[PATCH v2] drm/print: Introduce drm_line_printer

[John Harrison]

On 5/30/2024 12:37, Jani Nikula wrote:
> On Thu, 30 May 2024, John Harrison <john.c.harrison at intel.com> wrote:
>> Except that the whole reason this was started was because Michal
>> absolutely refuses to allow line counted output in a sysfs/debugfs
>> file because "it is unnecessary and breaks the decoding tools".
> I'm only looking at this patch at face value, it seems useful to me, but
> I'm not aware of any deeper context. And judging by the tone of the
> discussion, I also don't want to get into it.
>
> That said, might be prudent to post a patch using the line printer along
> with its addition.
See:
     https://patchwork.freedesktop.org/series/134695/

Patches #5 and #6 make use of the line printer. Although as mentioned in 
that patch set, the usage there is still just a stop-gap measure and 
both those usages are intended to be replaced once the issues with the 
devcoredump version are resolved. The ultimate aim would be to use the 
line printer from just one function which dumps a devcoredump capture to 
dmesg. That function can then be used from the dead CT code and any 
other random debug effort a random developer is working on locally.

John.

>
> Over and out.
>
>
> BR,
> Jani.
>