linux-kernel - [tip:x86/cleanups] x86/smp: Remove the redundant #ifdef CONFIG

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Message-ID: <tip-7b6e106276fcc803e397f9b1bd4c272055c7cf5a@git.kernel.org>
Date:   Fri, 14 Apr 2017 13:46:27 -0700
From:   tip-bot for Dou Liyang <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     mingo@...nel.org, linux-kernel@...r.kernel.org, tglx@...utronix.de,
        douly.fnst@...fujitsu.com, hpa@...or.com
Subject: [tip:x86/cleanups] x86/smp: Remove the redundant #ifdef CONFIG_SMP
 directive

Commit-ID:  7b6e106276fcc803e397f9b1bd4c272055c7cf5a
Gitweb:     http://git.kernel.org/tip/7b6e106276fcc803e397f9b1bd4c272055c7cf5a
Author:     Dou Liyang <douly.fnst@...fujitsu.com>
AuthorDate: Sun, 9 Apr 2017 18:46:46 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Fri, 14 Apr 2017 22:43:00 +0200

x86/smp: Remove the redundant #ifdef CONFIG_SMP directive

The !CONFIG_X86_LOCAL_APIC section in smp.h wraps the define of
hard_smp_processor_id() into #ifndef CONFIG_SMP. But Kconfig has:

  config X86_LOCAL_APIC
    def_bool y
    depends on X86_64 || SMP || X86_32_NON_STANDARD ...

Therefore SMP can't be 'y' when X86_LOCAL_APIC == 'n'.

Remove the redundant #ifndef CONFIG_SMP.

[ tglx: Massaged changelog ]

Signed-off-by: Dou Liyang <douly.fnst@...fujitsu.com>
Cc: jaswinder@...radead.org
Link: http://lkml.kernel.org/r/1491734806-15413-2-git-send-email-douly.fnst@cn.fujitsu.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>

---
 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