[PATCH 05/10] powerpc: select ARCH_MIGHT_HAVE_PC_SERIO

[PATCH 05/10] powerpc: select ARCH_MIGHT_HAVE_PC_SERIO

[Mark Salter]

Architectures which might use an i8042 for serial IO to keyboard,
mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO.

Signed-off-by: Mark Salter <msalter@redhat.com>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Paul Mackerras <paulus@samba.org>
CC: linuxppc-dev@lists.ozlabs.org
---
 arch/powerpc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index b44b52c..fb75485 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -86,6 +86,7 @@ config PPC
 	bool
 	default y
 	select ARCH_MIGHT_HAVE_PC_PARPORT
+	select ARCH_MIGHT_HAVE_PC_SERIO
 	select BINFMT_ELF
 	select OF
 	select OF_EARLY_FLATTREE
-- 
1.8.3.1

[PATCH 10/10] Kconfig: cleanup SERIO_I8042 dependencies

[Mark Salter]

Remove messy dependencies from SERIO_I8042 by having it depend on one
Kconfig symbol (ARCH_MIGHT_HAVE_PC_SERIO) and having architectures
which need it select ARCH_MIGHT_HAVE_PC_SERIO in arch/*/Kconfig.
New architectures are unlikely to need SERIO_I8042, so this avoids
having an ever growing list of architectures to exclude.

Signed-off-by: Mark Salter <msalter@redhat.com>
CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CC: Richard Henderson <rth@twiddle.net>
CC: linux-alpha@vger.kernel.org
CC: Russell King <linux@arm.linux.org.uk>
CC: linux-arm-kernel@lists.infradead.org
CC: Tony Luck <tony.luck@intel.com>
CC: Fenghua Yu <fenghua.yu@intel.com>
CC: linux-ia64@vger.kernel.org
CC: Ralf Baechle <ralf@linux-mips.org>
CC: linux-mips@linux-mips.org
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Paul Mackerras <paulus@samba.org>
CC: linuxppc-dev@lists.ozlabs.org
CC: Paul Mundt <lethal@linux-sh.org>
CC: linux-sh@vger.kernel.org
CC: "David S. Miller" <davem@davemloft.net>
CC: sparclinux@vger.kernel.org
CC: Guan Xuetao <gxt@mprc.pku.edu.cn>
CC: Ingo Molnar <mingo@redhat.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: x86@kernel.org
---
 drivers/input/serio/Kconfig | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index 8541f94..1f5cec2 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -16,14 +16,19 @@ config SERIO
 	  To compile this driver as a module, choose M here: the
 	  module will be called serio.
 
+config ARCH_MIGHT_HAVE_PC_SERIO
+	bool
+	help
+	  Select this config option from the architecture Kconfig if
+	  the architecture might use a PC serio device (i8042) to
+          communicate with keyboard, mouse, etc.
+
 if SERIO
 
 config SERIO_I8042
 	tristate "i8042 PC Keyboard controller"
 	default y
-	depends on !PARISC && (!ARM || FOOTBRIDGE_HOST) && \
-		   (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN && !S390 && \
-		   !ARC
+	depends on ARCH_MIGHT_HAVE_PC_SERIO
 	help
 	  i8042 is the chip over which the standard AT keyboard and PS/2
 	  mouse are connected to the computer. If you use these devices,
-- 
1.8.3.1

Re: [PATCH 10/10] Kconfig: cleanup SERIO_I8042 dependencies

[H. Peter Anvin]

On 12/14/2013 08:59 AM, Mark Salter wrote:
> Remove messy dependencies from SERIO_I8042 by having it depend on one
> Kconfig symbol (ARCH_MIGHT_HAVE_PC_SERIO) and having architectures
> which need it select ARCH_MIGHT_HAVE_PC_SERIO in arch/*/Kconfig.
> New architectures are unlikely to need SERIO_I8042, so this avoids
> having an ever growing list of architectures to exclude.
> 
> Signed-off-by: Mark Salter <msalter@redhat.com>
> CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> CC: Richard Henderson <rth@twiddle.net>
> CC: linux-alpha@vger.kernel.org
> CC: Russell King <linux@arm.linux.org.uk>
> CC: linux-arm-kernel@lists.infradead.org
> CC: Tony Luck <tony.luck@intel.com>
> CC: Fenghua Yu <fenghua.yu@intel.com>
> CC: linux-ia64@vger.kernel.org
> CC: Ralf Baechle <ralf@linux-mips.org>
> CC: linux-mips@linux-mips.org
> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> CC: Paul Mackerras <paulus@samba.org>
> CC: linuxppc-dev@lists.ozlabs.org
> CC: Paul Mundt <lethal@linux-sh.org>
> CC: linux-sh@vger.kernel.org
> CC: "David S. Miller" <davem@davemloft.net>
> CC: sparclinux@vger.kernel.org
> CC: Guan Xuetao <gxt@mprc.pku.edu.cn>
> CC: Ingo Molnar <mingo@redhat.com>
> CC: Thomas Gleixner <tglx@linutronix.de>
> CC: "H. Peter Anvin" <hpa@zytor.com>
> CC: x86@kernel.org

