mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-05 15:49:42 -04:00
Code Issues Packages Projects Releases Wiki Activity

cpufreq: amd-pstate: Remove unnecessary driver_lock in set_boost

Browse Source 
set_boost is a per-policy function call, hence a driver wide lock is
unnecessary. Also this mutex_acquire can collide with the mutex_acquire
from the mode-switch path in status_store(), which can lead to a
deadlock. So, remove it.

Signed-off-by: Dhananjay Ugwekar <dhananjay.ugwekar@amd.com>
Acked-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Dhananjay Ugwekar
2025-01-30 08:52:52 +00:00
committed by Viresh Kumar
parent 4742da9774
commit db1cafc77a
1 changed files with 0 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/cpufreq/amd-pstate.c
View File

@@ -744,7 +744,6 @@ static int amd_pstate_set_boost(struct cpufreq_policy *policy, int state)
pr_err("Boost mode is not supported by this processor or SBIOS\n");
return -EOPNOTSUPP;
}
guard(mutex)(&amd_pstate_driver_lock);
ret = amd_pstate_cpu_boost_update(policy, state);
policy->boost_enabled = !ret ? state : false;