name, u32 cookie)
    32	{
  > 33		__fsnotify(mask, &(struct fsnotify_event_info) {
    34				.data = child, .data_type = FSNOTIFY_EVENT_INODE,
    35				.dir = dir, .name = name, .cookie = cookie,
    36				});
    37	}
    38	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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