linux-kernel - Re: mmotm 2022-01-26-21-04 uploaded (gpu/drm/i915/i915_gem

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Message-ID: <8735l9y0lp.fsf@intel.com>
Date:   Thu, 27 Jan 2022 11:44:18 +0200
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     Randy Dunlap <rdunlap@...radead.org>, akpm@...ux-foundation.org,
        broonie@...nel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-next@...r.kernel.org, mhocko@...e.cz,
        mm-commits@...r.kernel.org, sfr@...b.auug.org.au,
        dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org
Subject: Re: mmotm 2022-01-26-21-04 uploaded (gpu/drm/i915/i915_gem_evict.h)

On Wed, 26 Jan 2022, Randy Dunlap <rdunlap@...radead.org> wrote:
> On 1/26/22 21:04, akpm@...ux-foundation.org wrote:
>> The mm-of-the-moment snapshot 2022-01-26-21-04 has been uploaded to
>> 
>>    https://www.ozlabs.org/~akpm/mmotm/
>> 
>> mmotm-readme.txt says
>> 
>> README for mm-of-the-moment:
>> 
>> https://www.ozlabs.org/~akpm/mmotm/
>> 
>> This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
>> more than once a week.
>> 
>> You will need quilt to apply these patches to the latest Linus release (5.x
>> or 5.x-rcY).  The series file is in broken-out.tar.gz and is duplicated in
>> https://ozlabs.org/~akpm/mmotm/series
>> 
>> The file broken-out.tar.gz contains two datestamp files: .DATE and
>> .DATE-yyyy-mm-dd-hh-mm-ss.  Both contain the string yyyy-mm-dd-hh-mm-ss,
>> followed by the base kernel version against which this patch series is to
>> be applied.
>
> on x86_64:
> (from linux-next.patch)
>
>
>   HDRTEST drivers/gpu/drm/i915/i915_gem_evict.h
> In file included from <command-line>:0:0:
> ./../drivers/gpu/drm/i915/i915_gem_evict.h:15:15: error: ‘struct i915_gem_ww_ctx’ declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
>         struct i915_gem_ww_ctx *ww,
>                ^~~~~~~~~~~~~~~
> ./../drivers/gpu/drm/i915/i915_gem_evict.h:21:14: error: ‘struct i915_gem_ww_ctx’ declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
>        struct i915_gem_ww_ctx *ww,
>               ^~~~~~~~~~~~~~~
> ./../drivers/gpu/drm/i915/i915_gem_evict.h:25:16: error: ‘struct i915_gem_ww_ctx’ declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
>          struct i915_gem_ww_ctx *ww);
>                 ^~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors

Thanks for the report.

This is only visible with CONFIG_DRM_I915_WERROR=y which depends on
COMPILE_TEST=n. We use the "HDRTEST" and -Werror for development and CI
to keep the driver clean, but it's not really intended for general
consumption. Usually when something like this even hits the tree it's
because of a merge mishap somewhere down the line.

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center