From: Yijing Wang Date: Thu, 8 Aug 2013 13:02:44 +0000 (+0800) Subject: myri10ge: clean up unnecessary MSI/MSI-X capability find X-Git-Tag: v3.12-rc1~132^2~312 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=40b295625053954f69d6840d59f2b4d8be251ed3;p=profile%2Fivi%2Fkernel-x86-ivi.git myri10ge: clean up unnecessary MSI/MSI-X capability find PCI core will initialize device MSI/MSI-X capability in pci_msi_init_pci_dev(). So device driver should use pci_dev->msi_cap/msix_cap to determine whether the device support MSI/MSI-X instead of using pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX). Access to PCIe device config space again will consume more time. Signed-off-by: Yijing Wang Cc: Andrew Gallatin Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c index d4cdf4d..66c0400 100644 --- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c +++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c @@ -3625,13 +3625,12 @@ static void myri10ge_probe_slices(struct myri10ge_priv *mgp) struct pci_dev *pdev = mgp->pdev; char *old_fw; bool old_allocated; - int i, status, ncpus, msix_cap; + int i, status, ncpus; mgp->num_slices = 1; - msix_cap = pci_find_capability(pdev, PCI_CAP_ID_MSIX); ncpus = netif_get_num_default_rss_queues(); - if (myri10ge_max_slices == 1 || msix_cap == 0 || + if (myri10ge_max_slices == 1 || !pdev->msix_cap || (myri10ge_max_slices == -1 && ncpus < 2)) return;