A new upstream version 5.15.16 is available, you should consider packaging it.
debian/patches: 1 patch with invalid metadata, 5 patches to forward upstream
high
Among the 8 debian patches
available in version 5.15.15+dfsg-2 of the package,
we noticed the following issues:
1 patch with
invalid metadata that ought to be fixed.
5 patches
where the metadata indicates that the patch has not yet been forwarded
upstream. You should either forward the patch upstream or update the
metadata to document its real status.