PCI: Add mask bit definition for MSI-X table

Then we can use it instead of magic number 1.

Reviewed-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h
index b21d33e4bc2a..d4f2c80a6c3e 100644
--- a/include/linux/pci_regs.h
+++ b/include/linux/pci_regs.h
@@ -315,6 +315,7 @@
 #define  PCI_MSIX_ENTRY_UPPER_ADDR      4
 #define  PCI_MSIX_ENTRY_DATA            8
 #define  PCI_MSIX_ENTRY_VECTOR_CTRL     12
+#define   PCI_MSIX_ENTRY_CTRL_MASKBIT   1
 
 /* CompactPCI Hotswap Register */