linux-kernel - [PATCH 2/2] x86/smp: Remove the redundant #ifdef CONFIG

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Date:   Sun, 9 Apr 2017 18:46:46 +0800
From:   Dou Liyang <douly.fnst@...fujitsu.com>
To:     <x86@...nel.org>, <linux-kernel@...r.kernel.org>
CC:     <tglx@...utronix.de>, <mingo@...nel.org>, <hpa@...or.com>,
        <jaswinder@...radead.org>, Dou Liyang <douly.fnst@...fujitsu.com>
Subject: [PATCH 2/2] x86/smp: Remove the redundant #ifdef CONFIG_SMP directive

According to:
  ...
  config X86_LOCAL_APIC
     def_bool y
     depends on X86_64 || SMP || X86_32_NON_STANDARD ...
  ...
in arch/x86/Kconfig

If X86_LOCAL_APIC is n, the SMP must be n.

So, Remove the redundant #ifdef CONFIG_SMP directive in the case of
!X86_LOCAL_APIC.

Signed-off-by: Dou Liyang <douly.fnst@...fujitsu.com>
---
 arch/x86/include/asm/smp.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index f64aaa7..47103ec 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -188,11 +188,7 @@ static inline int logical_smp_processor_id(void)
 extern int hard_smp_processor_id(void);
 
 #else /* CONFIG_X86_LOCAL_APIC */
-
-# ifndef CONFIG_SMP
-#  define hard_smp_processor_id()	0
-# endif
-
+#define hard_smp_processor_id()	0
 #endif /* CONFIG_X86_LOCAL_APIC */
 
 #ifdef CONFIG_DEBUG_NMI_SELFTEST
-- 
2.5.5