staging: ks7010: add new helpers to achieve mib set request and simplify code

New three functions have been created to centralice and simplify
calls related with set MIB requests:

    - hostif_mib_set_request_int
    - hostif_mib_set_request_bool
    - hostif_mib_set_request_ostring

Using these in different calls simplify functions related with
this mainly when types are bool and int because no more conversions
are needed in the caller functions. Those conversion details are
now located in the new helpers improving a lot readability. Calls
in hostif_sme_set_wep function has change also some if's to check
invalid value first avoiding one level indentation.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ks7010/ks_hostif.c

@@ -1216,6 +1216,32 @@ static void hostif_mib_set_request(struct ks_wlan_private *priv,
 	ks_wlan_hw_tx(priv, pp, hif_align_size(sizeof(*pp) + size), NULL, NULL);
 }
 
+static inline void hostif_mib_set_request_int(struct ks_wlan_private *priv,
+					      enum mib_attribute attr, int val)
+{
+	__le32 v = cpu_to_le32((u32)val);
+	size_t size = sizeof(v);
+
+	hostif_mib_set_request(priv, attr, MIB_VALUE_TYPE_INT, &v, size);
+}
+
+static inline void hostif_mib_set_request_bool(struct ks_wlan_private *priv,
+					       enum mib_attribute attr,
+					       bool val)
+{
+	__le32 v = cpu_to_le32((u32)val);
+	size_t size = sizeof(v);
+
+	hostif_mib_set_request(priv, attr, MIB_VALUE_TYPE_BOOL, &v, size);
+}
+
+static inline void hostif_mib_set_request_ostring(struct ks_wlan_private *priv,
+						  enum mib_attribute attr,
+						  void *data, size_t size)
+{
+	hostif_mib_set_request(priv, attr, MIB_VALUE_TYPE_OSTRING, data, size);
+}
+
 static
 void hostif_start_request(struct ks_wlan_private *priv, unsigned char mode)
 {
@@ -1548,53 +1574,48 @@ void hostif_receive(struct ks_wlan_private *priv, unsigned char *p,
 		hostif_event_check(priv);
 }
 
-static
-void hostif_sme_set_wep(struct ks_wlan_private *priv, int type)
+static void hostif_sme_set_wep(struct ks_wlan_private *priv, int type)
 {
-	__le32 val;
-
 	switch (type) {
 	case SME_WEP_INDEX_REQUEST:
-		val = cpu_to_le32((uint32_t)(priv->reg.wep_index));
-		hostif_mib_set_request(priv, DOT11_WEP_DEFAULT_KEY_ID,
-				       MIB_VALUE_TYPE_INT, &val, sizeof(val));
+		hostif_mib_set_request_int(priv, DOT11_WEP_DEFAULT_KEY_ID,
+					   priv->reg.wep_index);
 		break;
 	case SME_WEP_KEY1_REQUEST:
-		if (!priv->wpa.wpa_enabled)
-			hostif_mib_set_request(priv,
+		if (priv->wpa.wpa_enabled)
+			return;
+		hostif_mib_set_request_ostring(priv,
 					       DOT11_WEP_DEFAULT_KEY_VALUE1,
-					       MIB_VALUE_TYPE_OSTRING,
 					       &priv->reg.wep_key[0].val[0],
 					       priv->reg.wep_key[0].size);
 		break;
 	case SME_WEP_KEY2_REQUEST:
-		if (!priv->wpa.wpa_enabled)
-			hostif_mib_set_request(priv,
+		if (priv->wpa.wpa_enabled)
+			return;
+		hostif_mib_set_request_ostring(priv,
 					       DOT11_WEP_DEFAULT_KEY_VALUE2,
-					       MIB_VALUE_TYPE_OSTRING,
 					       &priv->reg.wep_key[1].val[0],
 					       priv->reg.wep_key[1].size);
 		break;
 	case SME_WEP_KEY3_REQUEST:
-		if (!priv->wpa.wpa_enabled)
-			hostif_mib_set_request(priv,
+		if (priv->wpa.wpa_enabled)
+			return;
+		hostif_mib_set_request_ostring(priv,
 					       DOT11_WEP_DEFAULT_KEY_VALUE3,
-					       MIB_VALUE_TYPE_OSTRING,
 					       &priv->reg.wep_key[2].val[0],
 					       priv->reg.wep_key[2].size);
 		break;
 	case SME_WEP_KEY4_REQUEST:
-		if (!priv->wpa.wpa_enabled)
-			hostif_mib_set_request(priv,
+		if (priv->wpa.wpa_enabled)
+			return;
+		hostif_mib_set_request_ostring(priv,
 					       DOT11_WEP_DEFAULT_KEY_VALUE4,
-					       MIB_VALUE_TYPE_OSTRING,
 					       &priv->reg.wep_key[3].val[0],
 					       priv->reg.wep_key[3].size);
 		break;
 	case SME_WEP_FLAG_REQUEST:
-		val = cpu_to_le32((uint32_t)(priv->reg.privacy_invoked));
-		hostif_mib_set_request(priv, DOT11_PRIVACY_INVOKED,
-				       MIB_VALUE_TYPE_BOOL, &val, sizeof(val));
+		hostif_mib_set_request_bool(priv, DOT11_PRIVACY_INVOKED,
+				            priv->reg.privacy_invoked);
 		break;
 	}
 }
@@ -1614,7 +1635,6 @@ void hostif_sme_set_rsn(struct ks_wlan_private *priv, int type)
 {
 	struct wpa_suite wpa_suite;
 	struct rsn_mode rsn_mode;
-	__le32 val;
 	size_t size;
 
