Linux 5.3 rc4

I mentioned last week that rc3 was unusually small.Well, we fixed that. The small size of rc3 was clearly just because ofpull request timing patterns, and rc4 is back up to normal size andthen some.Part of it is networking - rc3 didn't have any net updates, and rc4does. But it's not just that, I think we just happened to have severalthings that shifted to this past week instead of having made it intorc3.It is worth nothing that while this rc is the largest rc4 (at least innumber of commits) that we've had in a couple of years, it's notreally outrageously so - it really is just larger than usual by aboutthe same amount that rc3 was smaller than usual.So I'm not worried, I'm just pointing out a random and somewhat unusual pattern.Outside of the networking changes that came in this week, there's alittle bit of everything - drivers being most of it as usual (sound,gpu, hid, pinctrl, usb, misc - in addition to the networking drivers,of course). But we also have the usual arch updates (x86, arm64,s390), various tooling updates (selftests and perf), documentation,and filesystems fixes (gfs2, nfs). And fall-through comment updates(although the current discussion is about hopefully fairly soonturning the comments into actual statement attributes, which is themodern non-lint way of doing it).The rc isn't so big that you can't just scroll through the shortlogbelow to get a feel for the kind of details we have. Nothing looksparticularly scary, although the swapgs speculation thing made thenews, I guess.                    Linus