From: David S. Miller <davem@sunset.davemloft.net>
Date: Sun, 16 Sep 2007 21:45:06 +0000 (-0700)
Subject: [SPARC64]: Warn user if cpu is ignored.
X-Git-Tag: v2.6.23-rc7~32^2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a177c4f17c691c2c9a08a54709d37c6db481a0b;p=linux-2.6

[SPARC64]: Warn user if cpu is ignored.

When NR_CPUS is smaller than the cpu probed, let the user
know that the cpu won't be used.

Suggested by Al Viro.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/kernel/mdesc.c b/arch/sparc64/kernel/mdesc.c
index 9f22e4ff60..856659bb13 100644
--- a/arch/sparc64/kernel/mdesc.c
+++ b/arch/sparc64/kernel/mdesc.c
@@ -777,8 +777,12 @@ void __devinit mdesc_fill_in_cpu_data(cpumask_t mask)
 		cpuid = *id;
 
 #ifdef CONFIG_SMP
-		if (cpuid >= NR_CPUS)
+		if (cpuid >= NR_CPUS) {
+			printk(KERN_WARNING "Ignoring CPU %d which is "
+			       ">= NR_CPUS (%d)\n",
+			       cpuid, NR_CPUS);
 			continue;
+		}
 		if (!cpu_isset(cpuid, mask))
 			continue;
 #else
diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c
index d1a78c976c..0614dff63d 100644
--- a/arch/sparc64/kernel/prom.c
+++ b/arch/sparc64/kernel/prom.c
@@ -1583,8 +1583,12 @@ static void __init of_fill_in_cpu_data(void)
 		ncpus_probed++;
 
 #ifdef CONFIG_SMP
-		if (cpuid >= NR_CPUS)
+		if (cpuid >= NR_CPUS) {
+			printk(KERN_WARNING "Ignoring CPU %d which is "
+			       ">= NR_CPUS (%d)\n",
+			       cpuid, NR_CPUS);
 			continue;
+		}
 #else
 		/* On uniprocessor we only want the values for the
 		 * real physical cpu the kernel booted onto, however