Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/rdma/ib.h b/include/rdma/ib.h
index 4f385ec..fe2fc9e 100644
--- a/include/rdma/ib.h
+++ b/include/rdma/ib.h
@@ -36,6 +36,8 @@
 #include <linux/types.h>
 #include <linux/sched.h>
 #include <linux/cred.h>
+#include <linux/uaccess.h>
+#include <linux/fs.h>
 
 struct ib_addr {
 	union {