USB: Mark EHCI LPM functions as __maybe_unused
ehci_lpm_set_da and ehci_lpm_check are EHCI 1.1 specific functions which
are not used on many platforms but do generate annoying gcc warnings
Signed-off-by: Maksim Rayskiy <mrayskiy@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/host/ehci-lpm.c b/drivers/usb/host/ehci-lpm.c
index b4d4d63..2111627a 100644
--- a/drivers/usb/host/ehci-lpm.c
+++ b/drivers/usb/host/ehci-lpm.c
@@ -17,7 +17,8 @@
*/
/* this file is part of ehci-hcd.c */
-static int ehci_lpm_set_da(struct ehci_hcd *ehci, int dev_addr, int port_num)
+static int __maybe_unused ehci_lpm_set_da(struct ehci_hcd *ehci,
+ int dev_addr, int port_num)
{
u32 __iomem portsc;
@@ -37,7 +38,7 @@
* this function is used to check if the device support LPM
* if yes, mark the PORTSC register with PORT_LPM bit
*/
-static int ehci_lpm_check(struct ehci_hcd *ehci, int port)
+static int __maybe_unused ehci_lpm_check(struct ehci_hcd *ehci, int port)
{
u32 __iomem *portsc ;
u32 val32;