netdev - [PATCH net-next 08/16] net: dsa: use ports list to setup multiple master devices

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]

Date:   Sat, 19 Oct 2019 23:19:33 -0400
From:   Vivien Didelot <vivien.didelot@...il.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     linux-kernel@...r.kernel.org,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>, netdev@...r.kernel.org
Subject: [PATCH net-next 08/16] net: dsa: use ports list to setup multiple master devices

Now that we have a potential list of CPU ports, make use of it instead
of only configuring the master device of an unique CPU port.

Signed-off-by: Vivien Didelot <vivien.didelot@...il.com>
---
 net/dsa/dsa2.c | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 8b038cc56769..3b8de155bc0b 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -501,19 +501,27 @@ static void dsa_tree_teardown_switches(struct dsa_switch_tree *dst)
 
 static int dsa_tree_setup_master(struct dsa_switch_tree *dst)
 {
-	struct dsa_port *cpu_dp = dst->cpu_dp;
-	struct net_device *master = cpu_dp->master;
+	struct dsa_port *dp;
+	int err;
 
-	/* DSA currently supports a single pair of CPU port and master device */
-	return dsa_master_setup(master, cpu_dp);
+	list_for_each_entry(dp, &dst->ports, list) {
+		if (dsa_port_is_cpu(dp)) {
+			err = dsa_master_setup(dp->master, dp);
+			if (err)
+				return err;
+		}
+	}
+
+	return 0;
 }
 
 static void dsa_tree_teardown_master(struct dsa_switch_tree *dst)
 {
-	struct dsa_port *cpu_dp = dst->cpu_dp;
-	struct net_device *master = cpu_dp->master;
+	struct dsa_port *dp;
 
-	return dsa_master_teardown(master);
+	list_for_each_entry(dp, &dst->ports, list)
+		if (dsa_port_is_cpu(dp))
+			dsa_master_teardown(dp->master);
 }
 
 static int dsa_tree_setup(struct dsa_switch_tree *dst)
-- 
2.23.0