I believe these patches can be upstreamed, even under a pseudonym. Per a recent clarification of their policy: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/lin...

"using your real name" was changed to "using a known identity". And from the commit message:

> And despite the language, we've always accepted nicknames and that language was never meant to be any kind of exclusionary wording. [...] Just simplify the wording to the point where it shouldn't be causing unnecessary angst and pain, or scare away people who go by preferred naming.

That wording would lead me to believe that Asahi Lina as a pseudo-anonymous vtuber would not qualify for upstreaming. It sounds like they want to allow people to use preferred names that might not match their legal name but still are tied to their physical person.

AFAIK Linus has accepted plenty of patches from "Solar Designer" over the years.

At least initially they need someone else signing off with them and potentially even submitting on their behalf. But as it is now, it looks like if you submit high quality contributions for a sustained duration, they can eventually submit as just themselves.