On Thu, May 26, 2016 at 06:34:28PM -0400, Doug Ledford wrote:
> Hi Linus,
> 
> This is the second group of code for the 4.7 merge window.  It looks
> large, but only in one sense.  I'll get to that in a minute.  The list
> of changes here breaks down as follows:
> 
> Round two of 4.7 merge window patches
> 

<...>

> - The big item on the list: hfi1 driver updates, plus moving the hfi1
>   driver out of staging                             <- everything else

Hi Doug and Linus,

The move hfi1 from the staging is a right thing, it was there a long
time and it is almost ready.

However the timing of this move puzzle me, we are in the process of ABI
change [1, 2] as a response to security alert [3]. Moves like this with
proprietary char device and ABI scheme different from whole RDMA stack
will limit the ABI work without real need.

Will this driver be **forced** to adjust to new ABI scheme whenever it
comes? If it is not possible, the better solution to converge on ABI change will be
to leave this driver in staging/rdma and wait till proper solution will be accepted.

Thanks.

[1] http://marc.info/?l=linux-rdma&m=146407111911544&w=2
[2] http://marc.info/?l=linux-rdma&m=146410054120206&w=2
[3] https://git.kernel.org/cgit/linux/kernel/git/dledford/rdma.git/commit/?id=e6bd18f57aad1a2d1ef40e646d03ed0f2515c9e3