2006-01-07 17:07:15

by Roland Dreier

Subject: [git patch review 1/2] IB/uverbs: Release event file reference on ib_uverbs_create_cq() error

ib_uverbs_create_cq() should release the completion channel event file
if an error occurs after it looks it up. Also, if userspace asks for
a completion channel and we don't find it, an error should be returned
instead of silently creating a CQ without a completion channel.

Signed-off-by: Jack Morgenstein <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>

---

drivers/infiniband/core/uverbs_cmd.c | 13 ++++++++++---
1 files changed, 10 insertions(+), 3 deletions(-)

ac4e7b35579de55db50d602a472858867808a9c3
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 12d6cc0..a02c5a0 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -594,13 +594,18 @@ ssize_t ib_uverbs_create_cq(struct ib_uv
if (cmd.comp_vector >= file->device->num_comp_vectors)
return -EINVAL;

- if (cmd.comp_channel >= 0)
- ev_file = ib_uverbs_lookup_comp_file(cmd.comp_channel);
-
uobj = kmalloc(sizeof *uobj, GFP_KERNEL);
if (!uobj)
return -ENOMEM;

+ if (cmd.comp_channel >= 0) {
+ ev_file = ib_uverbs_lookup_comp_file(cmd.comp_channel);
+ if (!ev_file) {
+ ret = -EINVAL;
+ goto err;
+ }
+ }
+
uobj->uobject.user_handle = cmd.user_handle;
uobj->uobject.context = file->ucontext;
uobj->uverbs_file = file;
@@ -664,6 +669,8 @@ err_up:
ib_destroy_cq(cq);

err:
+ if (ev_file)
+ ib_uverbs_release_ucq(file, ev_file, uobj);
kfree(uobj);
return ret;
}
--
0.99.9n

2006-01-07 17:07:14

by Roland Dreier

Subject: [git patch review 2/2] IB: Set GIDs correctly in ib_create_ah_from_wc()

ib_create_ah_from_wc() doesn't create the correct return address (AH)
when there is a GRH present (source & dest GIDs need to be swapped).

Signed-off-by: Ralph Campbell <[email protected]>
Signed-off-by: Sean Hefty <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>

---

drivers/infiniband/core/verbs.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

4f8448dfe8d3804fadad90c9b77494238b4a4eae
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 4c15e11..c857361 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -107,9 +107,9 @@ struct ib_ah *ib_create_ah_from_wc(struc

if (wc->wc_flags & IB_WC_GRH) {
ah_attr.ah_flags = IB_AH_GRH;
- ah_attr.grh.dgid = grh->dgid;
+ ah_attr.grh.dgid = grh->sgid;

- ret = ib_find_cached_gid(pd->device, &grh->sgid, &port_num,
+ ret = ib_find_cached_gid(pd->device, &grh->dgid, &port_num,
&gid_index);
if (ret)
return ERR_PTR(ret);
--
0.99.9n