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x86/apic: Hide unused safe_smp_processor_id() on 32-bit UP

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When CONFIG_SMP is disabled in a 32-bit config, the prototype for
safe_smp_processor_id() is hidden, which causes a W=1 warning:

  arch/x86/kernel/apic/ipi.c:316:5: error: no previous prototype for 'safe_smp_processor_id' [-Werror=missing-prototypes]

Since there are no callers in this configuration, just hide the definition
as well.

  [ bp: Clarify it is a 32-bit config. ]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230725134837.1534228-2-arnd@kernel.org
This commit is contained in:
Arnd Bergmann 2023-07-25 15:48:33 +02:00 committed by Borislav Petkov (AMD)
parent 566ffa3ae9
commit ac1c6283c4
1 changed files with 2 additions and 0 deletions
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2
arch/x86/kernel/apic/ipi.c
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@ -301,6 +301,7 @@ void default_send_IPI_mask_logical(const struct cpumask *cpumask, int vector)
local_irq_restore(flags);
}
#ifdef CONFIG_SMP
/* must come after the send_IPI functions above for inlining */
static int convert_apicid_to_cpu(int apic_id)
{
@ -329,3 +330,4 @@ int safe_smp_processor_id(void)
return cpuid >= 0 ? cpuid : 0;
}
#endif
#endif