kprobes: Hide CONFIG_OPTPROBES and set if arch supports optimized kprobes

Hide CONFIG_OPTPROBES and set if the arch supports optimized
kprobes (IOW, HAVE_OPTPROBES=y), since this option doesn't
change the major behavior of kprobes, and workarounds for minor
changes are documented.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Dieter Ries <mail@dieterries.net>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20100315170054.31593.3153.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 7 deletions

diff --git a/arch/Kconfig b/arch/Kconfig
index e5eb1337a537..f06010fb4838 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -42,15 +42,10 @@ config KPROBES
           If in doubt, say "N".
 
 config OPTPROBES
-        bool "Kprobes jump optimization support (EXPERIMENTAL)"
-        default y
-        depends on KPROBES
+        def_bool y
+        depends on KPROBES && HAVE_OPTPROBES
         depends on !PREEMPT
-        depends on HAVE_OPTPROBES
         select KALLSYMS_ALL
-        help
-          This option will allow kprobes to optimize breakpoint to
-          a jump for reducing its overhead.
 
 config HAVE_EFFICIENT_UNALIGNED_ACCESS
         bool