[PATCH] printk: nbcon: Use raw_cpu_ptr() instead of open coding

From: John Ogness
Date: Tue Aug 27 2024 - 10:06:19 EST


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 <john.ogness@xxxxxxxxxxxxx>
---
kernel/printk/nbcon.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/printk/nbcon.c b/kernel/printk/nbcon.c
index 92ac5c590927..cf62f675c673 100644
--- a/kernel/printk/nbcon.c
+++ b/kernel/printk/nbcon.c
@@ -998,8 +998,7 @@ static __ref unsigned int *nbcon_get_cpu_emergency_nesting(void)
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);
}

/**
--
2.30.2