Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index 6b0ddb2..1170922 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -376,7 +376,6 @@
 		       int to, int to_bytes, short *snum012, int flow)
 {
 	int i;
-	int cur_free;
 	int units;
 	struct virtual_node *vn = tb->tb_vn;
 	int total_node_size, max_node_size, current_item_size;
@@ -438,7 +437,6 @@
 	/* leaf level */
 	needed_nodes = 1;
 	total_node_size = 0;
-	cur_free = max_node_size;
 
 	/* start from 'from'-th item */
 	start_item = from;
@@ -1734,14 +1732,12 @@
 	 * and Fh is its father.
 	 */
 	struct buffer_head *Sh, *Fh;
-	int maxsize, ret;
+	int ret;
 	int lfree, rfree /* free space in L and R */ ;
 
 	Sh = PATH_H_PBUFFER(tb->tb_path, h);
 	Fh = PATH_H_PPARENT(tb->tb_path, h);
 
-	maxsize = MAX_CHILD_SIZE(Sh);
-
 	/*
 	 * using tb->insert_size[h], which is negative in this case,
 	 * create_virtual_node calculates: