msi: fix the ordering of msix irqs
"Mike Miller (OS Dev)" <mikem@beardog.cca.cpqcorp.net> writes: Found what seems the problem with our vectors being listed backward. In drivers/pci/msi.c we should be using list_add_tail rather than list_add to preserve the ordering across various kernels. Please consider this for inclusion. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Screwed-up-by: Michael Ellerman <michael@ellerman.id.au> Cc: "Mike Miller (OS Dev)" <mikem@beardog.cca.cpqcorp.net> Cc: Andi Kleen <ak@suse.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -333,7 +333,7 @@ static int msi_capability_init(struct pci_dev *dev)
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msi_mask_bits_reg(pos, is_64bit_address(control)),
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maskbits);
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}
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list_add(&entry->list, &dev->msi_list);
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list_add_tail(&entry->list, &dev->msi_list);
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/* Configure MSI capability structure */
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ret = arch_setup_msi_irqs(dev, 1, PCI_CAP_ID_MSI);
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@ -404,7 +404,7 @@ static int msix_capability_init(struct pci_dev *dev,
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entry->dev = dev;
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entry->mask_base = base;
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list_add(&entry->list, &dev->msi_list);
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list_add_tail(&entry->list, &dev->msi_list);
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}
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ret = arch_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSIX);
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