diff mbox

[3/3] tty: hvc_xen: hide xen_console_remove when unused

Message ID 1453758918-3577213-3-git-send-email-arnd@arndb.de (mailing list archive)
State Not Applicable
Headers show

Commit Message

Arnd Bergmann Jan. 25, 2016, 9:54 p.m. UTC
xencons_disconnect_backend() is only called from xen_console_remove(),
which is conditionally compiled, so we get a harmless warning when
CONFIG_HVC_XEN_FRONTEND is unset:

hvc/hvc_xen.c:350:12: error: 'xen_console_remove' defined but not used [-Werror=unused-function]

This moves the function down into the same #ifdef section to silence
the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/tty/hvc/hvc_xen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Boris Ostrovsky Jan. 25, 2016, 11:05 p.m. UTC | #1
On 01/25/2016 04:54 PM, Arnd Bergmann wrote:
> xencons_disconnect_backend() is only called from xen_console_remove(),

and also from xencons_probe()/xencons_resume(). But those two are also 
under the
same ifdef.

-boris

> which is conditionally compiled, so we get a harmless warning when
> CONFIG_HVC_XEN_FRONTEND is unset:
>
> hvc/hvc_xen.c:350:12: error: 'xen_console_remove' defined but not used [-Werror=unused-function]
>
> This moves the function down into the same #ifdef section to silence
> the warning.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>   drivers/tty/hvc/hvc_xen.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
> index fa816b7193b6..11725422dacb 100644
> --- a/drivers/tty/hvc/hvc_xen.c
> +++ b/drivers/tty/hvc/hvc_xen.c
> @@ -323,6 +323,7 @@ void xen_console_resume(void)
>   	}
>   }
>   
> +#ifdef CONFIG_HVC_XEN_FRONTEND
>   static void xencons_disconnect_backend(struct xencons_info *info)
>   {
>   	if (info->irq > 0)
> @@ -363,7 +364,6 @@ static int xen_console_remove(struct xencons_info *info)
>   	return 0;
>   }
>   
> -#ifdef CONFIG_HVC_XEN_FRONTEND
>   static int xencons_remove(struct xenbus_device *dev)
>   {
>   	return xen_console_remove(dev_get_drvdata(&dev->dev));
Stefano Stabellini Jan. 26, 2016, 12:25 p.m. UTC | #2
On Mon, 25 Jan 2016, Boris Ostrovsky wrote:
> On 01/25/2016 04:54 PM, Arnd Bergmann wrote:
> > xencons_disconnect_backend() is only called from xen_console_remove(),
> 
> and also from xencons_probe()/xencons_resume(). But those two are also under
> the
> same ifdef.

Good point. Aside from this the patch is good.

 
> > which is conditionally compiled, so we get a harmless warning when
> > CONFIG_HVC_XEN_FRONTEND is unset:
> > 
> > hvc/hvc_xen.c:350:12: error: 'xen_console_remove' defined but not used
> > [-Werror=unused-function]
> > 
> > This moves the function down into the same #ifdef section to silence
> > the warning.
> > 
> > Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> > ---
> >   drivers/tty/hvc/hvc_xen.c | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
> > index fa816b7193b6..11725422dacb 100644
> > --- a/drivers/tty/hvc/hvc_xen.c
> > +++ b/drivers/tty/hvc/hvc_xen.c
> > @@ -323,6 +323,7 @@ void xen_console_resume(void)
> >   	}
> >   }
> >   +#ifdef CONFIG_HVC_XEN_FRONTEND
> >   static void xencons_disconnect_backend(struct xencons_info *info)
> >   {
> >   	if (info->irq > 0)
> > @@ -363,7 +364,6 @@ static int xen_console_remove(struct xencons_info *info)
> >   	return 0;
> >   }
> >   -#ifdef CONFIG_HVC_XEN_FRONTEND
> >   static int xencons_remove(struct xenbus_device *dev)
> >   {
> >   	return xen_console_remove(dev_get_drvdata(&dev->dev));
>
diff mbox

Patch

diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index fa816b7193b6..11725422dacb 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -323,6 +323,7 @@  void xen_console_resume(void)
 	}
 }
 
+#ifdef CONFIG_HVC_XEN_FRONTEND
 static void xencons_disconnect_backend(struct xencons_info *info)
 {
 	if (info->irq > 0)
@@ -363,7 +364,6 @@  static int xen_console_remove(struct xencons_info *info)
 	return 0;
 }
 
-#ifdef CONFIG_HVC_XEN_FRONTEND
 static int xencons_remove(struct xenbus_device *dev)
 {
 	return xen_console_remove(dev_get_drvdata(&dev->dev));