Re: [PATCH 2/2] powerpc/64s/syscall: Fix ptrace syscall info with scv syscalls
From: Dmitry V. Levin <hidden>
Date: 2021-05-20 11:45:44
On Thu, May 20, 2021 at 09:19:31PM +1000, Nicholas Piggin wrote:
The scv implementation missed updating syscall return value and error
value get/set functions to deal with the changed register ABI. This
broke ptrace PTRACE_GET_SYSCALL_INFO as well as some kernel auditing
and tracing functions.
Fix. tools/testing/selftests/ptrace/get_syscall_info now passes when
scv is used.
Fixes: 7fa95f9adaee ("powerpc/64s: system call support for scv/rfscv instructions")
Reported-by: "Dmitry V. Levin" <redacted>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>Thanks, feel free to add Reviewed-by: Dmitry V. Levin <redacted> Also consider adding Cc: stable@vger.kernel.org # 5.9+ -- ldv