netdev - [for-next 06/14] net/mlx5e: Removed not need synchronize

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Date:   Mon,  5 Mar 2018 12:46:29 -0800
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Doug Ledford <dledford@...hat.com>
Cc:     netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        Leon Romanovsky <leonro@...lanox.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Aviad Yehezkel <aviadye@...lanox.com>,
        Matan Barak <matanb@...lanox.com>,
        Boris Pismenny <borisp@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [for-next 06/14] net/mlx5e: Removed not need synchronize_rcu

From: Aviad Yehezkel <aviadye@...lanox.com>

This is already done by xfrm layer between state_dev_del callback
to state_dev_free callback.

Signed-off-by: Aviad Yehezkel <aviadye@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
index 710521181143..1b49afca65c0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
@@ -100,8 +100,8 @@ static void mlx5e_ipsec_sadb_rx_free(struct mlx5e_ipsec_sa_entry *sa_entry)
 {
 	struct mlx5e_ipsec *ipsec = sa_entry->ipsec;
 
-	/* Wait for the hash_del_rcu call in sadb_rx_del to affect data path */
-	synchronize_rcu();
+	/* xfrm already doing sync rcu between del and free callbacks */
+
 	ida_simple_remove(&ipsec->halloc, sa_entry->handle);
 }
 
-- 
2.14.3