usb: ehci-atmel: use __maybe_unused to hide pm functions
authorArnd Bergmann <arnd@arndb.de>
Wed, 2 Mar 2016 15:24:06 +0000 (16:24 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 4 Mar 2016 04:37:41 +0000 (20:37 -0800)
commit9fc7c85dc49116cb8209321ae343a26b82b37d2f
treed2e309733c5e6a3e2cc42c9293effd35b76760c1
parentd29051930becb9c63a9b13409722090e701cdacc
usb: ehci-atmel: use __maybe_unused to hide pm functions

The ehci-atmel driver uses #ifdef to check for CONFIG_PM, but then
uses SIMPLE_DEV_PM_OPS, which leaves the references out when
CONFIG_PM_SLEEP is not defined, so we get a warning with
PM=y && PM_SLEEP=n:

drivers/usb/host/ehci-atmel.c:189:12: error: 'ehci_atmel_drv_suspend' defined but not used [-Werror=unused-function]
drivers/usb/host/ehci-atmel.c:203:12: error: 'ehci_atmel_drv_resume' defined but not used [-Werror=unused-function]

This removes the incorrect #ifdef and instead uses a __maybe_unused
annotation to let the compiler know it can silently drop
the function definition.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/host/ehci-atmel.c