netdev - Re: [PATCH 5/5] cpumask: fix comment of cpumask

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Message-ID: <ZAYmqVmeYdDPVpLZ@vernon-pc>
Date:   Tue, 7 Mar 2023 01:45:13 +0800
From:   Vernon Yang <vernon2gm@...il.com>
To:     Yury Norov <yury.norov@...il.com>
Cc:     torvalds@...ux-foundation.org, tytso@....edu, Jason@...c4.com,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, jejb@...ux.ibm.com, martin.petersen@...cle.com,
        andriy.shevchenko@...ux.intel.com, linux@...musvillemoes.dk,
        james.smart@...adcom.com, dick.kennedy@...adcom.com,
        linux-kernel@...r.kernel.org, wireguard@...ts.zx2c4.com,
        netdev@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: [PATCH 5/5] cpumask: fix comment of cpumask_xxx

On Mon, Mar 06, 2023 at 08:39:03AM -0800, Yury Norov wrote:
> On Tue, Mar 07, 2023 at 12:06:51AM +0800, Vernon Yang wrote:
> > After commit 596ff4a09b89 ("cpumask: re-introduce constant-sized cpumask
> > optimizations"), the cpumask size is divided into three different case,
> > so fix comment of cpumask_xxx correctly.
> >
> > Signed-off-by: Vernon Yang <vernon2gm@...il.com>
> > ---
> >  include/linux/cpumask.h | 46 ++++++++++++++++++++---------------------
> >  1 file changed, 23 insertions(+), 23 deletions(-)
> >
> > diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
> > index 8fbe76607965..248bdb1c50dc 100644
> > --- a/include/linux/cpumask.h
> > +++ b/include/linux/cpumask.h
> > @@ -155,7 +155,7 @@ static __always_inline unsigned int cpumask_check(unsigned int cpu)
> >   * cpumask_first - get the first cpu in a cpumask
> >   * @srcp: the cpumask pointer
> >   *
> > - * Returns >= nr_cpu_ids if no cpus set.
> > + * Returns >= small_cpumask_bits if no cpus set.
>
> There's no such thing like small_cpumask_bits. Here and everywhere,
> nr_cpu_ids must be used.
>
> Actually, before 596ff4a09b89 nr_cpumask_bits was deprecated, and it
> must be like that for all users even now.
>
> nr_cpumask_bits must be considered as internal cpumask parameter and
> never referenced outside of cpumask code.

OK, I remove this path for next version.

>
> Thansk,
> Yury