From: Len Brown <lenb@kernel.org>
To: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
Richard Cochran <rcochran@linutronix.de>,
Len Brown <len.brown@intel.com>
Subject: [PATCH 04/13] intel_idle: Remove redundant initialization calls.
Date: Wed, 6 Apr 2016 17:00:50 -0400 [thread overview]
Message-ID: <9a82e7196c346cb0428f37d652048ac577322c39.1459975717.git.len.brown@intel.com> (raw)
In-Reply-To: <1459976459-2532-1-git-send-email-lenb@kernel.org>
In-Reply-To: <6513da0f2332d2333848af18e374b99f77c124aa.1459975717.git.len.brown@intel.com>
From: Richard Cochran <rcochran@linutronix.de>
The function, intel_idle_cpuidle_driver_init, makes calls on each CPU
to auto_demotion_disable() and c1e_promotion_disable(). These calls
are redundant, as intel_idle_cpu_init() does the same calls just a bit
later on. They are also premature, as the driver registration may yet
fail.
This patch removes the redundant code.
Signed-off-by: Richard Cochran <rcochran@linutronix.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/idle/intel_idle.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index d2e7baf..c50859d 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -1300,16 +1300,10 @@ static void __init intel_idle_cpuidle_driver_init(void)
drv->state_count += 1;
}
- if (icpu->auto_demotion_disable_flags)
- on_each_cpu(auto_demotion_disable, NULL, 1);
-
if (icpu->byt_auto_demotion_disable_flag) {
wrmsrl(MSR_CC6_DEMOTION_POLICY_CONFIG, 0);
wrmsrl(MSR_MC6_DEMOTION_POLICY_CONFIG, 0);
}
-
- if (icpu->disable_promotion_to_c1e) /* each-cpu is redundant */
- on_each_cpu(c1e_promotion_disable, NULL, 1);
}
--
2.8.0.rc4.16.g56331f8
next prev parent reply other threads:[~2016-04-06 21:01 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-06 21:00 [PATCH 0/13] intel_idle patches ready for upstream Len Brown
2016-04-06 21:00 ` [PATCH 01/13] intel_idle: add BXT support Len Brown
2016-04-06 21:00 ` [PATCH 02/13] intel_idle: remove useless return from void function Len Brown
2016-04-06 21:00 ` [PATCH 03/13] intel_idle: Fix a helper function's return value Len Brown
2016-04-06 21:00 ` Len Brown [this message]
2016-04-06 21:00 ` [PATCH 05/13] intel_idle: Fix deallocation order on the driver exit path Len Brown
2016-04-06 21:00 ` [PATCH 06/13] intel_idle: Fix dangling registration on error path Len Brown
2016-04-06 21:00 ` [PATCH 07/13] intel_idle: Avoid a double free of the per-CPU data Len Brown
2016-04-06 21:00 ` [PATCH 08/13] intel_idle: Setup the timer broadcast only on successful driver load Len Brown
2016-04-06 21:00 ` [PATCH 09/13] intel_idle: Don't overreact to a cpuidle registration failure Len Brown
2016-04-06 21:00 ` [PATCH 10/13] intel_idle: Propagate hot plug errors Len Brown
2016-04-06 21:00 ` [PATCH 11/13] intel_idle: Clean up all registered devices on exit Len Brown
2016-04-06 21:00 ` [PATCH 12/13] intel_idle: Add SKX support Len Brown
2016-04-06 21:00 ` [PATCH 13/13] intel_idle: Add KBL support Len Brown
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