Re: [tpmdd-devel] [PATCH] tpm: remove chip_num parameter from in-kernel API

[Jason Gunthorpe]

On Tue, Oct 24, 2017 at 09:44:30PM +0530, PrasannaKumar Muralidharan wrote:

> I am wondering why it is wrong. Isn't the chip id valid till it is
> unregistered? If so the rfc is correct. Please explain, may be I am
> missing something.

The lifetime is a bit complicated, but the general rule in the kernel
for things like this it to use pointers, not ids, and certainly not
string ids.

For that patch it could just use container_of to get the chip..

Jason