X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=include%2Flinux%2Fieee80211.h;h=efb19c6222fba2c8e7b1ac452be0288866819372;hb=34be7eb0ae8e9a0a35c17ca6e2d489edf2be54a9;hp=4764254b88a7ed0595bea59a0978c82e91755b9b;hpb=c6134df3327d741667d598fc1d447a0178a90f04;p=carl9170fw.git

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 4764254..efb19c6 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -110,6 +110,34 @@
 #define IEEE80211_CTL_EXT_SSW_FBACK	0x9000
 #define IEEE80211_CTL_EXT_SSW_ACK	0xa000
 
+
+#define IEEE80211_SN_MASK		((IEEE80211_SCTL_SEQ) >> 4)
+#define IEEE80211_MAX_SN		IEEE80211_SN_MASK
+#define IEEE80211_SN_MODULO		(IEEE80211_MAX_SN + 1)
+
+static inline int ieee80211_sn_less(u16 sn1, u16 sn2)
+{
+	return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
+}
+
+static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
+{
+	return (sn1 + sn2) & IEEE80211_SN_MASK;
+}
+
+static inline u16 ieee80211_sn_inc(u16 sn)
+{
+	return ieee80211_sn_add(sn, 1);
+}
+
+static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
+{
+	return (sn1 - sn2) & IEEE80211_SN_MASK;
+}
+
+#define IEEE80211_SEQ_TO_SN(seq)	(((seq) & IEEE80211_SCTL_SEQ) >> 4)
+#define IEEE80211_SN_TO_SEQ(ssn)	(((ssn) << 4) & IEEE80211_SCTL_SEQ)
+
 /* miscellaneous IEEE 802.11 constants */
 #define IEEE80211_MAX_FRAG_THRESHOLD	2352
 #define IEEE80211_MAX_RTS_THRESHOLD	2353
@@ -177,7 +205,7 @@ struct ieee80211_hdr {
 	u8 addr3[6];
 	__le16 seq_ctrl;
 	u8 addr4[6];
-} __attribute__ ((packed));
+} __packed __aligned(2);
 
 struct ieee80211_hdr_3addr {
 	__le16 frame_control;
@@ -186,7 +214,7 @@ struct ieee80211_hdr_3addr {
 	u8 addr2[6];
 	u8 addr3[6];
 	__le16 seq_ctrl;
-} __attribute__ ((packed));
+} __packed __aligned(2);
 
 struct ieee80211_qos_hdr {
 	__le16 frame_control;
@@ -196,7 +224,7 @@ struct ieee80211_qos_hdr {
 	u8 addr3[6];
 	__le16 seq_ctrl;
 	__le16 qos_ctrl;
-} __attribute__ ((packed));
+} __packed __aligned(2);
 
 /**
  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
@@ -589,7 +617,7 @@ struct ieee80211s_hdr {
 	__le32 seqnum;
 	u8 eaddr1[6];
 	u8 eaddr2[6];
-} __attribute__ ((packed));
+} __packed __aligned(2);
 
 /* Mesh flags */
 #define MESH_FLAGS_AE_A4	0x1
@@ -627,7 +655,7 @@ struct ieee80211_quiet_ie {
 	u8 period;
 	__le16 duration;
 	__le16 offset;
-} __attribute__ ((packed));
+} __packed;
 
 /**
  * struct ieee80211_msrment_ie
@@ -639,7 +667,7 @@ struct ieee80211_msrment_ie {
 	u8 mode;
 	u8 type;
 	u8 request[0];
-} __attribute__ ((packed));
+} __packed;
 
 /**
  * struct ieee80211_channel_sw_ie
@@ -650,7 +678,19 @@ struct ieee80211_channel_sw_ie {
 	u8 mode;
 	u8 new_ch_num;
 	u8 count;
-} __attribute__ ((packed));
+} __packed;
+
+/**
+ * struct ieee80211_ext_chansw_ie
+ *
+ * This structure represents the "Extended Channel Switch Announcement element"
+ */
+struct ieee80211_ext_chansw_ie {
+	u8 mode;
+	u8 new_operating_class;
+	u8 new_ch_num;
+	u8 count;
+} __packed;
 
