From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@prisktech.co.nz (Tony Prisk) Date: Wed, 27 Mar 2013 18:28:00 +1300 Subject: [PATCHv2] usb: ehci: unlink_empty_async_suspended() only used with CONFIG_PM Message-ID: <1364362080-8489-1-git-send-email-linux@prisktech.co.nz> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Compiling with !CONFIG_PM generates an unused function warning on unlink_empty_async_suspended(). Enclose the function in a #ifdef CONFIG_PM Signed-off-by: Tony Prisk Acked-by: Alan Stern --- v2: Tidy up blank line as requested by Alan Stern drivers/usb/host/ehci-q.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 23d1369..1ea4de1 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -1316,6 +1316,7 @@ static void unlink_empty_async(struct ehci_hcd *ehci) } } +#ifdef CONFIG_PM /* The root hub is suspended; unlink all the async QHs */ static void unlink_empty_async_suspended(struct ehci_hcd *ehci) { @@ -1328,6 +1329,7 @@ static void unlink_empty_async_suspended(struct ehci_hcd *ehci) } start_iaa_cycle(ehci, false); } +#endif /* makes sure the async qh will become idle */ /* caller must own ehci->lock */ -- 1.7.9.5