This patch should resolve the following error reported by kbuild test robot.

All error/warnings:

   In file included from fs/f2fs/dir.c:13:0:
   >> fs/f2fs/f2fs.h:435:17: error: field 's_kobj' has incomplete type
        struct kobject s_kobj;

The failure was caused by missing the kobject header file in dir.c.
So, this patch move the header file to the right location, f2fs.h.

CC: Namjae Jeon <>
Signed-off-by: Jaegeuk Kim <>
 fs/f2fs/f2fs.h  | 1 +
 fs/f2fs/super.c | 1 -
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 13db10b..d8e386ce 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -17,6 +17,7 @@
 #include <linux/slab.h>
 #include <linux/crc32.h>
 #include <linux/magic.h>
+#include <linux/kobject.h>
  * For mount options
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 94c0e20..66d1ec1 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -23,7 +23,6 @@
 #include <linux/exportfs.h>
 #include <linux/blkdev.h>
 #include <linux/f2fs_fs.h>
-#include <linux/kobject.h>
 #include <linux/sysfs.h>
 #include "f2fs.h"

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