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authorJames <>2015-11-04 11:49:21 +0000
committerJames <>2015-11-04 11:49:21 +0000
commit716ca530e1c4515d8683c9d5be3d56b301758b66 (patch)
tree700eb5bcc1a462a5f21dcec15ce7c97ecfefa772 /target/linux/generic/patches-3.18/051-02-bridge-allow-setting-hash_max-multicast_router-if-in.patch
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Diffstat (limited to 'target/linux/generic/patches-3.18/051-02-bridge-allow-setting-hash_max-multicast_router-if-in.patch')
-rw-r--r--target/linux/generic/patches-3.18/051-02-bridge-allow-setting-hash_max-multicast_router-if-in.patch99
1 files changed, 99 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.18/051-02-bridge-allow-setting-hash_max-multicast_router-if-in.patch b/target/linux/generic/patches-3.18/051-02-bridge-allow-setting-hash_max-multicast_router-if-in.patch
new file mode 100644
index 0000000..f7f88f8
--- /dev/null
+++ b/target/linux/generic/patches-3.18/051-02-bridge-allow-setting-hash_max-multicast_router-if-in.patch
@@ -0,0 +1,99 @@
+From 6ae4ae8e512bd229f806c22f8a2cd751e4f987c2 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Linus=20L=C3=BCssing?= <linus.luessing@c0d3.blue>
+Date: Sat, 23 May 2015 03:12:34 +0200
+Subject: [PATCH] bridge: allow setting hash_max + multicast_router if
+ interface is down
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Network managers like netifd (used in OpenWRT for instance) try to
+configure interface options after creation but before setting the
+interface up.
+
+Unfortunately the sysfs / bridge currently only allows to configure the
+hash_max and multicast_router options when the bridge interface is up.
+But since br_multicast_init() doesn't start any timers and only sets
+default values and initializes timers it should be save to reconfigure
+the default values after that, before things actually get active after
+the bridge is set up.
+
+Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ net/bridge/br_multicast.c | 24 +++---------------------
+ 1 file changed, 3 insertions(+), 21 deletions(-)
+
+--- a/net/bridge/br_multicast.c
++++ b/net/bridge/br_multicast.c
+@@ -1948,11 +1948,9 @@ out:
+
+ int br_multicast_set_router(struct net_bridge *br, unsigned long val)
+ {
+- int err = -ENOENT;
++ int err = -EINVAL;
+
+ spin_lock_bh(&br->multicast_lock);
+- if (!netif_running(br->dev))
+- goto unlock;
+
+ switch (val) {
+ case 0:
+@@ -1963,13 +1961,8 @@ int br_multicast_set_router(struct net_b
+ br->multicast_router = val;
+ err = 0;
+ break;
+-
+- default:
+- err = -EINVAL;
+- break;
+ }
+
+-unlock:
+ spin_unlock_bh(&br->multicast_lock);
+
+ return err;
+@@ -1978,11 +1971,9 @@ unlock:
+ int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val)
+ {
+ struct net_bridge *br = p->br;
+- int err = -ENOENT;
++ int err = -EINVAL;
+
+ spin_lock(&br->multicast_lock);
+- if (!netif_running(br->dev) || p->state == BR_STATE_DISABLED)
+- goto unlock;
+
+ switch (val) {
+ case 0:
+@@ -2004,13 +1995,8 @@ int br_multicast_set_port_router(struct
+
+ br_multicast_add_router(br, p);
+ break;
+-
+- default:
+- err = -EINVAL;
+- break;
+ }
+
+-unlock:
+ spin_unlock(&br->multicast_lock);
+
+ return err;
+@@ -2115,15 +2101,11 @@ unlock:
+
+ int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val)
+ {
+- int err = -ENOENT;
++ int err = -EINVAL;
+ u32 old;
+ struct net_bridge_mdb_htable *mdb;
+
+ spin_lock_bh(&br->multicast_lock);
+- if (!netif_running(br->dev))
+- goto unlock;
+-
+- err = -EINVAL;
+ if (!is_power_of_2(val))
+ goto unlock;
+