Before uploading I did try running dpkg-source -x on the generated source package in a temp directory and verified that your patch was applied correctly on the unpacked source tree.
The package is building now in the PPA and I will let you know what happens.
This is what I'm doing:
$ apt source linux 02.patch master/ changelog -i linux-kernel- 6.8.0 linux_6. 8.0-36. 36ubuntu1+ kip2_source. changes
$ linux-6.8.0
$ quilt new bug218926.patch
$ quilt add fs/9p/vfs_file.c
$ patch -p1 < ../bug218916_fix_option_
$ quilt refresh
$ dch --changelog debian.
$ debuild -S -sa --lintian-opts --no-lintian
$ dput ppa:kip/
Before uploading I did try running dpkg-source -x on the generated source package in a temp directory and verified that your patch was applied correctly on the unpacked source tree.
The package is building now in the PPA and I will let you know what happens.