linux-kernel - [PATCH net-next] bonding: set xfrm feature flags more sanely

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Message-Id: <20201205174003.578267-1-jarod@redhat.com>
Date:   Sat,  5 Dec 2020 12:40:03 -0500
From:   Jarod Wilson <jarod@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     Jarod Wilson <jarod@...hat.com>,
        Jay Vosburgh <j.vosburgh@...il.com>,
        Veaceslav Falico <vfalico@...il.com>,
        Andy Gospodarek <andy@...yhouse.net>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Thomas Davis <tadavis@....gov>, netdev@...r.kernel.org
Subject: [PATCH net-next] bonding: set xfrm feature flags more sanely

We can remove one of the ifdef blocks here, and instead of setting both
the xfrm hw_features and features flags, then unsetting the the features
flags if not in AB, wait to set the features flags if we're actually in AB
mode.

Cc: Jay Vosburgh <j.vosburgh@...il.com>
Cc: Veaceslav Falico <vfalico@...il.com>
Cc: Andy Gospodarek <andy@...yhouse.net>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: Thomas Davis <tadavis@....gov>
Cc: netdev@...r.kernel.org
Signed-off-by: Jarod Wilson <jarod@...hat.com>
---
 drivers/net/bonding/bond_main.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index e0880a3840d7..5fe5232cc3f3 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4746,15 +4746,13 @@ void bond_setup(struct net_device *bond_dev)
 				NETIF_F_HW_VLAN_CTAG_FILTER;
 
 	bond_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL;
-#ifdef CONFIG_XFRM_OFFLOAD
-	bond_dev->hw_features |= BOND_XFRM_FEATURES;
-#endif /* CONFIG_XFRM_OFFLOAD */
 	bond_dev->features |= bond_dev->hw_features;
 	bond_dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX;
 #ifdef CONFIG_XFRM_OFFLOAD
-	/* Disable XFRM features if this isn't an active-backup config */
-	if (BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP)
-		bond_dev->features &= ~BOND_XFRM_FEATURES;
+	bond_dev->hw_features |= BOND_XFRM_FEATURES;
+	/* Only enable XFRM features if this is an active-backup config */
+	if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP)
+		bond_dev->features |= BOND_XFRM_FEATURES;
 #endif /* CONFIG_XFRM_OFFLOAD */
 }
 
-- 
2.28.0