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Re: [Xen-devel] [PATCH] xen: more robust serial port driver
| To: | Christoph Egger <Christoph.Egger@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] xen: more robust serial port driver |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Tue, 28 Jul 2009 15:15:42 +0100 |
| Cc: | |
| Delivery-date: | Tue, 28 Jul 2009 07:16:37 -0700 |
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| In-reply-to: | <200907281607.06109.Christoph.Egger@xxxxxxx> |
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| Thread-index: | AcoPjN77Aess9kIXTaeNzDsCAt9sUQAAQTO/ |
| Thread-topic: | [Xen-devel] [PATCH] xen: more robust serial port driver |
| User-agent: | Microsoft-Entourage/12.20.0.090605 |
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 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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