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Not that much content this time. Some RCU cleanups, crypto

Browse source 
performance improvements, and various patches all over,
 rather than listing them one might as well look into the
 git log instead.
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Merge tag 'mac80211-next-for-john-2014-08-29' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg <[email protected]> says:

"Not that much content this time. Some RCU cleanups, crypto
performance improvements, and various patches all over,
rather than listing them one might as well look into the
git log instead."

Signed-off-by: John W. Linville <[email protected]>

Conflicts:
	drivers/net/wireless/ath/wil6210/wmi.c
This commit is contained in:
John W. Linville 2014-09-04 13:41:33 -04:00
commit ef4ead3f29
39 changed files with 344 additions and 246 deletions
Download patch file Download diff file Expand all files Collapse all files

6
net/wireless/core.c
View file

@ -492,12 +492,6 @@ int wiphy_register(struct wiphy *wiphy)
int i;
u16 ifmodes = wiphy->interface_modes;
/*
* There are major locking problems in nl80211/mac80211 for CSA,
* disable for all drivers until this has been reworked.
*/
wiphy->flags &= ~WIPHY_FLAG_HAS_CHANNEL_SWITCH;
#ifdef CONFIG_PM
if (WARN_ON(wiphy->wowlan &&
(wiphy->wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&

4
net/wireless/mlme.c
View file

@ -605,7 +605,7 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
}
bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_mbm,
const u8 *buf, size_t len, u32 flags, gfp_t gfp)
const u8 *buf, size_t len, u32 flags)
{
struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
@ -648,7 +648,7 @@ bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_mbm,
/* Indicate the received Action frame to user space */
if (nl80211_send_mgmt(rdev, wdev, reg->nlportid,
freq, sig_mbm,
buf, len, flags, gfp))
buf, len, flags, GFP_ATOMIC))
continue;
result = true;

16
net/wireless/nl80211.c
View file

@ -6033,7 +6033,6 @@ static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
const struct cfg80211_bss_ies *ies;
void *hdr;
struct nlattr *bss;
bool tsf = false;
ASSERT_WDEV_LOCK(wdev);
@ -6060,18 +6059,27 @@ static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
goto nla_put_failure;
rcu_read_lock();
/* indicate whether we have probe response data or not */
if (rcu_access_pointer(res->proberesp_ies) &&
nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
goto fail_unlock_rcu;
/* this pointer prefers to be pointed to probe response data
* but is always valid
*/
ies = rcu_dereference(res->ies);
if (ies) {
if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
goto fail_unlock_rcu;
tsf = true;
if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
ies->len, ies->data))
goto fail_unlock_rcu;
}
/* and this pointer is always (unless driver didn't know) beacon data */
ies = rcu_dereference(res->beacon_ies);
if (ies) {
if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
if (ies && ies->from_beacon) {
if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
goto fail_unlock_rcu;
if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
ies->len, ies->data))

21
net/wireless/scan.c
View file

@ -884,6 +884,7 @@ struct cfg80211_bss*
cfg80211_inform_bss_width(struct wiphy *wiphy,
struct ieee80211_channel *rx_channel,
enum nl80211_bss_scan_width scan_width,
enum cfg80211_bss_frame_type ftype,
const u8 *bssid, u64 tsf, u16 capability,
u16 beacon_interval, const u8 *ie, size_t ielen,
s32 signal, gfp_t gfp)
@ -911,21 +912,32 @@ cfg80211_inform_bss_width(struct wiphy *wiphy,
tmp.pub.beacon_interval = beacon_interval;
tmp.pub.capability = capability;
/*
* Since we do not know here whether the IEs are from a Beacon or Probe
* If we do not know here whether the IEs are from a Beacon or Probe
* Response frame, we need to pick one of the options and only use it
* with the driver that does not provide the full Beacon/Probe Response
* frame. Use Beacon frame pointer to avoid indicating that this should
* override the IEs pointer should we have received an earlier
* indication of Probe Response data.
*/
ies = kmalloc(sizeof(*ies) + ielen, gfp);
ies = kzalloc(sizeof(*ies) + ielen, gfp);
if (!ies)
return NULL;
ies->len = ielen;
ies->tsf = tsf;
ies->from_beacon = false;
memcpy(ies->data, ie, ielen);
rcu_assign_pointer(tmp.pub.beacon_ies, ies);
switch (ftype) {
case CFG80211_BSS_FTYPE_BEACON:
ies->from_beacon = true;
/* fall through to assign */
case CFG80211_BSS_FTYPE_UNKNOWN:
rcu_assign_pointer(tmp.pub.beacon_ies, ies);
break;
case CFG80211_BSS_FTYPE_PRESP:
rcu_assign_pointer(tmp.pub.proberesp_ies, ies);
break;
}
rcu_assign_pointer(tmp.pub.ies, ies);
signal_valid = abs(rx_channel->center_freq - channel->center_freq) <=
@ -982,11 +994,12 @@ cfg80211_inform_bss_width_frame(struct wiphy *wiphy,
if (!channel)
return NULL;
ies = kmalloc(sizeof(*ies) + ielen, gfp);
ies = kzalloc(sizeof(*ies) + ielen, gfp);
if (!ies)
return NULL;
ies->len = ielen;
ies->tsf = le64_to_cpu(mgmt->u.probe_resp.timestamp);
ies->from_beacon = ieee80211_is_beacon(mgmt->frame_control);
memcpy(ies->data, mgmt->u.probe_resp.variable, ielen);
if (ieee80211_is_probe_resp(mgmt->frame_control))