From: Roland Dreier <rdreier@cisco.com>
To: ak@suse.de, akpm@osdl.org
Cc: linux-kernel@vger.kernel.org, discuss@x86-64.org
Subject: [PATCH] Fix x86_64 build with CONFIG_HOTPLUG_CPU=n
Date: Sun, 26 Feb 2006 16:42:42 -0800 [thread overview]
Message-ID: <adar75pskcd.fsf@cisco.com> (raw)
In arch/x86_64, kernel/setup.c calls setup_additional_cpus() if
CONFIG_SMP is defined. However, kernel/smpboot.c only defines it if
CONFIG_HOTPLUG_CPU is defined, so a build with SMP but not HOTPLUG_CPU
will fail. Fix this by testing HOTPLUG_CPU in kernel/setup.c as well.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -424,7 +424,7 @@ static __init void parse_cmdline_early (
elfcorehdr_addr = memparse(from+11, &from);
#endif
-#ifdef CONFIG_SMP
+#ifdef CONFIG_HOTPLUG_CPU
else if (!memcmp(from, "additional_cpus=", 16))
setup_additional_cpus(from+16);
#endif
reply other threads:[~2006-02-27 0:42 UTC|newest]
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