From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joe Perches <joe@perches.com>
Subject: Re: [PATCH 7/9] lib/cpumask: add
 num_{possible,present,active}_cpus_{eq,gt,le}
Date: Sun, 28 Nov 2021 09:57:41 -0800
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References: <20211128035704.270739-1-yury.norov@gmail.com>
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To: Yury Norov <yury.norov@gmail.com>
Cc: linux-kernel@vger.kernel.org, "James E.J. Bottomley" <jejb@linux.ibm.com>, "Martin K. Petersen" <martin.petersen@oracle.com>, "Paul E. McKenney" <paulmck@kernel.org>, "Rafael J. Wysocki" <rafael@kernel.org>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Alexey Klimov <aklimov@redhat.com>, Amitkumar Karwar <amitkarwar@gmail.com>, Andi Kleen <ak@linux.intel.com>, Andrew Lunn <andrew@lunn.ch>, Andrew Morton <akpm@linux-foundation.org>, Andy Gross <agross@kernel.org>, Andy Lutomirski <luto@kernel.org>, Andy Shevchenko <andy@infradead.org>, Anup Patel <anup.patel@wdc.com>, Ard Biesheuvel <ardb@kernel.org>, Arnaldo Carvalho de Melo <acme@kernel.org>, Arnd Bergmann <arnd@arndb.de>, Borislav Petkov <bp@alien8.de>, Catalin Marinas <catalin.marinas@arm.com>, Christoph Hellwig <hch@lst.de>, Christoph Lameter <cl@linux.com>, Daniel Vetter <daniel@ffwll.ch>, Dave

On Sun, 2021-11-28 at 09:43 -0800, Yury Norov wrote:
> On Sun, Nov 28, 2021 at 09:07:52AM -0800, Joe Perches wrote:
> > On Sat, 2021-11-27 at 19:57 -0800, Yury Norov wrote:
> > > Add num_{possible,present,active}_cpus_{eq,gt,le} and replace num_*_cpus()
> > > with one of new functions where appropriate. This allows num_*_cpus_*()
> > > to return earlier depending on the condition.
> > []
> > > diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
> > []
> > > @@ -103,7 +103,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
> > >  	 * if platform didn't set the present map already, do it now
> > >  	 * boot cpu is set to present already by init/main.c
> > >  	 */
> > > -	if (num_present_cpus() <= 1)
> > > +	if (num_present_cpus_le(2))
> > >  		init_cpu_present(cpu_possible_mask);
> > 
> > ?  is this supposed to be 2 or 1
> 
> X <= 1 is the equivalent of X < 2.

True. The call though is _le not _lt