tree f9f364fc05a05e0e5a8eaf81df683186460d304b
parent 3e913eebdfbb563720d39ea762555f1370f309ed
author Gustavo A. R. Silva <gustavo@embeddedor.com> 1551116092 -0600
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1551180644 +0100

tty: hvc_xen: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

This patch fixes the following warning:

drivers/tty/hvc/hvc_xen.c: In function ‘xencons_backend_changed’:
drivers/tty/hvc/hvc_xen.c:493:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (dev->state == XenbusStateClosed)
      ^
drivers/tty/hvc/hvc_xen.c:496:2: note: here
  case XenbusStateClosing:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

Notice that, in this particular case, the code comment is modified
in accordance with what GCC is expecting to find.

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>