[PATCH rdma-core v3 0/3] Dma-buf related fixes

[Jianxin Xiong]

This is the third version of the patch series. Change log:

v3:
* Limit the use of find_path() to checking headers installed by the
  kernel-headers package only
* Add status summary when DRM headers are not found
* Rework how dmabuf_alloc.c or dmabuf_alloc_stub.c is selected

v2: https://www.spinics.net/lists/linux-rdma/msg99838.html
* Use pgk_check_modules() to check libdrm configuration instead of calling
  pkg-config directly
* Put all the DRM header checking logic in CMakeLists.txt
* Use a seperate source file for dma-buf allocation stubs
* Remove the definition of HAVE_DRM_H from config.h
* Add space between the acronym and the full name

v1: https://www.spinics.net/lists/linux-rdma/msg99815.html
* Fix compilation warnings for 32bit builds
* Cosmetic improvement for dma-buf allocation routines
* Add check for DRM headers

This series fixes a few issues related to the dma-buf support. It consists
of three patches. The first patch fixes a compilation warning for 32-bit
builds. Patch 2 renames a function parameter and adds full name to an
acronym. Patch 3 adds check for DRM headers.

Pull request at github: https://github.com/linux-rdma/rdma-core/pull/942

Jianxin Xiong (3):
  verbs: Fix gcc warnings when building for 32bit systems
  pyverbs,tests: Cosmetic improvements for dma-buf allocation routines
  configure: Add check for DRM headers

 CMakeLists.txt              | 17 ++++++++++
 libibverbs/cmd_mr.c         |  2 +-
 libibverbs/verbs.c          |  2 +-
 pyverbs/CMakeLists.txt      |  8 ++++-
 pyverbs/dmabuf.pyx          | 12 +++----
 pyverbs/dmabuf_alloc.c      | 20 ++++++------
 pyverbs/dmabuf_alloc.h      |  2 +-
 pyverbs/dmabuf_alloc_stub.c | 39 +++++++++++++++++++++++
 pyverbs/mr.pyx              |  6 ++--
 tests/test_mr.py            | 78 ++++++++++++++++++++++-----------------------
 10 files changed, 124 insertions(+), 62 deletions(-)
 create mode 100644 pyverbs/dmabuf_alloc_stub.c

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1.8.3.1