diff mbox

[01/16] bnx2: clean up unnecessary MSI/MSI-X capability find

Message ID 1375966942-2052-1-git-send-email-wangyijing@huawei.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Yijing Wang Aug. 8, 2013, 1:02 p.m. UTC
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 <wangyijing@huawei.com>
Cc: Michael Chan <mchan@broadcom.com>
Cc: netdev@vger.kernel.org
---
 drivers/net/ethernet/broadcom/bnx2.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

Comments

David Miller Aug. 9, 2013, 8:50 p.m. UTC | #1
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 8 Aug 2013 21:02:22 +0800

> 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 <wangyijing@huawei.com>

Applied.
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diff mbox

Patch

diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index 6a2de1d..7c408cd 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -8170,13 +8170,13 @@  bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
 
 	if (BNX2_CHIP(bp) == BNX2_CHIP_5709 &&
 	    BNX2_CHIP_REV(bp) != BNX2_CHIP_REV_Ax) {
-		if (pci_find_capability(pdev, PCI_CAP_ID_MSIX))
+		if (pdev->msix_cap)
 			bp->flags |= BNX2_FLAG_MSIX_CAP;
 	}
 
 	if (BNX2_CHIP_ID(bp) != BNX2_CHIP_ID_5706_A0 &&
 	    BNX2_CHIP_ID(bp) != BNX2_CHIP_ID_5706_A1) {
-		if (pci_find_capability(pdev, PCI_CAP_ID_MSI))
+		if (pdev->msi_cap)
 			bp->flags |= BNX2_FLAG_MSI_CAP;
 	}