 	memset(&wpa_suite, 0, sizeof(wpa_suite));
@@ -1667,9 +1687,9 @@ void hostif_sme_set_rsn(struct ks_wlan_private *priv, int type)
 
 		size = sizeof(wpa_suite.size) +
 		       (CIPHER_ID_LEN * le16_to_cpu(wpa_suite.size));
-		hostif_mib_set_request(priv, DOT11_RSN_CONFIG_UNICAST_CIPHER,
-				       MIB_VALUE_TYPE_OSTRING,
-				       &wpa_suite, size);
+		hostif_mib_set_request_ostring(priv,
+					       DOT11_RSN_CONFIG_UNICAST_CIPHER,
+					       &wpa_suite, size);
 		break;
 	case SME_RSN_MCAST_REQUEST:
 		switch (priv->wpa.group_suite) {
@@ -1714,10 +1734,10 @@ void hostif_sme_set_rsn(struct ks_wlan_private *priv, int type)
 				       CIPHER_ID_WPA_WEP104, CIPHER_ID_LEN);
 			break;
 		}
-
-		hostif_mib_set_request(priv, DOT11_RSN_CONFIG_MULTICAST_CIPHER,
-				       MIB_VALUE_TYPE_OSTRING,
-				       &wpa_suite.suite[0][0], CIPHER_ID_LEN);
+		hostif_mib_set_request_ostring(priv,
+					       DOT11_RSN_CONFIG_MULTICAST_CIPHER,
+					       &wpa_suite.suite[0][0],
+					       CIPHER_ID_LEN);
 		break;
 	case SME_RSN_AUTH_REQUEST:
 		wpa_suite.size = cpu_to_le16((uint16_t)1);
@@ -1760,14 +1780,13 @@ void hostif_sme_set_rsn(struct ks_wlan_private *priv, int type)
 
 		size = sizeof(wpa_suite.size) +
 		       (KEY_MGMT_ID_LEN * le16_to_cpu(wpa_suite.size));
-		hostif_mib_set_request(priv, DOT11_RSN_CONFIG_AUTH_SUITE,
-				       MIB_VALUE_TYPE_OSTRING, &wpa_suite,
-				       size);
+		hostif_mib_set_request_ostring(priv,
+					       DOT11_RSN_CONFIG_AUTH_SUITE,
+					       &wpa_suite, size);
 		break;
 	case SME_RSN_ENABLED_REQUEST:
-		val = cpu_to_le32((uint32_t)(priv->wpa.rsn_enabled));
-		hostif_mib_set_request(priv, DOT11_RSN_ENABLED,
-				       MIB_VALUE_TYPE_BOOL, &val, sizeof(val));
+		hostif_mib_set_request_bool(priv, DOT11_RSN_ENABLED,
+					    priv->wpa.rsn_enabled);
 		break;
 	case SME_RSN_MODE_REQUEST:
 		if (priv->wpa.version == IW_AUTH_WPA_VERSION_WPA2) {
@@ -1783,9 +1802,8 @@ void hostif_sme_set_rsn(struct ks_wlan_private *priv, int type)
 			    cpu_to_le32((uint32_t)RSN_MODE_NONE);
 			rsn_mode.rsn_capability = cpu_to_le16((uint16_t)0);
 		}
-		hostif_mib_set_request(priv, LOCAL_RSN_MODE,
-				       MIB_VALUE_TYPE_OSTRING, &rsn_mode,
-				       sizeof(rsn_mode));
+		hostif_mib_set_request_ostring(priv, LOCAL_RSN_MODE,
+					       &rsn_mode, sizeof(rsn_mode));
 		break;
 	}
 }
@@ -1896,7 +1914,6 @@ void hostif_sme_multicast_set(struct ks_wlan_private *priv)
 	int mc_count;
 	struct netdev_hw_addr *ha;
 	char set_address[NIC_MAX_MCAST_LIST * ETH_ALEN];
-	__le32 filter_type;
 	int i = 0;
 
