Messages in this thread Patch in this message | | | Date | Fri, 26 Sep 2003 18:21:28 -0700 | From | Chris Wright <> | Subject | [PATCH] ACPI pci irq routing fix |
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If irq.active is set from _CRS, make sure to use it, rather than trying anything from the from the _PRS list, as some machines don't handle this properly. This patch is against current linux-acpi-test-2.6.0. It's been floating about for a while, and fixes bug #1186.
Patch originally from Andrew de Quincey.
thanks, -chris -- Linux Security Modules http://lsm.immunix.org http://lsm.bkbits.net
===== drivers/acpi/pci_link.c 1.19 vs edited ===== --- 1.19/drivers/acpi/pci_link.c Thu Sep 18 11:29:36 2003 +++ edited/drivers/acpi/pci_link.c Fri Sep 26 14:36:15 2003 @@ -500,15 +500,15 @@ irq = link->irq.active; } else { irq = link->irq.possible[0]; - } - /* - * Select the best IRQ. This is done in reverse to promote - * the use of IRQs 9, 10, 11, and >15. - */ - for (i=(link->irq.possible_count-1); i>0; i--) { - if (acpi_irq_penalty[irq] > acpi_irq_penalty[link->irq.possible[i]]) - irq = link->irq.possible[i]; + /* + * Select the best IRQ. This is done in reverse to promote + * the use of IRQs 9, 10, 11, and >15. + */ + for (i=(link->irq.possible_count-1); i>0; i--) { + if (acpi_irq_penalty[irq] > acpi_irq_penalty[link->irq.possible[i]]) + irq = link->irq.possible[i]; + } } /* Attempt to enable the link device at this IRQ. */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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