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lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING

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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: de8f5e4f2d ("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
This commit is contained in:
Peter Zijlstra 2021-06-17 20:57:19 +02:00
parent f8b298cc39
commit c0c2c0dad6
1 changed files with 1 additions and 0 deletions
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lib/locking-selftest.c
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@ -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() \