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