lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING

When PROVE_RAW_LOCK_NESTING=y many of the selftests FAILED because HARDIRQ context is out-of-bounds for spinlocks. Instead make the default hardware context the threaded hardirq context, which preserves the old locking rules. The wait-type specific locking selftests will have a non-threaded HARDIRQ variant. Fixes: de8f5e4 ("lockdep: Introduce wait-type checks") Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Tested-by: Joerg Roedel <[email protected]> Link: https://lore.kernel.org/r/[email protected]
jerrinot · Jun 22, 2021 · c0c2c0d · c0c2c0d
1 parent f8b298c
commit c0c2c0d
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c
@@ -195,6 +195,7 @@ static void init_shared_classes(void)
 #define HARDIRQ_ENTER()				\
 	local_irq_disable();			\
 	__irq_enter();				\
+	lockdep_hardirq_threaded();		\
 	WARN_ON(!in_irq());
 
 #define HARDIRQ_EXIT()				\