From e8d322e2167f7dc337e41ab53b02ab4e09925c35 Mon Sep 17 00:00:00 2001
From: Sven Eckelmann <sven@narfation.org>
Date: Sat, 20 Dec 2025 18:34:33 +0100
Subject: [PATCH] batman-adv: drop support for kernels < 6.12

OpenWrt only supports Linux 6.12 at the moment. It is no longer necessary
to support older versions of the kernel.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
---
 batman-adv/Makefile                           |  2 +-
 ...man-adv-Switch-to-linux-array_size.h.patch | 72 -------------------
 ...v-move-asm-unaligned.h-to-linux-unal.patch | 49 -------------
 batman-adv/src/compat-hacks.h                 |  6 --
 4 files changed, 1 insertion(+), 128 deletions(-)
 delete mode 100644 batman-adv/patches/0002-Revert-batman-adv-Switch-to-linux-array_size.h.patch
 delete mode 100644 batman-adv/patches/0003-Revert-batman-adv-move-asm-unaligned.h-to-linux-unal.patch

diff --git a/batman-adv/Makefile b/batman-adv/Makefile
index c61ed09..7a8d1d7 100644
--- a/batman-adv/Makefile
+++ b/batman-adv/Makefile
@@ -4,7 +4,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=batman-adv
 PKG_VERSION:=2025.5
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://downloads.open-mesh.org/batman/releases/batman-adv-$(PKG_VERSION)
diff --git a/batman-adv/patches/0002-Revert-batman-adv-Switch-to-linux-array_size.h.patch b/batman-adv/patches/0002-Revert-batman-adv-Switch-to-linux-array_size.h.patch
deleted file mode 100644
index acf6827..0000000
--- a/batman-adv/patches/0002-Revert-batman-adv-Switch-to-linux-array_size.h.patch
+++ /dev/null
@@ -1,72 +0,0 @@
-From: Sven Eckelmann <sven@narfation.org>
-Date: Fri, 2 Feb 2024 22:49:48 +0100
-Subject: Revert "batman-adv: Switch to linux/array_size.h"
-
-The original patch requires Linux 6.7.0 or a mac80211 compat header with this
-name. But the mac80211 package is currently not providing this header and
-OpenWrt main is still using older Linux kernel versions for some targets.
-
-This reverts commit f33d7f724675544a36b24c77f8d4b95d41252ae2.
-
---- a/compat-include/linux/array_size.h
-+++ /dev/null
-@@ -1,23 +0,0 @@
--/* SPDX-License-Identifier: GPL-2.0 */
--/* Copyright (C) B.A.T.M.A.N. contributors:
-- *
-- * Marek Lindner, Simon Wunderlich
-- *
-- * This file contains macros for maintaining compatibility with older versions
-- * of the Linux kernel.
-- */
--
--#ifndef _NET_BATMAN_ADV_COMPAT_LINUX_ARRAY_SIZE_H_
--#define _NET_BATMAN_ADV_COMPAT_LINUX_ARRAY_SIZE_H_
--
--#include <linux/version.h>
--#if (LINUX_VERSION_IS_GEQ(5, 15, 197) && LINUX_VERSION_IS_LESS(5, 16, 0)) || \
--    (LINUX_VERSION_IS_GEQ(6, 1, 159) && LINUX_VERSION_IS_LESS(6, 2, 0)) || \
--    (LINUX_VERSION_IS_GEQ(6, 6, 118) && LINUX_VERSION_IS_LESS(6, 7, 0)) || \
--    LINUX_VERSION_IS_GEQ(6, 7, 0)
--#include_next <linux/array_size.h>
--#else
--#include <linux/kernel.h>
--#endif
--
--#endif /* _NET_BATMAN_ADV_COMPAT_LINUX_ARRAY_SIZE_H_ */
---- a/net/batman-adv/main.c
-+++ b/net/batman-adv/main.c
-@@ -6,7 +6,6 @@
- 
- #include "main.h"
- 
--#include <linux/array_size.h>
