Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq

[linux-2.6-omap-h63xx.git] / include / linux / timex.h

diff --git a/include/linux/timex.h b/include/linux/timex.h
index 7e050a2cc35be69f2685309ff9c445adbba8ae68..04a4a8cb4ed37ab150b6575b3ae9f9268967e5e7 100644 (file)
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -282,6 +282,13 @@ static inline int ntp_synced(void)
        return !(time_status & STA_UNSYNC);
 }
 
+/* Required to safely shift negative values */
+#define shift_right(x, s) ({   \
+       __typeof__(x) __x = (x);        \
+       __typeof__(s) __s = (s);        \
+       __x < 0 ? -(-__x >> __s) : __x >> __s;  \
+})
+
 
 #ifdef CONFIG_TIME_INTERPOLATION