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| author |   Yury Norov <yury.norov@gmail.com> | 2022-02-10 14:49:00 -0800 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2022-04-10 22:35:38 +0200 |
| commit | 3a5ff1f6dd50f5e1c2aa87491910dd6d275af24b (patch) | |
| tree | f539026826c48f1de405111385b1aa559d57a750 /scripts/gdb/linux/utils.py | |
| parent | x86/pkeys: Remove __arch_set_user_pkey_access() declaration (diff) | |
| download | linux-dev-3a5ff1f6dd50f5e1c2aa87491910dd6d275af24b.tar.xz linux-dev-3a5ff1f6dd50f5e1c2aa87491910dd6d275af24b.zip | |
x86: Replace cpumask_weight() with cpumask_empty() where appropriate
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 <yury.norov@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Link: https://lore.kernel.org/r/20220210224933.379149-17-yury.norov@gmail.com
Diffstat (limited to 'scripts/gdb/linux/utils.py')
0 files changed, 0 insertions, 0 deletions