Re: [PATCH] fbdev: udlfb: make CONFIG_FB_DEVICE optional

Hi

On Thu, Oct 2, 2025 at 8:52 AM Thomas Zimmermann [off-list ref] wrote:

Hi

Am 02.10.25 um 08:41 schrieb Helge Deller:

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kernel test robot noticed the following build errors:

Did you compile and test this code before submitting this patch?

Yes, I had compiled & loaded the udlfb module with no errors. Please
let me know how to proceed in this case.

Look at the reported build error, which seems to happen in dev_dbg().
So, maybe in your testing you did not have debugging enabled?
The report contains the .config file with which you can test.

Can we rather make an effort to remove the udlfb driver entirely? A few
years back, there was one user who was still using it because of some
problems with the DRM udl driver. But I think we've addressed them. The
discussion is at [1].

Should I send a patch series to completely remove udlfb, since [1] echoed that
DRM udl driver is good enough?

[1]
https://lore.kernel.org/dri-devel/20201130125200.10416-1-tzimmermann@suse.de/ (local)

Best regards
Thomas

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Helge

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Thomas Zimmermann
Graphics Driver Developer
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