linux-kernel - Re: [PATCH 12/36] sched_ext: Implement BPF extensible scheduler class

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Date:   Tue, 14 Nov 2023 09:07:03 -1000
From:   Tejun Heo <tj@...nel.org>
To:     Changwoo Min <changwoo@...lia.com>
Cc:     torvalds@...ux-foundation.org, mingo@...hat.com,
        peterz@...radead.org, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com, vschneid@...hat.com, ast@...nel.org,
        daniel@...earbox.net, andrii@...nel.org, martin.lau@...nel.org,
        joshdon@...gle.com, brho@...gle.com, pjt@...gle.com,
        derkling@...gle.com, haoluo@...gle.com, dvernet@...a.com,
        dschatzberg@...a.com, dskarlat@...cmu.edu, riel@...riel.com,
        himadrics@...ia.fr, memxor@...il.com, linux-kernel@...r.kernel.org,
        bpf@...r.kernel.org, kernel-team@...a.com,
        Andrea Righi <andrea.righi@...onical.com>,
        kernel-dev@...lia.com
Subject: Re: [PATCH 12/36] sched_ext: Implement BPF extensible scheduler class

On Mon, Nov 13, 2023 at 10:34:23PM +0900, Changwoo Min wrote:
> Currently, scx_ops_enable_state_str is defined only when
> CONFIG_SCHED_DEBUG is enabled. However, print_scx_info() uses
> scx_ops_enable_state_str regardless that CONFIG_SCHED_DEBUG is enabled
> or not. So when CONFIG_SCHED_DEBUG is not enabled, the current code
> generates the following compilation error:
> 
> kernel/sched/ext.c: In function ‘print_scx_info’:
> kernel/sched/ext.c:3720:24: error: ‘scx_ops_enable_state_str’ undeclared
> 
> So CONFIG_SCHED_DEBUG should be moved to after the definition of
> scx_ops_enable_state_str.

Will fix. Thank you.

-- 
tejun