Re: [PATCH 01/13] syscalls: compat: Fix the missing part for __SYSCALL_COMPAT

[Christoph Hellwig]

On Tue, Dec 21, 2021 at 06:08:45PM +0100, Arnd Bergmann wrote:
> > -__SYSCALL(__NR_ptrace, sys_ptrace)
> > +__SC_COMP(__NR_ptrace, sys_ptrace, compat_sys_ptrace)
> >
> 
> Right. We could merge sys_ptrace and compat_sys_ptrace() by adding
> a in_compat_syscall() check, but either way works.

I think merging them would be very useful, including merging
compat_arch_ptrace into arch_ptrace.  But we can leave that for
later.