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cfg80211: aggregate mgmt_tx parameters into a struct

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Change cfg80211 and mac80211 to use cfg80211_mgmt_tx_params
struct to aggregate parameters for mgmt_tx functions.
This makes the functions' signatures less clumsy and allows
less painful parameters extension.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
[fix all other drivers]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Andrei Otcheretianski 2013-11-18 19:06:49 +02:00 committed by Johannes Berg
parent 017b45bb5c
commit b176e62940
10 changed files with 86 additions and 69 deletions
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9
drivers/net/wireless/ath/ath6kl/cfg80211.c
View File

@ -3169,12 +3169,15 @@ static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len)
}
static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_channel *chan, bool offchan,
unsigned int wait, const u8 *buf, size_t len,
bool no_cck, bool dont_wait_for_ack, u64 *cookie)
struct cfg80211_mgmt_tx_params *params, u64 *cookie)
{
struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
struct ath6kl *ar = ath6kl_priv(vif->ndev);
struct ieee80211_channel *chan = params->chan;
const u8 *buf = params->buf;
size_t len = params->len;
unsigned int wait = params->wait;
bool no_cck = params->no_cck;
u32 id, freq;
const struct ieee80211_mgmt *mgmt;
bool more_data, queued;

7
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
View File

@ -3973,11 +3973,12 @@ brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
static int
brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_channel *chan, bool offchan,
unsigned int wait, const u8 *buf, size_t len,
bool no_cck, bool dont_wait_for_ack, u64 *cookie)
struct cfg80211_mgmt_tx_params *params, u64 *cookie)
{
struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
struct ieee80211_channel *chan = params->chan;
const u8 *buf = params->buf;
size_t len = params->len;
const struct ieee80211_mgmt *mgmt;
struct brcmf_cfg80211_vif *vif;
s32 err = 0;

6
drivers/net/wireless/mwifiex/cfg80211.c
View File

@ -184,10 +184,10 @@ mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
*/
static int
mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_channel *chan, bool offchan,
unsigned int wait, const u8 *buf, size_t len,
bool no_cck, bool dont_wait_for_ack, u64 *cookie)
struct cfg80211_mgmt_tx_params *params, u64 *cookie)
{
const u8 *buf = params->buf;
size_t len = params->len;
struct sk_buff *skb;
u16 pkt_len;
const struct ieee80211_mgmt *mgmt;

28
include/net/cfg80211.h
View File

@ -1943,6 +1943,29 @@ struct cfg80211_update_ft_ies_params {
size_t ie_len;
};
/**
* struct cfg80211_mgmt_tx_params - mgmt tx parameters
*
* This structure provides information needed to transmit a mgmt frame
*
* @chan: channel to use
* @offchan: indicates wether off channel operation is required
* @wait: duration for ROC
* @buf: buffer to transmit
* @len: buffer length
* @no_cck: don't use cck rates for this frame
* @dont_wait_for_ack: tells the low level not to wait for an ack
*/
struct cfg80211_mgmt_tx_params {
struct ieee80211_channel *chan;
bool offchan;
unsigned int wait;
const u8 *buf;
size_t len;
bool no_cck;
bool dont_wait_for_ack;
};
/**
* struct cfg80211_ops - backend description for wireless configuration
*
@ -2341,9 +2364,8 @@ struct cfg80211_ops {
u64 cookie);
int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_channel *chan, bool offchan,
unsigned int wait, const u8 *buf, size_t len,
bool no_cck, bool dont_wait_for_ack, u64 *cookie);
struct cfg80211_mgmt_tx_params *params,
u64 *cookie);
int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
struct wireless_dev *wdev,
u64 cookie);

