From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Andrew Jones <drjones@redhat.com>,
xen-devel@lists.xensource.com,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
linux-kernel@vger.kernel.org,
Tomi Valkeinen <tomi.valkeinen@ti.com>,
David Vrabel <david.vrabel@citrix.com>,
linux-fbdev@vger.kernel.org, boris.ostrovsky@oracle.com,
Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Subject: Re: [PATCH] xen kconfig: clarify INPUT_XEN_KBDDEV_FRONTEND select
Date: Tue, 16 Feb 2016 12:35:26 +0100 [thread overview]
Message-ID: <2801550.oZPkqjv8nW@wuerfel> (raw)
In-Reply-To: <alpine.DEB.2.02.1602151643150.27008@kaball.uk.xensource.com>
On Monday 15 February 2016 16:51:08 Stefano Stabellini wrote:
> >
> > diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
> > index 8ea45a5cd806..fd3d6fd290a9 100644
> > --- a/drivers/video/fbdev/Kconfig
> > +++ b/drivers/video/fbdev/Kconfig
> > @@ -2241,6 +2241,7 @@ config FB_VIRTUAL
> > config XEN_FBDEV_FRONTEND
> > tristate "Xen virtual frame buffer support"
> > depends on FB && XEN
> > + depends on INPUT || !INPUT_MISC
> > select FB_SYS_FILLRECT
> > select FB_SYS_COPYAREA
> > select FB_SYS_IMAGEBLIT
>
> This looks very hackish. Couldn't we just do the following?
>
> diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
> index 8ea45a5..3c15f6d 100644
> --- a/drivers/video/fbdev/Kconfig
> +++ b/drivers/video/fbdev/Kconfig
> @@ -2246,7 +2246,7 @@ config XEN_FBDEV_FRONTEND
> select FB_SYS_IMAGEBLIT
> select FB_SYS_FOPS
> select FB_DEFERRED_IO
> - select INPUT_XEN_KBDDEV_FRONTEND if INPUT_MISC
> + select INPUT_XEN_KBDDEV_FRONTEND if (INPUT && INPUT_MISC)
> select XEN_XENBUS_FRONTEND
> default y
> help
>
No, that doesn't solve the problem:
If XEN_FBDEV_FRONTEND=y, INPUT=m and INPUT_MISC=y, we would still
get INPUT_XEN_KBDDEV_FRONTEND=y, which cannot work because of INPUT=m.
INPUT_MISC already depends on INPUT, so your change has no effect
at all.
Arnd
next prev parent reply other threads:[~2016-02-16 11:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1455278707-2008263-1-git-send-email-arnd@arndb.de>
2016-02-15 16:51 ` [PATCH] xen kconfig: clarify INPUT_XEN_KBDDEV_FRONTEND select Stefano Stabellini
2016-02-15 17:05 ` David Vrabel
2016-02-15 17:08 ` Stefano Stabellini
2016-02-16 15:03 ` [PATCH v2] xen kconfig: don't "select INPUT_XEN_KBDDEV_FRONTEND" Arnd Bergmann
2016-02-16 16:55 ` Stefano Stabellini
2016-03-11 11:37 ` Tomi Valkeinen
2016-02-16 11:35 ` Arnd Bergmann [this message]
2016-02-16 12:14 ` [PATCH] xen kconfig: clarify INPUT_XEN_KBDDEV_FRONTEND select Stefano Stabellini
2016-02-16 15:05 ` Arnd Bergmann
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