linux-kernel - Re: [PATCH] bochs: convert to drm_fb_helper_fbdev

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Date:   Thu, 6 Sep 2018 09:23:54 +0200
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     Peter Wu <peter@...ensteyn.nl>
Cc:     David Airlie <airlied@...ux.ie>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH] bochs: convert to drm_fb_helper_fbdev_setup/teardown

  Hi,

> > You can probably get rid of this one if you're refactoring even more. The
> > generic fb_probe implementation (already merged) plus gem-shmem support
> > for it (still in flight) from Noralf should be able to pull that off. That
> > gives you the fb_mmap implementation, but with 100% generic code instead
> > of a driver specific hack like Max did.
> 
> Aside from the warning, I have not observed actual issues. This patch
> was prepared on top of v4.18.1 but the new drm_fb_helper_generic_probe
> helper is in master (future 4.19). I suppose that it can be done as a
> future cleanup. Nice work Noralf on reducing duplication!

FYI: qemu kms driver patches go through drm-misc-next, so you can also
work against that branch.

> > I'll leave merging to Gerd.
> 
> Thanks, I somehow missed a patch. This one does not compile due to
> "fb.initialized" still being used in bochs_drv.c. Removal is trivial,
> I'll wait for some more feedback and then send a v2 with another patch
> prepended.

Patch looks good to me (except for the build failure which you've
noticed already).

cheers,
  Gerd