From: Haiyang Zhang <haiya...@microsoft.com>
Date: Mon, 13 Jul 2015 13:09:16 -0700

> The current change mtu call only stops tx before removing RNDIS filter.
> In case ringbufer is not empty, the rndis_filter_device_remove() may
> hang on removing the buffers.
> 
> This patch adds close of RNDIS filter before removing it, also a
> gradual waiting loop until the ring is empty. The change_mtu hang
> issue under heavy traffic is solved by this patch.
> 
> Signed-off-by: Haiyang Zhang <haiya...@microsoft.com>
> Reviewed-by: K. Y. Srinivasan <k...@microsoft.com>

Applied, thanks.
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