commit bcb9b99d1fb6a1cbe592f131dc95450d2f18c91f
author Magnus Damm <magnus@valinux.co.jp> Mon Feb 05 15:43:42 2007 +0900
committer Tony Luck <tony.luck@intel.com> Mon Feb 05 11:27:21 2007 -0800
tree 7c3e9711112c0559f8d734b5fed6e82eb846c3be
parent 62d0cfcb27cf755cebdc93ca95dabc83608007cd

[IA64] kexec: Fix CONFIG_SMP=n compilation

Kexec support for 2.6.20 on ia64 does not build properly using a config
made up by CONFIG_SMP=n and CONFIG_HOTPLUG_CPU=n:

Signed-off-by: Magnus Damm <magnus@valinux.co.jp>
Acked-by: Simon Horman <horms@verge.net.au>
Acked-by: Jay Lan <jlan@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/kernel/crash.c

diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index bc2f64d..2018e62 100644
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -79,6 +79,7 @@
 	final_note(buf);
 }
 
+#ifdef CONFIG_SMP
 static int
 kdump_wait_cpu_freeze(void)
 {
@@ -91,6 +92,7 @@
 	}
 	return 1;
 }
+#endif
 
 void
 machine_crash_shutdown(struct pt_regs *pt)
@@ -132,11 +134,12 @@
 	atomic_inc(&kdump_cpu_freezed);
 	kdump_status[cpuid] = 1;
 	mb();
-	if (cpuid == 0) {
-		for (;;)
-			cpu_relax();
-	} else
+#ifdef CONFIG_HOTPLUG_CPU
+	if (cpuid != 0)
 		ia64_jump_to_sal(&sal_boot_rendez_state[cpuid]);
+#endif
+	for (;;)
+		cpu_relax();
 }
 
 static int

arch/ia64/kernel/machine_kexec.c

diff --git a/arch/ia64/kernel/machine_kexec.c b/arch/ia64/kernel/machine_kexec.c
index e2ccc9f..7141795 100644
--- a/arch/ia64/kernel/machine_kexec.c
+++ b/arch/ia64/kernel/machine_kexec.c
@@ -70,12 +70,14 @@
 
 void machine_shutdown(void)
 {
+#ifdef CONFIG_HOTPLUG_CPU
 	int cpu;
 
 	for_each_online_cpu(cpu) {
 		if (cpu != smp_processor_id())
 			cpu_down(cpu);
 	}
+#endif
 	kexec_disable_iosapic();
 }