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-rw-r--r--fs/btrfs/volumes.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 66e6fc481ecd..37a09ebb34dd 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -834,6 +834,6 @@ int btrfs_verify_dev_extents(struct btrfs_fs_info *fs_info);
bool btrfs_repair_one_zone(struct btrfs_fs_info *fs_info, u64 logical);
bool btrfs_pinned_by_swapfile(struct btrfs_fs_info *fs_info, void *ptr);
-u8 *btrfs_sb_fsid_ptr(struct btrfs_super_block *sb);
+const u8 *btrfs_sb_fsid_ptr(const struct btrfs_super_block *sb);
#endif