From: Peter Zijlstra peterz@infradead.org
[ Upstream commit c0c2c0dad6a06e0c05e9a52d65f932bd54364c97 ]
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: de8f5e4f2dc1 ("lockdep: Introduce wait-type checks") Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Tested-by: Joerg Roedel jroedel@suse.de Link: https://lore.kernel.org/r/20210617190313.322096283@infradead.org Signed-off-by: Sasha Levin sashal@kernel.org --- lib/locking-selftest.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c index 2d85abac1744..0f6b262e0964 100644 --- a/lib/locking-selftest.c +++ b/lib/locking-selftest.c @@ -194,6 +194,7 @@ static void init_shared_classes(void) #define HARDIRQ_ENTER() \ local_irq_disable(); \ __irq_enter(); \ + lockdep_hardirq_threaded(); \ WARN_ON(!in_irq());
#define HARDIRQ_EXIT() \