Re: [Qemu-devel] [RFC PATCH] net/net: Record usage status of mac address

[Stefan Hajnoczi <stefanha@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1073 bytes --]

On Thu, May 21, 2015 at 05:44:48PM +0800, Shannon Zhao wrote:
> From: Shannon Zhao <shannon.zhao@linaro.org>
> 
> Currently QEMU dynamically generates mac address for the NIC which
> doesn't specify the mac address. But when we hotplug a NIC without
> specifying mac address, the mac address will increase for the same NIC
> along with hotplug and hot-unplug, and at last it will overflow. And if
> we codeplug one NIC with mac address e.g. "52:54:00:12:34:56", then
> hotplug one NIC without specifying mac address and the mac address of
> the hotplugged NIC is duplicate of "52:54:00:12:34:56".
> 
> This patch add a mac_table to record the usage status and free the mac
> address when the NIC is unrealized.
> 
> Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
> ---
>  net/net.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++----
>  1 file changed, 55 insertions(+), 4 deletions(-)

Thanks, applied to my net tree:
https://github.com/stefanha/qemu/commits/net

Stefan

[-- Attachment #2: Type: application/pgp-signature, Size: 473 bytes --]