Re: [PATCH 19/49] RDMA/hfi: replace cpumask_weight with cpumask_empty where appropriate

[Jason Gunthorpe]

On Thu, Feb 10, 2022 at 02:49:03PM -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@xxxxxxxxx>
> Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxx>
> ---
>  drivers/infiniband/hw/hfi1/affinity.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Applied to the rdma tree

Thanks,
Jason