netdev - [PATCH net 1/4] ice: Fix SRIOV LAG disable on non-compliant aggregate

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Date: Mon,  6 Nov 2023 16:48:39 -0800
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	netdev@...r.kernel.org
Cc: Dave Ertman <david.m.ertman@...el.com>,
	anthony.l.nguyen@...el.com,
	daniel.machon@...rochip.com,
	Wojciech Drewek <wojciech.drewek@...el.com>,
	Simon Horman <horms@...nel.org>,
	Sujai Buvaneswaran <sujai.buvaneswaran@...el.com>
Subject: [PATCH net 1/4] ice: Fix SRIOV LAG disable on non-compliant aggregate

From: Dave Ertman <david.m.ertman@...el.com>

If an attribute of an aggregate interface disqualifies it from supporting
SRIOV, the driver will unwind the SRIOV support.  Currently the driver is
clearing the feature bit for all interfaces in the aggregate, but this is
not allowing the other interfaces to unwind successfully on driver unload.

Only clear the feature bit for the interface that is currently unwinding.

Fixes: bf65da2eb279 ("ice: enforce interface eligibility and add messaging for SRIOV LAG")
Signed-off-by: Dave Ertman <david.m.ertman@...el.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@...el.com>
Reviewed-by: Simon Horman <horms@...nel.org>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_lag.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_lag.c b/drivers/net/ethernet/intel/ice/ice_lag.c
index b980f89dc892..95e46bde54fe 100644
--- a/drivers/net/ethernet/intel/ice/ice_lag.c
+++ b/drivers/net/ethernet/intel/ice/ice_lag.c
@@ -1555,18 +1555,12 @@ static void ice_lag_chk_disabled_bond(struct ice_lag *lag, void *ptr)
  */
 static void ice_lag_disable_sriov_bond(struct ice_lag *lag)
 {
-	struct ice_lag_netdev_list *entry;
 	struct ice_netdev_priv *np;
-	struct net_device *netdev;
 	struct ice_pf *pf;
 
-	list_for_each_entry(entry, lag->netdev_head, node) {
-		netdev = entry->netdev;
-		np = netdev_priv(netdev);
-		pf = np->vsi->back;
-
-		ice_clear_feature_support(pf, ICE_F_SRIOV_LAG);
-	}
+	np = netdev_priv(lag->netdev);
+	pf = np->vsi->back;
+	ice_clear_feature_support(pf, ICE_F_SRIOV_LAG);
 }
 
 /**
-- 
2.41.0