Just updated to the pre-release Fedora 30 (Rawhide) on the test system, and tried out the new version of GCC: $ gcc –version gcc (GCC) 9.0.1 20190209 (Red Hat 9.0.1-0.4) Kernel 5.0-rc7 compiled successfully, and runs OK.    As expected, there were quite a lot of compiler ‘warnings’: ………………….. CC net/ipv4/proc.o CC drivers/hid/hid-samsung.o CC net/ipv4/fib_rules.o CC drivers/hid/hid-sunplus.o fs/xfs/xfs_ioctl32.c: … Continue reading →