License cleanup: add SPDX license identifier to uapi header files with no license

Many user space API headers are missing licensing information, which
makes it hard for compliance tools to determine the correct license.

By default are files without license information under the default
license of the kernel, which is GPLV2.  Marking them GPLV2 would exclude
them from being included in non GPLV2 code, which is obviously not
intended. The user space API headers fall under the syscall exception
which is in the kernels COPYING file:

   NOTE! This copyright does *not* cover user programs that use kernel
   services by normal system calls - this is merely considered normal use
   of the kernel, and does *not* fall under the heading of "derived work".

otherwise syscall usage would not be possible.

Update the files which contain no license information with an SPDX
license identifier.  The chosen identifier is 'GPL-2.0 WITH
Linux-syscall-note' which is the officially assigned identifier for the
Linux syscall exception.  SPDX license identifiers are a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.  See the previous patch in this series for the
methodology of how this patch was researched.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

10 files changed, 10 insertions, 0 deletions

diff --git a/include/uapi/linux/tc_act/tc_connmark.h b/include/uapi/linux/tc_act/tc_connmark.h
index 62a5e944c554..80caa47b1933 100644
--- a/include/uapi/linux/tc_act/tc_connmark.h
+++ b/include/uapi/linux/tc_act/tc_connmark.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __UAPI_TC_CONNMARK_H
 #define __UAPI_TC_CONNMARK_H
 
diff --git a/include/uapi/linux/tc_act/tc_csum.h b/include/uapi/linux/tc_act/tc_csum.h
index a11bb355dbfb..0ecf4d29e2f3 100644
--- a/include/uapi/linux/tc_act/tc_csum.h
+++ b/include/uapi/linux/tc_act/tc_csum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_CSUM_H
 #define __LINUX_TC_CSUM_H
 
diff --git a/include/uapi/linux/tc_act/tc_defact.h b/include/uapi/linux/tc_act/tc_defact.h
index d2a3abb77aeb..e3ecd8bf37de 100644
--- a/include/uapi/linux/tc_act/tc_defact.h
+++ b/include/uapi/linux/tc_act/tc_defact.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_DEF_H
 #define __LINUX_TC_DEF_H
 
diff --git a/include/uapi/linux/tc_act/tc_gact.h b/include/uapi/linux/tc_act/tc_gact.h
index 70b536a8f8b2..94273c3b81b0 100644
--- a/include/uapi/linux/tc_act/tc_gact.h
+++ b/include/uapi/linux/tc_act/tc_gact.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_GACT_H
 #define __LINUX_TC_GACT_H
 
diff --git a/include/uapi/linux/tc_act/tc_ife.h b/include/uapi/linux/tc_act/tc_ife.h
index 7c2817866c97..2f48490ef386 100644
--- a/include/uapi/linux/tc_act/tc_ife.h
+++ b/include/uapi/linux/tc_act/tc_ife.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __UAPI_TC_IFE_H
 #define __UAPI_TC_IFE_H
 
diff --git a/include/uapi/linux/tc_act/tc_ipt.h b/include/uapi/linux/tc_act/tc_ipt.h
index 7c6e155dd981..b743c8bddd13 100644
--- a/include/uapi/linux/tc_act/tc_ipt.h
+++ b/include/uapi/linux/tc_act/tc_ipt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_IPT_H
 #define __LINUX_TC_IPT_H
 
diff --git a/include/uapi/linux/tc_act/tc_mirred.h b/include/uapi/linux/tc_act/tc_mirred.h
index 3d7a2b352a62..020696e07345 100644
--- a/include/uapi/linux/tc_act/tc_mirred.h
+++ b/include/uapi/linux/tc_act/tc_mirred.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_MIR_H
 #define __LINUX_TC_MIR_H
 
diff --git a/include/uapi/linux/tc_act/tc_nat.h b/include/uapi/linux/tc_act/tc_nat.h
index 923457c9ebf0..086be842587b 100644
--- a/include/uapi/linux/tc_act/tc_nat.h
+++ b/include/uapi/linux/tc_act/tc_nat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_NAT_H
 #define __LINUX_TC_NAT_H
 
diff --git a/include/uapi/linux/tc_act/tc_pedit.h b/include/uapi/linux/tc_act/tc_pedit.h
index 143d2b31a316..162d1094c41c 100644
--- a/include/uapi/linux/tc_act/tc_pedit.h
+++ b/include/uapi/linux/tc_act/tc_pedit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_PED_H
 #define __LINUX_TC_PED_H
 
diff --git a/include/uapi/linux/tc_act/tc_sample.h b/include/uapi/linux/tc_act/tc_sample.h
index edc9058bb30d..bd7e9f03abd2 100644
--- a/include/uapi/linux/tc_act/tc_sample.h
+++ b/include/uapi/linux/tc_act/tc_sample.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_SAMPLE_H
 #define __LINUX_TC_SAMPLE_H