linux-hardening - Re: [PATCH v2] cgroup: Avoid compiler warnings with no subsystems

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Message-ID: <YSkmCVwLvfusqtmA@slm.duckdns.org>
Date:   Fri, 27 Aug 2021 07:51:05 -1000
From:   Tejun Heo <tj@...nel.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Zefan Li <lizefan.x@...edance.com>,
        Johannes Weiner <hannes@...xchg.org>, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2] cgroup: Avoid compiler warnings with no subsystems

On Fri, Aug 27, 2021 at 08:04:24AM -0700, Kees Cook wrote:
> +	if (CGROUP_SUBSYS_COUNT > 0 && ss)

Can we encapsulate this in a macro so that it's clear (or at least
consolidated) why we need these without adding a comment in each spot?

Thanks.

-- 
tejun