linux-kernel - syscall.tbl refactoring seems to have dropped definition of __NR_newfstatat on arm64 and riscv (64-bit) at least

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Message-ID: <87sevoqy7v.fsf@oldenburg.str.redhat.com>
Date: Thu, 01 Aug 2024 13:28:04 +0200
From: Florian Weimer <fweimer@...hat.com>
To: linux-riscv@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org,
 linux-api@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Arnd Bergmann <arnd@...db.de>, Catalin Marinas <catalin.marinas@....com>
Subject: syscall.tbl refactoring seems to have dropped definition of
 __NR_newfstatat on arm64 and riscv (64-bit) at least

It's been repported that __NR_newfstatat has gone missing from the UAPI
headers.

  [sanitizer] __NR_newfstatat not defined in linux kernel headers in
  aarch64
  <https://github.com/llvm/llvm-project/issues/100098>

  __NR_newfstatat no longer defined on aarch64
  <https://bugzilla.redhat.com/show_bug.cgi?id=2301919>

I suspect that's related to the syscall.tbl refactoring around these
commits:

commit e632bca07c8eef1de9dc50f4e4066c56e9d68b07
Author: Arnd Bergmann <arnd@...db.de>
Date:   Thu Jul 4 14:33:34 2024 +0200

    arm64: generate 64-bit syscall.tbl

commit 3db80c999debbadd5d627fb30f8b06fee331ffb6
Author: Arnd Bergmann <arnd@...db.de>
Date:   Wed Apr 24 09:14:39 2024 +0200

    riscv: convert to generic syscall table

Thanks,
Florian