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In some cases, x86 code calls cpumask_weight() to check if any bit of a given cpumask is set. This can be done 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 <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Steve Wahl <[email protected]> Link: https://lore.kernel.org/r/[email protected]