[PATCH] adjust hard-lockup related Kconfig options

From: Jan Beulich
Date: Mon Sep 10 2012 - 07:54:04 EST


The main option should not appear in the resulting .config when the
dependencies aren't met (i.e. use "depends on" rather than directly
setting the default from the combined dependency values).

The sub-options should depend on the main option rather than a more
generic higher level one.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Cc: Don Zickus <dzickus@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>

---
lib/Kconfig.debug | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

--- 3.6-rc5/lib/Kconfig.debug
+++ 3.6-rc5-kconfig-cleanup-hardlockup/lib/Kconfig.debug
@@ -196,12 +196,13 @@ config LOCKUP_DETECTOR
thresholds can be controlled through the sysctl watchdog_thresh.

config HARDLOCKUP_DETECTOR
- def_bool LOCKUP_DETECTOR && PERF_EVENTS && HAVE_PERF_EVENTS_NMI && \
- !HAVE_NMI_WATCHDOG
+ def_bool y
+ depends on LOCKUP_DETECTOR && !HAVE_NMI_WATCHDOG
+ depends on PERF_EVENTS && HAVE_PERF_EVENTS_NMI

config BOOTPARAM_HARDLOCKUP_PANIC
bool "Panic (Reboot) On Hard Lockups"
- depends on LOCKUP_DETECTOR
+ depends on HARDLOCKUP_DETECTOR
help
Say Y here to enable the kernel to panic on "hard lockups",
which are bugs that cause the kernel to loop in kernel
@@ -212,7 +213,7 @@ config BOOTPARAM_HARDLOCKUP_PANIC

config BOOTPARAM_HARDLOCKUP_PANIC_VALUE
int
- depends on LOCKUP_DETECTOR
+ depends on HARDLOCKUP_DETECTOR
range 0 1
default 0 if !BOOTPARAM_HARDLOCKUP_PANIC
default 1 if BOOTPARAM_HARDLOCKUP_PANIC



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