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Re: [PATCH v3 10/15] xen/cpufreq: only set gov NULL when cpufreq_driver.setpolicy is NULL
- To: Penny Zheng <Penny.Zheng@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 24 Mar 2025 17:32:10 +0100
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- Cc: ray.huang@xxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 24 Mar 2025 16:32:21 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 06.03.2025 09:39, Penny Zheng wrote:
> --- a/xen/drivers/cpufreq/cpufreq.c
> +++ b/xen/drivers/cpufreq/cpufreq.c
> @@ -353,7 +353,13 @@ int cpufreq_add_cpu(unsigned int cpu)
> if (hw_all || (cpumask_weight(cpufreq_dom->map) ==
> pmpt->domain_info.num_processors)) {
> memcpy(&new_policy, policy, sizeof(struct cpufreq_policy));
> - policy->governor = NULL;
> +
> + /*
> + * Only when cpufreq_driver.setpolicy == NULL, we need to deliberately
> + * set old gov as NULL to trigger the according gov starting.
> + */
> + if ( cpufreq_driver.setpolicy == NULL )
> + policy->governor = NULL;
>
> cpufreq_cmdline_common_para(&new_policy);
Indentation looks off-by-1 here.
Also (I may have asked this before, but couldn't find an indication in this
submission, including in the cover letter): Is this independent of all earlier
patches in the series, and could hence go in right away?
Jan
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