[PATCH] clocksource: disallow drivers for ARCH_USES_GETTIMEOFFSET

[PATCH] clocksource: disallow drivers for ARCH_USES_GETTIMEOFFSET

[Arnd Bergmann]

We can now select clocksource drivers like ti-32k and CONFIG_OF
on ancient machines that still use gettimeoffset, and the combination
results in a link error.

arch/arm/kernel/built-in.o: In function `time_init':
(.init.text+0xc28): undefined reference to `clocksource_probe'

The reason for this is that the Makefile is hidden behind
CONFIG_ARCH_USES_GETTIMEOFFSET, but the Kconfig file is not, and
it has shown up just now because the ti-32k driver was added
and can be selected using COMPILE_TEST on all platforms.

This patch hides the Kconfig menu in CONFIG_ARCH_USES_GETTIMEOFFSET
as well.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: dfedaf105d60 ("clocksource: ti-32k: make it depend on GENERIC_CLOCKSOURCE")

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index c479f815b99a..db240cb56da7 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -1,4 +1,5 @@
 menu "Clock Source drivers"
+	depends on !ARCH_USES_GETTIMEOFFSET
 
 config CLKSRC_OF
 	bool

[tip:timers/urgent] clocksource: Disallow drivers for ARCH_USES_GETTIMEOFFSET

[tip-bot for Arnd Bergmann]

Commit-ID:  3da6d49e847128378c30292848125cc3e207e5f7
Gitweb:     http://git.kernel.org/tip/3da6d49e847128378c30292848125cc3e207e5f7
Author:     Arnd Bergmann <arnd@arndb.de>
AuthorDate: Mon, 16 Nov 2015 17:51:17 +0100
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Mon, 16 Nov 2015 19:07:08 +0100

clocksource: Disallow drivers for ARCH_USES_GETTIMEOFFSET

We can now select clocksource drivers like ti-32k and CONFIG_OF
on ancient machines that still use gettimeoffset, and the combination
results in a link error.

arch/arm/kernel/built-in.o: In function `time_init':
(.init.text+0xc28): undefined reference to `clocksource_probe'

The reason for this is that the Makefile is hidden behind
CONFIG_ARCH_USES_GETTIMEOFFSET, but the Kconfig file is not, and
it has shown up just now because the ti-32k driver was added
and can be selected using COMPILE_TEST on all platforms.

This patch hides the Kconfig menu in CONFIG_ARCH_USES_GETTIMEOFFSET
as well.

Fixes: dfedaf105d60 "clocksource: ti-32k: make it depend on GENERIC_CLOCKSOURCE"
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Felipe Balbi <balbi@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: http://lkml.kernel.org/r/7579471.4N90fYPQOK@wuerfel
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

---
 drivers/clocksource/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 71cfdf7..2eb5f0e 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -1,4 +1,5 @@
 menu "Clock Source drivers"
+	depends on !ARCH_USES_GETTIMEOFFSET
 
 config CLKSRC_OF
 	bool