debug: Make CONFIG_EXPERT select CONFIG_DEBUG_KERNEL to unhide debug options

Several debugging options currently default to y, such as
CONFIG_DEBUG_BUGVERBOSE and CONFIG_DEBUG_RODATA.  Embedded users
might want to turn those options off to save space; however,
turning them off requires turning on CONFIG_DEBUG_KERNEL to
unhide them.  Since CONFIG_DEBUG_KERNEL exists specifically to
unhide debugging options, and CONFIG_EXPERT exists specifically
to unhide options potentially needed by experts and/or embedded
users, make CONFIG_EXPERT automatically imply
CONFIG_DEBUG_KERNEL.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20110606012358.GA1909@leaf
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/init/Kconfig b/init/Kconfig
index ebafac4231eeff15883809419e6df0c211b90e1a..14370d3fdf4d59401819a850ad2b4598972691a2 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -909,6 +909,8 @@ config ANON_INODES
 
 menuconfig EXPERT
        bool "Configure standard kernel features (expert users)"
+       # Unhide debug options, to make the on-by-default options visible
+       select DEBUG_KERNEL
        help
          This option allows certain base kernel options and settings
           to be disabled or tweaked. This is for specialized