USB: Mark ehci_adjust_port_wakeup_flags as __maybe_unused

Mark ehci_adjust_port_wakeup_flags as __maybe_unused to avoid the following
warning when building the ehci-mxc driver:

  CC      drivers/usb/host/ehci-hcd.o
drivers/usb/host/ehci-hub.c:130: warning: 'ehci_adjust_port_wakeup_flags' defined but not used

Current ehci-mxc driver implementation does not support suspend/resume.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index d05ea03cfb4d..1a21799195af 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -127,7 +127,7 @@ static int ehci_port_change(struct ehci_hcd *ehci)
         return 0;
 }
 
-static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci,
+static __maybe_unused void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci,
                 bool suspending, bool do_wakeup)
 {
         int             port;