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-rw-r--r--fs/btrfs/ioctl.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h
index 2c5dc25ec670..19cd26b0244a 100644
--- a/fs/btrfs/ioctl.h
+++ b/fs/btrfs/ioctl.h
@@ -19,7 +19,7 @@ int btrfs_fileattr_set(struct mnt_idmap *idmap,
struct dentry *dentry, struct fileattr *fa);
int btrfs_ioctl_get_supported_features(void __user *arg);
void btrfs_sync_inode_flags_to_i_flags(struct inode *inode);
-int __pure btrfs_is_empty_uuid(u8 *uuid);
+int __pure btrfs_is_empty_uuid(const u8 *uuid);
void btrfs_update_ioctl_balance_args(struct btrfs_fs_info *fs_info,
struct btrfs_ioctl_balance_args *bargs);