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Date:      Thu, 14 Jun 2018 18:46:20 +1000 (EST)
From:      Bruce Evans <brde@optusnet.com.au>
To:        Hans Petter Selasky <hps@selasky.org>
Cc:        Matthew Macy <mmacy@freebsd.org>, Ryan Libby <rlibby@freebsd.org>,  src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org,  svn-src-head@freebsd.org, bde@freebsd.org
Subject:   Re: svn commit: r335094 - head/sys/ofed/drivers/infiniband/core
Message-ID:  <20180614182603.U1417@besplex.bde.org>
In-Reply-To: <c14b6b39-22b3-cdb5-d387-829bad3509f3@selasky.org>
References:  <201806132330.w5DNUsrE043573@repo.freebsd.org> <CAHgpiFwQza_CEeu687s-HwnHPT%2BfcPk80nHkbU3Kn-aUM2AjHQ@mail.gmail.com> <CAPrugNq-dGjOhJ7PW5zniggowENW74P5ttCWH01U=AmXcj4gzA@mail.gmail.com> <c14b6b39-22b3-cdb5-d387-829bad3509f3@selasky.org>

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On Thu, 14 Jun 2018, Hans Petter Selasky wrote:

> On 06/14/18 02:03, Matthew Macy wrote:
>> On Wed, Jun 13, 2018 at 4:47 PM, Ryan Libby <rlibby@freebsd.org> wrote:
>>> On Wed, Jun 13, 2018 at 4:30 PM, Matt Macy <mmacy@freebsd.org> wrote:
>>>> Author: mmacy
>>>> Date: Wed Jun 13 23:30:54 2018
>>>> New Revision: 335094
>>>> URL: https://svnweb.freebsd.org/changeset/base/335094
>>>> 
>>>> Log:
>>>>    fix OFED build after r335053
>* ...
> Please revert this patch and fix MKDEV() in:
> compat/linuxkpi/common/include/linux/kdev_t.h
>
> Instead.
>
> The value returned by MKDEV() must be passable through MAJOR() and MINOR() to 
> restore the two arguments. Please make sure this is the case. Else the code 
> gets broken.

Are these macros for conversion of host (FreeBSD) dev_t's or target (Linux)
ones?  If for the host, then I don't see any reason not to use the host APIs.
If for the target, then they shouldn't be used with the host dev_t.  If for
a mixture, then the translations are very confusing, especially when they
are the identity, and many more macros are needed to reduce the confusion.

Bruce


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