Re: [PATCH rdma-next] RDMA/mlx4: remove bogus dev_base_lock usage

[Jason Gunthorpe]

On Tue, Dec 08, 2020 at 09:39:28PM +0200, Vladimir Oltean wrote:
> It is not clear what this lock protects. If the authors wanted to ensure
> that "dev" does not disappear, that is impossible, given the following
> code path:
> 
> mlx4_ib_netdev_event (under RTNL mutex)
> -> mlx4_ib_scan_netdevs
>    -> mlx4_ib_update_qps
> 
> Also, the dev_base_lock does not protect dev->dev_addr either.
> 
> So it serves no purpose here. Remove it.
> 
> Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxx>
> Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>
> ---
>  drivers/infiniband/hw/mlx4/main.c | 3 ---
>  1 file changed, 3 deletions(-)

Applied to for-next, thanks

Jason