From: Sven Eckelmann <sven@narfation.org>
To: b.a.t.m.a.n@lists.open-mesh.org
Cc: Sven Eckelmann <sven@narfation.org>
Subject: [PATCH v2] batman-adv: Drop support for Linux < 4.19
Date: Wed, 10 Jan 2024 22:14:37 +0100 [thread overview]
Message-ID: <20240110-drop-compat-4-14-v2-1-0581c371c90f@narfation.org> (raw)
The Linux Kernel 4.14 reached its end of life [1] after 6 years. Instead it
is recommended to use at least kernel 4.19. It is also over 5 years
old but still maintained by the stable kernel team. All older kernels
(4.14 - v4.18) will be dropped to reduce the support overhead.
[1] https://lore.kernel.org/r/2024011046-ecology-tiptoeing-ce50@gregkh/
Signed-off-by: Sven Eckelmann <sven@narfation.org>
---
Changes in v2:
- Add EOL announcement URL to commit message
- Fix conflict in README.external.rst
- Link to v1: https://lore.kernel.org/r/20231104-drop-compat-4-14-v1-1-d2453b1cfd45@narfation.org
---
README.external.rst | 2 +-
compat-include/linux/netdevice.h | 8 --------
compat-include/linux/stddef.h | 24 ------------------------
compat-include/net/cfg80211.h | 40 ----------------------------------------
compat-include/net/genetlink.h | 18 ------------------
compat.h | 7 -------
6 files changed, 1 insertion(+), 98 deletions(-)
diff --git a/README.external.rst b/README.external.rst
index 3b014af8..4e1de973 100644
--- a/README.external.rst
+++ b/README.external.rst
@@ -12,7 +12,7 @@ and as an external module. The external module allows to get
new features without upgrading to a newer kernel version
and to get batman-adv specific bug fixes for kernels that are
not supported anymore. It compiles against and should work
-with Linux 4.14 - 6.7. Supporting older versions is not
+with Linux 4.19 - 6.7. Supporting older versions is not
planned, but it's probably easy to backport it. If you work on a
backport, feel free to contact us. :-)
diff --git a/compat-include/linux/netdevice.h b/compat-include/linux/netdevice.h
index 3188ad3d..a489ac9b 100644
--- a/compat-include/linux/netdevice.h
+++ b/compat-include/linux/netdevice.h
@@ -13,14 +13,6 @@
#include <linux/version.h>
#include_next <linux/netdevice.h>
-#if LINUX_VERSION_IS_LESS(4, 15, 0)
-
-#define netdev_master_upper_dev_link(dev, upper_dev, upper_priv, upper_info, extack) \
- netdev_master_upper_dev_link(dev, upper_dev, upper_priv, upper_info)
-
-#endif /* LINUX_VERSION_IS_LESS(4, 15, 0) */
-
-
#if LINUX_VERSION_IS_LESS(5, 15, 0)
static inline void batadv_dev_put(struct net_device *dev)
diff --git a/compat-include/linux/stddef.h b/compat-include/linux/stddef.h
deleted file mode 100644
index c4558f81..00000000
--- a/compat-include/linux/stddef.h
+++ /dev/null
@@ -1,24 +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_STDDEF_H_
-#define _NET_BATMAN_ADV_COMPAT_LINUX_STDDEF_H_
-
-#include <linux/version.h>
-#include_next <linux/stddef.h>
-
-#if LINUX_VERSION_IS_LESS(4, 16, 0)
-
-#ifndef sizeof_field
-#define sizeof_field(TYPE, MEMBER) sizeof((((TYPE *)0)->MEMBER))
-#endif
-
-#endif /* LINUX_VERSION_IS_LESS(4, 16, 0) */
-
-#endif /* _NET_BATMAN_ADV_COMPAT_LINUX_STDDEF_H_ */
diff --git a/compat-include/net/cfg80211.h b/compat-include/net/cfg80211.h
deleted file mode 100644
index 4bfcd5a3..00000000
--- a/compat-include/net/cfg80211.h
+++ /dev/null
@@ -1,40 +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_NET_CFG80211_H_
-#define _NET_BATMAN_ADV_COMPAT_NET_CFG80211_H_
-
-#include <linux/version.h>
-#include_next <net/cfg80211.h>
-
-
-#if LINUX_VERSION_IS_LESS(4, 18, 0) && IS_ENABLED(CONFIG_CFG80211)
-
-/* cfg80211 fix: https://patchwork.kernel.org/patch/10449857/ */
-static inline int batadv_cfg80211_get_station(struct net_device *dev,
- const u8 *mac_addr,
- struct station_info *sinfo)
-{
- memset(sinfo, 0, sizeof(*sinfo));
- return cfg80211_get_station(dev, mac_addr, sinfo);
-}
-
-#define cfg80211_get_station(dev, mac_addr, sinfo) \
- batadv_cfg80211_get_station(dev, mac_addr, sinfo)
-
-#endif /* LINUX_VERSION_IS_LESS(4, 18, 0) && IS_ENABLED(CONFIG_CFG80211) */
-
-
-#if LINUX_VERSION_IS_LESS(4, 18, 0)
-
-#define cfg80211_sinfo_release_content(sinfo)
-
-#endif /* LINUX_VERSION_IS_LESS(4, 18, 0) */
-
-#endif /* _NET_BATMAN_ADV_COMPAT_NET_CFG80211_H_ */
diff --git a/compat-include/net/genetlink.h b/compat-include/net/genetlink.h
index 05c57ce0..85376044 100644
--- a/compat-include/net/genetlink.h
+++ b/compat-include/net/genetlink.h
@@ -13,24 +13,6 @@
#include <linux/version.h>
#include_next <net/genetlink.h>
-#if LINUX_VERSION_IS_LESS(4, 15, 0)
-
-static inline
-void batadv_genl_dump_check_consistent(struct netlink_callback *cb,
- void *user_hdr)
-{
- struct genl_family genl_family = {
- .hdrsize = 0,
- };
-
- genl_dump_check_consistent(cb, user_hdr, &genl_family);
-}
-
-#define genl_dump_check_consistent batadv_genl_dump_check_consistent
-
-#endif /* LINUX_VERSION_IS_LESS(4, 15, 0) */
-
-
#if LINUX_VERSION_IS_LESS(5, 10, 0)
#if LINUX_VERSION_IS_LESS(5, 2, 0)
diff --git a/compat.h b/compat.h
index 8e19f9bb..638bfc54 100644
--- a/compat.h
+++ b/compat.h
@@ -16,13 +16,6 @@
#include "compat-autoconf.h"
-#if LINUX_VERSION_IS_LESS(4, 15, 0)
-
-#define batadv_softif_slave_add(__dev, __slave_dev, __extack) \
- batadv_softif_slave_add(__dev, __slave_dev)
-
-#endif /* LINUX_VERSION_IS_LESS(4, 15, 0) */
-
#endif /* __KERNEL__ */
#endif /* _NET_BATMAN_ADV_COMPAT_H_ */
---
base-commit: e6fbde1250b73c3c9f49fc5a22ad9a8b10f864d5
change-id: 20231104-drop-compat-4-14-1bba04bac963
Best regards,
--
Sven Eckelmann <sven@narfation.org>
reply other threads:[~2024-01-10 21:14 UTC|newest]
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