lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20220104171413.2293847-8-vladimir.oltean@nxp.com>
Date:   Tue,  4 Jan 2022 19:14:05 +0200
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     netdev@...r.kernel.org
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>
Subject: [PATCH net-next 07/15] net: dsa: remove cross-chip support for MRP

The cross-chip notifiers for MRP are bypass operations, meaning that
even though all switches in a tree are notified, only the switch
specified in the info structure is targeted.

We can eliminate the unnecessary complexity by deleting the cross-chip
notifier logic and calling the ds->ops straight from port.c.

Cc: Horatiu Vultur <horatiu.vultur@...rochip.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
 net/dsa/dsa_priv.h |  4 ---
 net/dsa/port.c     | 44 +++++++++++++++----------------
 net/dsa/switch.c   | 64 ----------------------------------------------
 3 files changed, 20 insertions(+), 92 deletions(-)

diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index b5ae21f172a8..54c23479b9ba 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -40,10 +40,6 @@ enum {
 	DSA_NOTIFIER_TAG_PROTO,
 	DSA_NOTIFIER_TAG_PROTO_CONNECT,
 	DSA_NOTIFIER_TAG_PROTO_DISCONNECT,
-	DSA_NOTIFIER_MRP_ADD,
-	DSA_NOTIFIER_MRP_DEL,
-	DSA_NOTIFIER_MRP_ADD_RING_ROLE,
-	DSA_NOTIFIER_MRP_DEL_RING_ROLE,
 	DSA_NOTIFIER_TAG_8021Q_VLAN_ADD,
 	DSA_NOTIFIER_TAG_8021Q_VLAN_DEL,
 };
diff --git a/net/dsa/port.c b/net/dsa/port.c
index 05677e016982..5c72f890c6a2 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -907,49 +907,45 @@ int dsa_port_vlan_del(struct dsa_port *dp,
 int dsa_port_mrp_add(const struct dsa_port *dp,
 		     const struct switchdev_obj_mrp *mrp)
 {
-	struct dsa_notifier_mrp_info info = {
-		.sw_index = dp->ds->index,
-		.port = dp->index,
-		.mrp = mrp,
-	};
+	struct dsa_switch *ds = dp->ds;
+
+	if (!ds->ops->port_mrp_add)
+		return -EOPNOTSUPP;
 
-	return dsa_port_notify(dp, DSA_NOTIFIER_MRP_ADD, &info);
+	return ds->ops->port_mrp_add(ds, dp->index, mrp);
 }
 
 int dsa_port_mrp_del(const struct dsa_port *dp,
 		     const struct switchdev_obj_mrp *mrp)
 {
-	struct dsa_notifier_mrp_info info = {
-		.sw_index = dp->ds->index,
-		.port = dp->index,
-		.mrp = mrp,
-	};
+	struct dsa_switch *ds = dp->ds;
+
+	if (!ds->ops->port_mrp_del)
+		return -EOPNOTSUPP;
 
-	return dsa_port_notify(dp, DSA_NOTIFIER_MRP_DEL, &info);
+	return ds->ops->port_mrp_del(ds, dp->index, mrp);
 }
 
 int dsa_port_mrp_add_ring_role(const struct dsa_port *dp,
 			       const struct switchdev_obj_ring_role_mrp *mrp)
 {
-	struct dsa_notifier_mrp_ring_role_info info = {
-		.sw_index = dp->ds->index,
-		.port = dp->index,
-		.mrp = mrp,
-	};
+	struct dsa_switch *ds = dp->ds;
+
+	if (!ds->ops->port_mrp_add)
+		return -EOPNOTSUPP;
 
-	return dsa_port_notify(dp, DSA_NOTIFIER_MRP_ADD_RING_ROLE, &info);
+	return ds->ops->port_mrp_add_ring_role(ds, dp->index, mrp);
 }
 
 int dsa_port_mrp_del_ring_role(const struct dsa_port *dp,
 			       const struct switchdev_obj_ring_role_mrp *mrp)
 {
-	struct dsa_notifier_mrp_ring_role_info info = {
-		.sw_index = dp->ds->index,
-		.port = dp->index,
-		.mrp = mrp,
-	};
+	struct dsa_switch *ds = dp->ds;
+
+	if (!ds->ops->port_mrp_del)
+		return -EOPNOTSUPP;
 
-	return dsa_port_notify(dp, DSA_NOTIFIER_MRP_DEL_RING_ROLE, &info);
+	return ds->ops->port_mrp_del_ring_role(ds, dp->index, mrp);
 }
 
 void dsa_port_set_tag_protocol(struct dsa_port *cpu_dp,
diff --git a/net/dsa/switch.c b/net/dsa/switch.c
index 393f2d8a860a..a164ec02b4e9 100644
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c
@@ -701,58 +701,6 @@ dsa_switch_disconnect_tag_proto(struct dsa_switch *ds,
 	return 0;
 }
 
-static int dsa_switch_mrp_add(struct dsa_switch *ds,
-			      struct dsa_notifier_mrp_info *info)
-{
-	if (!ds->ops->port_mrp_add)
-		return -EOPNOTSUPP;
-
-	if (ds->index == info->sw_index)
-		return ds->ops->port_mrp_add(ds, info->port, info->mrp);
-
-	return 0;
-}
-
-static int dsa_switch_mrp_del(struct dsa_switch *ds,
-			      struct dsa_notifier_mrp_info *info)
-{
-	if (!ds->ops->port_mrp_del)
-		return -EOPNOTSUPP;
-
-	if (ds->index == info->sw_index)
-		return ds->ops->port_mrp_del(ds, info->port, info->mrp);
-
-	return 0;
-}
-
-static int
-dsa_switch_mrp_add_ring_role(struct dsa_switch *ds,
-			     struct dsa_notifier_mrp_ring_role_info *info)
-{
-	if (!ds->ops->port_mrp_add)
-		return -EOPNOTSUPP;
-
-	if (ds->index == info->sw_index)
-		return ds->ops->port_mrp_add_ring_role(ds, info->port,
-						       info->mrp);
-
-	return 0;
-}
-
-static int
-dsa_switch_mrp_del_ring_role(struct dsa_switch *ds,
-			     struct dsa_notifier_mrp_ring_role_info *info)
-{
-	if (!ds->ops->port_mrp_del)
-		return -EOPNOTSUPP;
-
-	if (ds->index == info->sw_index)
-		return ds->ops->port_mrp_del_ring_role(ds, info->port,
-						       info->mrp);
-
-	return 0;
-}
-
 static int dsa_switch_event(struct notifier_block *nb,
 			    unsigned long event, void *info)
 {
@@ -826,18 +774,6 @@ static int dsa_switch_event(struct notifier_block *nb,
 	case DSA_NOTIFIER_TAG_PROTO_DISCONNECT:
 		err = dsa_switch_disconnect_tag_proto(ds, info);
 		break;
-	case DSA_NOTIFIER_MRP_ADD:
-		err = dsa_switch_mrp_add(ds, info);
-		break;
-	case DSA_NOTIFIER_MRP_DEL:
-		err = dsa_switch_mrp_del(ds, info);
-		break;
-	case DSA_NOTIFIER_MRP_ADD_RING_ROLE:
-		err = dsa_switch_mrp_add_ring_role(ds, info);
-		break;
-	case DSA_NOTIFIER_MRP_DEL_RING_ROLE:
-		err = dsa_switch_mrp_del_ring_role(ds, info);
-		break;
 	case DSA_NOTIFIER_TAG_8021Q_VLAN_ADD:
 		err = dsa_switch_tag_8021q_vlan_add(ds, info);
 		break;
-- 
2.25.1

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