crypto: engine - check if BH is disabled during completion

When doing iperf over ipsec with crypto hardware sun8i-ce, I hit some spinlock recursion bug. This is due to completion function called with enabled BH. Add check a to detect this. Fixes: 735d37b ("crypto: engine - Introduce the block request crypto engine framework") Signed-off-by: Corentin Labbe <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
ambv · Mar 2, 2022 · 4058cf0 · 4058cf0
1 parent 7f22421
commit 4058cf0
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/crypto/crypto_engine.c b/crypto/crypto_engine.c
@@ -53,6 +53,7 @@ static void crypto_finalize_request(struct crypto_engine *engine,
 				dev_err(engine->dev, "failed to unprepare request\n");
 		}
 	}
+	lockdep_assert_in_softirq();
 	req->complete(req, err);
 
 	kthread_queue_work(engine->kworker, &engine->pump_requests);