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Re: [PATCH v6 06/19] xen/cpufreq: make _PSD info common
- To: Penny Zheng <Penny.Zheng@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 16 Jul 2025 17:07:48 +0200
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- Cc: ray.huang@xxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Wed, 16 Jul 2025 15:08:05 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 11.07.2025 05:50, Penny Zheng wrote:
> _PSD info, consisted of "shared_type" and "struct xen_psd_package", will not
> only be provided from px-specific "struct xen_processor_performance", but also
> in CPPC data.
>
> Two new helper functions are introduced to deal with _PSD. They will later be
> re-used for handling the same data for CPPC.
> In the meantime, the following style corrections get applied at the same time:
> - add extra space before and after bracket of if()
> - remove redundant parenthesis
> - no need to put brace for printk() at a seperate line
>
> Signed-off-by: Penny Zheng <Penny.Zheng@xxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
with one further remark:
> --- a/xen/drivers/cpufreq/cpufreq.c
> +++ b/xen/drivers/cpufreq/cpufreq.c
> @@ -226,9 +226,29 @@ int cpufreq_limit_change(unsigned int cpu)
> return __cpufreq_set_policy(data, &policy);
> }
>
> -int cpufreq_add_cpu(unsigned int cpu)
> +static int get_psd_info(unsigned int cpu, uint32_t *shared_type,
Here any below I question the need to use a fixed-width type. "unsigned int"
will do fine here, I expect, and that's what ./CODING_STYLE also mandates in
such cases. I may take the liberty and change that while committing.
Jan
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