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    Subject[PATCH 4.1 67/84] PCI: Restore PCI_MSIX_FLAGS_BIRMASK definition
    Date
    4.1-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: "Michael S. Tsirkin" <mst@redhat.com>

    commit c9ddbac9c89110f77cb0fa07e634aaf1194899aa upstream.

    09a2c73ddfc7 ("PCI: Remove unused PCI_MSIX_FLAGS_BIRMASK definition")
    removed PCI_MSIX_FLAGS_BIRMASK from an exported header because it was
    unused in the kernel. But that breaks user programs that were using it
    (QEMU in particular).

    Restore the PCI_MSIX_FLAGS_BIRMASK definition.

    [bhelgaas: changelog]
    Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
    Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    include/uapi/linux/pci_regs.h | 1 +
    1 file changed, 1 insertion(+)

    --- a/include/uapi/linux/pci_regs.h
    +++ b/include/uapi/linux/pci_regs.h
    @@ -319,6 +319,7 @@
    #define PCI_MSIX_PBA 8 /* Pending Bit Array offset */
    #define PCI_MSIX_PBA_BIR 0x00000007 /* BAR index */
    #define PCI_MSIX_PBA_OFFSET 0xfffffff8 /* Offset into specified BAR */
    +#define PCI_MSIX_FLAGS_BIRMASK PCI_MSIX_PBA_BIR /* deprecated */
    #define PCI_CAP_MSIX_SIZEOF 12 /* size of MSIX registers */

    /* MSI-X Table entry format */



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