On Thu, Dec 10, 2020 at 05:34:08PM +0100, Niklas Schnelle wrote: > Hi Greg, > > sorry to bother you but I missed that the smp_cpu_get_cpu_address() > address used here was only added with the > commit 42d211a1ae3b77 ("s390/cpuinfo: show processor physical address") > which landed in v5.7-rc1. This would therefore break if ever called > (luckily it would not be called on any shipped hardware) and > also causes a missing declaration warning as reported by > Naresh Kamboju thanks! > Since this is as of now just a spec fix, as on all known hardware > the Linux CPU Id always matches the CPU Address, I would > recommend to simply revert the commit. Ok, will go drop it now, thanks. greg k-h