linux-kernel - Re: [PATCH v8 06/13] x86/resctrl: Remove the init attribute for rdt_cpu

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Date:   Tue, 22 Nov 2022 16:13:42 -0800
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     Babu Moger <babu.moger@....com>, <corbet@....net>,
        <tglx@...utronix.de>, <mingo@...hat.com>, <bp@...en8.de>
CC:     <fenghua.yu@...el.com>, <dave.hansen@...ux.intel.com>,
        <x86@...nel.org>, <hpa@...or.com>, <paulmck@...nel.org>,
        <akpm@...ux-foundation.org>, <quic_neeraju@...cinc.com>,
        <rdunlap@...radead.org>, <damien.lemoal@...nsource.wdc.com>,
        <songmuchun@...edance.com>, <peterz@...radead.org>,
        <jpoimboe@...nel.org>, <pbonzini@...hat.com>,
        <chang.seok.bae@...el.com>, <pawan.kumar.gupta@...ux.intel.com>,
        <jmattson@...gle.com>, <daniel.sneddon@...ux.intel.com>,
        <sandipan.das@....com>, <tony.luck@...el.com>,
        <james.morse@....com>, <linux-doc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <bagasdotme@...il.com>,
        <eranian@...gle.com>
Subject: Re: [PATCH v8 06/13] x86/resctrl: Remove the init attribute for
 rdt_cpu_has()

Hi Babu,

On 11/4/2022 1:00 PM, Babu Moger wrote:
> The monitor code in resctrl/monitor.c needs to call rdt_cpu_has() to
> detect the monitor related features. It has the init attribute and
> cannot be called in non-init routines. Remove the init attribute and
> make it available for all the resctrl files.

I think this is the wrong way to go. The rdt_cpu_has() callers are
init code and they should rather get the __init attribute instead of
rdt_cpu_has() losing it.

Reinette