[PATCH net-next] virtio-net: mark PM functions as __maybe_unused

David Miller
Wed, 26 Jul 2017 04:23:13 -0000

From: Arnd Bergmann <arnd at arndb.de>
Date: Tue, 25 Jul 2017 17:35:50 +0200

> After removing the reset function, the freeze and restore functions
> are now unused when CONFIG_PM_SLEEP is disabled:
>
> drivers/net/virtio_net.c:1881:12: error: 'virtnet_restore_up'
defined but not used [-Werror=unused-function]
>  static int virtnet_restore_up(struct virtio_device *vdev)
> drivers/net/virtio_net.c:1859:13: error: 'virtnet_freeze_down'
defined but not used [-Werror=unused-function]
>  static void virtnet_freeze_down(struct virtio_device *vdev)
>
> A more robust way to do this is to remove the #ifdef around the callers
> and instead mark them as __maybe_unused. The compiler will now just
> silently drop the unused code.
>
> Fixes: 4941d472bf95 ("virtio-net: do not reset during XDP set")
> Signed-off-by: Arnd Bergmann <arnd at arndb.de>

Applied, thanks.