Re: [PATCH] VIA IRQ quirk fixup only in XT_PIC mode Take 2

From: Daniel Drake
Date: Tue Sep 05 2006 - 09:35:35 EST


Sergio Monteiro Basto wrote:
On Wed, 2006-08-30 at 12:13 -0400, Daniel Drake wrote:

about Linus suggestion : - new_irq = dev->irq & 0xf;
+ new_irq = dev->irq;
+ if (!new_irq || new_irq >= 15)
+ return;

no, we have problem with VIA SATA controllers which have irq lower than
15
Any chance you can provide a link to this example so that we can document the decision in the commit message?

http://lkml.org/lkml/2006/7/30/59

I'm confused. Heikki's report is about a sata_sil controller and he didn't include any dmesg output so I don't know how you can conclude that quirking an IRQ to something less than 15 was the fix...

Also note that the fix was *not* quirking the device at all (your patch ensured that the quirks didn't run because IO-APIC was enabled), this hardly seems like an accurate way of arguing that quirks that change the IRQ to something less than 15 are *required*...

Daniel


Daniel

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