From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next 1/8] net: eth: altera: tse_start_xmit ignores
 tx_buffer call response
Date: Fri, 16 Nov 2018 20:38:00 -0800 (PST)
Message-ID: <20181116.203800.1372283941971325282.davem@davemloft.net>
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From: Dalon Westergreen <dwesterg@gmail.com>
Date: Wed, 14 Nov 2018 16:50:40 -0800

> @@ -202,7 +204,7 @@ int sgdma_tx_buffer(struct altera_tse_private *priv, struct tse_buffer *buffer)
>  	/* enqueue the request to the pending transmit queue */
>  	queue_tx(priv, buffer);
>  
> -	return 1;
> +	return 0;

NETDEV_TX_OK.

And now you can make all of these functions properly return netdev_tx_t instead of int.