 /**
  * struct ieee80211_tim
@@ -663,7 +703,7 @@ struct ieee80211_tim_ie {
 	u8 bitmap_ctrl;
 	/* variable size: 1 - 251 bytes */
 	u8 virtual_map[1];
-} __attribute__ ((packed));
+} __packed;
 
 /**
  * struct ieee80211_meshconf_ie
@@ -678,7 +718,7 @@ struct ieee80211_meshconf_ie {
 	u8 meshconf_auth;
 	u8 meshconf_form;
 	u8 meshconf_cap;
-} __attribute__ ((packed));
+} __packed;
 
 /**
  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
@@ -708,12 +748,17 @@ struct ieee80211_rann_ie {
 	__le32 rann_seq;
 	__le32 rann_interval;
 	__le32 rann_metric;
-} __attribute__ ((packed));
+} __packed;
 
 enum ieee80211_rann_flags {
 	RANN_FLAG_IS_GATE = 1 << 0,
 };
 
+enum ieee80211_ht_chanwidth_values {
+	IEEE80211_HT_CHANWIDTH_20MHZ = 0,
+	IEEE80211_HT_CHANWIDTH_ANY = 1,
+};
+
 #define WLAN_SA_QUERY_TR_ID_LEN 2
 
 struct ieee80211_mgmt {
@@ -730,33 +775,33 @@ struct ieee80211_mgmt {
 			__le16 status_code;
 			/* possibly followed by Challenge text */
 			u8 variable[0];
-		} __attribute__ ((packed)) auth;
+		} __packed auth;
 		struct {
 			__le16 reason_code;
-		} __attribute__ ((packed)) deauth;
+		} __packed deauth;
 		struct {
 			__le16 capab_info;
 			__le16 listen_interval;
 			/* followed by SSID and Supported rates */
 			u8 variable[0];
-		} __attribute__ ((packed)) assoc_req;
+		} __packed assoc_req;
 		struct {
 			__le16 capab_info;
 			__le16 status_code;
 			__le16 aid;
 			/* followed by Supported rates */
 			u8 variable[0];
-		} __attribute__ ((packed)) assoc_resp, reassoc_resp;
+		} __packed assoc_resp, reassoc_resp;
 		struct {
 			__le16 capab_info;
 			__le16 listen_interval;
 			u8 current_ap[6];
 			/* followed by SSID and Supported rates */
 			u8 variable[0];
-		} __attribute__ ((packed)) reassoc_req;
+		} __packed reassoc_req;
 		struct {
 			__le16 reason_code;
-		} __attribute__ ((packed)) disassoc;
+		} __packed disassoc;
 		struct {
 			__le64 timestamp;
 			__le16 beacon_int;
@@ -764,11 +809,11 @@ struct ieee80211_mgmt {
 			/* followed by some of SSID, Supported rates,
 			 * FH Params, DS Params, CF Params, IBSS Params, TIM */
 			u8 variable[0];
-		} __attribute__ ((packed)) beacon;
+		} __packed beacon;
 		struct {
 			/* only variable items: SSID, Supported rates */
 			u8 variable[0];
-		} __attribute__ ((packed)) probe_req;
+		} __packed probe_req;
 		struct {
 			__le64 timestamp;
 			__le16 beacon_int;
@@ -776,7 +821,7 @@ struct ieee80211_mgmt {
 			/* followed by some of SSID, Supported rates,
 			 * FH Params, DS Params, CF Params, IBSS Params */
 			u8 variable[0];
-		} __attribute__ ((packed)) probe_resp;
+		} __packed probe_resp;
 		struct {
 			u8 category;
 			union {
@@ -785,55 +830,57 @@ struct ieee80211_mgmt {
 					u8 dialog_token;
 					u8 status_code;
 					u8 variable[0];
-				} __attribute__ ((packed)) wme_action;
+				} __packed wme_action;
 				struct{
 					u8 action_code;
-					u8 element_id;
-					u8 length;
-					struct ieee80211_channel_sw_ie sw_elem;
-				} __attribute__((packed)) chan_switch;
+					u8 variable[0];
+				} __packed chan_switch;
 				struct{
 					u8 action_code;
 					u8 dialog_token;
 					u8 element_id;
 					u8 length;
 					struct ieee80211_msrment_ie msr_elem;
-				} __attribute__((packed)) measurement;
+				} __packed measurement;
 				struct{
 					u8 action_code;
 					u8 dialog_token;
 					__le16 capab;
 					__le16 timeout;
 					__le16 start_seq_num;
-				} __attribute__((packed)) addba_req;
+				} __packed addba_req;
 				struct{
 					u8 action_code;
 					u8 dialog_token;
 					__le16 status;
 					__le16 capab;
 					__le16 timeout;
-				} __attribute__((packed)) addba_resp;
+				} __packed addba_resp;
 				struct{
 					u8 action_code;
 					__le16 params;
 					__le16 reason_code;
-				} __attribute__((packed)) delba;
+				} __packed delba;
 				struct {
 					u8 action_code;
 					u8 variable[0];
-				} __attribute__((packed)) self_prot;
+				} __packed self_prot;
 				struct{
 					u8 action_code;
 					u8 variable[0];
-				} __attribute__((packed)) mesh_action;
+				} __packed mesh_action;
 				struct {
 					u8 action;
 					u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
-				} __attribute__ ((packed)) sa_query;
+				} __packed sa_query;
 				struct {
 					u8 action;
 					u8 smps_control;
-				} __attribute__ ((packed)) ht_smps;
+				} __packed ht_smps;
+				struct {
+					u8 action_code;
+					u8 chanwidth;
+				} __packed ht_notify_cw;
 				struct {
 					u8 action_code;
 					u8 dialog_token;
@@ -841,9 +888,9 @@ struct ieee80211_mgmt {
 					u8 variable[0];
 				} __packed tdls_discover_resp;
 			} u;
-		} __attribute__ ((packed)) action;
+		} __packed action;
 	} u;
-} __attribute__ ((packed));
+} __packed __aligned(2);
 
