On 17/08/2020 13:21, Greg KH wrote: > On Mon, Aug 17, 2020 at 12:36:25PM -0300, Guilherme G. Piccoli wrote: >> Hi Greg / Thomas and all involved here. First, apologies for >> necro-bumping this thread, but I'm working a backport of this patch to >> kernel 4.15 (Ubuntu) and then I noticed we have it on stable, but only >> in 4.19+. >> >> Since the fixes tag presents an old commit (since ~3.19), I'm curious if >> we have a special reason to not have it on long-term stables, like 4.9 >> or 4.14. It's a subtle portion of arch code, so I'm afraid I didn't see >> something that prevents its backport for previous versions. > > What is the git commit id of this patch you are referring to, you didn't > provide any context here :( > > thanks, > > greg k-h > I'm sorry, I hoped the subject + thread would suffice heh So, the mainline commit is: f8a8fe61fec8 ("x86/irq: Seperate unused system vectors from spurious entry again") [0]. The backport to 4.19 stable tree has the following id: fc6975ee932b . Thanks, Guilherme [0] http://git.kernel.org/linus/f8a8fe61fec8