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Date:   Sun, 23 Jan 2022 21:13:00 +0200
From:   Leon Romanovsky <leon@kernel.org>
To:     Yury Norov <yury.norov@gmail.com>
Cc:     Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Rasmus Villemoes <linux@rasmusvillemoes.dk>,
        Andrew Morton <akpm@linux-foundation.org>,
        =?utf-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= <mirq-linux@rere.qmqm.pl>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Peter Zijlstra <peterz@infradead.org>,
        David Laight <David.Laight@aculab.com>,
        Joe Perches <joe@perches.com>, Dennis Zhou <dennis@kernel.org>,
        Emil Renner Berthing <kernel@esmil.dk>,
        Nicholas Piggin <npiggin@gmail.com>,
        Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>,
        Alexey Klimov <aklimov@redhat.com>,
        linux-kernel@vger.kernel.org,
        Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>,
        Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>,
        Jason Gunthorpe <jgg@ziepe.ca>, linux-rdma@vger.kernel.org
Subject: Re: [PATCH 18/54] drivers/infiniband: replace cpumask_weight with
 cpumask_empty where appropriate
Message-ID: <Ye2ovL0UwQ2X4w7z@unreal>
References: <20220123183925.1052919-1-yury.norov@gmail.com>
 <20220123183925.1052919-19-yury.norov@gmail.com>
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On Sun, Jan 23, 2022 at 10:38:49AM -0800, Yury Norov wrote:
> drivers/infiniband/hw/hfi1/affinity.c code calls cpumask_weight() to check
> if any bit of a given cpumask is set. We can do it more efficiently with
> cpumask_empty() because cpumask_empty() stops traversing the cpumask as
> soon as it finds first set bit, while cpumask_weight() counts all bits
> unconditionally.
> 
> Signed-off-by: Yury Norov <yury.norov@gmail.com>
> ---
>  drivers/infiniband/hw/hfi1/affinity.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Except that title needs to be: "RDMA/hfi: ....", the change looks ok.

Thanks,
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>