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| author | Yijing Wang <wangyijing@huawei.com> | 2013-08-08 21:13:54 +0800 |
|---|---|---|
| committer | Matt Turner <mattst88@gmail.com> | 2015-05-26 10:01:44 -0700 |
| commit | ebdd117e5aab748d06f872860f36a0b09d8aadfc (patch) | |
| tree | ecd94dc5f3642e4104a1355b63834fe2cc523adf /arch/alpha | |
| parent | a8b253b9f253c05e5e10b829b8d1fb24556f4b56 (diff) | |
| download | linux-ebdd117e5aab748d06f872860f36a0b09d8aadfc.tar.gz linux-ebdd117e5aab748d06f872860f36a0b09d8aadfc.tar.bz2 linux-ebdd117e5aab748d06f872860f36a0b09d8aadfc.zip | |
alpha: 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 <wangyijing@huawei.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Matt Turner <mattst88@gmail.com>
Cc: Phil Carmody <pc+lkml@asdf.org>
Cc: linux-alpha@vger.kernel.org
Signed-off-by: Matt Turner <mattst88@gmail.com>
Diffstat (limited to 'arch/alpha')
| -rw-r--r-- | arch/alpha/kernel/sys_marvel.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c index f21d61fab678..24e41bd7d3c9 100644 --- a/arch/alpha/kernel/sys_marvel.c +++ b/arch/alpha/kernel/sys_marvel.c @@ -331,7 +331,7 @@ marvel_map_irq(const struct pci_dev *cdev, u8 slot, u8 pin) pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &intline); irq = intline; - msi_loc = pci_find_capability(dev, PCI_CAP_ID_MSI); + msi_loc = dev->msi_cap; msg_ctl = 0; if (msi_loc) pci_read_config_word(dev, msi_loc + PCI_MSI_FLAGS, &msg_ctl); |