On Tue, Dec 21, 2021 at 5:35 PM <guoren@xxxxxxxxxx> wrote: > + > +config SYSVIPC_COMPAT > + def_bool y > + depends on COMPAT && SYSVIPC Can this be moved to init/Kconfig next to SYSVIPC? > + > +COMPAT_SYSCALL_DEFINE0(rt_sigreturn) > +{ > + return 0; > +} This confused me a bit while reviewing, would it make sense to reorder the patches to add the three missing functions first instead of adding the dummy and then replacing it? Arnd