From: Mario Limonciello <mario.limonciello@xxxxxxx>
perf_ratio is a u64 and SCHED_CAPACITY_SCALE is a large number.
Shifting by one will never have a zero value.
Drop the check.
Suggested-by: Gautham R. Shenoy <gautham.shenoy@xxxxxxx>
Reviewed-by: Gautham R. Shenoy <gautham.sheoy@xxxxxxx>
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
---
v2->v3:
* Correct typo in commit message
* Pick up tag
---
arch/x86/kernel/acpi/cppc.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/x86/kernel/acpi/cppc.c b/arch/x86/kernel/acpi/cppc.c
index 660cfeb6384ba..e65c77afab318 100644
--- a/arch/x86/kernel/acpi/cppc.c
+++ b/arch/x86/kernel/acpi/cppc.c
@@ -91,13 +91,8 @@ static void amd_set_max_freq_ratio(void)
return;
}
- perf_ratio = div_u64(numerator * SCHED_CAPACITY_SCALE, nominal_perf);
/* midpoint between max_boost and max_P */
- perf_ratio = (perf_ratio + SCHED_CAPACITY_SCALE) >> 1;
- if (!perf_ratio) {
- pr_debug("Non-zero highest/nominal perf values led to a 0 ratio\n");
- return;
- }
+ perf_ratio = (div_u64(numerator * SCHED_CAPACITY_SCALE, nominal_perf) + SCHED_CAPACITY_SCALE) >> 1;
freq_invariance_set_perf_ratio(perf_ratio, false);
}
--
2.43.0
