Re: [PATCH][2.6.10-rc2-mm4] perfctr sysfs update 1/4: core

[Greg KH <greg@kroah.com>]

On Fri, Dec 03, 2004 at 10:52:15AM +0100, Mikael Pettersson wrote:
> Greg KH writes:
>  > On Thu, Dec 02, 2004 at 11:10:24AM +0100, Mikael Pettersson wrote:
>  > > +static int __init perfctr_class_init(void)
>  > > +{
>  > > +	int ret;
>  > > +
>  > > +	ret = class_register(&perfctr_class);
>  > > +	if (ret)
>  > > +		return ret;
>  > > +	ret |= class_create_file(&perfctr_class, &class_attr_driver_version);
>  > > +	ret |= class_create_file(&perfctr_class, &class_attr_cpu_type);
>  > > +	ret |= class_create_file(&perfctr_class, &class_attr_cpu_features);
>  > > +	ret |= class_create_file(&perfctr_class, &class_attr_cpu_khz);
>  > > +	ret |= class_create_file(&perfctr_class, &class_attr_tsc_to_cpu_mult);
>  > > +	ret |= class_create_file(&perfctr_class, &class_attr_cpus_online);
>  > > +	ret |= class_create_file(&perfctr_class, &class_attr_cpus_forbidden);
>  > > +	if (ret)
>  > > +		class_unregister(&perfctr_class);
>  > > +	return ret;
>  > 
>  > It's easier to use sysfs_create_group() instead of registering all of
>  > the individual files.
> 
> Thanks for the hint. While looking around I noticed I can simplify
> it even further by having perfctr_class.class_attrs point to an array
> of attributes at class_register() time.

Nice, I forgot about that :)

greg k-h