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authorBart Van Assche <bvanassche@acm.org>2011-06-18 16:35:42 +0000
committerRoland Dreier <roland@purestorage.com>2011-07-18 16:44:30 -0700
commit10e1b54bbb51ac134c51996022f3bd10579fbd3b (patch)
tree6b535275efbefb7f32d6bec89c21a05a902f655d /drivers/infiniband/core
parent620917de59eeb934b9f8cf35cc2d95c1ac8ed0fc (diff)
RDMA: Allow for NULL .modify_device() and .modify_port() methods
These methods don't make sense for iWARP devices, so rather than forcing them to implement stubs, just return -ENOSYS in the core if the hardware driver doesn't set .modify_device and/or .modify_port. Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/core')
-rw-r--r--drivers/infiniband/core/device.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 4007f721d25d..e711de400a01 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -627,6 +627,9 @@ int ib_modify_device(struct ib_device *device,
int device_modify_mask,
struct ib_device_modify *device_modify)
{
+ if (!device->modify_device)
+ return -ENOSYS;
+
return device->modify_device(device, device_modify_mask,
device_modify);
}
@@ -647,6 +650,9 @@ int ib_modify_port(struct ib_device *device,
u8 port_num, int port_modify_mask,
struct ib_port_modify *port_modify)
{
+ if (!device->modify_port)
+ return -ENOSYS;
+
if (port_num < start_port(device) || port_num > end_port(device))
return -EINVAL;