Then please never submit any patches to LKML because the last thing a maintainer needs is a court case from some entitled newbie that can't be bothered to read the documentation and on top of that is so focused on accreditation that they are willing to go nuclear over a teensy contribution.
FWIW a submission to LKML does not come with any kind of guarantees for either accreditation, use, timeliness or consideration. You are making a small gift to the Linux kernel and all of its users and as such you are being thanked. Hopefully you got more value out of the Linux kernel than you contributed on account of the work that others have put in. The LKML record will suffice to prove your claims of copyright but realize that your work does not stand on its own, it is always going to be within a larger context. Try affixing a (C) Worewood to a patch you intend for inclusion and send it to LKML and see how you'll fare.
FWIW a submission to LKML does not come with any kind of guarantees for either accreditation, use, timeliness or consideration. You are making a small gift to the Linux kernel and all of its users and as such you are being thanked. Hopefully you got more value out of the Linux kernel than you contributed on account of the work that others have put in. The LKML record will suffice to prove your claims of copyright but realize that your work does not stand on its own, it is always going to be within a larger context. Try affixing a (C) Worewood to a patch you intend for inclusion and send it to LKML and see how you'll fare.