linux-kernel - [PATCH] watchdog: orion: don't build for ARCH

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Message-Id: <20170515155040.1521131-1-arnd@arndb.de>
Date:   Mon, 15 May 2017 17:50:19 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Arnd Bergmann <arnd@...db.de>, Wim Van Sebroeck <wim@...ana.be>,
        linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] watchdog: orion: don't build for ARCH_EBSA110

The randconfig builder caught another corner case with this driver that
fails to build for EBSA110 since that has its own MMIO handlers and
lacks atomic_io_modify:

drivers/watchdog/orion_wdt.o: In function `orion_stop':
orion_wdt.c:(.text.orion_stop+0x28): undefined reference to `atomic_io_modify'
orion_wdt.c:(.text.orion_stop+0x3c): undefined reference to `atomic_io_modify'
drivers/watchdog/orion_wdt.o: In function `armada370_wdt_clock_init':
orion_wdt.c:(.text.armada370_wdt_clock_init+0x2c): undefined reference to `atomic_io_modify'
drivers/watchdog/orion_wdt.o: In function `armada375_stop':
orion_wdt.c:(.text.armada375_stop+0x28): undefined reference to `atomic_io_modify'
orion_wdt.c:(.text.armada375_stop+0x58): undefined reference to `atomic_io_modify'

The best workaround I can think of is to add another Kconfig dependency.
We could add atomic_io_modify() for ebsa110 in theory, but it seemed
wrong because that platform would never actually use it.

Fixes: da2a68b3eb47 ("watchdog: Enable COMPILE_TEST where possible")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/watchdog/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 52a70ee6014f..feead0dbfc55 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -453,7 +453,7 @@ config DAVINCI_WATCHDOG
 config ORION_WATCHDOG
 	tristate "Orion watchdog"
 	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
-	depends on ARM
+	depends on ARM && !ARCH_EBSA110
 	select WATCHDOG_CORE
 	help
 	  Say Y here if to include support for the watchdog timer
-- 
2.9.0