[Intel-wired-lan] [next PATCH 2/2] i40e: remove unused argument

[Jesse Brandeburg]

With the final edition of the patches to remove sleeps from
the driver's entry points, the grab_rtnl argument is no
longer needed, so partially revert the commit that added it.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg at intel.com>
Change-ID: Ib9778476242586cc9e58b670f5f48d415cb59003

---
Testing Hints (required if no HSD): add and remove vlan, over and under
bonding and teaming driver, add and delete mac address, run debug kernel
with lock validator.  The test that originally failed was with vlan
add/remove while running a vlan as part of a bridge with dhclient over
the top of it.
---
 drivers/net/ethernet/intel/i40e/i40e.h             |  2 +-
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c     |  4 ++--
 drivers/net/ethernet/intel/i40e/i40e_main.c        | 16 +++++++++++-----
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c |  8 ++++----
 4 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index d854a46..0b9537b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -697,7 +697,7 @@ struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
 					bool is_vf, bool is_netdev);
 void i40e_del_filter(struct i40e_vsi *vsi, u8 *macaddr, s16 vlan,
 		     bool is_vf, bool is_netdev);
-int i40e_sync_vsi_filters(struct i40e_vsi *vsi, bool grab_rtnl);
+int i40e_sync_vsi_filters(struct i40e_vsi *vsi);
 struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
 				u16 uplink, u32 param1);
 int i40e_vsi_release(struct i40e_vsi *vsi);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index d1a91c8..10744a6 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -1138,7 +1138,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 		spin_lock_bh(&vsi->mac_filter_list_lock);
 		f = i40e_add_filter(vsi, ma, vlan, false, false);
 		spin_unlock_bh(&vsi->mac_filter_list_lock);
-		ret = i40e_sync_vsi_filters(vsi, true);
+		ret = i40e_sync_vsi_filters(vsi);
 		if (f && !ret)
 			dev_info(&pf->pdev->dev,
 				 "add macaddr: %pM vlan=%d added to VSI %d\n",
@@ -1177,7 +1177,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 		spin_lock_bh(&vsi->mac_filter_list_lock);
 		i40e_del_filter(vsi, ma, vlan, false, false);
 		spin_unlock_bh(&vsi->mac_filter_list_lock);
-		ret = i40e_sync_vsi_filters(vsi, true);
+		ret = i40e_sync_vsi_filters(vsi);
 		if (!ret)
 			dev_info(&pf->pdev->dev,
 				 "del macaddr: %pM vlan=%d removed from VSI %d\n",
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 3119ee4..9e6268b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1859,13 +1859,12 @@ static void i40e_cleanup_add_list(struct list_head *add_list)
 /**
  * i40e_sync_vsi_filters - Update the VSI filter list to the HW
  * @vsi: ptr to the VSI
- * @grab_rtnl: whether RTNL needs to be grabbed
  *
  * Push any outstanding VSI filter changes through the AdminQ.
  *
  * Returns 0 or error value
  **/
-int i40e_sync_vsi_filters(struct i40e_vsi *vsi, bool grab_rtnl)
+int i40e_sync_vsi_filters(struct i40e_vsi *vsi)
 {
 	struct list_head tmp_del_list, tmp_add_list;
 	struct i40e_mac_filter *f, *ftmp, *fclone;
@@ -2169,8 +2168,15 @@ static void i40e_sync_filters_subtask(struct i40e_pf *pf)
 
 	for (v = 0; v < pf->num_alloc_vsi; v++) {
 		if (pf->vsi[v] &&
-		    (pf->vsi[v]->flags & I40E_VSI_FLAG_FILTER_CHANGED))
-			i40e_sync_vsi_filters(pf->vsi[v], true);
+		    (pf->vsi[v]->flags & I40E_VSI_FLAG_FILTER_CHANGED)) {
+			int ret = i40e_sync_vsi_filters(pf->vsi[v]);
+
+			if (ret) {
+				/* come back and try again later */
+				pf->flags |= I40E_FLAG_FILTER_SYNC;
+				break;
+			}
+		}
 	}
 }
 
@@ -9219,7 +9225,7 @@ int i40e_vsi_release(struct i40e_vsi *vsi)
 				f->is_vf, f->is_netdev);
 	spin_unlock_bh(&vsi->mac_filter_list_lock);
 
-	i40e_sync_vsi_filters(vsi, false);
+	i40e_sync_vsi_filters(vsi);
 
 	i40e_vsi_delete(vsi);
 	i40e_vsi_free_q_vectors(vsi);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 26f247d..819803c8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -565,7 +565,7 @@ static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
 	}
 
 	/* program mac filter */
-	ret = i40e_sync_vsi_filters(vsi, false);
+	ret = i40e_sync_vsi_filters(vsi);
 	if (ret)
 		dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
 
@@ -1633,7 +1633,7 @@ static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
 	spin_unlock_bh(&vsi->mac_filter_list_lock);
 
 	/* program the updated filter list */
-	if (i40e_sync_vsi_filters(vsi, false))
+	if (i40e_sync_vsi_filters(vsi))
 		dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters\n",
 			vf->vf_id);
 
@@ -1687,7 +1687,7 @@ static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
 	spin_unlock_bh(&vsi->mac_filter_list_lock);
 
 	/* program the updated filter list */
-	if (i40e_sync_vsi_filters(vsi, false))
+	if (i40e_sync_vsi_filters(vsi))
 		dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters\n",
 			vf->vf_id);
 
@@ -2102,7 +2102,7 @@ int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
 
 	dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
 	/* program mac filter */
-	if (i40e_sync_vsi_filters(vsi, false)) {
+	if (i40e_sync_vsi_filters(vsi)) {
 		dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
 		ret = -EIO;
 		goto error_param;
-- 
1.8.3.1