+++ /dev/null
-/* Please avoid adding hacks here - instead add it to mac80211/backports.git */
-
-#undef CONFIG_MODULE_STRIPPED
-
-#include <linux/version.h> /* LINUX_VERSION_CODE */
-#include <linux/types.h>
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 1, 0)
-
-#define dev_get_iflink(_net_dev) ((_net_dev)->iflink)
-
-#endif /* < KERNEL_VERSION(4, 1, 0) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)
-
-#include <linux/netdevice.h>
-
-#define netdev_master_upper_dev_link(dev, upper_dev, upper_priv, upper_info, extack) ({\
- BUILD_BUG_ON(upper_priv != NULL); \
- BUILD_BUG_ON(upper_info != NULL); \
- BUILD_BUG_ON(extack != NULL); \
- netdev_master_upper_dev_link(dev, upper_dev); \
-})
-
-#elif LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
-
-#include <linux/netdevice.h>
-
-#define netdev_master_upper_dev_link(dev, upper_dev, upper_priv, upper_info, extack) ({\
- BUILD_BUG_ON(extack != NULL); \
- netdev_master_upper_dev_link(dev, upper_dev, upper_priv, upper_info); \
-})
-
-#endif /* < KERNEL_VERSION(4, 5, 0) */
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)
-
-/* for batadv_v_elp_get_throughput which would have used
- * STATION_INFO_EXPECTED_THROUGHPUT in Linux 4.0.0
- */
-#define NL80211_STA_INFO_EXPECTED_THROUGHPUT 28
-
-/* wild hack for batadv_getlink_net only */
-#define get_link_net get_xstats_size || 1 ? fallback_net : (struct net*)netdev->rtnl_link_ops->get_xstats_size
-
-#endif /* < KERNEL_VERSION(4, 0, 0) */
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 2, 0)
-
-struct sk_buff *skb_checksum_trimmed(struct sk_buff *skb,
- unsigned int transport_len,
- __sum16(*skb_chkf)(struct sk_buff *skb));
-
-int ip_mc_check_igmp(struct sk_buff *skb, struct sk_buff **skb_trimmed);
-
-int ipv6_mc_check_mld(struct sk_buff *skb, struct sk_buff **skb_trimmed);
-
-#endif /* < KERNEL_VERSION(4, 2, 0) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0)
-
-#define IFF_NO_QUEUE 0; dev->tx_queue_len = 0
-
-static inline bool hlist_fake(struct hlist_node *h)
-{
- return h->pprev == &h->next;
-}
-
-#endif /* < KERNEL_VERSION(4, 3, 0) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0)
-
-#include <linux/ethtool.h>
-
-#define ethtool_link_ksettings batadv_ethtool_link_ksettings
-
-struct batadv_ethtool_link_ksettings {
- struct {
- __u32 speed;
- __u8 duplex;
- __u8 autoneg;
- } base;
-};
-
-#define __ethtool_get_link_ksettings(__dev, __link_settings) \
- batadv_ethtool_get_link_ksettings(__dev, __link_settings)
-
-static inline int
-batadv_ethtool_get_link_ksettings(struct net_device *dev,
- struct ethtool_link_ksettings *link_ksettings)
-{
- struct ethtool_cmd cmd;
- int ret;
-
- memset(&cmd, 0, sizeof(cmd));
- ret = __ethtool_get_settings(dev, &cmd);
-
- if (ret != 0)
- return ret;
-
- link_ksettings->base.duplex = cmd.duplex;
- link_ksettings->base.speed = ethtool_cmd_speed(&cmd);
- link_ksettings->base.autoneg = cmd.autoneg;
-
- return 0;
-}
-
-#endif /* < KERNEL_VERSION(4, 6, 0) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0)
-
-#ifdef netif_trans_update
-#undef netif_trans_update
-#endif
-
-#define netif_trans_update batadv_netif_trans_update
-static inline void batadv_netif_trans_update(struct net_device *dev)
-{
- dev->trans_start = jiffies;
-}
-
-#endif /* < KERNEL_VERSION(4, 7, 0) */
-
-
-#include_next <linux/netlink.h>
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0)
-
-#include_next <net/netlink.h>
-
-static inline bool batadv_nla_need_padding_for_64bit(struct sk_buff *skb);
-
-static inline int batadv_nla_align_64bit(struct sk_buff *skb, int padattr)
-{
- if (batadv_nla_need_padding_for_64bit(skb) &&
- !nla_reserve(skb, padattr, 0))
- return -EMSGSIZE;
-
- return 0;
-}
-
-static inline struct nlattr *batadv__nla_reserve_64bit(struct sk_buff *skb,
- int attrtype,
- int attrlen, int padattr)
-{
- if (batadv_nla_need_padding_for_64bit(skb))
- batadv_nla_align_64bit(skb, padattr);
-
- return __nla_reserve(skb, attrtype, attrlen);
-}
-
-static inline void batadv__nla_put_64bit(struct sk_buff *skb, int attrtype,
- int attrlen, const void *data,
- int padattr)
-{
- struct nlattr *nla;
-
- nla = batadv__nla_reserve_64bit(skb, attrtype, attrlen, padattr);
- memcpy(nla_data(nla), data, attrlen);
-}
-
-static inline bool batadv_nla_need_padding_for_64bit(struct sk_buff *skb)
-{
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
- /* The nlattr header is 4 bytes in size, that's why we test
- * if the skb->data _is_ aligned. A NOP attribute, plus
- * nlattr header for next attribute, will make nla_data()
- * 8-byte aligned.