29
net/mac80211/cfg.c
View File

@ -3167,26 +3167,25 @@ static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
}
static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_channel *chan, bool offchan,
unsigned int wait, const u8 *buf, size_t len,
bool no_cck, bool dont_wait_for_ack, u64 *cookie)
struct cfg80211_mgmt_tx_params *params,
u64 *cookie)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
struct sta_info *sta;
const struct ieee80211_mgmt *mgmt = (void *)buf;
const struct ieee80211_mgmt *mgmt = (void *)params->buf;
bool need_offchan = false;
u32 flags;
int ret;
if (dont_wait_for_ack)
if (params->dont_wait_for_ack)
flags = IEEE80211_TX_CTL_NO_ACK;
else
flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
IEEE80211_TX_CTL_REQ_TX_STATUS;
if (no_cck)
if (params->no_cck)
flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
switch (sdata->vif.type) {
@ -3234,7 +3233,7 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
/* configurations requiring offchan cannot work if no channel has been
* specified
*/
if (need_offchan && !chan)
if (need_offchan && !params->chan)
return -EINVAL;
mutex_lock(&local->mtx);
@ -3247,8 +3246,10 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
if (chanctx_conf) {
need_offchan = chan && (chan != chanctx_conf->def.chan);
} else if (!chan) {
need_offchan = params->chan &&
(params->chan !=
chanctx_conf->def.chan);
} else if (!params->chan) {
ret = -EINVAL;
rcu_read_unlock();
goto out_unlock;
@ -3258,19 +3259,19 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
rcu_read_unlock();
}
if (need_offchan && !offchan) {
if (need_offchan && !params->offchan) {
ret = -EBUSY;
goto out_unlock;
}
skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
if (!skb) {
ret = -ENOMEM;
goto out_unlock;
}
skb_reserve(skb, local->hw.extra_tx_headroom);
memcpy(skb_put(skb, len), buf, len);
memcpy(skb_put(skb, params->len), params->buf, params->len);
IEEE80211_SKB_CB(skb)->flags = flags;
@ -3290,8 +3291,8 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
local->hw.offchannel_tx_hw_queue;
/* This will handle all kinds of coalescing and immediate TX */
ret = ieee80211_start_roc_work(local, sdata, chan,
wait, cookie, skb,
ret = ieee80211_start_roc_work(local, sdata, params->chan,
params->wait, cookie, skb,
IEEE80211_ROC_TYPE_MGMT_TX);
if (ret)
kfree_skb(skb);

5
net/wireless/core.h
View File

@ -317,9 +317,8 @@ void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev,
struct ieee80211_channel *chan, bool offchan,
unsigned int wait, const u8 *buf, size_t len,
bool no_cck, bool dont_wait_for_ack, u64 *cookie);
struct cfg80211_mgmt_tx_params *params,
u64 *cookie);
void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
const struct ieee80211_ht_cap *ht_capa_mask);
void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,

12
net/wireless/mlme.c
View File

@ -520,9 +520,7 @@ void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev)
int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev,
struct ieee80211_channel *chan, bool offchan,
unsigned int wait, const u8 *buf, size_t len,
bool no_cck, bool dont_wait_for_ack, u64 *cookie)
struct cfg80211_mgmt_tx_params *params, u64 *cookie)
{
const struct ieee80211_mgmt *mgmt;
u16 stype;
@ -533,10 +531,10 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
if (!rdev->ops->mgmt_tx)
return -EOPNOTSUPP;
if (len < 24 + 1)
if (params->len < 24 + 1)
return -EINVAL;
mgmt = (const struct ieee80211_mgmt *) buf;
mgmt = (const struct ieee80211_mgmt *)params->buf;
if (!ieee80211_is_mgmt(mgmt->frame_control))
return -EINVAL;
@ -615,9 +613,7 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
return -EINVAL;
/* Transmit the Action frame as requested by user space */
return rdev_mgmt_tx(rdev, wdev, chan, offchan,
wait, buf, len, no_cck, dont_wait_for_ack,
cookie);
return rdev_mgmt_tx(rdev, wdev, params, cookie);
}
bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_mbm,

