PCI: Remove unused Optimized Buffer Flush/Fill support

My philosophy is unused code is dead code.  And dead code is subject to bit
rot and is a likely source of bugs.  Use it or lose it.

This reverts 48a92a8179b3 ("PCI: add OBFF enable/disable support"),
removing these interfaces:

    pci_enable_obff()
    pci_disable_obff()

[bhelgaas: split to separate patch, also remove prototypes from pci.h]
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 0 insertions, 16 deletions

diff --git a/include/linux/pci.h b/include/linux/pci.h
index ee26454746ba..b8cbe52c7a48 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1002,13 +1002,6 @@ static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state,
 void pci_enable_ido(struct pci_dev *dev, unsigned long type);
 void pci_disable_ido(struct pci_dev *dev, unsigned long type);
 
-enum pci_obff_signal_type {
-	PCI_EXP_OBFF_SIGNAL_L0 = 0,
-	PCI_EXP_OBFF_SIGNAL_ALWAYS = 1,
-};
-int pci_enable_obff(struct pci_dev *dev, enum pci_obff_signal_type);
-void pci_disable_obff(struct pci_dev *dev);
-
 /* For use by arch with custom probe code */
 void set_pcie_port_type(struct pci_dev *pdev);
 void set_pcie_hotplug_bridge(struct pci_dev *pdev);
@@ -1427,15 +1420,6 @@ static inline void pci_disable_ido(struct pci_dev *dev, unsigned long type)
 {
 }
 
-static inline int pci_enable_obff(struct pci_dev *dev, unsigned long type)
-{
-	return 0;
-}
-
-static inline void pci_disable_obff(struct pci_dev *dev)
-{
-}
-
 static inline int pci_request_regions(struct pci_dev *dev, const char *res_name)
 {
 	return -EIO;