netdev - [RFC net-next 3/3] net: dsa: b53: Remove CPU port specific VLAN programming

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 for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20161121190925.14530-4-f.fainelli@gmail.com>
Date:   Mon, 21 Nov 2016 11:09:25 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, bridge@...ts.linux-foundation.org,
        stephen@...workplumber.org, vivien.didelot@...oirfairelinux.com,
        andrew@...n.ch, jiri@...lanox.com, idosch@...lanox.com,
        Florian Fainelli <f.fainelli@...il.com>
Subject: [RFC net-next 3/3] net: dsa: b53: Remove CPU port specific VLAN programming

Now that DSA calls into the switch driver to program the CPU port's VLAN
attributes, we can get rid of the code that dealt with adding/removing
the CPU port to a downstream facing port VLAN membership.

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/net/dsa/b53/b53_common.c | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index 7717b19dc806..6577286a2721 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -951,7 +951,6 @@ static void b53_vlan_add(struct dsa_switch *ds, int port,
 	struct b53_device *dev = ds->priv;
 	bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
 	bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
-	unsigned int cpu_port = dev->cpu_port;
 	struct b53_vlan *vl;
 	u16 vid;
 
@@ -960,11 +959,11 @@ static void b53_vlan_add(struct dsa_switch *ds, int port,
 
 		b53_get_vlan_entry(dev, vid, vl);
 
-		vl->members |= BIT(port) | BIT(cpu_port);
+		vl->members |= BIT(port);
 		if (untagged)
-			vl->untag |= BIT(port) | BIT(cpu_port);
+			vl->untag |= BIT(port);
 		else
-			vl->untag &= ~(BIT(port) | BIT(cpu_port));
+			vl->untag &= ~BIT(port);
 
 		b53_set_vlan_entry(dev, vid, vl);
 		b53_fast_age_vlan(dev, vid);
@@ -973,8 +972,6 @@ static void b53_vlan_add(struct dsa_switch *ds, int port,
 	if (pvid) {
 		b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port),
 			    vlan->vid_end);
-		b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(cpu_port),
-			    vlan->vid_end);
 		b53_fast_age_vlan(dev, vid);
 	}
 }
@@ -984,7 +981,6 @@ static int b53_vlan_del(struct dsa_switch *ds, int port,
 {
 	struct b53_device *dev = ds->priv;
 	bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
-	unsigned int cpu_port = dev->cpu_port;
 	struct b53_vlan *vl;
 	u16 vid;
 	u16 pvid;
@@ -997,8 +993,6 @@ static int b53_vlan_del(struct dsa_switch *ds, int port,
 		b53_get_vlan_entry(dev, vid, vl);
 
 		vl->members &= ~BIT(port);
-		if ((vl->members & BIT(cpu_port)) == BIT(cpu_port))
-			vl->members = 0;
 
 		if (pvid == vid) {
 			if (is5325(dev) || is5365(dev))
@@ -1007,18 +1001,14 @@ static int b53_vlan_del(struct dsa_switch *ds, int port,
 				pvid = 0;
 		}
 
-		if (untagged) {
+		if (untagged)
 			vl->untag &= ~(BIT(port));
-			if ((vl->untag & BIT(cpu_port)) == BIT(cpu_port))
-				vl->untag = 0;
-		}
 
 		b53_set_vlan_entry(dev, vid, vl);
 		b53_fast_age_vlan(dev, vid);
 	}
 
 	b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), pvid);
-	b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(cpu_port), pvid);
 	b53_fast_age_vlan(dev, pvid);
 
 	return 0;
@@ -1396,8 +1386,8 @@ static void b53_br_leave(struct dsa_switch *ds, int port)
 		b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg);
 	} else {
 		b53_get_vlan_entry(dev, pvid, vl);
-		vl->members |= BIT(port) | BIT(dev->cpu_port);
-		vl->untag |= BIT(port) | BIT(dev->cpu_port);
+		vl->members |= BIT(port);
+		vl->untag |= BIT(port);
 		b53_set_vlan_entry(dev, pvid, vl);
 	}
 }
-- 
2.9.3