 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY	127
@@ -859,7 +906,7 @@ struct ieee80211_mmie {
 	__le16 key_id;
 	u8 sequence_number[6];
 	u8 mic[8];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_vendor_ie {
 	u8 element_id;
@@ -874,20 +921,20 @@ struct ieee80211_rts {
 	__le16 duration;
 	u8 ra[6];
 	u8 ta[6];
-} __attribute__ ((packed));
+} __packed __aligned(2);
 
 struct ieee80211_cts {
 	__le16 frame_control;
 	__le16 duration;
 	u8 ra[6];
-} __attribute__ ((packed));
+} __packed __aligned(2);
 
 struct ieee80211_pspoll {
 	__le16 frame_control;
 	__le16 aid;
 	u8 bssid[6];
 	u8 ta[6];
-} __attribute__ ((packed));
+} __packed __aligned(2);
 
 /* TDLS */
 
@@ -967,6 +1014,26 @@ enum ieee80211_p2p_attr_id {
 	IEEE80211_P2P_ATTR_MAX
 };
 
+/* Notice of Absence attribute - described in P2P spec 4.1.14 */
+/* Typical max value used here */
+#define IEEE80211_P2P_NOA_DESC_MAX	4
+
+struct ieee80211_p2p_noa_desc {
+	u8 count;
+	__le32 duration;
+	__le32 interval;
+	__le32 start_time;
+} __packed;
+
+struct ieee80211_p2p_noa_attr {
+	u8 index;
+	u8 oppps_ctwindow;
+	struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
+} __packed;
+
+#define IEEE80211_P2P_OPPPS_ENABLE_BIT		BIT(7)
+#define IEEE80211_P2P_OPPPS_CTWINDOW_MASK	0x7F
+
 /**
  * struct ieee80211_bar - HT Block Ack Request
  *
@@ -980,7 +1047,7 @@ struct ieee80211_bar {
 	__u8 ta[6];
 	__le16 control;
 	__le16 start_seq_num;
-} __attribute__((packed)) __aligned(4);
+} __packed __aligned(4);
 
 /* 802.11 BA(R) control masks */
 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL	0x0000
@@ -1004,7 +1071,7 @@ struct ieee80211_ba {
 
 	__le16 start_seq_num;
 	u8 bitmap[8];
-} __attribute__((packed));
+} __packed;
 
 #define IEEE80211_HT_MCS_MASK_LEN		10
 
@@ -1022,7 +1089,7 @@ struct ieee80211_mcs_info {
 	__le16 rx_highest;
 	u8 tx_params;
 	u8 reserved[3];
-} __attribute__((packed));
+} __packed;
 
