Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next

John W. Linville says:

====================
Please pull this batch of updates intended for the 3.14 stream...

For the mac80211 bits, Johannes says:

"I have various improvements/cleanups/fixes all over, but the shortlog
shows that Luis's regulatory work and mesh work from the cozybit folks
are the biggest ones, along with the CSA fixes."

Along with that, we have big batches of updates to brcmfmac, rtlwifi,
and ath9k.  There are updates to wcn36xx, rt2x00, and a handful of
others as well.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 147 insertions, 49 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 3eae46cb1acf..e9abc7b536cd 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -91,9 +91,8 @@ enum ieee80211_band {
  * Channel flags set by the regulatory control code.
  *
  * @IEEE80211_CHAN_DISABLED: This channel is disabled.
- * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
- *      on this channel.
- * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
+ * @IEEE80211_CHAN_NO_IR: do not initiate radiation, this includes
+ *      sending probe requests or beaconing.
  * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
  * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
  *      is not permitted.
@@ -113,8 +112,8 @@ enum ieee80211_band {
  */
 enum ieee80211_channel_flags {
         IEEE80211_CHAN_DISABLED         = 1<<0,
-        IEEE80211_CHAN_PASSIVE_SCAN     = 1<<1,
-        IEEE80211_CHAN_NO_IBSS          = 1<<2,
+        IEEE80211_CHAN_NO_IR            = 1<<1,
+        /* hole at 1<<2 */
         IEEE80211_CHAN_RADAR            = 1<<3,
         IEEE80211_CHAN_NO_HT40PLUS      = 1<<4,
         IEEE80211_CHAN_NO_HT40MINUS     = 1<<5,
@@ -1945,6 +1944,29 @@ struct cfg80211_update_ft_ies_params {
 };
 
 /**
+ * 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
  *
  * This struct is registered by fullmac card drivers and/or wireless stacks
@@ -2342,9 +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);
@@ -2438,27 +2459,6 @@ struct cfg80211_ops {
 /**
  * enum wiphy_flags - wiphy capability flags
  *
- * @WIPHY_FLAG_CUSTOM_REGULATORY:  tells us the driver for this device
- *      has its own custom regulatory domain and cannot identify the
- *      ISO / IEC 3166 alpha2 it belongs to. When this is enabled
- *      we will disregard the first regulatory hint (when the
- *      initiator is %REGDOM_SET_BY_CORE).
- * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
- *      ignore regulatory domain settings until it gets its own regulatory
- *      domain via its regulatory_hint() unless the regulatory hint is
- *      from a country IE. After its gets its own regulatory domain it will
- *      only allow further regulatory domain settings to further enhance
- *      compliance. For example if channel 13 and 14 are disabled by this
- *      regulatory domain no user regulatory domain can enable these channels
- *      at a later time. This can be used for devices which do not have
- *      calibration information guaranteed for frequencies or settings
- *      outside of its regulatory domain. If used in combination with
- *      WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
- *      will be followed.
- * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
- *      that passive scan flags and beaconing flags may not be lifted by
- *      cfg80211 due to regulatory beacon hints. For more information on beacon
- *      hints read the documenation for regulatory_hint_found_beacon()
  * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
  *      wiphy at all
  * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
@@ -2497,9 +2497,9 @@ struct cfg80211_ops {
  *      beaconing mode (AP, IBSS, Mesh, ...).
  */
 enum wiphy_flags {
-        WIPHY_FLAG_CUSTOM_REGULATORY            = BIT(0),
-        WIPHY_FLAG_STRICT_REGULATORY            = BIT(1),
-        WIPHY_FLAG_DISABLE_BEACON_HINTS         = BIT(2),
+        /* use hole at 0 */
+        /* use hole at 1 */
+        /* use hole at 2 */
         WIPHY_FLAG_NETNS_OK                     = BIT(3),
         WIPHY_FLAG_PS_ON_BY_DEFAULT             = BIT(4),
         WIPHY_FLAG_4ADDR_AP                     = BIT(5),
@@ -2721,6 +2721,8 @@ struct wiphy_coalesce_support {
  * @software_iftypes: bitmask of software interface types, these are not
  *      subject to any restrictions since they are purely managed in SW.
  * @flags: wiphy flags, see &enum wiphy_flags
+ * @regulatory_flags: wiphy regulatory flags, see
+ *      &enum ieee80211_regulatory_flags
  * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
  * @bss_priv_size: each BSS struct has private data allocated with it,
  *      this variable determines its size
@@ -2809,7 +2811,7 @@ struct wiphy {
 
         u16 max_acl_mac_addrs;
 
