Linux 5.5 rc6

Things have picked up a _bit_ after the holiday season, but it's stillpretty quiet. Not outrageously so: this could almost be a normal rc5,just slightly calmer than usual.Let's see how things go. I do suspect that this ends up being one ofthose "rc8" releases, not because things look particularly bad rightnow, but simply because the holiday season has meant that both thetesting side and the development side have been quiet. But who knows?It's entirely possible that we'll just have a very quiet next twoweeks, and I go "there is no point in delaying things".So nothing looks particularly worrisome, and normally I'd be veryhappy with a quiet rc6. I just suspect that there's some pent-up workstill, and I'm left waiting for the other shoe to drop...Anyway, rc6 is dominated mostly by drivers. There's a little bit ofeverything there: networking perhaps stands out, but there's USB, GPU,HID, MTD, sound, gpio, block and misc other driver updates there.Outside of drivers, there's core networking, some minor arch updates(ARC, RISC-V, one arm64 revert), some tracing fixes, and a set offixes for the clone3() system callBut all of it is pretty small, and nothing really looks scary at all.Scan the shortlog below if you are into that, but otherwise just goforth and test it out all,             Linus