From mboxrd@z Thu Jan 1 00:00:00 1970 From: Doug Ledford Subject: Re: [PATCH 1/1] rdma: copy the saddr if it is already resolved Date: Wed, 14 Jun 2017 20:12:57 -0400 Message-ID: <1497485577.7171.273.camel@redhat.com> References: <20170609104925.28927-1-rajur@chelsio.com> <1497468245.7171.260.camel@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Robert LeBlanc Cc: Raju Rangoju , linux-rdma , SWise OGC List-Id: linux-rdma@vger.kernel.org On Wed, 2017-06-14 at 16:28 -0600, Robert LeBlanc wrote: > Doug, > > I've run into this with 4.9.30. The aforementioned patch fixes it in > the 4.9 series, but also requires 24b43c996 as well. Can we get this > fix into stable. If needed you can add me as tested-by. > > Tested-by: Robert LeBlanc While I don't doubt that this fixed the problem, the patch from Roland Drier looks more correct to me.  As I've already taken Roland's patch, and it is Cc:ed for stable, it should be resolved already.  I just need Raju to confirm this for me. > ---------------- > Robert LeBlanc > PGP Fingerprint 79A2 9CA4 6CC4 45DD A904  C70E E654 3BB2 FA62 B9F1 > > > On Wed, Jun 14, 2017 at 1:24 PM, Doug Ledford > wrote: > > > > On Fri, 2017-06-09 at 16:19 +0530, Raju Rangoju wrote: > > > > > > The recent changes to addr6_resolve() to call ipv6 route lookup > > > via > > > the stub interface broke cxgb4/ipv6. If the source address is > > > already > > > resolved by ipv6_dst_lookup() then the check > > > ipv6_addr_any(&fl6.saddr) > > > would fail; consequently, copying saddr to the src_in buffer is > > > omitted. > > > > > > This commit addresses the above issue by moving the copy code out > > > of > > > the ipv6_addr_any() block in addr6_resolve(). > > > > > > Signed-off-by: Raju Rangoju > > > --- > > >  drivers/infiniband/core/addr.c | 6 +++--- > > >  1 file changed, 3 insertions(+), 3 deletions(-) > > > > > > diff --git a/drivers/infiniband/core/addr.c > > > b/drivers/infiniband/core/addr.c > > > index 02971e239a18..c32477907765 100644 > > > --- a/drivers/infiniband/core/addr.c > > > +++ b/drivers/infiniband/core/addr.c > > > @@ -454,11 +454,11 @@ static int addr6_resolve(struct > > > sockaddr_in6 > > > *src_in, > > >                                        &fl6.daddr, 0, > > > &fl6.saddr); > > >               if (ret) > > >                       goto put; > > > - > > > -             src_in->sin6_family = AF_INET6; > > > -             src_in->sin6_addr = fl6.saddr; > > >       } > > > > > > +     src_in->sin6_family = AF_INET6; > > > +     src_in->sin6_addr = fl6.saddr; > > > + > > >       /* If there's a gateway and type of device not > > > ARPHRD_INFINIBAND, we're > > >        * definitely in RoCE v2 (as RoCE v1 isn't routable) set > > > the > > > network > > >        * type accordingly. > > > > There was a different fix for this submitted by Roland Drier.  It > > has > > been taken into my k.o/for-4.12-rc branch.  I need you to check > > that > > his patch works for you and renders this patch no longer needed. > > > > -- > > Doug Ledford > >     GPG KeyID: B826A3330E572FDD > > > > Key fingerprint = AE6B 1BDA 122B 23B4 265B  1274 B826 A333 0E57 > > 2FDD > > > > -- > > To unsubscribe from this list: send the line "unsubscribe linux- > > rdma" in > > the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > > More majordomo info at  http://vger.kernel.org/majordomo-info.html -- Doug Ledford     GPG KeyID: B826A3330E572FDD     Key fingerprint = AE6B 1BDA 122B 23B4 265B  1274 B826 A333 0E57 2FDD -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html