-        u32 flags, features;
+        u32 flags, regulatory_flags, features;
 
         u32 ap_sme_capa;
 
@@ -3472,6 +3474,9 @@ int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
  * custom regulatory domain will be trusted completely and as such previous
  * default channel settings will be disregarded. If no rule is found for a
  * channel on the regulatory domain the channel will be disabled.
+ * Drivers using this for a wiphy should also set the wiphy flag
+ * WIPHY_FLAG_CUSTOM_REGULATORY or cfg80211 will set it for the wiphy
+ * that called this helper.
  */
 void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
                                    const struct ieee80211_regdomain *regd);
@@ -4146,6 +4151,7 @@ void cfg80211_radar_event(struct wiphy *wiphy,
 /**
  * cfg80211_cac_event - Channel availability check (CAC) event
  * @netdev: network device
+ * @chandef: chandef for the current channel
  * @event: type of event
  * @gfp: context flags
  *
@@ -4154,6 +4160,7 @@ void cfg80211_radar_event(struct wiphy *wiphy,
  * also by full-MAC drivers.
  */
 void cfg80211_cac_event(struct net_device *netdev,
+                        const struct cfg80211_chan_def *chandef,
                         enum nl80211_radar_event event, gfp_t gfp);
 
 
@@ -4279,7 +4286,8 @@ bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
  * @dev: the device which switched channels
  * @chandef: the new channel definition
  *
- * Acquires wdev_lock, so must only be called from sleepable driver context!
+ * Caller must acquire wdev_lock, therefore must only be called from sleepable
+ * driver context!
  */
 void cfg80211_ch_switch_notify(struct net_device *dev,
                                struct cfg80211_chan_def *chandef);
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 7ceed99a05bc..3cd408b326de 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -154,12 +154,14 @@ struct ieee80211_low_level_stats {
  * @IEEE80211_CHANCTX_CHANGE_RADAR: radar detection flag changed
  * @IEEE80211_CHANCTX_CHANGE_CHANNEL: switched to another operating channel,
  *      this is used only with channel switching with CSA
+ * @IEEE80211_CHANCTX_CHANGE_MIN_WIDTH: The min required channel width changed
  */
 enum ieee80211_chanctx_change {
         IEEE80211_CHANCTX_CHANGE_WIDTH          = BIT(0),
         IEEE80211_CHANCTX_CHANGE_RX_CHAINS      = BIT(1),
         IEEE80211_CHANCTX_CHANGE_RADAR          = BIT(2),
         IEEE80211_CHANCTX_CHANGE_CHANNEL        = BIT(3),
+        IEEE80211_CHANCTX_CHANGE_MIN_WIDTH      = BIT(4),
 };
 
 /**
@@ -169,6 +171,7 @@ enum ieee80211_chanctx_change {
  * that contains it is visible in mac80211 only.
  *
  * @def: the channel definition
+ * @min_def: the minimum channel definition currently required.
  * @rx_chains_static: The number of RX chains that must always be
  *      active on the channel to receive MIMO transmissions
  * @rx_chains_dynamic: The number of RX chains that must be enabled
@@ -180,6 +183,7 @@ enum ieee80211_chanctx_change {
  */
 struct ieee80211_chanctx_conf {
         struct cfg80211_chan_def def;
+        struct cfg80211_chan_def min_def;
 
         u8 rx_chains_static, rx_chains_dynamic;
 
@@ -1229,6 +1233,36 @@ struct ieee80211_key_conf {
 };
 
