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Subject[tip:locking/core] locking/lockdep: Make CONFIG_LOCKDEP_CROSSRELEASE part of CONFIG_PROVE_LOCKING
Commit-ID:  d0541b0fa64b36665d6261079974a26943c75009
Gitweb: http://git.kernel.org/tip/d0541b0fa64b36665d6261079974a26943c75009
Author: Byungchul Park <byungchul.park@lge.com>
AuthorDate: Thu, 17 Aug 2017 17:57:39 +0900
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Thu, 17 Aug 2017 11:38:54 +0200

locking/lockdep: Make CONFIG_LOCKDEP_CROSSRELEASE part of CONFIG_PROVE_LOCKING

Crossrelease support added the CONFIG_LOCKDEP_CROSSRELEASE and CONFIG_LOCKDEP_COMPLETE
options. It makes little sense to enable them when PROVE_LOCKING is disabled.

Make them non-interative options and part of PROVE_LOCKING to simplify the UI.

Signed-off-by: Byungchul Park <byungchul.park@lge.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel-team@lge.com
Link: http://lkml.kernel.org/r/1502960261-16206-1-git-send-email-byungchul.park@lge.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
lib/Kconfig.debug | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ebd40d3..1ad7f1b 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1081,6 +1081,8 @@ config PROVE_LOCKING
select DEBUG_MUTEXES
select DEBUG_RT_MUTEXES if RT_MUTEXES
select DEBUG_LOCK_ALLOC
+ select LOCKDEP_CROSSRELEASE
+ select LOCKDEP_COMPLETE
select TRACE_IRQFLAGS
default n
help
@@ -1152,8 +1154,6 @@ config LOCK_STAT

config LOCKDEP_CROSSRELEASE
bool "Lock debugging: make lockdep work for crosslocks"
- depends on PROVE_LOCKING
- default n
help
This makes lockdep work for crosslock which is a lock allowed to
be released in a different context from the acquisition context.
@@ -1164,9 +1164,6 @@ config LOCKDEP_CROSSRELEASE

config LOCKDEP_COMPLETE
bool "Lock debugging: allow completions to use deadlock detector"
- depends on PROVE_LOCKING
- select LOCKDEP_CROSSRELEASE
- default n
help
A deadlock caused by wait_for_completion() and complete() can be
detected by lockdep using crossrelease feature.
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