linux-kernel - [PATCH] x86_64: fix build without HOTPLUG

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Message-ID: <Pine.LNX.4.64.0611231503520.8069@twin.jikos.cz>
Date:	Thu, 23 Nov 2006 15:06:24 +0100 (CET)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Andrew Morton <akpm@...l.org>
cc:	linux-kernel@...r.kernel.org,
	Reuben Farrelly <reuben-linuxkernel@...b.net>
Subject: [PATCH] x86_64: fix build without HOTPLUG_CPU (was Re: 2.6.19-rc6-mm1)

On Thu, 23 Nov 2006, Reuben Farrelly wrote:

> > http://userweb.kernel.org/~akpm/2.6.19-rc6-mm1/
> arch/x86_64/kernel/vsyscall.c: In function 'vsyscall_init':
> arch/x86_64/kernel/vsyscall.c:310: error: 'cpu_vsyscall_notifier' undeclared
> (first use in this function)
> arch/x86_64/kernel/vsyscall.c:310: error: (Each undeclared identifier is
> reported only once
> arch/x86_64/kernel/vsyscall.c:310: error: for each function it appears in.)
> make[1]: *** [arch/x86_64/kernel/vsyscall.o] Error 1
> make: *** [arch/x86_64/kernel] Error 2

[PATCH] x86_64: fix build without HOTPLUG_CPU

cpu_vsyscall_notifier() is defined only when CONFIG_HOTPLUG_CPU is 
defined.

Signed-off-by: Jiri Kosina <jkosina@...e.cz>

--- 

 arch/x86_64/kernel/vsyscall.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86_64/kernel/vsyscall.c b/arch/x86_64/kernel/vsyscall.c
index 3416462..e93ffcf 100644
--- a/arch/x86_64/kernel/vsyscall.c
+++ b/arch/x86_64/kernel/vsyscall.c
@@ -307,7 +307,9 @@ #ifdef CONFIG_SYSCTL
 	register_sysctl_table(kernel_root_table2, 0);
 #endif
 	on_each_cpu(cpu_vsyscall_init, NULL, 0, 1);
+#ifdef CONFIG_HOTPLUG_CPU
 	hotcpu_notifier(cpu_vsyscall_notifier, 0);
+#endif
 	return 0;
 }
 

-- 
Jiri Kosina
SUSE Labs

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