[PATCH] Don't all __access_noerrno with stack protector from __tunables_init [BZ #21744]

[Florian Weimer]

* H. J. Lu:

> I don't think it works for Hurd.

Yes, generic code cannot use INTERNAL_SYSCALL_CALL.  And it would have
to be INLINE_SYSCALL_CALL to prevent the errno access, I think.