Re: stable-rc: 5.15: arm: fsl_dcu_drm_plane.c:176:20: error: 'drm_plane_helper_destroy' undeclared here

On Wed, Aug 09, 2023 at 11:47:45AM +0530, Naresh Kamboju wrote:

While building Linux stable rc 5.15 arm with gcc-13 failed due to following warnings / errors.

I appreciate you attempting to build older LTS trees with newer compilers, but note that usually, as you are finding out, this doesn't work.

Right now I've finally gotten support for gcc-12 in all active stable kernel trees, gcc-13 takes more work as you are finding out so I'm only testing with newer trees (6.1 and newer).

So when you run into issues like this, that obviously work in newer kernel releases, a report doesn't do much, BUT a git commit id of what the commit that needs to be backported IS appreciated.

thanks,

greg k-h