32
net/wireless/nl80211.c
View File

@ -7428,10 +7428,10 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
void *hdr = NULL;
u64 cookie;
struct sk_buff *msg = NULL;
unsigned int wait = 0;
bool offchan, no_cck, dont_wait_for_ack;
dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
struct cfg80211_mgmt_tx_params params = {
.dont_wait_for_ack =
info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
};
if (!info->attrs[NL80211_ATTR_FRAME])
return -EINVAL;
@ -7458,24 +7458,24 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
if (info->attrs[NL80211_ATTR_DURATION]) {
if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
return -EINVAL;
wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
/*
* We should wait on the channel for at least a minimum amount
* of time (10ms) but no longer than the driver supports.
*/
if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
wait > rdev->wiphy.max_remain_on_channel_duration)
if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
params.wait > rdev->wiphy.max_remain_on_channel_duration)
return -EINVAL;
}
offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
return -EINVAL;
no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
/* get the channel if any has been specified, otherwise pass NULL to
* the driver. The latter will use the current one
@ -7487,10 +7487,10 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
return err;
}
if (!chandef.chan && offchan)
if (!chandef.chan && params.offchan)
return -EINVAL;
if (!dont_wait_for_ack) {
if (!params.dont_wait_for_ack) {
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return -ENOMEM;
@ -7503,10 +7503,10 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
}
}
err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
nla_data(info->attrs[NL80211_ATTR_FRAME]),
nla_len(info->attrs[NL80211_ATTR_FRAME]),
no_cck, dont_wait_for_ack, &cookie);
params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
params.chan = chandef.chan;
err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
if (err)
goto free_msg;

12
net/wireless/rdev-ops.h
View File

@ -624,16 +624,12 @@ rdev_cancel_remain_on_channel(struct cfg80211_registered_device *rdev,
static inline int rdev_mgmt_tx(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev,
struct ieee80211_channel *chan, bool offchan,
unsigned int wait, const u8 *buf, size_t len,
bool no_cck, bool dont_wait_for_ack, u64 *cookie)
struct cfg80211_mgmt_tx_params *params,
u64 *cookie)
{
int ret;
trace_rdev_mgmt_tx(&rdev->wiphy, wdev, chan, offchan,
wait, no_cck, dont_wait_for_ack);
ret = rdev->ops->mgmt_tx(&rdev->wiphy, wdev, chan, offchan,
wait, buf, len, no_cck,
dont_wait_for_ack, cookie);
trace_rdev_mgmt_tx(&rdev->wiphy, wdev, params);
ret = rdev->ops->mgmt_tx(&rdev->wiphy, wdev, params, cookie);
trace_rdev_return_int_cookie(&rdev->wiphy, ret, *cookie);
return ret;
}

15
net/wireless/trace.h
View File

@ -1653,9 +1653,8 @@ TRACE_EVENT(rdev_cancel_remain_on_channel,
TRACE_EVENT(rdev_mgmt_tx,
TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_channel *chan, bool offchan,
unsigned int wait, bool no_cck, bool dont_wait_for_ack),
TP_ARGS(wiphy, wdev, chan, offchan, wait, no_cck, dont_wait_for_ack),
struct cfg80211_mgmt_tx_params *params),
TP_ARGS(wiphy, wdev, params),
TP_STRUCT__entry(
WIPHY_ENTRY
WDEV_ENTRY
@ -1668,11 +1667,11 @@ TRACE_EVENT(rdev_mgmt_tx,
TP_fast_assign(
WIPHY_ASSIGN;
WDEV_ASSIGN;
CHAN_ASSIGN(chan);
__entry->offchan = offchan;
__entry->wait = wait;
__entry->no_cck = no_cck;
__entry->dont_wait_for_ack = dont_wait_for_ack;
CHAN_ASSIGN(params->chan);
__entry->offchan = params->offchan;
__entry->wait = params->wait;
__entry->no_cck = params->no_cck;
__entry->dont_wait_for_ack = params->dont_wait_for_ack;
),
TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT ", " CHAN_PR_FMT ", offchan: %s,"
" wait: %u, no cck: %s, dont wait for ack: %s",