Thread (15 messages) 15 messages, 4 authors, 2020-02-26

Re: [PATCH v4 6/7] arm64: use activity monitors for frequency invariance

From: Ionela Voinescu <hidden>
Date: 2020-02-26 10:22:16
Also in: linux-doc, linux-pm, lkml

Hi Pavan,

On Wednesday 26 Feb 2020 at 15:21:34 (+0530), Pavan Kondeti wrote:
On Mon, Feb 24, 2020 at 02:11:41PM +0000, Ionela Voinescu wrote:

[...]
quoted
+static int __init init_amu_fie(void)
+{
+	cpumask_var_t valid_cpus;
+	bool have_policy = false;
+	int cpu;
+
+	if (!zalloc_cpumask_var(&valid_cpus, GFP_KERNEL) ||
+	    !zalloc_cpumask_var(&amu_fie_cpus, GFP_KERNEL))
+		return -ENOMEM;
The patch looks good to me. one minor comment here. In an unlikely
scenario, valid_cpus which is a temporary mask can get allocated
but amu_fie_cpus may not. In that case, we have to free valid_cpus
here. I have seen some static code inspection tools catching these
type of errors. If you happen to rebase this series, fix this.
Thank you for the review!

I am just about to push v5 and I'll add this fix as well.

Thank you,
Ionela.
Thanks,
Pavan

-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
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