On Fri, Oct 30, 2020 at 11:40:33AM +0100, Greg Kroah-Hartman wrote:

On Thu, Oct 29, 2020 at 08:32:42PM +0100, Christoph Hellwig wrote:

quoted

On Thu, Oct 29, 2020 at 08:22:36PM +0100, Greg Kroah-Hartman wrote:

quoted

After this, you want me to get rid of kobj_map, right?  Or you don't
care as block doesn't use it anymore?  :)

I have a patch to kill it, but it causes odd regressions with the
tpm driver according to the kernel test.  As I have grand plans that
build on the block ѕide of this series for 5.11, I plan to defer the
chardev side and address it for 5.12.

Ok, sounds good.

Wow, I just looked at the tpm code, and it is, um, "interesting" in how
it thinks device lifespans work.  Nothing like having 4 different
structures with different lifespans embedded within a single structure.
Good thing that no one can dynamically remove a TPM device during
"normal" operation.

The regressions were during suspend then the tpm gets removed.  In
fact I'm pretty sure it is an existing problem that the change in the
lookup just surfaced in a way that the test bot notices, but I didn't
want to guard the block changes on it.