On Thu, 4 May 2023 19:26:11 +0200 Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: > > arch/x86/entry/syscalls/syscall_32.tbl | 1 + > > arch/x86/entry/syscalls/syscall_64.tbl | 1 + > > This should be wired up on each and every architecture. > Currently we're getting > > <stdin>:1567:2: warning: #warning syscall cachestat not implemented [-Wcpp] > > in linux-next for all the missing architectures. Is that wise? We risk adding a syscall to an architecture without the arch maintainers and testers even knowing about it. The compile-time nag is there to inform the arch maintainers that a new syscall is available and that they should wire it up, run the selftest and then ship the code if they're happy with the result.