RDMA/hfi: Replace cpumask_weight with cpumask_empty where appropriate

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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.

Link: https://lore.kernel.org/r/20220210224933.379149-20-yury.norov@gmail.com
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Yury Norov 2022-02-10 14:49:03 -08:00 • committed by Jason Gunthorpe

parent 2f1b2820b5

commit 3c8bc3954d

1 changed files with 2 additions and 2 deletions

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drivers/infiniband/hw/hfi1/affinity.c

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