 /* 802.11n HT capability MSC set */
 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK	0x3ff
@@ -1061,7 +1128,7 @@ struct ieee80211_ht_cap {
 	__le16 extended_ht_cap_info;
 	__le32 tx_BF_cap_info;
 	u8 antenna_selection_info;
-} __attribute__ ((packed));
+} __packed;
 
 /* 802.11n HT capabilities masks (for cap_info) */
 #define IEEE80211_HT_CAP_LDPC_CODING		0x0001
@@ -1132,7 +1199,7 @@ struct ieee80211_ht_operation {
 	__le16 operation_mode;
 	__le16 stbc_param;
 	u8 basic_set[16];
-} __attribute__ ((packed));
+} __packed;
 
 /* for ht_param */
 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET		0x03
@@ -1242,6 +1309,21 @@ struct ieee80211_vht_cap {
 	struct ieee80211_vht_mcs_info supp_mcs;
 } __packed;
 
+/**
+ * enum ieee80211_vht_chanwidth - VHT channel width
+ * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
+ *	determine the channel width (20 or 40 MHz)
+ * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
+ * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
+ * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
+ */
+enum ieee80211_vht_chanwidth {
+	IEEE80211_VHT_CHANWIDTH_USE_HT		= 0,
+	IEEE80211_VHT_CHANWIDTH_80MHZ		= 1,
+	IEEE80211_VHT_CHANWIDTH_160MHZ		= 2,
+	IEEE80211_VHT_CHANWIDTH_80P80MHZ	= 3,
+};
+
 /**
  * struct ieee80211_vht_operation - VHT operation IE
  *
@@ -1260,38 +1342,36 @@ struct ieee80211_vht_operation {
 } __packed;
 
 
-#define IEEE80211_VHT_MCS_ZERO_TO_SEVEN_SUPPORT 0
-#define IEEE80211_VHT_MCS_ZERO_TO_EIGHT_SUPPORT 1
-#define IEEE80211_VHT_MCS_ZERO_TO_NINE_SUPPORT  2
-#define IEEE80211_VHT_MCS_NOT_SUPPORTED 3
-
 /* 802.11ac VHT Capabilities */
-#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                0x00000000
-#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                0x00000001
-#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454               0x00000002
-#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ              0x00000004
-#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ     0x00000008
-#define IEEE80211_VHT_CAP_RXLDPC                              0x00000010
-#define IEEE80211_VHT_CAP_SHORT_GI_80                         0x00000020
-#define IEEE80211_VHT_CAP_SHORT_GI_160                        0x00000040
-#define IEEE80211_VHT_CAP_TXSTBC                              0x00000080
-#define IEEE80211_VHT_CAP_RXSTBC_1                            0x00000100
-#define IEEE80211_VHT_CAP_RXSTBC_2                            0x00000200
-#define IEEE80211_VHT_CAP_RXSTBC_3                            0x00000300
-#define IEEE80211_VHT_CAP_RXSTBC_4                            0x00000400
-#define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE               0x00000800
-#define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE               0x00001000
-#define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX             0x00006000
-#define IEEE80211_VHT_CAP_SOUNDING_DIMENTION_MAX              0x00030000
-#define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE               0x00080000
-#define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE               0x00100000
-#define IEEE80211_VHT_CAP_VHT_TXOP_PS                         0x00200000
-#define IEEE80211_VHT_CAP_HTC_VHT                             0x00400000
-#define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT          0x00800000
-#define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB   0x08000000
-#define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB     0x0c000000
-#define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                  0x10000000
-#define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                  0x20000000
+#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895			0x00000000
+#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991			0x00000001
+#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454			0x00000002
+#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ		0x00000004
+#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ	0x00000008
+#define IEEE80211_VHT_CAP_RXLDPC				0x00000010
+#define IEEE80211_VHT_CAP_SHORT_GI_80				0x00000020
+#define IEEE80211_VHT_CAP_SHORT_GI_160				0x00000040
+#define IEEE80211_VHT_CAP_TXSTBC				0x00000080
+#define IEEE80211_VHT_CAP_RXSTBC_1				0x00000100
+#define IEEE80211_VHT_CAP_RXSTBC_2				0x00000200
+#define IEEE80211_VHT_CAP_RXSTBC_3				0x00000300
+#define IEEE80211_VHT_CAP_RXSTBC_4				0x00000400
+#define IEEE80211_VHT_CAP_RXSTBC_MASK				0x00000700
+#define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE			0x00000800
+#define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE			0x00001000
+#define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX		0x00006000
+#define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX		0x00030000
+#define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE			0x00080000
+#define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE			0x00100000
+#define IEEE80211_VHT_CAP_VHT_TXOP_PS				0x00200000
+#define IEEE80211_VHT_CAP_HTC_VHT				0x00400000
+#define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT	23
+#define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK	\
+		(7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
+#define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB	0x08000000
+#define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB	0x0c000000
+#define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN			0x10000000
+#define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN			0x20000000
 
