From: Bjørn Mork <[email protected]>
Date: Sat, 3 May 2014 16:12:47 +0200
> Fixes this warning introduced by commit 5b8f15f78e6f
> ("net: cdc_mbim: handle IPv6 Neigbor Solicitations"):
>
> ===============================
> [ INFO: suspicious RCU usage. ]
> 3.15.0-rc3 #213 Tainted: G W O
> -------------------------------
> net/8021q/vlan_core.c:69 suspicious rcu_dereference_check() usage!
>
> other info that might help us debug this:
>
> rcu_scheduler_active = 1, debug_locks = 1
> no locks held by ksoftirqd/0/3.
...
> Fixes: 5b8f15f78e6f ("net: cdc_mbim: handle IPv6 Neigbor Solicitations")
> Signed-off-by: Bjørn Mork <[email protected]>
> ---
> v2: get a ref to the netdev before releasing the lock. Thanks to Eric Dumazet
>
> Please add this to the stable v3.13 and v3.14 queues as well. Thanks.
Applied, thanks a lot.
If someone feels slightly inspired it might be a good idea to rename
__vlan_find_dev_deep to __vlan_find_dev_deep_rcu.
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