linux-kernel - [PATCH] arch: x86: kernel: apic: Remove unnecessary ifdef

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Date:	Wed, 20 Aug 2014 10:16:01 +0200
From:	Andreas Ruprecht <rupran@...server.de>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>,
	x86@...nel.org, linux-kernel@...r.kernel.org,
	Andreas Ruprecht <rupran@...server.de>
Subject: [PATCH] arch: x86: kernel: apic: Remove unnecessary ifdef

In the file x2apic_uv_x.c, some code is compiled conditionally depending on
CONFIG_SMP. However, the file is only built, if CONFIG_X86_UV is enabled.

CONFIG_X86_UV depends on CONFIG_NUMA, which itself depends on CONFIG_SMP, so the
ifdef will always evaluate to true, if the file is compiled. Thus, it is
unnecessary and can be removed.

Signed-off-by: Andreas Ruprecht <rupran@...server.de>
---
 arch/x86/kernel/apic/x2apic_uv_x.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 004f017..8e9dcfd 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -204,7 +204,6 @@ EXPORT_SYMBOL(sn_rtc_cycles_per_second);
 
 static int uv_wakeup_secondary(int phys_apicid, unsigned long start_rip)
 {
-#ifdef CONFIG_SMP
 	unsigned long val;
 	int pnode;
 
@@ -223,7 +222,6 @@ static int uv_wakeup_secondary(int phys_apicid, unsigned long start_rip)
 	uv_write_global_mmr64(pnode, UVH_IPI_INT, val);
 
 	atomic_set(&init_deasserted, 1);
-#endif
 	return 0;
 }
 
-- 
1.9.1

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