drbd: move UAPI headers to include/uapi/linux/

drbd.h and drbd_limits.h contain only type definitions, enums, and
constants shared between kernel and userspace. These should be part of
UAPI.

Split the genl_api header into two: the genlmsghdr and the enums are
UAPI, the rest stays there for now (it will be removed by one of the
next commits in this series).

drbd_config.h is clearly DRBD-internal, so move it there.

Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>

Author: chrboe

drivers/block/drbd/drbd_buildtag.c

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-only
-#include <linux/drbd_config.h>
+#include "drbd_config.h"
 #include <linux/module.h>
 
 const char *drbd_buildtag(void)

include/linux/drbd_config.h drivers/block/drbd/drbd_config.hinclude/linux/drbd_config.h renamed to drivers/block/drbd/drbd_config.h

@@ -34,7 +34,7 @@
 #include <linux/prefetch.h>
 #include <linux/drbd_genl_api.h>
 #include <linux/drbd.h>
-#include <linux/drbd_config.h>
+#include "drbd_config.h"
 #include "drbd_strings.h"
 #include "drbd_state.h"
 #include "drbd_protocol.h"

drivers/block/drbd/drbd_int.h

@@ -2,46 +2,6 @@
 #ifndef DRBD_GENL_STRUCT_H
 #define DRBD_GENL_STRUCT_H
 
-/**
- * struct drbd_genlmsghdr - DRBD specific header used in NETLINK_GENERIC requests
- * @minor:
- *     For admin requests (user -> kernel): which minor device to operate on.
- *     For (unicast) replies or informational (broadcast) messages
- *     (kernel -> user): which minor device the information is about.
- *     If we do not operate on minors, but on connections or resources,
- *     the minor value shall be (~0), and the attribute DRBD_NLA_CFG_CONTEXT
- *     is used instead.
- * @flags: possible operation modifiers (relevant only for user->kernel):
- *     DRBD_GENL_F_SET_DEFAULTS
- * @volume:
- *     When creating a new minor (adding it to a resource), the resource needs
- *     to know which volume number within the resource this is supposed to be.
- *     The volume number corresponds to the same volume number on the remote side,
- *     whereas the minor number on the remote side may be different
- *     (union with flags).
- * @ret_code: kernel->userland unicast cfg reply return code (union with flags);
- */
-struct drbd_genlmsghdr {
-	__u32 minor;
-	union {
-	__u32 flags;
-	__s32 ret_code;
-	};
-};
-
-/* To be used in drbd_genlmsghdr.flags */
-enum {
-	DRBD_GENL_F_SET_DEFAULTS = 1,
-};
-
-enum drbd_state_info_bcast_reason {
-	SIB_GET_STATUS_REPLY = 1,
-	SIB_STATE_CHANGE = 2,
-	SIB_HELPER_PRE = 3,
-	SIB_HELPER_POST = 4,
-	SIB_SYNC_PROGRESS = 5,
-};
-
 /* hack around predefined gcc/cpp "linux=1",
  * we cannot possibly include <1/drbd_genl.h> */
 #undef linux

include/linux/drbd_genl_api.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* SPDX-License-Identifier: GPL-2.0-or-later WITH Linux-syscall-note */
 /*
   drbd.h
   Kernel module for 2.6.x Kernels
@@ -389,4 +389,44 @@ enum write_ordering_e {
 
 #define DRBD_CPU_MASK_SIZE 32
 
+/**
+ * struct drbd_genlmsghdr - DRBD specific header used in NETLINK_GENERIC requests
+ * @minor:
+ *     For admin requests (user -> kernel): which minor device to operate on.
+ *     For (unicast) replies or informational (broadcast) messages
+ *     (kernel -> user): which minor device the information is about.
+ *     If we do not operate on minors, but on connections or resources,
+ *     the minor value shall be (~0), and the attribute DRBD_NLA_CFG_CONTEXT
+ *     is used instead.
+ * @flags: possible operation modifiers (relevant only for user->kernel):
+ *     DRBD_GENL_F_SET_DEFAULTS
+ * @volume:
+ *     When creating a new minor (adding it to a resource), the resource needs
+ *     to know which volume number within the resource this is supposed to be.
+ *     The volume number corresponds to the same volume number on the remote side,
+ *     whereas the minor number on the remote side may be different
+ *     (union with flags).
+ * @ret_code: kernel->userland unicast cfg reply return code (union with flags);
+ */
+struct drbd_genlmsghdr {
+	__u32 minor;
+	union {
+		__u32 flags;
+		__s32 ret_code;
+	};
+};
+
+/* To be used in drbd_genlmsghdr.flags */
+enum {
+	DRBD_GENL_F_SET_DEFAULTS = 1,
+};
+
+enum drbd_state_info_bcast_reason {
+	SIB_GET_STATUS_REPLY = 1,
+	SIB_STATE_CHANGE = 2,
+	SIB_HELPER_PRE = 3,
+	SIB_HELPER_POST = 4,
+	SIB_SYNC_PROGRESS = 5,
+};
+
 #endif

include/linux/drbd.h include/uapi/linux/drbd.hinclude/linux/drbd.h renamed to include/uapi/linux/drbd.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
 /*
   drbd_limits.h
   This file is part of DRBD by Philipp Reisner and Lars Ellenberg.