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Two more fixes: 

* sometimes, not enough tailroom was allocated for
    software-encrypted management frames in mac80211
  * cfg80211 regulatory restore got an additional condition,
    needs to rerun the checks after that condition changes
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Merge tag 'mac80211-for-davem-2019-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Two more fixes:
 * sometimes, not enough tailroom was allocated for
   software-encrypted management frames in mac80211
 * cfg80211 regulatory restore got an additional condition,
   needs to rerun the checks after that condition changes
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2019-02-01 10:14:12 -08:00
Родитель 294c149a20 e005bd7dde
Коммит 84826ac733
4 изменённых файлов: 14 добавлений и 4 удалений
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12
net/mac80211/tx.c
Просмотреть файл

@ -1938,9 +1938,16 @@ static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata,
int head_need, bool may_encrypt)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_hdr *hdr;
bool enc_tailroom;
int tail_need = 0;
if (may_encrypt && sdata->crypto_tx_tailroom_needed_cnt) {
hdr = (struct ieee80211_hdr *) skb->data;
enc_tailroom = may_encrypt &&
(sdata->crypto_tx_tailroom_needed_cnt ||
ieee80211_is_mgmt(hdr->frame_control));
if (enc_tailroom) {
tail_need = IEEE80211_ENCRYPT_TAILROOM;
tail_need -= skb_tailroom(skb);
tail_need = max_t(int, tail_need, 0);
@ -1948,8 +1955,7 @@ static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata,
if (skb_cloned(skb) &&
(!ieee80211_hw_check(&local->hw, SUPPORTS_CLONED_SKBS) ||
!skb_clone_writable(skb, ETH_HLEN) ||
(may_encrypt && sdata->crypto_tx_tailroom_needed_cnt)))
!skb_clone_writable(skb, ETH_HLEN) || enc_tailroom))
I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
else if (head_need || tail_need)
I802_DEBUG_INC(local->tx_expand_skb_head);

2
net/wireless/ap.c
Просмотреть файл

@ -41,6 +41,8 @@ int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
cfg80211_sched_dfs_chan_update(rdev);
}
schedule_work(&cfg80211_disconnect_work);
return err;
}

2
net/wireless/core.h
Просмотреть файл

@ -445,6 +445,8 @@ void cfg80211_process_wdev_events(struct wireless_dev *wdev);
bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
u32 center_freq_khz, u32 bw_khz);
extern struct work_struct cfg80211_disconnect_work;
/**
* cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
* @wiphy: the wiphy to validate against

2
net/wireless/sme.c
Просмотреть файл

@ -667,7 +667,7 @@ static void disconnect_work(struct work_struct *work)
rtnl_unlock();
}
static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
/*