- */
- if (IS_ALIGNED((unsigned long)skb_tail_pointer(skb), 8))
- return true;
-#endif
- return false;
-}
-
-static inline int batadv_nla_total_size_64bit(int payload)
-{
- return NLA_ALIGN(nla_attr_size(payload))
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
- + NLA_ALIGN(nla_attr_size(0))
-#endif
- ;
-}
-
-static inline int batadv_nla_put_64bit(struct sk_buff *skb, int attrtype,
- int attrlen, const void *data,
- int padattr)
-{
- size_t len;
-
- if (batadv_nla_need_padding_for_64bit(skb))
- len = batadv_nla_total_size_64bit(attrlen);
- else
- len = nla_total_size(attrlen);
- if (unlikely(skb_tailroom(skb) < len))
- return -EMSGSIZE;
-
- batadv__nla_put_64bit(skb, attrtype, attrlen, data, padattr);
- return 0;
-}
-
-#ifdef nla_put_u64_64bit
-#undef nla_put_u64_64bit
-#endif
-
-#define nla_put_u64_64bit(_skb, _attrtype, _value, _padattr) \
- batadv_nla_put_u64_64bit(_skb, _attrtype, _value, _padattr)
-static inline int batadv_nla_put_u64_64bit(struct sk_buff *skb, int attrtype,
- u64 value, int padattr)
-{
- return batadv_nla_put_64bit(skb, attrtype, sizeof(u64), &value,
- padattr);
-}
-
-#endif /* < KERNEL_VERSION(4, 7, 0) */
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
-
-#include_next <linux/cache.h>
-
-/* hack for netlink.c which marked the family ops as ro */
-#ifdef __ro_after_init
-#undef __ro_after_init
-#endif
-#define __ro_after_init
-
-#endif /* < KERNEL_VERSION(4, 10, 0) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 11, 9)
-
-#include <linux/netdevice.h>
-
-/* work around missing attribute needs_free_netdev and priv_destructor in
- * net_device
- */
-#define ether_setup(dev) \
- void batadv_softif_free2(struct net_device *dev) \
- { \
- batadv_softif_free(dev); \
- free_netdev(dev); \
- } \
- void (*t1)(struct net_device *dev) __attribute__((unused)); \
- bool t2 __attribute__((unused)); \
- ether_setup(dev)
-#define needs_free_netdev destructor = batadv_softif_free2; t2
-#define priv_destructor destructor = batadv_softif_free2; t1
-
-#endif /* < KERNEL_VERSION(4, 11, 9) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 13, 0)
-
-static inline void *batadv_skb_put(struct sk_buff *skb, unsigned int len)
-{
- return (void *)skb_put(skb, len);
-}
-#ifdef skb_put
-#undef skb_put
-#endif
-
-#define skb_put batadv_skb_put
-
-static inline void *batadv_skb_put_zero(struct sk_buff *skb, unsigned int len)
-{
- void *tmp = skb_put(skb, len);
-
- memset(tmp, 0, len);
-
- return tmp;
-}
-#ifdef skb_put_zero
-#undef skb_put_zero
-#endif
-
-#define skb_put_zero batadv_skb_put_zero
-
-static inline void *batadv_skb_put_data(struct sk_buff *skb, const void *data,
- unsigned int len)
-{
- void *tmp = skb_put(skb, len);
-
- memcpy(tmp, data, len);
-
- return tmp;
-}
-#ifdef skb_put_data
-#undef skb_put_data
-#endif
-
-#define skb_put_data batadv_skb_put_data
-
-#endif /* < KERNEL_VERSION(4, 13, 0) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
-
-#define batadv_softif_slave_add(__dev, __slave_dev, __extack) \
- batadv_softif_slave_add(__dev, __slave_dev)
-
-#endif /* < KERNEL_VERSION(4, 15, 0) */
-
-#ifndef from_timer
-
-#define TIMER_DATA_TYPE unsigned long
-#define TIMER_FUNC_TYPE void (*)(TIMER_DATA_TYPE)
-
