Re: [PATCH] net: ethernet: ti: cpsw: fix ASSERT_RTNL() warning during resume

From: David Miller
Date: Wed Nov 30 2016 - 14:59:49 EST


From: Grygorii Strashko <grygorii.strashko@xxxxxx>
Date: Tue, 29 Nov 2016 16:27:03 -0600

> netif_set_real_num_tx/rx_queues() are required to be called with rtnl_lock
> taken, otherwise ASSERT_RTNL() warning will be triggered - which happens
> now during System resume from suspend:
> cpsw_resume()
> |- cpsw_ndo_open()
> |- netif_set_real_num_tx/rx_queues()
> |- ASSERT_RTNL();
>
> Hence, fix it by surrounding cpsw_ndo_open() by rtnl_lock/unlock() calls.
>
> Cc: Dave Gerlach <d-gerlach@xxxxxx>
> Cc: Ivan Khoronzhuk <ivan.khoronzhuk@xxxxxxxxxx>
> Fixes: commit e05107e6b747 ("net: ethernet: ti: cpsw: add multi queue support")
> Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxx>

Applied.