xiaomi-sm8450/android_kernel_xiaomi_sm8450
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bridge: add support for user mode STP

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This patchset based on work by Aji_Srinivas@emc.com provides allows
spanning tree to be controled from userspace.  Like hotplug, it
uses call_usermodehelper when spanning tree is enabled so there
is no visible API change. If call to start usermode STP fails
it falls back to existing kernel STP.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
This commit is contained in:
Stephen Hemminger
2007-03-21 14:22:44 -07:00
committed by David S. Miller
parent 9cf637473c
commit 9cde070874
8 changed files with 96 additions and 17 deletions
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2
net/bridge/br_netlink.c
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@@ -165,7 +165,7 @@ static int br_rtm_setlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
return -EINVAL;
/* if kernel STP is running, don't allow changes */
if (p->br->stp_enabled)
if (p->br->stp_enabled == BR_KERNEL_STP)
return -EBUSY;
if (!netif_running(dev) ||