Re: [PATCH v8 2/2] IB/core: use MAP_DIRECT to fix / enable RDMA to DAX mappings

[Dan Williams <dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>]

On Sat, Oct 7, 2017 at 11:45 PM, kbuild test robot <lkp-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> wrote:
> Hi Dan,
>
> [auto build test ERROR on rdma/master]
> [also build test ERROR on v4.14-rc3 next-20170929]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

This was a fixed up resend of patch [v7 11/12]. It's not clear how to
teach the kbuild robot to be aware of patch-replies to individual
patches in the series. I.e. reworked patches without resending the
complete series?

> url:    https://github.com/0day-ci/linux/commits/Dan-Williams/iommu-up-level-sg_num_pages-from-amd-iommu/20171008-133505
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma.git master
> config: i386-randconfig-n0-201741 (attached as .config)
> compiler: gcc-4.8 (Debian 4.8.4-1) 4.8.4
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=i386
>
> All errors (new ones prefixed by >>):
>
>>> drivers/infiniband/core/umem.c:39:29: fatal error: linux/mapdirect.h: No such file or directory
>     #include <linux/mapdirect.h>

mapdirect.h indeed does not exist when missing the earlier patches in
the series. It would be slick if the 0day-robot read the the
"in-reply-to" header and auto replaced a patch in a series, but that
would be a feature approaching magic.

>    compilation terminated.
>
> vim +39 drivers/infiniband/core/umem.c
>
>   > 39  #include <linux/mapdirect.h>
>     40  #include <linux/export.h>
>     41  #include <linux/hugetlb.h>
>     42  #include <linux/slab.h>
>     43  #include <rdma/ib_umem_odp.h>
>     44
>
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation