bonding: delete always true device check

JIRA: https://issues.redhat.com/browse/RHEL-84541
Upstream Status: net.git commit 546d983

commit 546d983
Author: Leon Romanovsky <leon@kernel.org>
Date:   Mon Feb 3 14:59:23 2025 +0200

    bonding: delete always true device check

    XFRM API makes sure that xs->xso.dev is valid in all XFRM offload
    callbacks. There is no need to check it again.

    Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
    Acked-by: Paolo Abeni <pabeni@redhat.com>
    Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
    Link: https://patch.msgid.link/0b2f8f5f09701bb43bbd83b94bfe5cb506b57adc.1738587150.git.leon@kernel.org
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Signed-off-by: Hangbin Liu <haliu@redhat.com>

Author: Hangbin Liu

drivers/net/bonding/bond_main.c

@@ -432,9 +432,6 @@ static struct net_device *bond_ipsec_dev(struct xfrm_state *xs)
 	struct bonding *bond;
 	struct slave *slave;
 
-	if (!bond_dev)
-		return NULL;
-
 	bond = netdev_priv(bond_dev);
 	if (BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP)
 		return NULL;