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author | Yury Norov <yury.norov@gmail.com> | 2022-01-23 10:38:46 -0800 |
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committer | Yury Norov <yury.norov@gmail.com> | 2022-06-03 06:52:57 -0700 |
commit | 4aec74bccf5d047347bdfef3638e3031dd75c0a0 (patch) | |
tree | 1c47143b5015168e9c99f2cc5673b9ebd19822fc /drivers | |
parent | b6dad11d9cb105681abbfc3d57aae4b21bd0c8c4 (diff) | |
download | lwn-4aec74bccf5d047347bdfef3638e3031dd75c0a0.tar.gz lwn-4aec74bccf5d047347bdfef3638e3031dd75c0a0.zip |
arch/x86: replace cpumask_weight with cpumask_empty where appropriate
In some cases, arch/x86 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>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions