There is lot of headers which we do not need in this file. Delete them and add what we really need. Here is list which identify why we need this header. <linux/kernel.h> // min() <linux/slab.h> // kzalloc() <linux/stddef.h> // offsetof() <linux/string.h> // memcpy(), memset() <linux/types.h> // u8, size_t, etc. "debug.h" // PtrOffset() Signed-off-by: Kari Argillander <kari.argillander@xxxxxxxxx> --- fs/ntfs3/lznt.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/ntfs3/lznt.c b/fs/ntfs3/lznt.c index 3acf0d9f0b15..0bd3dd61d784 100644 --- a/fs/ntfs3/lznt.c +++ b/fs/ntfs3/lznt.c @@ -5,13 +5,13 @@ * */ -#include <linux/blkdev.h> -#include <linux/buffer_head.h> -#include <linux/fs.h> -#include <linux/nls.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/stddef.h> +#include <linux/string.h> +#include <linux/types.h> #include "debug.h" -#include "ntfs.h" #include "ntfs_fs.h" // clang-format off -- 2.25.1