 	spin_lock(&priv->multicast_spin);
@@ -1904,19 +1921,15 @@ void hostif_sme_multicast_set(struct ks_wlan_private *priv)
 	memset(set_address, 0, NIC_MAX_MCAST_LIST * ETH_ALEN);
 
 	if (dev->flags & IFF_PROMISC) {
-		filter_type = cpu_to_le32((uint32_t)MCAST_FILTER_PROMISC);
-		hostif_mib_set_request(priv, LOCAL_MULTICAST_FILTER,
-				       MIB_VALUE_TYPE_BOOL,
-				       &filter_type, sizeof(filter_type));
+		hostif_mib_set_request_bool(priv, LOCAL_MULTICAST_FILTER,
+					    MCAST_FILTER_PROMISC);
 		goto spin_unlock;
 	}
 
 	if ((netdev_mc_count(dev) > NIC_MAX_MCAST_LIST) ||
 	    (dev->flags & IFF_ALLMULTI)) {
-		filter_type = cpu_to_le32((uint32_t)MCAST_FILTER_MCASTALL);
-		hostif_mib_set_request(priv, LOCAL_MULTICAST_FILTER,
-				       MIB_VALUE_TYPE_BOOL,
-				       &filter_type, sizeof(filter_type));
+		hostif_mib_set_request_bool(priv, LOCAL_MULTICAST_FILTER,
+					    MCAST_FILTER_MCASTALL);
 		goto spin_unlock;
 	}
 
@@ -1927,15 +1940,13 @@ void hostif_sme_multicast_set(struct ks_wlan_private *priv)
 			i++;
 		}
 		priv->sme_i.sme_flag &= ~SME_MULTICAST;
-		hostif_mib_set_request(priv, LOCAL_MULTICAST_ADDRESS,
-				       MIB_VALUE_TYPE_OSTRING,
-				       &set_address[0], ETH_ALEN * mc_count);
+		hostif_mib_set_request_ostring(priv, LOCAL_MULTICAST_ADDRESS,
+					       &set_address[0],
+					       ETH_ALEN * mc_count);
 	} else {
-		filter_type = cpu_to_le32((uint32_t)MCAST_FILTER_MCAST);
 		priv->sme_i.sme_flag |= SME_MULTICAST;
-		hostif_mib_set_request(priv, LOCAL_MULTICAST_FILTER,
-				       MIB_VALUE_TYPE_BOOL,
-				       &filter_type, sizeof(filter_type));
+		hostif_mib_set_request_bool(priv, LOCAL_MULTICAST_FILTER,
+					    MCAST_FILTER_MCAST);
 	}
 
