Use an https:// link for LWN

lkmpg.tex

@@ -1076,7 +1076,7 @@ Of course, you can still use the same way as in the previous example.
 If you want more information, you can read this web page:
 
 \begin{itemize}
-  \item \url{http://lwn.net/Articles/22355/}
+  \item \url{https://lwn.net/Articles/22355/}
   \item \url{https://kernelnewbies.org/Documents/SeqFileHowTo}
 \end{itemize}