linux-kernel - Re: [PATCH net-next 03/10] mlx4: Replace the mlx4

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Message-ID: <ZND4iQMbv5LWNaZA@vergenet.net>
Date:   Mon, 7 Aug 2023 15:58:33 +0200
From:   Simon Horman <horms@...nel.org>
To:     Petr Pavlu <petr.pavlu@...e.com>
Cc:     tariqt@...dia.com, yishaih@...dia.com, leon@...nel.org,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, jgg@...pe.ca, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 03/10] mlx4: Replace the mlx4_interface.event
 callback with a notifier

On Fri, Aug 04, 2023 at 05:05:20PM +0200, Petr Pavlu wrote:

...

> diff --git a/drivers/net/ethernet/mellanox/mlx4/en_main.c b/drivers/net/ethernet/mellanox/mlx4/en_main.c

...

> @@ -326,6 +333,11 @@ static void *mlx4_en_add(struct mlx4_dev *dev)
>  	mutex_init(&mdev->state_lock);
>  	mdev->device_up = true;
>  
> +	/* register mlx4 core notifier */
> +	mdev->mlx_nb.notifier_call = mlx4_en_event;
> +	err = mlx4_register_event_notifier(dev, &mdev->mlx_nb);

Hi Petr.

This fails to build because err isn't declared in this context.

> +	WARN(err, "failed to register mlx4 event notifier (%d)", err);
> +
>  	return mdev;
>  
>  err_mr:

...