59 lines
1.9 KiB
Diff
59 lines
1.9 KiB
Diff
From a05aa24a03675158abf450788bb29bedfdf74b34 Mon Sep 17 00:00:00 2001
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From: Murat Sezgin <msezgin@codeaurora.org>
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Date: Wed, 11 Mar 2020 12:44:01 -0700
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Subject: [PATCH 217/500] net: Add netdevice notification for bridge activity
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This modification allows programs to get notified whenever a
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device is added to or removed from a bridge. This will be used
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by NSS Qdisc for updating bridge shaper configuration.
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Change-Id: I97aa6951c98ba83cd0d176cd60a9e9fd910f7ad4
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Signed-off-by: Shashank Balashankar <sbalasha@codeaurora.org>
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Signed-off-by: Murat Sezgin <msezgin@codeaurora.org>
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---
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include/linux/netdevice.h | 2 ++
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net/bridge/br_if.c | 3 +++
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net/core/dev.c | 1 +
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3 files changed, 6 insertions(+)
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--- a/include/linux/netdevice.h
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+++ b/include/linux/netdevice.h
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@@ -2939,6 +2939,8 @@ enum netdev_cmd {
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NETDEV_OFFLOAD_XSTATS_REPORT_USED,
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NETDEV_OFFLOAD_XSTATS_REPORT_DELTA,
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NETDEV_XDP_FEAT_CHANGE,
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+ NETDEV_BR_JOIN,
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+ NETDEV_BR_LEAVE,
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};
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const char *netdev_cmd_to_name(enum netdev_cmd cmd);
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--- a/net/bridge/br_if.c
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+++ b/net/bridge/br_if.c
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@@ -700,6 +700,7 @@ int br_add_if(struct net_bridge *br, str
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br_set_gso_limits(br);
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kobject_uevent(&p->kobj, KOBJ_ADD);
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+ call_netdevice_notifiers(NETDEV_BR_JOIN, dev);
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return 0;
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@@ -736,6 +737,8 @@ int br_del_if(struct net_bridge *br, str
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if (!p || p->br != br)
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return -EINVAL;
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+ call_netdevice_notifiers(NETDEV_BR_LEAVE, dev);
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+
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/* Since more than one interface can be attached to a bridge,
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* there still maybe an alternate path for netconsole to use;
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* therefore there is no reason for a NETDEV_RELEASE event.
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--- a/net/core/dev.c
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+++ b/net/core/dev.c
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@@ -1699,6 +1699,7 @@ const char *netdev_cmd_to_name(enum netd
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N(PRE_CHANGEADDR) N(OFFLOAD_XSTATS_ENABLE) N(OFFLOAD_XSTATS_DISABLE)
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N(OFFLOAD_XSTATS_REPORT_USED) N(OFFLOAD_XSTATS_REPORT_DELTA)
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N(XDP_FEAT_CHANGE)
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+ N(BR_JOIN) N(BR_LEAVE)
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}
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#undef N
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return "UNKNOWN_NETDEV_EVENT";
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