Driver Core: x86: add nodename for cpuid and msr drivers.
This adds support to the x86 cpuid and msr drivers to report the proper
device name to userspace for their devices.
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index 2ac1f0c..b07af88 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -182,6 +182,11 @@
.notifier_call = cpuid_class_cpu_callback,
};
+static char *cpuid_nodename(struct device *dev)
+{
+ return kasprintf(GFP_KERNEL, "cpu/%u/cpuid", MINOR(dev->devt));
+}
+
static int __init cpuid_init(void)
{
int i, err = 0;
@@ -198,6 +203,7 @@
err = PTR_ERR(cpuid_class);
goto out_chrdev;
}
+ cpuid_class->nodename = cpuid_nodename;
for_each_online_cpu(i) {
err = cpuid_device_create(i);
if (err != 0)
