From: "Yu, Luming" <luming.yu@intel.com>
To: linux-ia64@vger.kernel.org
Subject: [Linux-ia64] entry->irq = entry->link.index (problem 2 of thread [ Re: patch for updating IA64 ACPI
Date: Mon, 23 Jun 2003 07:13:18 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105635248609013@msgid-missing> (raw)
> @@ -248,6 +253,8 @@
> return_VALUE(0);
> }
>
> + entry->irq = entry->link.index;
> +
> if (!entry->irq && entry->link.handle) {
> entry->irq = acpi_pci_link_get_irq(entry->link.handle, entry->link.index);
> if (!entry->irq) {
> I don't quite understand what this is for. Anyone know?
To understand the meaning of entry->link.index, please reference acpi_get_prt which is in arch/ia64/kernel/acpi.c.
There is vector[i].irq = entry->link.index , entry is acpi_prt_entry. And you can look into mp_parse_prt
which is in arch/i386/kernel/mpparse.c. There is irq = entry->link.index.
Here, "entry->irq = entry->link.index" just make sure that a default initial irq value is assigned according to prt entry.
Thanks,
Luming
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next reply other threads:[~2003-06-23 7:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-23 7:13 Yu, Luming [this message]
2003-06-23 18:27 ` [Linux-ia64] entry->irq = entry->link.index (problem 2 of thread [ Re: patch for updating IA64 A David Mosberger
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