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 <wangyij...@huawei.com>
Cc: xjtu...@gmail.com
Cc: lindar_...@usish.com
Cc: "James E.J. Bottomley" <jbottom...@parallels.com>
Cc: linux-scsi@vger.kernel.org
---
drivers/scsi/pm8001/pm8001_init.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/pm8001/pm8001_init.c
b/drivers/scsi/pm8001/pm8001_init.c
index 3861aa1..1ee61e8 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -734,7 +734,7 @@ 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,
--
1.7.1
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