On Thu, Mar 7, 2019 at 10:59 AM Peter Zijlstra <[email protected]> wrote: > > On Thu, Mar 07, 2019 at 10:05:43AM -0800, Andy Lutomirski wrote: > > On Thu, Mar 7, 2019 at 3:52 AM Peter Zijlstra <[email protected]> wrote: > > > > > > arch/x86/kernel/signal.o: warning: objtool: restore_sigcontext()+0x3cc: > > > call to force_valid_ss.isra.5() with UACCESS enabled > > > > > > XXX: move the callsite out of te AC=1 region instead? > > > > Let's move it instead. I looked at the code and it should be fine. > > Something like so; or did I miss something subtle?
Reviewed-by: Andy Lutomirski <[email protected]> Also, this stuff is pretty well covered by the x86 selftests, mostly because getting it right in the first place was way too subtle for comfort. --Andy
