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[5/5] crypto: engine: check if BH is disabled during completion

Message ID 20220221120833.2618733-6-clabbe@baylibre.com
State Accepted
Commit 4058cf08945c18a6de193f4118fd05d83d3d4285
Headers show
Series [1/5] crypto: sun8i-ss: call finalize with bh disabled | expand

Commit Message

Corentin Labbe Feb. 21, 2022, 12:08 p.m. UTC 
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: 735d37b5424b ("crypto: engine - Introduce the block request crypto engine framework")
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
---
 crypto/crypto_engine.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/crypto/crypto_engine.c b/crypto/crypto_engine.c
index fb07da9920ee..6056a990c9f2 100644
--- 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);