| From 6ca5b33a4e41470da700502e45062db47e655f8d Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Thu, 17 Jun 2021 20:57:19 +0200 |
| Subject: lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING |
| |
| 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 a899b3f0e2e5..76c52b0b76d3 100644 |
| --- a/lib/locking-selftest.c |
| +++ b/lib/locking-selftest.c |
| @@ -186,6 +186,7 @@ static void init_shared_classes(void) |
| #define HARDIRQ_ENTER() \ |
| local_irq_disable(); \ |
| __irq_enter(); \ |
| + lockdep_hardirq_threaded(); \ |
| WARN_ON(!in_irq()); |
| |
| #define HARDIRQ_EXIT() \ |
| -- |
| 2.30.2 |
| |
