lkml.org 
[lkml]   [2022]   [Mar]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] cpufreq: powernow-k8: Re-order the init checks
Date
The powernow-k8 driver will do checks at startup that the current
active driver is acpi-cpufreq and show a warning when they're not
expected.

Because of this the following warning comes up on systems that
support amd-pstate and compiled in both drivers:
`WTF driver: amd-pstate`

The systems that support powernow-k8 will not support amd-pstate,
so re-order the checks to validate the CPU model number first to
avoid this warning being displayed on modern SOCs.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
drivers/cpufreq/powernow-k8.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 12ab4014af71..d289036beff2 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -1172,14 +1172,14 @@ static int powernowk8_init(void)
unsigned int i, supported_cpus = 0;
int ret;

+ if (!x86_match_cpu(powernow_k8_ids))
+ return -ENODEV;
+
if (boot_cpu_has(X86_FEATURE_HW_PSTATE)) {
__request_acpi_cpufreq();
return -ENODEV;
}

- if (!x86_match_cpu(powernow_k8_ids))
- return -ENODEV;
-
cpus_read_lock();
for_each_online_cpu(i) {
smp_call_function_single(i, check_supported_cpu, &ret, 1);
--
2.34.1
\
 
 \ /
  Last update: 2022-03-16 22:57    [W:0.040 / U:3.224 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site