timers/migration: Simplify top level detection on group setup

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Having a single group on a given level is enough to know this is the
top level, because a root has to have at least two children, unless that
root is the only group and the children are actual CPUs.

Simplify the test in tmigr_setup_groups() accordingly.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250114231507.21672-5-frederic@kernel.org

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Frederic Weisbecker 2025-01-15 00:15:07 +01:00 • committed by Thomas Gleixner

parent 3ec955713d

commit dcf6230555

1 changed files with 1 additions and 3 deletions

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kernel/time/timer_migration.c

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