From: Yijing Wang Date: Thu, 8 Aug 2013 13:10:21 +0000 (+0800) Subject: [SCSI] pm8001: clean up unnecessary MSI/MSI-X capability find X-Git-Tag: firefly_0821_release~176^2~5295^2~110 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e1e819cc9608760e9b5d094f8198c33238b01336;p=firefly-linux-kernel-4.4.55.git [SCSI] pm8001: 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 Acked-by: lindar_liu Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index 44c2f825eb3e..f7c189606b84 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -735,7 +735,7 @@ static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha) pdev = pm8001_ha->pdev; #ifdef PM8001_USE_MSIX - if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) + if (pdev->msix_cap) return pm8001_setup_msix(pm8001_ha); else { PM8001_INIT_DBG(pm8001_ha,