Merge tag 'docs-4.12-2' of git://git.lwn.net/linux

Pull more documentation updates from Jonathan Corbet:
 "Connect the newly RST-formatted documentation to the rest; this had to
  wait until the input pull was done. There's also a few small fixes
  that wandered in"

* tag 'docs-4.12-2' of git://git.lwn.net/linux:
  doc: replace FTP URL to kernel.org with HTTPS one
  docs: update references to the device io book
  Documentation: earlycon: fix Marvell Armada 3700 UART name
  docs-rst: add input docs at main index and use kernel-figure

Documentation/memory-barriers.txt

@@ -2373,7 +2373,7 @@ is performed:
 					spin_unlock(Q);
 
 
-See Documentation/DocBook/deviceiobook.tmpl for more information.
+See Documentation/driver-api/device-io.rst for more information.
 
 
 =================================
@@ -2614,7 +2614,7 @@ might be needed:
      relaxed memory access properties, then _mandatory_ memory barriers are
      required to enforce ordering.
 
-See Documentation/DocBook/deviceiobook.tmpl for more information.
+See Documentation/driver-api/device-io.rst for more information.
 
 
 INTERRUPTS