linux-kernel - [PATCH 1/4] ARM: export read_current

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Date:	Wed, 22 Aug 2012 16:29:37 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Russell King <rmk+kernel@....linux.org.uk>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>,
	Shinya Kuribayashi <shinya.kuribayashi.px@...esas.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Will Deacon <will.deacon@....com>
Subject: [PATCH 1/4] ARM: export read_current_timer

read_current_timer is used in the get_cycles() function when
ARM_ARCH_TIMER is set, and that function can be inlined into
driver modules, so we should export the function to avoid
errors like

ERROR: "read_current_timer" [drivers/video/udlfb.ko] undefined!
ERROR: "read_current_timer" [crypto/tcrypt.ko] undefined!

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Cc: Shinya Kuribayashi <shinya.kuribayashi.px@...esas.com>
Cc: Stephen Boyd <sboyd@...eaurora.org>
Cc: Will Deacon <will.deacon@....com>
Cc: Russell King <rmk+kernel@....linux.org.uk>
---
 arch/arm/kernel/arch_timer.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/kernel/arch_timer.c b/arch/arm/kernel/arch_timer.c
index cf25880..6327d1f 100644
--- a/arch/arm/kernel/arch_timer.c
+++ b/arch/arm/kernel/arch_timer.c
@@ -14,6 +14,7 @@
 #include <linux/device.h>
 #include <linux/smp.h>
 #include <linux/cpu.h>
+#include <linux/export.h>
 #include <linux/jiffies.h>
 #include <linux/clockchips.h>
 #include <linux/interrupt.h>
@@ -232,6 +233,7 @@ int read_current_timer(unsigned long *timer_val)
 	*timer_val = arch_counter_get_cntpct();
 	return 0;
 }
+EXPORT_SYMBOL_GPL(read_current_timer);
 
 static struct clocksource clocksource_counter = {
 	.name	= "arch_sys_counter",
-- 
1.7.10

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