[PATCH tip/core/rcu 04/15] lockdep: Cleanup PREEMPT_COUNT leftovers

paulmck
2020-09-28T23:31:16Z

From: Thomas Gleixner <tglx@linutronix.de>

CONFIG_PREEMPT_COUNT is now unconditionally enabled and will be
removed. Cleanup the leftovers before doing so.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Will Deacon <will@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
include/linux/lockdep.h | 6 ++----
lib/Kconfig.debug | 1 -
2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 6a584b3..879de69 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -560,16 +560,14 @@ do { \

#define lockdep_assert_preemption_enabled() \
do { \
- WARN_ON_ONCE(IS_ENABLED(CONFIG_PREEMPT_COUNT) && \
- debug_locks && \
+ WARN_ON_ONCE(debug_locks && \
(preempt_count() != 0 || \
!raw_cpu_read(hardirqs_enabled))); \
} while (0)

#define lockdep_assert_preemption_disabled() \
do { \
- WARN_ON_ONCE(IS_ENABLED(CONFIG_PREEMPT_COUNT) && \
- debug_locks && \
+ WARN_ON_ONCE(debug_locks && \
(preempt_count() == 0 && \
raw_cpu_read(hardirqs_enabled))); \
} while (0)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index f50fbcf..d4d0574 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1161,7 +1161,6 @@ config PROVE_LOCKING
select DEBUG_RWSEMS
select DEBUG_WW_MUTEX_SLOWPATH
select DEBUG_LOCK_ALLOC
- select PREEMPT_COUNT
select TRACE_IRQFLAGS
default n
help
--
2.9.5