Not all architectures support get_user() with a 64-bit argument: ERROR: "__get_user_bad" [fs/f2fs/f2fs.ko] undefined!
Use copy_from_user() here, this will always work. Fixes: d2ae7494d043 ("f2fs: ioctl for removing a range from F2FS") Signed-off-by: Arnd Bergmann <a...@arndb.de> --- fs/f2fs/file.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 998affe31419..465853029b8e 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -3066,7 +3066,8 @@ static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg) if (f2fs_readonly(sbi->sb)) return -EROFS; - if (get_user(block_count, (__u64 __user *)arg)) + if (copy_from_user(&block_count, (void __user *)arg, + sizeof(block_count))) return -EFAULT; ret = f2fs_resize_fs(sbi, block_count); -- 2.20.0