diff options
| author |   Krishna Kumar <krkumar2@in.ibm.com> | 2006-10-16 10:09:01 +0530 |
|---|---|---|
| committer |   Roland Dreier <rolandd@cisco.com> | 2006-11-29 15:33:04 -0800 |
| commit | e82153b54d75af31d5d4a84efe441e5719f34cfc (patch) | |
| tree | cf4fad6438d0d8affa229af1fd02a754bf88450a /drivers/infiniband/core | |
| parent | Linux 2.6.19 (diff) | |
| download | linux-dev-e82153b54d75af31d5d4a84efe441e5719f34cfc.tar.xz linux-dev-e82153b54d75af31d5d4a84efe441e5719f34cfc.zip | |
RDMA/cma: Optimize cma_bind_loopback() to check for empty list
Optimize to test for an empty list first. This ends up simplifying
the code too.
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/core')
| -rw-r--r-- | drivers/infiniband/core/cma.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 845090b0859c..4975d8154a78 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -1481,19 +1481,18 @@ static int cma_bind_loopback(struct rdma_id_private *id_priv) u8 p; mutex_lock(&lock); + if (list_empty(&dev_list)) { + ret = -ENODEV; + goto out; + } list_for_each_entry(cma_dev, &dev_list, list) for (p = 1; p <= cma_dev->device->phys_port_cnt; ++p) - if (!ib_query_port (cma_dev->device, p, &port_attr) && + if (!ib_query_port(cma_dev->device, p, &port_attr) && port_attr.state == IB_PORT_ACTIVE) goto port_found; - if (!list_empty(&dev_list)) { - p = 1; - cma_dev = list_entry(dev_list.next, struct cma_device, list); - } else { - ret = -ENODEV; - goto out; - } + p = 1; + cma_dev = list_entry(dev_list.next, struct cma_device, list); port_found: ret = ib_get_cached_gid(cma_dev->device, p, 0, &gid); |