[PATCH 3/4] x86: Remove __current_clr_polling() from mwait_idle()

Frederic Weisbecker
2023-11-15T15:14:20Z

mwait_idle() is only ever called through by cpuidle, either from
default_idle_call() or from cpuidle_enter(). In any case
cpuidle_idle_call() sets again TIF_NR_POLLING after calling it so there
is no point for this atomic operation upon idle exit.

Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
---
arch/x86/kernel/process.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index b6f4e8399fca..fc7a38084606 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -930,7 +930,6 @@ static __cpuidle void mwait_idle(void)
raw_local_irq_disable();
}
}
- __current_clr_polling();
}

void select_idle_routine(const struct cpuinfo_x86 *c)
--
2.42.1