From: Rohit Maheshwari <rohitm@chelsio.com>
Date: Thu, 23 Apr 2020 12:18:55 +0530
Subject: chcr: Fix CPU hard lockup
Patch-mainline: v5.7-rc3
Git-commit: d97793af11e48161dee00fa877e34b65e7a20da9
References: jsc#SLE-15131

Soft lock should be taken in place of hard lock.

Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/crypto/chelsio/chcr_ktls.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/crypto/chelsio/chcr_ktls.c
+++ b/drivers/crypto/chelsio/chcr_ktls.c
@@ -120,12 +120,10 @@ out:
 static int chcr_ktls_update_connection_state(struct chcr_ktls_info *tx_info,
 					     int new_state)
 {
-	unsigned long flags;
-
 	/* This function can be called from both rx (interrupt context) and tx
 	 * queue contexts.
 	 */
-	spin_lock_irqsave(&tx_info->lock, flags);
+	spin_lock_bh(&tx_info->lock);
 	switch (tx_info->connection_state) {
 	case KTLS_CONN_CLOSED:
 		tx_info->connection_state = new_state;
@@ -169,7 +167,7 @@ static int chcr_ktls_update_connection_s
 		pr_err("unknown KTLS connection state\n");
 		break;
 	}
-	spin_unlock_irqrestore(&tx_info->lock, flags);
+	spin_unlock_bh(&tx_info->lock);
 
 	return tx_info->connection_state;
 }