-static inline void timer_setup(struct timer_list *timer,
- void (*callback)(struct timer_list *),
- unsigned int flags)
-{
- __setup_timer(timer, (TIMER_FUNC_TYPE)callback,
- (TIMER_DATA_TYPE)timer, flags);
-}
-
-#define from_timer(var, callback_timer, timer_fieldname) \
- container_of(callback_timer, typeof(*var), timer_fieldname)
-
-#endif /* !from_timer */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 16, 0)
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 18, 0)
-
-#include <net/cfg80211.h>
-
-/* 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 /* < KERNEL_VERSION(4, 18, 0) */
-
-
-#ifdef __CHECK_POLL
-typedef unsigned __bitwise __poll_t;
-#else
-typedef unsigned __poll_t;
-#endif
-
-#endif /* < KERNEL_VERSION(4, 16, 0) */
-
-/* <DECLARE_EWMA> */
-
-#include <linux/version.h>
-#include_next <linux/average.h>
-
-#include <linux/bug.h>
-
-#ifdef DECLARE_EWMA
-#undef DECLARE_EWMA
-#endif /* DECLARE_EWMA */
-
-/*
- * Exponentially weighted moving average (EWMA)
- *
- * This implements a fixed-precision EWMA algorithm, with both the
- * precision and fall-off coefficient determined at compile-time
- * and built into the generated helper funtions.
- *
- * The first argument to the macro is the name that will be used
- * for the struct and helper functions.
- *
- * The second argument, the precision, expresses how many bits are
- * used for the fractional part of the fixed-precision values.
- *
- * The third argument, the weight reciprocal, determines how the
- * new values will be weighed vs. the old state, new values will
- * get weight 1/weight_rcp and old values 1-1/weight_rcp. Note
- * that this parameter must be a power of two for efficiency.
- */
-
-#define DECLARE_EWMA(name, _precision, _weight_rcp) \
- struct ewma_##name { \
- unsigned long internal; \
- }; \
- static inline void ewma_##name##_init(struct ewma_##name *e) \
- { \
- BUILD_BUG_ON(!__builtin_constant_p(_precision)); \
- BUILD_BUG_ON(!__builtin_constant_p(_weight_rcp)); \
- /* \
- * Even if you want to feed it just 0/1 you should have \
- * some bits for the non-fractional part... \
- */ \
- BUILD_BUG_ON((_precision) > 30); \
- BUILD_BUG_ON_NOT_POWER_OF_2(_weight_rcp); \
- e->internal = 0; \
- } \
- static inline unsigned long \
- ewma_##name##_read(struct ewma_##name *e) \
- { \
- BUILD_BUG_ON(!__builtin_constant_p(_precision)); \
- BUILD_BUG_ON(!__builtin_constant_p(_weight_rcp)); \
- BUILD_BUG_ON((_precision) > 30); \
- BUILD_BUG_ON_NOT_POWER_OF_2(_weight_rcp); \
- return e->internal >> (_precision); \
- } \
- static inline void ewma_##name##_add(struct ewma_##name *e, \
- unsigned long val) \
- { \
- unsigned long internal = READ_ONCE(e->internal); \
- unsigned long weight_rcp = ilog2(_weight_rcp); \
- unsigned long precision = _precision; \
- \
- BUILD_BUG_ON(!__builtin_constant_p(_precision)); \
- BUILD_BUG_ON(!__builtin_constant_p(_weight_rcp)); \
- BUILD_BUG_ON((_precision) > 30); \
- BUILD_BUG_ON_NOT_POWER_OF_2(_weight_rcp); \
- \
- WRITE_ONCE(e->internal, internal ? \
- (((internal << weight_rcp) - internal) + \
- (val << precision)) >> weight_rcp : \
- (val << precision)); \
- }
-
-/* </DECLARE_EWMA> */
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