 /**
+ * struct ieee80211_cipher_scheme - cipher scheme
+ *
+ * This structure contains a cipher scheme information defining
+ * the secure packet crypto handling.
+ *
+ * @cipher: a cipher suite selector
+ * @iftype: a cipher iftype bit mask indicating an allowed cipher usage
+ * @hdr_len: a length of a security header used the cipher
+ * @pn_len: a length of a packet number in the security header
+ * @pn_off: an offset of pn from the beginning of the security header
+ * @key_idx_off: an offset of key index byte in the security header
+ * @key_idx_mask: a bit mask of key_idx bits
+ * @key_idx_shift: a bit shift needed to get key_idx
+ *     key_idx value calculation:
+ *      (sec_header_base[key_idx_off] & key_idx_mask) >> key_idx_shift
+ * @mic_len: a mic length in bytes
+ */
+struct ieee80211_cipher_scheme {
+        u32 cipher;
+        u16 iftype;
+        u8 hdr_len;
+        u8 pn_len;
+        u8 pn_off;
+        u8 key_idx_off;
+        u8 key_idx_mask;
+        u8 key_idx_shift;
+        u8 mic_len;
+};
+
+/**
  * enum set_key_cmd - key command
  *
  * Used with the set_key() callback in &struct ieee80211_ops, this
@@ -1636,6 +1670,10 @@ enum ieee80211_hw_flags {
  * @uapsd_max_sp_len: maximum number of total buffered frames the WMM AP may
  *      deliver to a WMM STA during any Service Period triggered by the WMM STA.
  *      Use IEEE80211_WMM_IE_STA_QOSINFO_SP_* for correct values.
+ *
+ * @n_cipher_schemes: a size of an array of cipher schemes definitions.
+ * @cipher_schemes: a pointer to an array of cipher scheme definitions
+ *      supported by HW.
  */
 struct ieee80211_hw {
         struct ieee80211_conf conf;
@@ -1663,6 +1701,8 @@ struct ieee80211_hw {
         netdev_features_t netdev_features;
         u8 uapsd_queues;
         u8 uapsd_max_sp_len;
+        u8 n_cipher_schemes;
+        const struct ieee80211_cipher_scheme *cipher_schemes;
 };
 
 /**
diff --git a/include/net/regulatory.h b/include/net/regulatory.h
index f17ed590d64a..c96a0b86f342 100644
--- a/include/net/regulatory.h
+++ b/include/net/regulatory.h
@@ -38,17 +38,17 @@ enum environment_cap {
  *
  * @rcu_head: RCU head struct used to free the request
  * @wiphy_idx: this is set if this request's initiator is
- *      %REGDOM_SET_BY_COUNTRY_IE or %REGDOM_SET_BY_DRIVER. This
- *      can be used by the wireless core to deal with conflicts
- *      and potentially inform users of which devices specifically
- *      cased the conflicts.
+ *      %REGDOM_SET_BY_COUNTRY_IE or %REGDOM_SET_BY_DRIVER. This
+ *      can be used by the wireless core to deal with conflicts
+ *      and potentially inform users of which devices specifically
+ *      cased the conflicts.
  * @initiator: indicates who sent this request, could be any of
- *      of those set in nl80211_reg_initiator (%NL80211_REGDOM_SET_BY_*)
+ *      of those set in nl80211_reg_initiator (%NL80211_REGDOM_SET_BY_*)
  * @alpha2: the ISO / IEC 3166 alpha2 country code of the requested
- *      regulatory domain. We have a few special codes:
- *      00 - World regulatory domain
- *      99 - built by driver but a specific alpha2 cannot be determined
- *      98 - result of an intersection between two regulatory domains
+ *      regulatory domain. We have a few special codes:
+ *      00 - World regulatory domain
+ *      99 - built by driver but a specific alpha2 cannot be determined
+ *      98 - result of an intersection between two regulatory domains
  *      97 - regulatory domain has not yet been configured
  * @dfs_region: If CRDA responded with a regulatory domain that requires
  *      DFS master operation on a known DFS region (NL80211_DFS_*),
@@ -59,8 +59,8 @@ enum environment_cap {
  *      of hint passed. This could be any of the %NL80211_USER_REG_HINT_*
  *      types.
  * @intersect: indicates whether the wireless core should intersect
- *      the requested regulatory domain with the presently set regulatory
- *      domain.
+ *      the requested regulatory domain with the presently set regulatory
+ *      domain.
  * @processed: indicates whether or not this requests has already been
  *      processed. When the last request is processed it means that the
  *      currently regulatory domain set on cfg80211 is updated from
@@ -68,9 +68,9 @@ enum environment_cap {
  *      the last request is not yet processed we must yield until it
  *      is processed before processing any new requests.
  * @country_ie_checksum: checksum of the last processed and accepted
- *      country IE
+ *      country IE
  * @country_ie_env: lets us know if the AP is telling us we are outdoor,
- *      indoor, or if it doesn't matter
+ *      indoor, or if it doesn't matter
  * @list: used to insert into the reg_requests_list linked list
  */
 struct regulatory_request {
@@ -79,13 +79,63 @@ struct regulatory_request {
         enum nl80211_reg_initiator initiator;
         enum nl80211_user_reg_hint_type user_reg_hint_type;
         char alpha2[2];
-        u8 dfs_region;
+        enum nl80211_dfs_regions dfs_region;
         bool intersect;
         bool processed;
         enum environment_cap country_ie_env;
         struct list_head list;
 };
 
