On Mon, 05 Nov 2007 19:07:50 +0100,
Kay Sievers <[email protected]> wrote:
> On Mon, 2007-11-05 at 18:43 +0100, Cornelia Huck wrote:
> > On Mon, 05 Nov 2007 18:25:40 +0100,
> > Kay Sievers <[email protected]> wrote:
> >
> > > > > That should usually be done by default attributes assigned to the ktype.
> > > > > Do you have a good use case, where people need to create such attributes
> > > > > individually instead?
> > > >
> > > > The s390 code that was converted to use kobj_attributes :)
> > > >
> > > > These look very useful, I'll go add them to the series unless Kay really
> > > > objects.
> > >
> > > I just want to hear a good reason to create attributes individually. :)
> > > Especially in conjunction with kobject_register(), these attributes are
> > > not available at uevent time, which is really really bad.
> > >
> > > Default attributes just work fine, and have the proper error handling
> > > built-in. Offering special functions for it, may just encourage people
> > > to continue this "broken" way of creating attributes.
> >
> > But where should I specify those default attributes?
> > kset_create_and_register() sets the ktype to kset_ktype...
>
> Do you need to create attributes at a kset itself, not the kobjects that
> belong to the kset?
Yes, see arch/s390/kernel/ipl.c (and I guess anything that uses
subsys_create_file() before).
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