linux-kernel - [PATCH 7/8] char/genrtc: disallow building on Alpha

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Message-Id: <1461707052-1337718-8-git-send-email-arnd@arndb.de>
Date:	Tue, 26 Apr 2016 23:44:11 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Arnd Bergmann <arnd@...db.de>, tony.luck@...el.com,
	geert@...ux-m68k.org, jejb@...isc-linux.org, deller@....de,
	benh@...nel.crashing.org, mpe@...erman.id.au, dalias@...c.org,
	dhowells@...hat.com, yasutake.koichi@...panasonic.com,
	rth@...ddle.net, ink@...assic.park.msu.ru,
	linux-alpha@...r.kernel.org, x86@...nel.org, a.zummo@...ertech.it,
	alexandre.belloni@...e-electrons.com, linux-kernel@...r.kernel.org,
	linux-ia64@...r.kernel.org, linux-parisc@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, linux-sh@...r.kernel.org,
	rtc-linux@...glegroups.com, linux-arch@...r.kernel.org
Subject: [PATCH 7/8] char/genrtc: disallow building on Alpha

The genrtc driver serves no purpose on Alpha because it drives the
same hardware as the original rtc.c driver, and the newer rtc-generic.c
or rtc-cmos.c drivers on architectures that use the asm-generic/rtc.h
header.

The defconfig uses CONFIG_RTC=y, so this driver is not used by default.
At one point it was used to abstract a quirk for the "Marvel" platform,
but it does not do this any more after the code was moved into yet
another driver in arch/alpha/kernel/rtc.c.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/char/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 9bdb629fbaae..697510325b1d 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on ALPHA || M68K || MN10300 || PARISC || PPC
+	depends on M68K || MN10300 || PARISC || PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
-- 
2.7.0