From: Giuliano Pochini <pochini@shiny.it>
Date: Tue, 27 Mar 2007 05:40:28 +0000 (-0800)
Subject: [POWERPC] Fix breakage caused by 72486f1f8f0a2bc828b9d30cf4690cf2dd6807fc
X-Git-Tag: v2.6.22-rc1~1109^2~104
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5e41763ae9b4b6335fab88da85600f16d7a5a7b5;p=linux-2.6

[POWERPC] Fix breakage caused by 72486f1f8f0a2bc828b9d30cf4690cf2dd6807fc

72486f1f8f0a2bc828b9d30cf4690cf2dd6807fc inverted the sense for enabling
hotplug CPU controls without reference to any other architecture other than
i386, ia64 and PowerPC.  This left everyone else without hotplug CPU control.

Fix powerpc for this brain damage.

(akpm: patch adapted from rmk's ARM fix.  Changelog stolen from rmk)

Signed-off-by: Giuliano Pochini <pochini@shiny.it>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index f688548f74..35f8f443c1 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -196,18 +196,22 @@ EXPORT_SYMBOL(nvram_sync);
 
 #endif /* CONFIG_NVRAM */
 
-static struct cpu cpu_devices[NR_CPUS];
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
 int __init ppc_init(void)
 {
-	int i;
+	int cpu;
 
 	/* clear the progress line */
-	if ( ppc_md.progress ) ppc_md.progress("             ", 0xffff);
+	if (ppc_md.progress)
+		ppc_md.progress("             ", 0xffff);
 
 	/* register CPU devices */
-	for_each_possible_cpu(i)
-		register_cpu(&cpu_devices[i], i);
+	for_each_possible_cpu(cpu) {
+		struct cpu *c = &per_cpu(cpu_devices, cpu);
+		c->hotpluggable = 1;
+		register_cpu(c, cpu);
+	}
 
 	/* call platform init */
 	if (ppc_md.init != NULL) {