linux-kernel - Re: [PATCH for-next 10/20] IB/hns: Modify the init of iboe lock

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Date:   Tue, 13 Sep 2016 09:50:28 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Salil Mehta <salil.mehta@...wei.com>
Cc:     dledford@...hat.com, xavier.huwei@...wei.com, oulijun@...wei.com,
        yisen.zhuang@...wei.com, xuwei5@...ilicon.com,
        mehta.salil.lnk@...il.com, linux-rdma@...r.kernel.org,
        linux-kernel@...r.kernel.org, linuxarm@...wei.com,
        "Dongdong Huang(Donald)" <hdd.huang@...wei.com>
Subject: Re: [PATCH for-next 10/20] IB/hns: Modify the init of iboe lock

On Fri, Sep 09, 2016 at 06:30:41PM +0800, Salil Mehta wrote:
> From: Lijun Ou <oulijun@...wei.com>
>
> This lock will be used in query port interface, and will be called
> while IB device was registered to OFED frame. So, the lock of iboe
> must be initiated before IB device was registered.

Sorry,
what did you mean by writing "OFED frame"?

>
> Signed-off-by: Lijun Ou <oulijun@...wei.com>
> Signed-off-by: Dongdong Huang(Donald) <hdd.huang@...wei.com>
> Reviewed-by:  Wei Hu (Xavier) <xavier.huwei@...wei.com>
> Signed-off-by: Salil Mehta <salil.mehta@...wei.com>
> ---
>  drivers/infiniband/hw/hns/hns_roce_main.c |    3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
> index 2704076..4721c0c 100644
> --- a/drivers/infiniband/hw/hns/hns_roce_main.c
> +++ b/drivers/infiniband/hw/hns/hns_roce_main.c
> @@ -615,6 +615,7 @@ static int hns_roce_register_device(struct hns_roce_dev *hr_dev)
>  	struct device *dev = &hr_dev->pdev->dev;
>
>  	iboe = &hr_dev->iboe;
> +	spin_lock_init(&iboe->lock);
>
>  	ib_dev = &hr_dev->ib_dev;
>  	strlcpy(ib_dev->name, "hisi_%d", IB_DEVICE_NAME_MAX);
> @@ -701,8 +702,6 @@ static int hns_roce_register_device(struct hns_roce_dev *hr_dev)
>  		goto error_failed_setup_mtu_gids;
>  	}
>
> -	spin_lock_init(&iboe->lock);
> -
>  	iboe->nb.notifier_call = hns_roce_netdev_event;
>  	ret = register_netdevice_notifier(&iboe->nb);
>  	if (ret) {
> --
> 1.7.9.5
>
> --
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