From mboxrd@z Thu Jan 1 00:00:00 1970 From: Akshay Adiga Subject: [PATCH -next 2/2] cpufreq: powernv: del_timer_sync when global and local pstate are equal Date: Tue, 3 May 2016 15:10:48 +0530 Message-ID: <1462268448-19954-3-git-send-email-akshay.adiga@linux.vnet.ibm.com> References: <1462268448-19954-1-git-send-email-akshay.adiga@linux.vnet.ibm.com> Return-path: In-Reply-To: <1462268448-19954-1-git-send-email-akshay.adiga@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org To: rjw@rjwysocki.net, viresh.kumar@linaro.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: Akshay Adiga List-Id: linux-pm@vger.kernel.org Deleting pending gpstates->timer for the policy when global and local pstate are equal while executing target_index(). This saves an unnecessary irq call. Signed-off-by: Akshay Adiga --- Patch is based on Rafael's linux-next drivers/cpufreq/powernv-cpufreq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c index 1f0e20c..54c4536 100644 --- a/drivers/cpufreq/powernv-cpufreq.c +++ b/drivers/cpufreq/powernv-cpufreq.c @@ -647,6 +647,8 @@ static int powernv_cpufreq_target_index(struct cpufreq_policy *policy, */ if (gpstate_id != freq_data.pstate_id) queue_gpstate_timer(gpstates); + else + del_timer_sync(&gpstates->timer); gpstates_done: freq_data.gpstate_id = gpstate_id; -- 2.5.5