linux-kernel - [PATCH v2] drivers/watchdog/Kconfig: Update CONFIG_WATCHDOG

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Date:   Mon, 29 May 2017 10:26:28 -0300
From:   Murilo Opsfelder Araujo <mopsfelder@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-watchdog@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>,
        Wim Van Sebroeck <wim@...ana.be>,
        linuxppc-dev@...ts.ozlabs.org,
        Michael Ellerman <mpe@...erman.id.au>,
        Murilo Opsfelder Araujo <mopsfelder@...il.com>
Subject: [PATCH v2] drivers/watchdog/Kconfig: Update CONFIG_WATCHDOG_RTAS dependencies

drivers/watchdog/wdrtas.c uses symbols defined in arch/powerpc/kernel/rtas.c,
which are exported iff CONFIG_PPC_RTAS is selected. Building wdrtas.c without
setting CONFIG_PPC_RTAS throws the following errors:

    ERROR: ".rtas_token" [drivers/watchdog/wdrtas.ko] undefined!
    ERROR: "rtas_data_buf" [drivers/watchdog/wdrtas.ko] undefined!
    ERROR: "rtas_data_buf_lock" [drivers/watchdog/wdrtas.ko] undefined!
    ERROR: ".rtas_get_sensor" [drivers/watchdog/wdrtas.ko] undefined!
    ERROR: ".rtas_call" [drivers/watchdog/wdrtas.ko] undefined!

This was identified during a randconfig build where CONFIG_WATCHDOG_RTAS=m and
CONFIG_PPC_RTAS was not set. Logs are here:

    http://kisskb.ellerman.id.au/kisskb/buildresult/12982152/

This patch fixes the issue by updating CONFIG_WATCHDOG_RTAS to depend on just
CONFIG_PPC_RTAS, removing COMPILE_TEST entirely.

Signed-off-by: Murilo Opsfelder Araujo <mopsfelder@...il.com>
---
 drivers/watchdog/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 8b9049d..e6e31a1 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1688,7 +1688,7 @@ config MEN_A21_WDT
 
 config WATCHDOG_RTAS
 	tristate "RTAS watchdog"
-	depends on PPC_RTAS || (PPC64 && COMPILE_TEST)
+	depends on PPC_RTAS
 	help
 	  This driver adds watchdog support for the RTAS watchdog.
 
-- 
2.9.4