[CPUFREQ] powernow-k8: Only print error message once, not per core.

This is the typical message you get if you plug in a CPU
which is newer than your BIOS. It's annoying seeing this
message for each core.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>

diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index acc06b03194ee1856ef61e995dd18c660d879dd4..c44853fc827a81c98b49870a95287f7903ea2288 100644 (file)
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -794,7 +794,7 @@ static int find_psb_table(struct powernow_k8_data *data)
         * BIOS and Kernel Developer's Guide, which is available on
         * www.amd.com
         */
-       printk(KERN_ERR PFX "BIOS error - no PSB or ACPI _PSS objects\n");
+       printk(KERN_ERR FW_BUG PFX "No PSB or ACPI _PSS objects\n");
        return -ENODEV;
 }
 
@@ -1218,6 +1218,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
        struct powernow_k8_data *data;
        cpumask_t oldmask;
        int rc;
+       static int print_once;
 
        if (!cpu_online(pol->cpu))
                return -ENODEV;
@@ -1240,11 +1241,19 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
                 * an UP version, and is deprecated by AMD.
                 */
                if (num_online_cpus() != 1) {
-                       printk(KERN_ERR FW_BUG PFX "Your BIOS does not provide"
-                              " ACPI _PSS objects in a way that Linux "
-                              "understands. Please report this to the Linux "
-                              "ACPI maintainers and complain to your BIOS "
-                              "vendor.\n");
+                       /*
+                        * Replace this one with print_once as soon as such a
+                        * thing gets introduced
+                        */
+                       if (!print_once) {
+                               WARN_ONCE(1, KERN_ERR FW_BUG PFX "Your BIOS "
+                                       "does not provide ACPI _PSS objects "
+                                       "in a way that Linux understands. "
+                                       "Please report this to the Linux ACPI"
+                                       " maintainers and complain to your "
+                                       "BIOS vendor.\n");
+                               print_once++;
+                       }
                        kfree(data);
                        return -ENODEV;
                }