Messages in this thread Patch in this message | | | From | Myron Stowe <> | Subject | [PATCH 2/4] PCI: Remove redundant checking in PCI Express capability routines | Date | Fri, 01 Jun 2012 15:16:31 -0600 |
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There are a number of redundant pci_is_pcie() checks in various PCI Express capabilities related routines like the following:
if (!pci_is_pcie(dev)) return false;
pos = pci_pcie_cap(dev); if (!pos) return false;
The current pci_is_pcie() implementation is merely:
static inline bool pci_is_pcie(struct pci_dev *dev) { return !!pci_pcie_cap(dev); }
so we can just drop the pci_is_pcie() test in such cases.
Suggested by Bjorn Helgaas in - http://marc.info/?l=linux-pci&m=130463494319762&w=2
Signed-off-by: Myron Stowe <myron.stowe@redhat.com> ---
drivers/pci/pci.c | 14 +------------- 1 files changed, 1 insertions(+), 13 deletions(-)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 64471b1..ff0beb0 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1995,7 +1995,7 @@ void pci_enable_ari(struct pci_dev *dev) return; bridge = dev->bus->self; - if (!bridge || !pci_is_pcie(bridge)) + if (!bridge) return; pos = pci_pcie_cap(bridge); @@ -2055,9 +2055,6 @@ void pci_disable_ido(struct pci_dev *dev, unsigned long type) int pos; u16 ctrl; - if (!pci_is_pcie(dev)) - return; - pos = pci_pcie_cap(dev); if (!pos) return; @@ -2097,9 +2094,6 @@ int pci_enable_obff(struct pci_dev *dev, enum pci_obff_signal_type type) u16 ctrl; int ret; - if (!pci_is_pcie(dev)) - return -ENOTSUPP; - pos = pci_pcie_cap(dev); if (!pos) return -ENOTSUPP; @@ -2150,9 +2144,6 @@ void pci_disable_obff(struct pci_dev *dev) int pos; u16 ctrl; - if (!pci_is_pcie(dev)) - return; - pos = pci_pcie_cap(dev); if (!pos) return; @@ -2175,9 +2166,6 @@ static bool pci_ltr_supported(struct pci_dev *dev) int pos; u32 cap; - if (!pci_is_pcie(dev)) - return false; - pos = pci_pcie_cap(dev); if (!pos) return false;
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