[PATCH 0/6] Ancillary bus implementation and SOF multi-client support

[gregkh at linuxfoundation.org]

On Thu, Oct 01, 2020 at 10:26:59AM -0300, Jason Gunthorpe wrote:
> On Thu, Oct 01, 2020 at 02:55:26PM +0200, gregkh at linuxfoundation.org wrote:
> > So, what happened to at least the Intel SOF driver usage?  That was the
> > original user of this bus (before it was renamed), surely that patchset
> > should be floating around somewhere in Intel, right?
> 
> The first user was irdma (the New Intel RDMA driver):
> 
> https://lore.kernel.org/linux-rdma/20200520070415.3392210-1-jeffrey.t.kirsher@intel.com/
> 
> (look at patch 1, search for virtbus)

My apologies, you are correct, it's been so long "in flight" that I
can't remember...

> I kicked it off when I said I was sick of RDMA RoCE drivers
> re-implementing the driver core register/unregister and module
> management to share a PCI device between netdev and RDMA.
> 
> This has been going on for almost two years now. I did not think it
> would be so hard.

It really isn't, I have no idea why it has taken so long.

For a while I thought it was people doing the traditional, "if I submit
something so bad, it will make the maintainer take pity and just do it
correctly themselves" method of kernel development, and if so, it failed
horribly.  Now I just have no idea why it has taken so long, sad...

greg k-h