diff options
| author | Dave Jones <davej@redhat.com> | 2006-12-12 18:13:32 -0500 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2006-12-12 18:13:32 -0500 |
| commit | f0eef25339f92f7cd4aeea23d9ae97987a5a1e82 (patch) | |
| tree | 2472e94d39f43a9580a6d2d5d92de0b749023263 /drivers/infiniband/hw/ipath/ipath_mad.c | |
| parent | 0cfea5dd98205f2fa318836da664a7d7df1afbc1 (diff) | |
| parent | e1036502e5263851259d147771226161e5ccc85a (diff) | |
Merge ../linus
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_mad.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_mad.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_mad.c b/drivers/infiniband/hw/ipath/ipath_mad.c index 72d1db89db8..25908b02fbe 100644 --- a/drivers/infiniband/hw/ipath/ipath_mad.c +++ b/drivers/infiniband/hw/ipath/ipath_mad.c @@ -87,7 +87,8 @@ static int recv_subn_get_nodeinfo(struct ib_smp *smp, struct ipath_devdata *dd = to_idev(ibdev)->dd; u32 vendor, majrev, minrev; - if (smp->attr_mod) + /* GUID 0 is illegal */ + if (smp->attr_mod || (dd->ipath_guid == 0)) smp->status |= IB_SMP_INVALID_FIELD; nip->base_version = 1; @@ -131,10 +132,15 @@ static int recv_subn_get_guidinfo(struct ib_smp *smp, * We only support one GUID for now. If this changes, the * portinfo.guid_cap field needs to be updated too. */ - if (startgx == 0) - /* The first is a copy of the read-only HW GUID. */ - *p = to_idev(ibdev)->dd->ipath_guid; - else + if (startgx == 0) { + __be64 g = to_idev(ibdev)->dd->ipath_guid; + if (g == 0) + /* GUID 0 is illegal */ + smp->status |= IB_SMP_INVALID_FIELD; + else + /* The first is a copy of the read-only HW GUID. */ + *p = g; + } else smp->status |= IB_SMP_INVALID_FIELD; return reply(smp); |