Re: [Xen-devel] [PATCH] xen: more robust serial port driver

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 28/07/2009 15:07, "Christoph Egger" <Christoph.Egger@xxxxxxx> wrote:

> 
> Attached patch adds a check if the fifo is usable before we
> actually use it.

I count that at least the first two chunks and the initialisation of
tx_fifo_size are unnecessary. Might this be the case for the udelay(100) as
well? And what kinds of systems have these broken UARTs that half-advertise
a broken/non-existent FIFO?

 -- Keir



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