Re: The use of KOBJ_NAME_LEN

From: Greg KH
Date: Tue Dec 04 2007 - 02:44:45 EST


On Tue, Dec 04, 2007 at 01:50:53AM -0500, Robert P. J. Day wrote:
> On Tue, 4 Dec 2007, Dave Young wrote:
>
> > Hi,
> > Does the KOBJ_NAME_LEN really means the limit of kobject name length? seems not . And if it's true, is the KOBJ_NAME_LEN of 20 enough to use?
> >
> > In the kobject_set_name, the limit is 1024. Looks like either the comment or the code should be updated.
> >
> > /**
> > * kobject_set_name - Set the name of an object
> > * @kobj: object.
> > * @fmt: format string used to build the name
> > *
> > * If strlen(name) >= KOBJ_NAME_LEN, then use a dynamically allocated
> > * string that @kobj->k_name points to. Otherwise, use the static
> > * @kobj->name array.
> > */
>
> the comment seems fairly clear -- if the name is sufficiently short,
> it's stored in the static array. if not, then it's stored in
> dynamically allocated space.

Unfortunately, it's totally wrong, the code was updated by the comment
wasn't, sorry. See my patch to fix this.

thanks,

greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/