RDMA/ucma: Add .nodename/.mode to tell userspace where to create device node

We want udev to create a device node under /dev/infiniband with
permission 0666 for rdma_cm, so add that info to our struct miscdevice.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index b3fa798525b2..3170899dab01 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -1338,9 +1338,11 @@ static const struct file_operations ucma_fops = {
 };
 
 static struct miscdevice ucma_misc = {
-        .minor  = MISC_DYNAMIC_MINOR,
-        .name   = "rdma_cm",
-        .fops   = &ucma_fops,
+        .minor          = MISC_DYNAMIC_MINOR,
+        .name           = "rdma_cm",
+        .nodename       = "infiniband/rdma_cm",
+        .mode           = 0666,
+        .fops           = &ucma_fops,
 };
 
 static ssize_t show_abi_version(struct device *dev,