linux-kernel - Re: [PATCH 07/15] tty: serial: 8250_dma: enqueue RX dma again on completion.

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Date:	Mon, 18 Aug 2014 11:52:49 +0100
From:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
To:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	tony@...mide.com, balbi@...com, Vinod Koul <vinod.koul@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 07/15] tty: serial: 8250_dma: enqueue RX dma again on
 completion.


>  		if (!up->dma || dma_err)
>  			status = serial8250_rx_chars(up, status);
> +
> +		if (dma_err && port->type == PORT_OMAP_16750)
> +			serial8250_rx_dma(up, 0);

Can we stick to a 'has dma' flag and port->rx_dma() type usages so that
we don't have to rewrite it again to add them the next slightly odd DMA
user we add 8)

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