VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Yamin Friedman <yaminf@mellanox.com> 2019-07-23 10:22:47 +0300 committer: David S. Miller <davem@davemloft.net> 2019-07-25 11:34:39 -0700 commit: f06d0ca45827a5790d7508de4759aed976933d4d parent: c8ec4632c6ac9cda0e8c3d51aa41eeab66585bd5
Commit Summary:
linux/dim: Fix overflow in dim calculation
Diffstat:
1 file changed, 2 insertions, 2 deletions
diff --git a/lib/dim/dim.c b/lib/dim/dim.c
index 439d641ec796..38045d6d0538 100644
--- a/lib/dim/dim.c
+++ b/lib/dim/dim.c
@@ -74,8 +74,8 @@ void dim_calc_stats(struct dim_sample *start, struct dim_sample *end,
 					delta_us);
 	curr_stats->cpms = DIV_ROUND_UP(ncomps * USEC_PER_MSEC, delta_us);
 	if (curr_stats->epms != 0)
-		curr_stats->cpe_ratio =
-				(curr_stats->cpms * 100) / curr_stats->epms;
+		curr_stats->cpe_ratio = DIV_ROUND_DOWN_ULL(
+			curr_stats->cpms * 100, curr_stats->epms);
 	else
 		curr_stats->cpe_ratio = 0;