Acked-by: H. Peter Anvin <hpa@linux.intel.com>

Re: [PATCH 10/10] Kconfig: cleanup SERIO_I8042 dependencies

[Dmitry Torokhov]

On Sat, Dec 14, 2013 at 10:32:31AM -0800, H. Peter Anvin wrote:
> On 12/14/2013 08:59 AM, Mark Salter wrote:
> > Remove messy dependencies from SERIO_I8042 by having it depend on one
> > Kconfig symbol (ARCH_MIGHT_HAVE_PC_SERIO) and having architectures
> > which need it select ARCH_MIGHT_HAVE_PC_SERIO in arch/*/Kconfig.
> > New architectures are unlikely to need SERIO_I8042, so this avoids
> > having an ever growing list of architectures to exclude.
> > 
> > Signed-off-by: Mark Salter <msalter@redhat.com>
> > CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> > CC: Richard Henderson <rth@twiddle.net>
> > CC: linux-alpha@vger.kernel.org
> > CC: Russell King <linux@arm.linux.org.uk>
> > CC: linux-arm-kernel@lists.infradead.org
> > CC: Tony Luck <tony.luck@intel.com>
> > CC: Fenghua Yu <fenghua.yu@intel.com>
> > CC: linux-ia64@vger.kernel.org
> > CC: Ralf Baechle <ralf@linux-mips.org>
> > CC: linux-mips@linux-mips.org
> > CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> > CC: Paul Mackerras <paulus@samba.org>
> > CC: linuxppc-dev@lists.ozlabs.org
> > CC: Paul Mundt <lethal@linux-sh.org>
> > CC: linux-sh@vger.kernel.org
> > CC: "David S. Miller" <davem@davemloft.net>
> > CC: sparclinux@vger.kernel.org
> > CC: Guan Xuetao <gxt@mprc.pku.edu.cn>
> > CC: Ingo Molnar <mingo@redhat.com>
> > CC: Thomas Gleixner <tglx@linutronix.de>
> > CC: "H. Peter Anvin" <hpa@zytor.com>
> > CC: x86@kernel.org
> 
> Acked-by: H. Peter Anvin <hpa@linux.intel.com>

How are we going to merge this? In bulk through input tree or peacemeal
through all arches first?

-- 
Dmitry

Re: [PATCH 10/10] Kconfig: cleanup SERIO_I8042 dependencies

[Mark Salter]

On Sun, 2013-12-15 at 02:36 -0800, Dmitry Torokhov wrote:
> On Sat, Dec 14, 2013 at 10:32:31AM -0800, H. Peter Anvin wrote:
> > On 12/14/2013 08:59 AM, Mark Salter wrote:
> > > Remove messy dependencies from SERIO_I8042 by having it depend on one
> > > Kconfig symbol (ARCH_MIGHT_HAVE_PC_SERIO) and having architectures
> > > which need it select ARCH_MIGHT_HAVE_PC_SERIO in arch/*/Kconfig.
> > > New architectures are unlikely to need SERIO_I8042, so this avoids
> > > having an ever growing list of architectures to exclude.

> How are we going to merge this? In bulk through input tree or peacemeal
> through all arches first?
> 

They should all go together to eliminate the chance of bisect breakage.
Either the input tree or maybe akpm tree.

Re: [PATCH 10/10] Kconfig: cleanup SERIO_I8042 dependencies

[David Miller]

From: Mark Salter <msalter@redhat.com>
Date: Sun, 15 Dec 2013 10:50:26 -0500

> On Sun, 2013-12-15 at 02:36 -0800, Dmitry Torokhov wrote:
>> How are we going to merge this? In bulk through input tree or peacemeal
>> through all arches first?
>
> They should all go together to eliminate the chance of bisect breakage.
> Either the input tree or maybe akpm tree.

This sounds good to me.

Re: [PATCH 10/10] Kconfig: cleanup SERIO_I8042 dependencies

[Dmitry Torokhov]

On Sun, Dec 15, 2013 at 08:27:25PM -0500, David Miller wrote:
> From: Mark Salter <msalter@redhat.com>
> Date: Sun, 15 Dec 2013 10:50:26 -0500
> 
> > On Sun, 2013-12-15 at 02:36 -0800, Dmitry Torokhov wrote:
> >> How are we going to merge this? In bulk through input tree or peacemeal
> >> through all arches first?
> >
> > They should all go together to eliminate the chance of bisect breakage.
> > Either the input tree or maybe akpm tree.
> 
> This sounds good to me.

OK, then I'll pick it up once I collect more acks from the arch
maintainers.

-- 
Dmitry

Re: [PATCH 10/10] Kconfig: cleanup SERIO_I8042 dependencies

[Ralf Baechle]

On Sat, Dec 14, 2013 at 11:59:36AM -0500, Mark Salter wrote:

> -	depends on !PARISC && (!ARM || FOOTBRIDGE_HOST) && \
> -		   (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN && !S390 && \
> -		   !ARC
> +	depends on ARCH_MIGHT_HAVE_PC_SERIO

Most dependencies on an architecture's kconfig symbol outside arch/
should probably be treated as a bug.

Acked-by: Ralf Baechle <ralf@linux-mips.org>

  Ralf