 /* Authentication algorithms */
 #define WLAN_AUTH_OPEN 0
@@ -1324,16 +1404,21 @@ struct ieee80211_vht_operation {
 #define WLAN_CAPABILITY_SPECTRUM_MGMT	(1<<8)
 #define WLAN_CAPABILITY_QOS		(1<<9)
 #define WLAN_CAPABILITY_SHORT_SLOT_TIME	(1<<10)
+#define WLAN_CAPABILITY_APSD		(1<<11)
+#define WLAN_CAPABILITY_RADIO_MEASURE	(1<<12)
 #define WLAN_CAPABILITY_DSSS_OFDM	(1<<13)
+#define WLAN_CAPABILITY_DEL_BACK	(1<<14)
+#define WLAN_CAPABILITY_IMM_BACK	(1<<15)
 
 /* DMG (60gHz) 802.11ad */
 /* type - bits 0..1 */
+#define WLAN_CAPABILITY_DMG_TYPE_MASK		(3<<0)
 #define WLAN_CAPABILITY_DMG_TYPE_IBSS		(1<<0) /* Tx by: STA */
 #define WLAN_CAPABILITY_DMG_TYPE_PBSS		(2<<0) /* Tx by: PCP */
 #define WLAN_CAPABILITY_DMG_TYPE_AP		(3<<0) /* Tx by: AP */
 
 #define WLAN_CAPABILITY_DMG_CBAP_ONLY		(1<<2)
-#define WLAN_CAPABILITY_DMG_CBAP_SOURCE	(1<<3)
+#define WLAN_CAPABILITY_DMG_CBAP_SOURCE		(1<<3)
 #define WLAN_CAPABILITY_DMG_PRIVACY		(1<<4)
 #define WLAN_CAPABILITY_DMG_ECPAC		(1<<5)
 
@@ -1729,6 +1814,8 @@ enum ieee80211_tdls_actioncode {
 #define WLAN_EXT_CAPA5_TDLS_ENABLED	BIT(5)
 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED	BIT(6)
 
+#define WLAN_EXT_CAPA8_OPMODE_NOTIF	BIT(6)
+
 /* TDLS specific payload type in the LLC/SNAP header */
 #define WLAN_TDLS_SNAP_RFTYPE	0x2
 
@@ -1847,14 +1934,14 @@ struct ieee80211_country_ie_triplet {
 			u8 first_channel;
 			u8 num_channels;
 			s8 max_power;
-		} __attribute__ ((packed)) chans;
+		} __packed chans;
 		struct {
 			u8 reg_extension_id;
 			u8 reg_class;
 			u8 coverage_class;
-		} __attribute__ ((packed)) ext;
+		} __packed ext;
 	};
-} __attribute__ ((packed));
+} __packed;
 
 enum ieee80211_timeout_interval_type {
 	WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
@@ -1862,6 +1949,16 @@ enum ieee80211_timeout_interval_type {
 	WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
 };
 
+/**
+ * struct ieee80211_timeout_interval_ie - Timeout Interval element
+ * @type: type, see &enum ieee80211_timeout_interval_type
+ * @value: timeout interval value
+ */
+struct ieee80211_timeout_interval_ie {
+	u8 type;
+	__le32 value;
+} __packed;
+
 /* BACK action code */
 enum ieee80211_back_actioncode {
 	WLAN_ACTION_ADDBA_REQ = 0,
@@ -2102,7 +2199,7 @@ static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
  * @tim_len: length of the TIM IE
  * @aid: the AID to look for
  */
-static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
+static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
 				       u8 tim_len, u16 aid)
 {
 	u8 mask;