 spin_unlock:
@@ -1987,60 +1998,53 @@ static void hostif_sme_sleep_set(struct ks_wlan_private *priv)
 static
 void hostif_sme_set_key(struct ks_wlan_private *priv, int type)
 {
-	__le32 val;
-
 	switch (type) {
 	case SME_SET_FLAG:
-		val = cpu_to_le32((uint32_t)(priv->reg.privacy_invoked));
-		hostif_mib_set_request(priv, DOT11_PRIVACY_INVOKED,
-				       MIB_VALUE_TYPE_BOOL, &val, sizeof(val));
+		hostif_mib_set_request_bool(priv, DOT11_PRIVACY_INVOKED,
+					    priv->reg.privacy_invoked);
 		break;
 	case SME_SET_TXKEY:
-		val = cpu_to_le32((uint32_t)(priv->wpa.txkey));
-		hostif_mib_set_request(priv, DOT11_WEP_DEFAULT_KEY_ID,
-				       MIB_VALUE_TYPE_INT, &val, sizeof(val));
+		hostif_mib_set_request_int(priv, DOT11_WEP_DEFAULT_KEY_ID,
+					   priv->wpa.txkey);
 		break;
 	case SME_SET_KEY1:
-		hostif_mib_set_request(priv, DOT11_WEP_DEFAULT_KEY_VALUE1,
-				       MIB_VALUE_TYPE_OSTRING,
-				       &priv->wpa.key[0].key_val[0],
-				       priv->wpa.key[0].key_len);
+		hostif_mib_set_request_ostring(priv,
+					       DOT11_WEP_DEFAULT_KEY_VALUE1,
+					       &priv->wpa.key[0].key_val[0],
+					       priv->wpa.key[0].key_len);
 		break;
 	case SME_SET_KEY2:
-		hostif_mib_set_request(priv, DOT11_WEP_DEFAULT_KEY_VALUE2,
-				       MIB_VALUE_TYPE_OSTRING,
-				       &priv->wpa.key[1].key_val[0],
-				       priv->wpa.key[1].key_len);
+		hostif_mib_set_request_ostring(priv,
+					       DOT11_WEP_DEFAULT_KEY_VALUE2,
+				               &priv->wpa.key[1].key_val[0],
+				               priv->wpa.key[1].key_len);
 		break;
 	case SME_SET_KEY3:
-		hostif_mib_set_request(priv, DOT11_WEP_DEFAULT_KEY_VALUE3,
-				       MIB_VALUE_TYPE_OSTRING,
-				       &priv->wpa.key[2].key_val[0],
-				       priv->wpa.key[2].key_len);
+		hostif_mib_set_request_ostring(priv,
+					       DOT11_WEP_DEFAULT_KEY_VALUE3,
+					       &priv->wpa.key[2].key_val[0],
+				               priv->wpa.key[2].key_len);
 		break;
 	case SME_SET_KEY4:
-		hostif_mib_set_request(priv, DOT11_WEP_DEFAULT_KEY_VALUE4,
-				       MIB_VALUE_TYPE_OSTRING,
-				       &priv->wpa.key[3].key_val[0],
-				       priv->wpa.key[3].key_len);
+		hostif_mib_set_request_ostring(priv,
+					       DOT11_WEP_DEFAULT_KEY_VALUE4,
+					       &priv->wpa.key[3].key_val[0],
+				               priv->wpa.key[3].key_len);
 		break;
 	case SME_SET_PMK_TSC:
-		hostif_mib_set_request(priv, DOT11_PMK_TSC,
-				       MIB_VALUE_TYPE_OSTRING,
-				       &priv->wpa.key[0].rx_seq[0],
-				       WPA_RX_SEQ_LEN);
+		hostif_mib_set_request_ostring(priv, DOT11_PMK_TSC,
+				               &priv->wpa.key[0].rx_seq[0],
+				               WPA_RX_SEQ_LEN);
 		break;
 	case SME_SET_GMK1_TSC:
-		hostif_mib_set_request(priv, DOT11_GMK1_TSC,
-				       MIB_VALUE_TYPE_OSTRING,
-				       &priv->wpa.key[1].rx_seq[0],
-				       WPA_RX_SEQ_LEN);
+		hostif_mib_set_request_ostring(priv, DOT11_GMK1_TSC,
+				               &priv->wpa.key[1].rx_seq[0],
+					       WPA_RX_SEQ_LEN);
 		break;
 	case SME_SET_GMK2_TSC:
-		hostif_mib_set_request(priv, DOT11_GMK2_TSC,
-				       MIB_VALUE_TYPE_OSTRING,
-				       &priv->wpa.key[2].rx_seq[0],
-				       WPA_RX_SEQ_LEN);
+		hostif_mib_set_request_ostring(priv, DOT11_GMK2_TSC,
+					       &priv->wpa.key[2].rx_seq[0],
+					       WPA_RX_SEQ_LEN);
 		break;
 	}
 }
@@ -2069,14 +2073,12 @@ void hostif_sme_set_pmksa(struct ks_wlan_private *priv)
 	pmkcache.size = cpu_to_le16((uint16_t)(priv->pmklist.size));
 	size = sizeof(priv->pmklist.size) +
 	       ((ETH_ALEN + IW_PMKID_LEN) * priv->pmklist.size);
-	hostif_mib_set_request(priv, LOCAL_PMK,
-			       MIB_VALUE_TYPE_OSTRING, &pmkcache, size);
+	hostif_mib_set_request_ostring(priv, LOCAL_PMK, &pmkcache, size);
 }
 
