Re: [PATCH 0/4] drm/panic: Add a qr_code panic screen

[Alice Ryhl <aliceryhl@google.com>]

On Wed, Jul 3, 2024 at 5:44 PM Jocelyn Falempe <jfalempe@redhat.com> wrote:
>
> This series adds a new panic screen, with the kmsg data embedded in a QR-code.
>
> The main advantage of QR-code, is that you can copy/paste the debug data to a bug report.
>
> The QR-code encoder is written in rust, and is very specific to drm_panic.
> The reason is that it is called in a panic handler, and thus can't allocate memory, or use locking.
> The rust code uses a few rust core API, and provides only two C entry points.
> There is no particular reason to do it in rust, I just wanted to learn rust, and see if it can work in the kernel.
>
> If you want to see what it looks like, I've put a few screenshots here:
> https://github.com/kdj0c/panic_report/issues/1
>
> --
>
> Jocelyn
>
>
> Jocelyn Falempe (4):
>   drm/panic: Add integer scaling to blit()
>   drm/rect: add drm_rect_overlap()
>   drm/panic: simplify logo handling
>   drm/panic: Add a qr_code panic screen
>
>  drivers/gpu/drm/Kconfig         |  29 +
>  drivers/gpu/drm/Makefile        |   1 +
>  drivers/gpu/drm/drm_drv.c       |   3 +
>  drivers/gpu/drm/drm_panic.c     | 338 +++++++++--
>  drivers/gpu/drm/drm_panic_qr.rs | 989 ++++++++++++++++++++++++++++++++
>  include/drm/drm_panic.h         |   4 +
>  include/drm/drm_rect.h          |  15 +
>  7 files changed, 1340 insertions(+), 39 deletions(-)
>  create mode 100644 drivers/gpu/drm/drm_panic_qr.rs
>
>
> base-commit: 3f5ea7ed705e8effe9cfabf912e769ccb6b7d389

I tried to apply this patch, but I can't find this commit, nor could I
find any tag that it applies on.

Alice