+/**
+ * enum ieee80211_regulatory_flags - device regulatory flags
+ *
+ * @REGULATORY_CUSTOM_REG: tells us the driver for this device
+ *      has its own custom regulatory domain and cannot identify the
+ *      ISO / IEC 3166 alpha2 it belongs to. When this is enabled
+ *      we will disregard the first regulatory hint (when the
+ *      initiator is %REGDOM_SET_BY_CORE). Drivers that use
+ *      wiphy_apply_custom_regulatory() should have this flag set
+ *      or the regulatory core will set it for the wiphy.
+ * @REGULATORY_STRICT_REG: tells us that the wiphy for this device
+ *      has regulatory domain that it wishes to be considered as the
+ *      superset for regulatory rules. After this device gets its regulatory
+ *      domain programmed further regulatory hints shall only be considered
+ *      for this device to enhance regulatory compliance, forcing the
+ *      device to only possibly use subsets of the original regulatory
+ *      rules. For example if channel 13 and 14 are disabled by this
+ *      device's regulatory domain no user specified regulatory hint which
+ *      has these channels enabled would enable them for this wiphy,
+ *      the device's original regulatory domain will be trusted as the
+ *      base. You can program the superset of regulatory rules for this
+ *      wiphy with regulatory_hint() for cards programmed with an
+ *      ISO3166-alpha2 country code. wiphys that use regulatory_hint()
+ *      will have their wiphy->regd programmed once the regulatory
+ *      domain is set, and all other regulatory hints will be ignored
+ *      until their own regulatory domain gets programmed.
+ * @REGULATORY_DISABLE_BEACON_HINTS: enable this if your driver needs to
+ *      ensure that passive scan flags and beaconing flags may not be lifted by
+ *      cfg80211 due to regulatory beacon hints. For more information on beacon
+ *      hints read the documenation for regulatory_hint_found_beacon()
+ * @REGULATORY_COUNTRY_IE_FOLLOW_POWER:  for devices that have a preference
+ *      that even though they may have programmed their own custom power
+ *      setting prior to wiphy registration, they want to ensure their channel
+ *      power settings are updated for this connection with the power settings
+ *      derived from the regulatory domain. The regulatory domain used will be
+ *      based on the ISO3166-alpha2 from country IE provided through
+ *      regulatory_hint_country_ie()
+ * @REGULATORY_COUNTRY_IE_IGNORE: for devices that have a preference to ignore
+ *      all country IE information processed by the regulatory core. This will
+ *      override %REGULATORY_COUNTRY_IE_FOLLOW_POWER as all country IEs will
+ *      be ignored.
+ */
+enum ieee80211_regulatory_flags {
+        REGULATORY_CUSTOM_REG                   = BIT(0),
+        REGULATORY_STRICT_REG                   = BIT(1),
+        REGULATORY_DISABLE_BEACON_HINTS         = BIT(2),
+        REGULATORY_COUNTRY_IE_FOLLOW_POWER      = BIT(3),
+        REGULATORY_COUNTRY_IE_IGNORE            = BIT(4),
+};
+
 struct ieee80211_freq_range {
         u32 start_freq_khz;
         u32 end_freq_khz;
@@ -107,7 +157,7 @@ struct ieee80211_regdomain {
         struct rcu_head rcu_head;
         u32 n_reg_rules;
         char alpha2[2];
-        u8 dfs_region;
+        enum nl80211_dfs_regions dfs_region;
         struct ieee80211_reg_rule reg_rules[];
 };