linux/drivers/infiniband/core
Roland Dreier 79e2595940 IB/addr: Fix setting source address in addr6_resolve()
Commit eea40b8f62 ("infiniband: call ipv6 route lookup via the stub
interface") introduced a regression in address resolution when connecting
to IPv6 destination addresses.  The old code called ip6_route_output(),
while the new code calls ipv6_stub->ipv6_dst_lookup().  The two are almost
the same, except that ipv6_dst_lookup() also calls ip6_route_get_saddr()
if the source address is in6addr_any.

This means that the test of ipv6_addr_any(&fl6.saddr) now never succeeds,
and so we never copy the source address out.  This ends up causing
rdma_resolve_addr() to fail, because without a resolved source address,
cma_acquire_dev() will fail to find an RDMA device to use.  For me, this
causes connecting to an NVMe over Fabrics target via RoCE / IPv6 to fail.

Fix this by copying out fl6.saddr if ipv6_addr_any() is true for the original
source address passed into addr6_resolve().  We can drop our call to
ipv6_dev_get_saddr() because ipv6_dst_lookup() already does that work.

Fixes: eea40b8f62 ("infiniband: call ipv6 route lookup via the stub interface")
Cc: <stable@vger.kernel.org> # 3.12+
Signed-off-by: Roland Dreier <roland@purestorage.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-07 14:34:19 -04:00
..
addr.c IB/addr: Fix setting source address in addr6_resolve() 2017-06-07 14:34:19 -04:00
agent.c
agent.h
cache.c
cgroup.c
cm_msgs.h
cm.c RDMA/SA: Fix kernel panic in CMA request handler flow 2017-06-01 17:20:14 -04:00
cma_configfs.c
cma.c RDMA/SA: Fix kernel panic in CMA request handler flow 2017-06-01 17:20:14 -04:00
core_priv.h RDMA/netlink: Reduce exposure of RDMA netlink functions 2017-06-01 17:20:11 -04:00
cq.c
device.c
fmr_pool.c
iwcm.c
iwcm.h
iwpm_msg.c
iwpm_util.c
iwpm_util.h
mad_priv.h
mad_rmpp.c
mad_rmpp.h
mad.c
Makefile
mr_pool.c
multicast.c
netlink.c RDMA/netlink: Reduce exposure of RDMA netlink functions 2017-06-01 17:20:11 -04:00
opa_smi.h
packer.c
rdma_core.c
rdma_core.h
roce_gid_mgmt.c
rw.c
sa_query.c RDMA/SA: Fix kernel panic in CMA request handler flow 2017-06-01 17:20:14 -04:00
sa.h
smi.c
smi.h
sysfs.c
ucm.c char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
ucma.c IB/SA: Add OPA path record type 2017-05-01 14:39:02 -04:00
ud_header.c
umem_odp.c RDMA/umem: Fix missing mmap_sem in get umem ODP call 2017-06-01 17:20:13 -04:00
umem_rbtree.c
umem.c RDMA/core: not to set page dirty bit if it's already set. 2017-06-01 17:20:12 -04:00
user_mad.c char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
uverbs_cmd.c
uverbs_main.c char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
uverbs_marshall.c RDMA/uverbs: Declare local function static and add brackets to sizeof 2017-06-01 17:20:12 -04:00
uverbs_std_types.c
uverbs.h
verbs.c