[ewg] [PULL][OFED 3.18] 7.1 compat patches

[Vladimir Sokolovsky]

On 06/03/15 17:27, Marciniszyn, Mike wrote:
> Vlad,
>
> In the process of testing qib build on RHEL7.1, we needed to fix some underlying compat issues.
>
> Once compat builds, qib appears to build without issue on these kernels:
> RHEL7 kernel: 3.10.0-123.el7.x86_64
> RHEL7.1 kernel: 3.10.0-229.el7.x86_64 (RC 2)
>
> These fixes are:
> 1. Fix a warning introduced by prior work.
> 2. Added conditionally defined smp_mb__before_clear_bit().   RHEL7.1 <asm/bitops.h> no longer provides the define in all cases.
> 3. Detect reinit_completion().   RHEL7.1 now defines this in its native headers.
>
> I realize that #2 and #3 might have already been done by someone else.
>
> The <asm/bitops.h> work  in compat really needs some more attention.
>
> I suspect that the compat version of <asm/bitops.h> really should be <linux/bitops.h> with autoconf driven ifdefs or other ifdefs for the macros.
>
> Please pull from these fixes from ~mmarciniszyn/scm/new_ofed/compat from the for-ofed-3.18 branch:
>

Done + build:
https://openfabrics.org/downloads/OFED/ofed-3.18-daily/OFED-3.18-20150310-0622.tgz

Regards,
Vladimir


> commit 70bfc3152e7efb47278b80fd8bebed3d639b9c8a
> Author: Mike Marciniszyn <mike.marciniszyn at intel.com>
> Date:   Wed Mar 4 11:57:49 2015 -0500
>
>      compat: determine if reinit_completion() is present
>
>      Use HAVE_REINIT_COMPLETION to avoid duplicate definition.
>
>      Signed-off-by: Mike Marciniszyn <mike.marciniszyn at intel.com>
>
> commit 0689335320e4aab4b5fe949143e103688c901c03
> Author: Mike Marciniszyn <mike.marciniszyn at intel.com>
> Date:   Wed Mar 4 11:37:59 2015 -0500
>
>      compat: add smp_mb__before_clear_bit as necessary
>
>      RHEL7.1 no longer has the above macro in <asm/bitops.h>.
>
>      Add it in the compat version of <linux/bitops> as if
>      <asm/bitops.h> had provided it.
>
>      This really include probably needs to be reworked using
>      the autoconf stuff.
>
>      Signed-off-by: Mike Marciniszyn <mike.marciniszyn at intel.com>
>
> commit 4f7837df4805267af03a6655b44a7f5c3f7f1891
> Author: Mike Marciniszyn <mike.marciniszyn at intel.com>
> Date:   Wed Mar 4 12:30:44 2015 -0500
>
>      Correct HAVE_PCI_DEV_PCIE_MPSS spelling
>
>      Commit fef932831471 ("autoconf options for qib driver for RHEL 6.6)
>      introduced a build warning because of a spelling error.
>
>      Signed-off-by: Mike Marciniszyn <mike.marciniszyn at intel.com>
>
>
>
>