Re: [PATCH 2/2] ixgbe: add missing rtnl_lock in PM resume path

[Jeff Kirsher]

On Thu, 2012-04-05 at 11:11 -0400, Benjamin Poirier wrote:
> Upon resume from standby, ixgbe may trigger the ASSERT_RTNL() in
> netif_set_real_num_tx_queues(). The call stack is:
>         netif_set_real_num_tx_queues
>         ixgbe_set_num_queues
>         ixgbe_init_interrupt_scheme
>         ixgbe_resume
> 
> Signed-off-by: Benjamin Poirier <bpoirier@xxxxxxx>
> 
> ---
> Unlike patch 1 for igb, we cannot lock rtnl closer to the point where
> netif_set_real_num_tx_queues() is called because
> ixgbe_init_interrupt_scheme()
> is also called by the dcb code, already under rtnl.
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-) 

Thanks Benjamin, I will add the patch to my igb queue of patches.

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