kernel-boot: Skip rename if the device name is provided by user

Skip renaming device if the name_assign_type is USER. For example a
user created sub-device with provided name "smi0" has this type and
should not be renamed:
 # rdma dev add smi0 type SMI parent ibp8s0f0

Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>

kernel-boot/rdma_rename.c

@@ -57,6 +57,7 @@ struct data {
  uint64_t node_guid;
  char *name;
  int idx;
+ int name_assign_type;
 };
 
 static bool debug_mode;
@@ -555,6 +556,11 @@ static int get_nldata_cb(struct nl_msg *msg, void *data)
 
  d->idx = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
  d->node_guid = nla_get_u64(tb[RDMA_NLDEV_ATTR_NODE_GUID]);
+
+ if (tb[RDMA_NLDEV_ATTR_NAME_ASSIGN_TYPE])
+ d->name_assign_type =
+ nla_get_u8(tb[RDMA_NLDEV_ATTR_NAME_ASSIGN_TYPE]);
+
  return NL_STOP;
 }
 
@@ -639,6 +645,13 @@ int main(int argc, char **argv)
  goto out;
  }
 
+ if (d.name_assign_type == RDMA_NAME_ASSIGN_TYPE_USER) {
+ pr_dbg("%s: Leave user-assigned names, do nothing\n", d.curr);
+ /* Do nothing */
+ ret = 0;
+ goto out;
+ }
+
  if (d.idx == -1 || !d.prefix) {
  pr_err("%s: Failed to get current device name and index\n",
  d.curr);