| From | Greg Kroah-Hartman <> | Subject | [PATCH 29/64] Driver Core: x86: add nodename for cpuid and msr drivers. | Date | Mon, 15 Jun 2009 22:46:18 -0700 |
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From: Kay Sievers <kay.sievers@vrfy.org>
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> --- arch/x86/kernel/cpuid.c | 6 ++++++ arch/x86/kernel/msr.c | 6 ++++++ 2 files changed, 12 insertions(+), 0 deletions(-)
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 @@ static struct notifier_block __refdata cpuid_class_cpu_notifier = .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 @@ static int __init cpuid_init(void) 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) diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c index 3cf3413..98fd6cd 100644 --- a/arch/x86/kernel/msr.c +++ b/arch/x86/kernel/msr.c @@ -196,6 +196,11 @@ static struct notifier_block __refdata msr_class_cpu_notifier = { .notifier_call = msr_class_cpu_callback, }; +static char *msr_nodename(struct device *dev) +{ + return kasprintf(GFP_KERNEL, "cpu/%u/msr", MINOR(dev->devt)); +} + static int __init msr_init(void) { int i, err = 0; @@ -212,6 +217,7 @@ static int __init msr_init(void) err = PTR_ERR(msr_class); goto out_chrdev; } + msr_class->nodename = msr_nodename; for_each_online_cpu(i) { err = msr_device_create(i); if (err != 0) -- 1.6.3.2
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