Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/jhash.h b/include/linux/jhash.h
index 8037850..ba2f6a9 100644
--- a/include/linux/jhash.h
+++ b/include/linux/jhash.h
@@ -17,7 +17,7 @@
  * if SELF_TEST is defined.  You can use this free for any purpose.  It's in
  * the public domain.  It has no warranty.
  *
- * Copyright (C) 2009-2010 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu)
+ * Copyright (C) 2009-2010 Jozsef Kadlecsik (kadlec@netfilter.org)
  *
  * I've modified Bob's hash to be useful in the Linux kernel, and
  * any bugs present are my fault.