* linux/syscall.h (SYS_socket_subcall): Bump to 400. * linux/syscallent.h: Update table. * linux/arm/syscallent.h: Likewise. * linux/m68k/syscallent.h: Likewise. * linux/s390/syscallent.h: Likewise. * linux/s390x/syscallent.h: Likewise. Fixes RH#202620.