From: Michal Schmidt <mschmidt@redhat.com>
Date: Fri, 3 Mar 2017 16:08:32 +0000 (+0100)
Subject: bnx2x: do not rollback VF MAC/VLAN filters we did not configure
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=78d5505432436516456c12abbe705ec8dee7ee2b;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

bnx2x: do not rollback VF MAC/VLAN filters we did not configure

On failure to configure a VF MAC/VLAN filter we should not attempt to
rollback filters that we failed to configure with -EEXIST.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 9f0f851774f2..2068bb8f5495 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -434,7 +434,9 @@ static int bnx2x_vf_mac_vlan_config(struct bnx2x *bp,
 
 	/* Add/Remove the filter */
 	rc = bnx2x_config_vlan_mac(bp, &ramrod);
-	if (rc && rc != -EEXIST) {
+	if (rc == -EEXIST)
+		return 0;
+	if (rc) {
 		BNX2X_ERR("Failed to %s %s\n",
 			  filter->add ? "add" : "delete",
 			  (filter->type == BNX2X_VF_FILTER_VLAN_MAC) ?
@@ -444,6 +446,8 @@ static int bnx2x_vf_mac_vlan_config(struct bnx2x *bp,
 		return rc;
 	}
 
+	filter->applied = true;
+
 	return 0;
 }
 
@@ -471,6 +475,8 @@ int bnx2x_vf_mac_vlan_config_list(struct bnx2x *bp, struct bnx2x_virtf *vf,
 		BNX2X_ERR("Managed only %d/%d filters - rolling back\n",
 			  i, filters->count + 1);
 		while (--i >= 0) {
+			if (!filters->filters[i].applied)
+				continue;
 			filters->filters[i].add = !filters->filters[i].add;
 			bnx2x_vf_mac_vlan_config(bp, vf, qid,
 						 &filters->filters[i],
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
index 7a6d406f4c11..888d0b6632e8 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
@@ -114,6 +114,7 @@ struct bnx2x_vf_mac_vlan_filter {
 	(BNX2X_VF_FILTER_MAC | BNX2X_VF_FILTER_VLAN) /*shortcut*/
 
 	bool add;
+	bool applied;
 	u8 *mac;
 	u16 vid;
 };