Re: Possible rdma-core header conflict

[Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>]

On Mon, Aug 21, 2017 at 03:03:10PM +0300, Leon Romanovsky wrote:
> On Mon, Aug 21, 2017 at 12:24:14PM +0300, Yigal Korman wrote:
> > Hi,
> > Has anyone noticed that installing rdma-core (or older
> > librdmacm-devel) package and then installing kernel headers manually
> > (make headers_install) removes the librdmacm headers?
> > I actually see it in the make output:
> >
> > make INSTALL_HDR_PATH=/usr headers_install
> >   CHK     include/generated/uapi/linux/version.h
> >   REMOVE  rdma_cma_abi.h rdma_verbs.h rdma_cma.h rsocket.h
> >
> > Am I doing something wrong?
> > Sounds like the kernel rdma headers and librdmacm headers shouldn't
> > sit in the same directory...
> 
> It looks like this behavior (removal of header files) was from the beginning of git era.
> ➜  linux-rdma git:(rdma-next) ✗ git co -b tmp v2.6.34.8
> ➜  linux-rdma git:(tmp) ✗ cp ~/src/rdma-core/librdmacm/rdma_verbs.h /tmp/h/include/rdma/ && make INSTALL_HDR_PATH=/tmp/h headers_install | grep REMOVE
>   REMOVE  rdma_verbs.h

The user space files have also been sharing the directory with the
kernel files since the start.. Not sure why, but I don't think we can
change it now.

Maybe someone can patch the kernel to exempt rdma/ from the removal
process?

Jason
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