[patch 04/13] lockdep: Clenaup PREEMPT_COUNT leftovers

Thomas Gleixner tglx at linutronix.de
Mon Sep 14 20:42:13 UTC 2020


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

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

--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -585,16 +585,14 @@ 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)
--- 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



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