virtio: clarify that ABI is usable by any implementations
We want others to implement and use virtio, so it makes sense to BSD
license the non-__KERNEL__ parts of the headers to make this crystal
clear.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Mark McLoughlin <markmc@redhat.com>
Acked-by: Ryan Harper <ryanh@us.ibm.com>
Acked-by: Eric Van Hensbergen <ericvh@gmail.com>
Acked-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/include/linux/virtio_9p.h b/include/linux/virtio_9p.h
index 8eff0b5..b3c4a60 100644
--- a/include/linux/virtio_9p.h
+++ b/include/linux/virtio_9p.h
@@ -1,5 +1,7 @@
#ifndef _LINUX_VIRTIO_9P_H
#define _LINUX_VIRTIO_9P_H
+/* This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers. */
#include <linux/virtio_config.h>
/* The ID for virtio console */
diff --git a/include/linux/virtio_balloon.h b/include/linux/virtio_balloon.h
index 979524e..c30c7bf 100644
--- a/include/linux/virtio_balloon.h
+++ b/include/linux/virtio_balloon.h
@@ -1,5 +1,7 @@
#ifndef _LINUX_VIRTIO_BALLOON_H
#define _LINUX_VIRTIO_BALLOON_H
+/* This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers. */
#include <linux/virtio_config.h>
/* The ID for virtio_balloon */
diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
index 5f79a5f..6a66c7f 100644
--- a/include/linux/virtio_blk.h
+++ b/include/linux/virtio_blk.h
@@ -1,5 +1,7 @@
#ifndef _LINUX_VIRTIO_BLK_H
#define _LINUX_VIRTIO_BLK_H
+/* This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers. */
#include <linux/virtio_config.h>
/* The ID for virtio_block */
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index f364bbf..7eb4b34 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -1,5 +1,8 @@
#ifndef _LINUX_VIRTIO_CONFIG_H
#define _LINUX_VIRTIO_CONFIG_H
+/* This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
+ * anyone can use the definitions to implement compatible drivers/servers. */
+
/* Virtio devices use a standardized configuration space to define their
* features and pass configuration information, but each implementation can
* store and access that space differently. */
diff --git a/include/linux/virtio_console.h b/include/linux/virtio_console.h
index ed2d4ea..19a0da0 100644
--- a/include/linux/virtio_console.h
+++ b/include/linux/virtio_console.h
@@ -1,6 +1,8 @@
#ifndef _LINUX_VIRTIO_CONSOLE_H
#define _LINUX_VIRTIO_CONSOLE_H
#include <linux/virtio_config.h>
+/* This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
+ * anyone can use the definitions to implement compatible drivers/servers. */
/* The ID for virtio console */
#define VIRTIO_ID_CONSOLE 3
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 38c0571..5e33761 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -1,5 +1,7 @@
#ifndef _LINUX_VIRTIO_NET_H
#define _LINUX_VIRTIO_NET_H
+/* This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers. */
#include <linux/virtio_config.h>
/* The ID for virtio_net */
diff --git a/include/linux/virtio_pci.h b/include/linux/virtio_pci.h
index b315165..cdef357 100644
--- a/include/linux/virtio_pci.h
+++ b/include/linux/virtio_pci.h
@@ -9,9 +9,8 @@
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
*
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
+ * This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers.
*/
#ifndef _LINUX_VIRTIO_PCI_H
diff --git a/include/linux/virtio_rng.h b/include/linux/virtio_rng.h
index 331afb6..1a85dab 100644
--- a/include/linux/virtio_rng.h
+++ b/include/linux/virtio_rng.h
@@ -1,5 +1,7 @@
#ifndef _LINUX_VIRTIO_RNG_H
#define _LINUX_VIRTIO_RNG_H
+/* This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers. */
#include <linux/virtio_config.h>
/* The ID for virtio_rng */
