14 files changed, 14 insertions, 168 deletions
diff --git a/host/lib/utils/CMakeLists.txt b/host/lib/utils/CMakeLists.txt
index a9e3ae89a..91a579853 100644
--- a/host/lib/utils/CMakeLists.txt
+++ b/host/lib/utils/CMakeLists.txt
@@ -1,18 +1,7 @@
 #
 # Copyright 2010-2011 Ettus Research LLC
 #
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# SPDX-License-Identifier: GPL-3.0
 #
 
 ########################################################################
diff --git a/host/lib/utils/csv.cpp b/host/lib/utils/csv.cpp
index e0cadcb96..681a6d68e 100644
--- a/host/lib/utils/csv.cpp
+++ b/host/lib/utils/csv.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2011 Ettus Research LLC
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/utils/csv.hpp>
diff --git a/host/lib/utils/gain_group.cpp b/host/lib/utils/gain_group.cpp
index 1a6c0407f..c57a328ed 100644
--- a/host/lib/utils/gain_group.cpp
+++ b/host/lib/utils/gain_group.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2010-2011,2014 Ettus Research LLC
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/utils/gain_group.hpp>
diff --git a/host/lib/utils/ihex.cpp b/host/lib/utils/ihex.cpp
index 98f4fa760..8060f9a47 100644
--- a/host/lib/utils/ihex.cpp
+++ b/host/lib/utils/ihex.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2015 Ettus Research LLC
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "ihex.hpp"
diff --git a/host/lib/utils/ihex.hpp b/host/lib/utils/ihex.hpp
index 8a8f84b15..2b67abe93 100644
--- a/host/lib/utils/ihex.hpp
+++ b/host/lib/utils/ihex.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2015 Ettus Research LLC
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #ifndef INCLUDED_IHEX_READER_HPP
diff --git a/host/lib/utils/load_modules.cpp b/host/lib/utils/load_modules.cpp
index 3ef3c418c..19f2c300c 100644
--- a/host/lib/utils/load_modules.cpp
+++ b/host/lib/utils/load_modules.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2010-2011 Ettus Research LLC
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/utils/paths.hpp>
diff --git a/host/lib/utils/log.cpp b/host/lib/utils/log.cpp
index 6a694ed8e..2e10bc6a3 100644
--- a/host/lib/utils/log.cpp
+++ b/host/lib/utils/log.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2012,2014,2016 Ettus Research LLC
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/utils/log.hpp>
diff --git a/host/lib/utils/log_c.cpp b/host/lib/utils/log_c.cpp
index bd74a4ecc..73fb28e68 100644
--- a/host/lib/utils/log_c.cpp
+++ b/host/lib/utils/log_c.cpp
@@ -1,18 +1,7 @@
 /*
  * Copyright 2017 Ettus Research (National Instruments Corp)
  *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: GPL-3.0
  */
 
 #include <uhd/utils/log.h>
diff --git a/host/lib/utils/paths.cpp b/host/lib/utils/paths.cpp
index 5d53f95bd..a03ce9cfa 100644
--- a/host/lib/utils/paths.cpp
+++ b/host/lib/utils/paths.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2010-2012,2015 Ettus Research LLC
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/config.hpp>
diff --git a/host/lib/utils/platform.cpp b/host/lib/utils/platform.cpp
index 30f3337ac..2c9ee0238 100644
--- a/host/lib/utils/platform.cpp
+++ b/host/lib/utils/platform.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2010-2012,2014 Ettus Research LLC
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/utils/platform.hpp>
diff --git a/host/lib/utils/static.cpp b/host/lib/utils/static.cpp
index a0dea3372..bc670e6d9 100644
--- a/host/lib/utils/static.cpp
+++ b/host/lib/utils/static.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2011 Ettus Research LLC
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/utils/static.hpp>
diff --git a/host/lib/utils/tasks.cpp b/host/lib/utils/tasks.cpp
index fb9a3052e..4941ab480 100644
--- a/host/lib/utils/tasks.cpp
+++ b/host/lib/utils/tasks.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2011,2014 Ettus Research LLC
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/utils/tasks.hpp>
diff --git a/host/lib/utils/thread.cpp b/host/lib/utils/thread.cpp
index 9100cfd7b..f06cdf498 100644
--- a/host/lib/utils/thread.cpp
+++ b/host/lib/utils/thread.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2010-2011,2015 Ettus Research LLC
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/utils/thread.hpp>
diff --git a/host/lib/utils/thread_priority_c.cpp b/host/lib/utils/thread_priority_c.cpp
index 822126d4a..7a91ad3f6 100644
--- a/host/lib/utils/thread_priority_c.cpp
+++ b/host/lib/utils/thread_priority_c.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2015 Ettus Research LLC
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/error.h>