- #include <linux/atomic.h>
- #include <linux/build_bug.h>
- #include <linux/byteorder/generic.h>
-@@ -19,6 +18,7 @@
- #include <linux/init.h>
- #include <linux/ip.h>
- #include <linux/ipv6.h>
-+#include <linux/kernel.h>
- #include <linux/kobject.h>
- #include <linux/kref.h>
- #include <linux/list.h>
---- a/net/batman-adv/netlink.c
-+++ b/net/batman-adv/netlink.c
-@@ -7,7 +7,6 @@
- #include "netlink.h"
- #include "main.h"
- 
--#include <linux/array_size.h>
- #include <linux/atomic.h>
- #include <linux/bitops.h>
- #include <linux/bug.h>
-@@ -19,6 +18,7 @@
- #include <linux/if_ether.h>
- #include <linux/if_vlan.h>
- #include <linux/init.h>
-+#include <linux/kernel.h>
- #include <linux/limits.h>
- #include <linux/minmax.h>
- #include <linux/netdevice.h>
diff --git a/batman-adv/patches/0003-Revert-batman-adv-move-asm-unaligned.h-to-linux-unal.patch b/batman-adv/patches/0003-Revert-batman-adv-move-asm-unaligned.h-to-linux-unal.patch
deleted file mode 100644
index 1c500c7..0000000
--- a/batman-adv/patches/0003-Revert-batman-adv-move-asm-unaligned.h-to-linux-unal.patch
+++ /dev/null
@@ -1,49 +0,0 @@
-From: Sven Eckelmann <sven@narfation.org>
-Date: Tue, 10 Dec 2024 22:31:33 +0100
-Subject: Revert "batman-adv: move asm/unaligned.h to linux/unaligned.h"
-
-This header is only available with Linux 6.12
-
-This reverts commit ee60832ebec47a023d634b06f9434103ec090aed.
-
---- a/compat-include/linux/unaligned.h
-+++ /dev/null
-@@ -1,20 +0,0 @@
--/* SPDX-License-Identifier: GPL-2.0 */
--/* Copyright (C) B.A.T.M.A.N. contributors:
-- *
-- * Marek Lindner, Simon Wunderlich
-- *
-- * This file contains macros for maintaining compatibility with older versions
-- * of the Linux kernel.
-- */
--
--#ifndef _NET_BATMAN_ADV_COMPAT_LINUX_UNALIGNED_H_
--#define _NET_BATMAN_ADV_COMPAT_LINUX_UNALIGNED_H_
--
--#include <linux/version.h>
--#if LINUX_VERSION_IS_GEQ(6, 12, 0)
--#include_next <linux/unaligned.h>
--#else
--#include <asm/unaligned.h>
--#endif
--
--#endif /* _NET_BATMAN_ADV_COMPAT_LINUX_UNALIGNED_H_ */
---- a/net/batman-adv/distributed-arp-table.c
-+++ b/net/batman-adv/distributed-arp-table.c
-@@ -7,6 +7,7 @@
- #include "distributed-arp-table.h"
- #include "main.h"
- 
-+#include <asm/unaligned.h>
- #include <linux/atomic.h>
- #include <linux/bitops.h>
- #include <linux/byteorder/generic.h>
-@@ -32,7 +33,6 @@
- #include <linux/stddef.h>
- #include <linux/string.h>
- #include <linux/udp.h>
--#include <linux/unaligned.h>
- #include <linux/workqueue.h>
- #include <net/arp.h>
- #include <net/genetlink.h>
diff --git a/batman-adv/src/compat-hacks.h b/batman-adv/src/compat-hacks.h
index 3df7042..7b6b116 100644
--- a/batman-adv/src/compat-hacks.h
+++ b/batman-adv/src/compat-hacks.h
@@ -5,12 +5,6 @@
 #include <linux/version.h>	/* LINUX_VERSION_CODE */
 #include <linux/types.h>
 
-#if LINUX_VERSION_IS_LESS(6, 10, 0)
-
-#define __counted_by_be(member)
-
-#endif /* LINUX_VERSION_IS_LESS(6, 10, 0) */
-
 #if LINUX_VERSION_IS_LESS(6, 15, 0)
 #include <linux/crc32c.h>
 #endif /* LINUX_VERSION_IS_LESS(6, 15, 0) */
-- 
2.30.2