Re: [PATCH] kobject: Add support for default attribute groups to kobj_type
From: Kimberly Brown
Date: Sat Mar 23 2019 - 23:48:50 EST
On Sat, Mar 23, 2019 at 07:07:37AM +0100, Greg Kroah-Hartman wrote:
> On Fri, Mar 22, 2019 at 04:14:40PM -0400, Kimberly Brown wrote:
> > kobj_type currently uses a list of individual attributes to store
> > default attributes. Attribute groups are more flexible than a list of
> > attributes because groups provide support for attribute visibility. So,
> > add support for default attribute groups to kobj_type.
> > In future patches, the existing uses of kobj_typeâs attribute list will
> > be converted to attribute groups. When that is complete, kobj_typeâs
> > attribute list, âdefault_attrsâ, will be removed.
> > Signed-off-by: Kimberly Brown <kimbrownkd@xxxxxxxxx>
> > ---
> > include/linux/kobject.h | 3 ++-
> > lib/kobject.c | 14 ++++++++++++++
> > 2 files changed, 16 insertions(+), 1 deletion(-)
> Yes! Thanks for doing this.
> But how did you test it? Did you convert any kobj_type structures to
> the attribute group and see that all was the same? Ideally I'd like to
> take this patch with at least one subsystem that uses the change,
> otherwise this looks like unused code in the kernel.
Yes, I tested it by converting a couple of kobj_type structures,
including one that I recently added an is_visible() function to
(vmbus_chan_ktype in the hv_vmbus driver).
I'll put together a patchset with this patch and at least one
> greg k-h