locking/selftests: Add a selftest for check_irq_usage()

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Johannes Berg reported a lockdep problem which could be reproduced by
the special test case introduced in this patch, so add it.

Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210618170110.3699115-5-boqun.feng@gmail.com

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Boqun Feng 2021-06-19 01:01:10 +08:00 • committed by Peter Zijlstra

parent 7b1f8c6179

commit 8946ccc25e

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lib/locking-selftest.c

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