PCI: add pci_clear_flags()

Add a pci_clear_flags() for cases when we statically initialize
pci_flags, then decide to clear things out later.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/include/asm-generic/pci-bridge.h b/include/asm-generic/pci-bridge.h
index 4a5aca2a2c9442aecb1db3b6cbe74ea2b5739870..a5b5d5a89a4fe3fc87d2adb2de31b9ac58c74e61 100644 (file)
--- a/include/asm-generic/pci-bridge.h
+++ b/include/asm-generic/pci-bridge.h
@@ -45,6 +45,11 @@ static inline void pci_add_flags(int flags)
        pci_flags |= flags;
 }
 
+static inline void pci_clear_flags(int flags)
+{
+       pci_flags &= ~flags;
+}
+
 static inline int pci_has_flag(int flag)
 {
        return pci_flags & flag;
@@ -52,6 +57,7 @@ static inline int pci_has_flag(int flag)
 #else
 static inline void pci_set_flags(int flags) { }
 static inline void pci_add_flags(int flags) { }
+static inline void pci_clear_flags(int flags) { }
 static inline int pci_has_flag(int flag)
 {
        return 0;