ARM: tegra: tegra_rtc_read_ms should be static

Not exported and not used externally.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/arch/arm/mach-tegra/timer.c b/arch/arm/mach-tegra/timer.c
index 4d6759a..e2272d2 100644
--- a/arch/arm/mach-tegra/timer.c
+++ b/arch/arm/mach-tegra/timer.c
@@ -133,7 +133,7 @@
  * tegra_rtc driver could be executing to avoid race conditions
  * on the RTC shadow register
  */
-u64 tegra_rtc_read_ms(void)
+static u64 tegra_rtc_read_ms(void)
 {
 	u32 ms = readl(rtc_base + RTC_MILLISECONDS);
 	u32 s = readl(rtc_base + RTC_SHADOW_SECONDS);