x86: Don't print number of MCE banks for every CPU

The MCE initialization code explicitly says it doesn't handle
asymmetric configurations where different CPUs support different
numbers of MCE banks, and it prints a big warning in that case.

Therefore, printing the "mce: CPU supports <x> MCE banks"
message into the kernel log for every CPU is pure redundancy
that clutters the log significantly for systems with lots of
CPUs.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
LKML-Reference: <adaeip473qt.fsf@cisco.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index b1598a9436d09dd8f60a4fb14c75eda0f83043c8..721a77ca811536eb2129e02449701948fe9aa9c3 100644 (file)
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -1214,7 +1214,8 @@ static int __cpuinit mce_cap_init(void)
        rdmsrl(MSR_IA32_MCG_CAP, cap);
 
        b = cap & MCG_BANKCNT_MASK;
-       printk(KERN_INFO "mce: CPU supports %d MCE banks\n", b);
+       if (!banks)
+               printk(KERN_INFO "mce: CPU supports %d MCE banks\n", b);
 
        if (b > MAX_NR_BANKS) {
                printk(KERN_WARNING