Make use of the new pci_enable_msi_partial() interface and conserve on othewise wasted interrupt resources for 10 out of 16 unused MSI vectors on Intel chipsets. Cc: x86@xxxxxxxxxx Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx Cc: iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx Cc: linux-ide@xxxxxxxxxxxxxxx Cc: linux-pci@xxxxxxxxxxxxxxx Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxx> --- drivers/ata/ahci.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 6070781..0c7a0f3 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1194,7 +1194,7 @@ static int ahci_init_interrupts(struct pci_dev *pdev, unsigned int n_ports, if (nvec < n_ports) goto single_msi; - rc = pci_enable_msi_exact(pdev, nvec); + rc = pci_enable_msi_partial(pdev, n_ports, nvec); if (rc == -ENOSPC) goto single_msi; else if (rc < 0) @@ -1207,7 +1207,7 @@ static int ahci_init_interrupts(struct pci_dev *pdev, unsigned int n_ports, goto single_msi; } - return nvec; + return n_ports; single_msi: if (pci_enable_msi(pdev)) -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
