On version 11 of the "drm/panic: Add a drm panic handler" series [1], Thomas suggested to change the name of the function `drm_panic_gem_get_scanout_buffer` to `drm_fb_dma_get_scanout_buffer` and this request was applied on version 12, which is the version that landed [2]. Although the name of the function changed on the C file, it didn't changed on the header file, leading to a compilation error as such: drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c:780:24: error: use of undeclared identifier 'drm_fb_dma_get_scanout_buffer'; did you mean 'drm_panic_gem_get_scanout_buffer'? 780 | .get_scanout_buffer = drm_fb_dma_get_scanout_buffer, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | drm_panic_gem_get_scanout_buffer ./include/drm/drm_fb_dma_helper.h:23:5: note: 'drm_panic_gem_get_scanout_buffer' declared here 23 | int drm_panic_gem_get_scanout_buffer(struct drm_plane *plane, | ^ 1 error generated. Fix the compilation error by changing `drm_panic_gem_get_scanout_buffer` to `drm_fb_dma_get_scanout_buffer` on the header file. Link: https://lore.kernel.org/dri-devel/20240328120638.468738-1-jfalempe@redhat.com/ [1] Link: https://lore.kernel.org/dri-devel/aea2aa01-7f03-453b-8b30-8f4d90b1b47f@redhat.com/ [2] Fixes: 879b3b6511fe ("drm/fb_dma: Add generic get_scanout_buffer() for drm_panic") Signed-off-by: Maíra Canal <mcanal@igalia.com> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240415151013.3210278-1-mcanal@igalia.com
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the reStructuredText markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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