From: John Ogness Date: Tue, 27 Aug 2024 16:25:31 +0206 Subject: [PATCH 37/54] printk: nbcon: Use raw_cpu_ptr() instead of open coding Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.11/older/patches-6.11-rt7.tar.xz There is no need to open code a non-migration-checking this_cpu_ptr(). That is exactly what raw_cpu_ptr() is. Signed-off-by: John Ogness Reviewed-by: Petr Mladek Link: https://lore.kernel.org/r/87plpum4jw.fsf@jogness.linutronix.de Signed-off-by: Petr Mladek Signed-off-by: Sebastian Andrzej Siewior --- kernel/printk/nbcon.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/kernel/printk/nbcon.c +++ b/kernel/printk/nbcon.c @@ -998,8 +998,7 @@ static __ref unsigned int *nbcon_get_cpu if (!printk_percpu_data_ready()) return &early_nbcon_pcpu_emergency_nesting; - /* Open code this_cpu_ptr() without checking migration. */ - return per_cpu_ptr(&nbcon_pcpu_emergency_nesting, raw_smp_processor_id()); + return raw_cpu_ptr(&nbcon_pcpu_emergency_nesting); } /**