On Tue, Feb 18, 2014 at 12:47:41PM -0600, Felipe Balbi wrote:
> On Tue, Feb 18, 2014 at 10:00:30AM -0800, David Cohen wrote:
> > Hi Sarah,
> >
> > On Mon, Jan 06, 2014 at 07:02:19PM -0800, David Cohen wrote:
> > > When CONFIG_PCI and CONFIG_PM are not selected, xhci.c gets this
> > > warning:
> > > drivers/usb/host/xhci.c:409:13: warning: ‘xhci_msix_sync_irqs’ defined
> > > but not used [-Wunused-function]
> > >
> > > It happens due to lack of __maybe_unused flag on xhci_msix_sync_irqs()
> > > function in case of !CONFIG_PCI.
> > >
> > > Signed-off-by: David Cohen <david.a.cohen@xxxxxxxxxxxxxxx>
> > > ---
> >
> > Ping :)
> > Any comments here?
> >
> > Br, David
> >
> > >
> > > Change v1 -> v2:
> > > - xhci_msix_sync_irqs() already uses __maybe_unused flag when CONFIG_PCI is
> > > set. Proper solution is to add same flag when !CONFIG_PCI instead of define
> > > function as inline.
> > >
> > > drivers/usb/host/xhci.c | 2 +-
> > > 1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
> > > index 4265b48856f6..ed6b717b8ee1 100644
> > > --- a/drivers/usb/host/xhci.c
> > > +++ b/drivers/usb/host/xhci.c
> > > @@ -406,7 +406,7 @@ static void xhci_cleanup_msix(struct xhci_hcd *xhci)
> > > {
> > > }
> > >
> > > -static void xhci_msix_sync_irqs(struct xhci_hcd *xhci)
> > > +static void __maybe_unused xhci_msix_sync_irqs(struct xhci_hcd *xhci)
>
> bellow is likely a better fix. Usually stubs are marked inline, rather
> than getting an unused attribute:
Thanks for commenting. That would be actually the v1 of my patch :)
I changed after I see the proper function has __maybe_unused flag.
But I'm fine with Sarah picking any of the patch's versions.
Br, David
>
> diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
> index 3712359..8f1a6d5 100644
> --- a/drivers/usb/host/xhci.c
> +++ b/drivers/usb/host/xhci.c
> @@ -404,16 +404,16 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd)
>
> #else
>
> -static int xhci_try_enable_msi(struct usb_hcd *hcd)
> +static inline int xhci_try_enable_msi(struct usb_hcd *hcd)
> {
> return 0;
> }
>
> -static void xhci_cleanup_msix(struct xhci_hcd *xhci)
> +static inline void xhci_cleanup_msix(struct xhci_hcd *xhci)
> {
> }
>
> -static void xhci_msix_sync_irqs(struct xhci_hcd *xhci)
> +static inline void xhci_msix_sync_irqs(struct xhci_hcd *xhci)
> {
> }
>
>
> --
> balbi
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