[PATCH 1/5] drm/amd/display: Remove migrate_en/dis from dc_fpu_begin().

Sebastian Andrzej Siewior bigeasy at linutronix.de
Wed Oct 4 08:53:25 UTC 2023


On 2023-10-03 15:53:41 [-0400], Harry Wentland wrote:
> On 2023-09-21 10:15, Sebastian Andrzej Siewior wrote:
> > This is a revert of the commit mentioned below while it is not wrong, as
> > in the kernel will explode, having migrate_disable() here it is
> > complete waste of resources.
> > 
> > Additionally commit message is plain wrong the review tag does not make
> 
> Not sure I follow what's unhelpful about the review tag with
> 0c316556d1249 ("drm/amd/display: Disable migration to ensure consistency of per-CPU variable")

I explained it below with two points what the reviewer should have
noticed why reading the commit message even if he does not know what
migrate_disable() itself does.

> I do wish the original patch showed the splat it's attempting
> to fix. It apparently made a difference for something, whether
> inadvertently or not. I wish I knew what that "something" was.

As far as I can tell the patch does make a difference.

> Harry

Sebastian


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