From: Vitaliy Makkoveev <mvs@openbsd.org>
Subject: Re: mark IPv6 route6 and dest6 input MP-safe
To: Alexander Bluhm <bluhm@openbsd.org>
Cc: tech@openbsd.org
Date: Mon, 23 Jun 2025 15:37:27 +0300

On Thu, Jun 19, 2025 at 08:08:42PM +0200, Alexander Bluhm wrote:
> On Thu, May 22, 2025 at 03:48:10PM +0900, Alexander Bluhm wrote:
> > Hi,
> > 
> > Both functions dest6_input() and route6_input() for IPv6 destination
> > options and routing header do not use global state.  Mark them as
> > MP-safe.  Note that ip6_unknown_opt() is already running in parallel
> > for hop-by-hop options.
> > 
> > ok?
> 
> anyone?
> 

ok mvs

> > bluhm
> > 
> > Index: netinet6/in6_proto.c
> > ===================================================================
> > RCS file: /data/mirror/openbsd/cvs/src/sys/netinet6/in6_proto.c,v
> > diff -u -p -r1.127 in6_proto.c
> > --- netinet6/in6_proto.c	20 May 2025 18:41:06 -0000	1.127
> > +++ netinet6/in6_proto.c	22 May 2025 06:10:19 -0000
> > @@ -183,14 +183,14 @@ const struct protosw inet6sw[] = {
> >    .pr_type	= SOCK_RAW,
> >    .pr_domain	= &inet6domain,
> >    .pr_protocol	= IPPROTO_DSTOPTS,
> > -  .pr_flags	= PR_ATOMIC|PR_ADDR,
> > +  .pr_flags	= PR_ATOMIC|PR_ADDR|PR_MPINPUT,
> >    .pr_input	= dest6_input
> >  },
> >  {
> >    .pr_type	= SOCK_RAW,
> >    .pr_domain	= &inet6domain,
> >    .pr_protocol	= IPPROTO_ROUTING,
> > -  .pr_flags	= PR_ATOMIC|PR_ADDR,
> > +  .pr_flags	= PR_ATOMIC|PR_ADDR|PR_MPINPUT,
> >    .pr_input	= route6_input
> >  },
> >  {
>