On Wed, Mar 14, 2018 at 03:53:02PM -0400, Doug Ledford wrote:
> On Thu, 2018-03-08 at 19:00 +0200, Leon Romanovsky wrote:
> > rom: Leon Romanovsky <leonro@xxxxxxxxxxxx>
> >
> > In commit 357d23c811a7 ("Remove the obsolete libibcm library")
> > in rdma-core [1], we removed obsolete library which used the
> > /dev/infiniband/ucmX interface. As it can be seen from
> > the discussion in that PR, all major distributions dropped
> > that library long time ago.
>
> Correction. The library wasn't dropped (by Red Hat anyway), we just
> didn't use it ourselves (meaning it was not used by any software that we
> shipped, but we still shipped it in case someone's out of box software
> used it). We didn't drop it until rdma-core dropped it. I'm not sure
> we can take this patch yet as the kernel should maintain backward
> compatibility with older apps using the old library for at least some
> period of time.
I think the concern is that if we were to run syzkaller on it then it
will have lots of bad bugs..
Who is going to spend time to fix an obsolete API? :(
Jason
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