cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once

BugLink: https://bugs.launchpad.net/bugs/1879759
[ Upstream commit 8c539776ac83c0857395e1ccc9c6b516521a2d32 ]

Make a note of the first time we discover the turbo mode has been
disabled by the BIOS, as otherwise we complain every time we try to
update the mode.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 45499e0b9f2f38fa72cde1f98462c067e5a6b5ee..d3d7c4ef7d045e21520b844b2e27beedab28edf4 100644 (file)
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1058,7 +1058,7 @@ static ssize_t store_no_turbo(struct kobject *a, struct kobj_attribute *b,
 
        update_turbo_state();
        if (global.turbo_disabled) {
-               pr_warn("Turbo disabled by BIOS or unavailable on processor\n");
+               pr_notice_once("Turbo disabled by BIOS or unavailable on processor\n");
                mutex_unlock(&intel_pstate_limits_lock);
                mutex_unlock(&intel_pstate_driver_lock);
                return -EPERM;