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>

19 files changed, 19 insertions, 0 deletions

diff --git a/arch/sh/include/uapi/asm/auxvec.h b/arch/sh/include/uapi/asm/auxvec.h
index 8bcc51af9367..8eb47ede7193 100644
--- a/arch/sh/include/uapi/asm/auxvec.h
+++ b/arch/sh/include/uapi/asm/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_AUXVEC_H
 #define __ASM_SH_AUXVEC_H
 
diff --git a/arch/sh/include/uapi/asm/byteorder.h b/arch/sh/include/uapi/asm/byteorder.h
index db2f5d7cb17d..e27d6da3212c 100644
--- a/arch/sh/include/uapi/asm/byteorder.h
+++ b/arch/sh/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_BYTEORDER_H
 #define __ASM_SH_BYTEORDER_H
 
diff --git a/arch/sh/include/uapi/asm/cachectl.h b/arch/sh/include/uapi/asm/cachectl.h
index 6ffb4b7a212e..79c5663251a5 100644
--- a/arch/sh/include/uapi/asm/cachectl.h
+++ b/arch/sh/include/uapi/asm/cachectl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SH_CACHECTL_H
 #define _SH_CACHECTL_H
 
diff --git a/arch/sh/include/uapi/asm/cpu-features.h b/arch/sh/include/uapi/asm/cpu-features.h
index 2f1bc851042a..6de5f65194e6 100644
--- a/arch/sh/include/uapi/asm/cpu-features.h
+++ b/arch/sh/include/uapi/asm/cpu-features.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_CPU_FEATURES_H
 #define __ASM_SH_CPU_FEATURES_H
 
diff --git a/arch/sh/include/uapi/asm/hw_breakpoint.h b/arch/sh/include/uapi/asm/hw_breakpoint.h
index ae5704fa77ad..043dd4b92026 100644
--- a/arch/sh/include/uapi/asm/hw_breakpoint.h
+++ b/arch/sh/include/uapi/asm/hw_breakpoint.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * There isn't anything here anymore, but the file must not be empty or patch
  * will delete it.
diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h
index 787bac9f67da..cc62f6f98103 100644
--- a/arch/sh/include/uapi/asm/ioctls.h
+++ b/arch/sh/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_IOCTLS_H
 #define __ASM_SH_IOCTLS_H
 
diff --git a/arch/sh/include/uapi/asm/posix_types.h b/arch/sh/include/uapi/asm/posix_types.h
index dc55e5adfe1e..2644fdd444e6 100644
--- a/arch/sh/include/uapi/asm/posix_types.h
+++ b/arch/sh/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __KERNEL__
 # ifdef __SH5__
 #  include <asm/posix_types_64.h>
diff --git a/arch/sh/include/uapi/asm/posix_types_32.h b/arch/sh/include/uapi/asm/posix_types_32.h
index ba0bdc423b07..ea0f51d1ac55 100644
--- a/arch/sh/include/uapi/asm/posix_types_32.h
+++ b/arch/sh/include/uapi/asm/posix_types_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_POSIX_TYPES_32_H
 #define __ASM_SH_POSIX_TYPES_32_H
 
diff --git a/arch/sh/include/uapi/asm/posix_types_64.h b/arch/sh/include/uapi/asm/posix_types_64.h
index 244f7e950e17..3a9128d4aee3 100644
--- a/arch/sh/include/uapi/asm/posix_types_64.h
+++ b/arch/sh/include/uapi/asm/posix_types_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_POSIX_TYPES_64_H
 #define __ASM_SH_POSIX_TYPES_64_H
 
diff --git a/arch/sh/include/uapi/asm/ptrace.h b/arch/sh/include/uapi/asm/ptrace.h
index 8b8c5aca9c28..4ec9c2b65fdb 100644
--- a/arch/sh/include/uapi/asm/ptrace.h
+++ b/arch/sh/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 1999, 2000  Niibe Yutaka
  */
diff --git a/arch/sh/include/uapi/asm/ptrace_32.h b/arch/sh/include/uapi/asm/ptrace_32.h
index 926e0cefc2bb..dc8a26015018 100644
--- a/arch/sh/include/uapi/asm/ptrace_32.h
+++ b/arch/sh/include/uapi/asm/ptrace_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ASM_SH_PTRACE_32_H
 #define _UAPI__ASM_SH_PTRACE_32_H
 
diff --git a/arch/sh/include/uapi/asm/ptrace_64.h b/arch/sh/include/uapi/asm/ptrace_64.h
index 0e52ee83e946..a6f84eba5277 100644
--- a/arch/sh/include/uapi/asm/ptrace_64.h
+++ b/arch/sh/include/uapi/asm/ptrace_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ASM_SH_PTRACE_64_H
 #define _UAPI__ASM_SH_PTRACE_64_H
 
diff --git a/arch/sh/include/uapi/asm/sigcontext.h b/arch/sh/include/uapi/asm/sigcontext.h
index faa5d0833412..d2b7e4f033c0 100644
--- a/arch/sh/include/uapi/asm/sigcontext.h
+++ b/arch/sh/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_SIGCONTEXT_H
 #define __ASM_SH_SIGCONTEXT_H
 
diff --git a/arch/sh/include/uapi/asm/signal.h b/arch/sh/include/uapi/asm/signal.h
index cb96d02f55a4..97299daddef5 100644
--- a/arch/sh/include/uapi/asm/signal.h
+++ b/arch/sh/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_SIGNAL_H
 #define __ASM_SH_SIGNAL_H
 
diff --git a/arch/sh/include/uapi/asm/sockios.h b/arch/sh/include/uapi/asm/sockios.h
index cf8b96b1f9ab..17313d2c3527 100644
--- a/arch/sh/include/uapi/asm/sockios.h
+++ b/arch/sh/include/uapi/asm/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_SOCKIOS_H
 #define __ASM_SH_SOCKIOS_H
 
diff --git a/arch/sh/include/uapi/asm/stat.h b/arch/sh/include/uapi/asm/stat.h
index e1810cc6e3da..659b87c7c25a 100644
--- a/arch/sh/include/uapi/asm/stat.h
+++ b/arch/sh/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_STAT_H
 #define __ASM_SH_STAT_H
 
diff --git a/arch/sh/include/uapi/asm/swab.h b/arch/sh/include/uapi/asm/swab.h
index 1cd09767a7a3..f0b02152745c 100644
--- a/arch/sh/include/uapi/asm/swab.h
+++ b/arch/sh/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_SWAB_H
 #define __ASM_SH_SWAB_H
 
diff --git a/arch/sh/include/uapi/asm/unistd.h b/arch/sh/include/uapi/asm/unistd.h
index eeef88dd53ce..9e0b4e5e6da2 100644
--- a/arch/sh/include/uapi/asm/unistd.h
+++ b/arch/sh/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __KERNEL__
 # ifdef __SH5__
 #  include <asm/unistd_64.h>
diff --git a/arch/sh/include/uapi/asm/unistd_32.h b/arch/sh/include/uapi/asm/unistd_32.h
index c801bde9e6f5..58f04cf3d1d9 100644
--- a/arch/sh/include/uapi/asm/unistd_32.h
+++ b/arch/sh/include/uapi/asm/unistd_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_UNISTD_32_H
 #define __ASM_SH_UNISTD_32_H