diff options
| author | Jon Mason <jdmason@kudzu.us> | 2011-06-27 17:39:54 +0000 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2011-07-18 12:01:22 -0700 |
| commit | 9b89925c0d8f7d1cc203682df4fab847a7b4b7ec (patch) | |
| tree | 893fd9d8e76a777a3c4cdfd2e89afdbea28b9a51 | |
| parent | cdb73db0b6bf7a1bcf5c788f0c8f803facb6e517 (diff) | |
| download | lwn-9b89925c0d8f7d1cc203682df4fab847a7b4b7ec.tar.gz lwn-9b89925c0d8f7d1cc203682df4fab847a7b4b7ec.zip | |
IB/mthca: Remove unnecessary read of PCI_CAP_ID_EXP
The PCIE capability offset is saved during PCI bus walking. It will
remove an unnecessary search in the PCI configuration space if this
value is referenced instead of reacquiring it. Also, pci_is_pcie is a
better way of determining if the device is PCIE or not (as it uses the
same saved PCIE capability offset).
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Roland Dreier <roland@purestorage.com>
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_main.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_reset.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c index f9834766e37b..aa12a533ae9e 100644 --- a/drivers/infiniband/hw/mthca/mthca_main.c +++ b/drivers/infiniband/hw/mthca/mthca_main.c @@ -149,7 +149,7 @@ static int mthca_tune_pci(struct mthca_dev *mdev) } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE)) mthca_info(mdev, "No PCI-X capability, not setting RBC.\n"); - if (pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) { + if (pci_is_pcie(mdev->pdev)) { if (pcie_set_readrq(mdev->pdev, 4096)) { mthca_err(mdev, "Couldn't write PCI Express read request, " "aborting.\n"); diff --git a/drivers/infiniband/hw/mthca/mthca_reset.c b/drivers/infiniband/hw/mthca/mthca_reset.c index 2a13a163d337..4fa3534ec233 100644 --- a/drivers/infiniband/hw/mthca/mthca_reset.c +++ b/drivers/infiniband/hw/mthca/mthca_reset.c @@ -113,7 +113,7 @@ int mthca_reset(struct mthca_dev *mdev) } hca_pcix_cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX); - hca_pcie_cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP); + hca_pcie_cap = pci_pcie_cap(mdev->pdev); if (bridge) { bridge_header = kmalloc(256, GFP_KERNEL); |