[PATCH] perf/x86/amd/power: Use div64_u64 onstead of do_div()

[Jules Irenge]

do_div() truncates a u64 divisor to 32 bit.
This can lead to non-zero being truncated to zero for division.

Fix coccinelle warning
WARNING: do_div() does a 64-by-32 division, please consider using div64_u64 instead

Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx>
---
 arch/x86/events/amd/power.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/events/amd/power.c b/arch/x86/events/amd/power.c
index 37d5b380516e..ff003c1a645b 100644
--- a/arch/x86/events/amd/power.c
+++ b/arch/x86/events/amd/power.c
@@ -64,7 +64,7 @@ static void event_update(struct perf_event *event)
 	delta *= cpu_pwr_sample_ratio * 1000;
 	tdelta = new_ptsc - prev_ptsc;
 
-	do_div(delta, tdelta);
+	div64_u64(delta, tdelta);
 	local64_add(delta, &event->count);
 }
 
-- 
2.43.2