cpuidle: menu: use DIV_ROUND_CLOSEST_ULL()
Now that the kernel provides DIV_ROUND_CLOSEST_ULL(), drop the internal
implementation and use the kernel one.
Signed-off-by: Javi Merino <javi.merino@arm.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index 4058079..b8a5fa1 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -190,12 +190,6 @@
static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev);
-/* This implements DIV_ROUND_CLOSEST but avoids 64 bit division */
-static u64 div_round64(u64 dividend, u32 divisor)
-{
- return div_u64(dividend + (divisor / 2), divisor);
-}
-
/*
* Try detecting repeating patterns by keeping track of the last 8
* intervals, and checking if the standard deviation of that set
@@ -317,7 +311,7 @@
* operands are 32 bits.
* Make sure to round up for half microseconds.
*/
- data->predicted_us = div_round64((uint64_t)data->next_timer_us *
+ data->predicted_us = DIV_ROUND_CLOSEST_ULL((uint64_t)data->next_timer_us *
data->correction_factor[data->bucket],
RESOLUTION * DECAY);