 /* execute sme */
 static void hostif_sme_execute(struct ks_wlan_private *priv, int event)
 {
-	__le32 val;
 	u16 failure;
 
 	switch (event) {
@@ -2088,9 +2090,8 @@ static void hostif_sme_execute(struct ks_wlan_private *priv, int event)
 		hostif_sme_multicast_set(priv);
 		break;
 	case SME_MACADDRESS_SET_REQUEST:
-		hostif_mib_set_request(priv, LOCAL_CURRENTADDRESS,
-				       MIB_VALUE_TYPE_OSTRING,
-				       &priv->eth_addr[0], ETH_ALEN);
+		hostif_mib_set_request_ostring(priv, LOCAL_CURRENTADDRESS,
+					       &priv->eth_addr[0], ETH_ALEN);
 		break;
 	case SME_BSS_SCAN_REQUEST:
 		hostif_bss_scan_request(priv, priv->reg.scan_type,
@@ -2133,14 +2134,12 @@ static void hostif_sme_execute(struct ks_wlan_private *priv, int event)
 		hostif_stop_request(priv);
 		break;
 	case SME_RTS_THRESHOLD_REQUEST:
-		val = cpu_to_le32((uint32_t)(priv->reg.rts));
-		hostif_mib_set_request(priv, DOT11_RTS_THRESHOLD,
-				       MIB_VALUE_TYPE_INT, &val, sizeof(val));
+		hostif_mib_set_request_int(priv, DOT11_RTS_THRESHOLD,
+					   priv->reg.rts);
 		break;
 	case SME_FRAGMENTATION_THRESHOLD_REQUEST:
-		val = cpu_to_le32((uint32_t)(priv->reg.fragment));
-		hostif_mib_set_request(priv, DOT11_FRAGMENTATION_THRESHOLD,
-				       MIB_VALUE_TYPE_INT, &val, sizeof(val));
+		hostif_mib_set_request_int(priv, DOT11_FRAGMENTATION_THRESHOLD,
+					   priv->reg.fragment);
 		break;
 	case SME_WEP_INDEX_REQUEST:
 	case SME_WEP_KEY1_REQUEST:
@@ -2172,23 +2171,19 @@ static void hostif_sme_execute(struct ks_wlan_private *priv, int event)
 		hostif_sme_set_pmksa(priv);
 		break;
 	case SME_WPS_ENABLE_REQUEST:
-		hostif_mib_set_request(priv, LOCAL_WPS_ENABLE,
-				       MIB_VALUE_TYPE_INT,
-				       &priv->wps.wps_enabled,
-				       sizeof(priv->wps.wps_enabled));
+		hostif_mib_set_request_int(priv, LOCAL_WPS_ENABLE,
+				           priv->wps.wps_enabled);
 		break;
 	case SME_WPS_PROBE_REQUEST:
-		hostif_mib_set_request(priv, LOCAL_WPS_PROBE_REQ,
-				       MIB_VALUE_TYPE_OSTRING, priv->wps.ie,
-				       priv->wps.ielen);
+		hostif_mib_set_request_ostring(priv, LOCAL_WPS_PROBE_REQ,
+					       priv->wps.ie, priv->wps.ielen);
 		break;
 	case SME_MODE_SET_REQUEST:
 		hostif_sme_mode_setup(priv);
 		break;
 	case SME_SET_GAIN:
-		hostif_mib_set_request(priv, LOCAL_GAIN,
-				       MIB_VALUE_TYPE_OSTRING, &priv->gain,
-				       sizeof(priv->gain));
+		hostif_mib_set_request_ostring(priv, LOCAL_GAIN,
+					       &priv->gain, sizeof(priv->gain));
 		break;
 	case SME_GET_GAIN:
 		hostif_mib_get_request(priv, LOCAL_GAIN);
@@ -2213,9 +2208,7 @@ static void hostif_sme_execute(struct ks_wlan_private *priv, int event)
 		hostif_sme_sleep_set(priv);
 		break;
 	case SME_SET_REGION:
-		val = cpu_to_le32((uint32_t)(priv->region));
-		hostif_mib_set_request(priv, LOCAL_REGION,
-				       MIB_VALUE_TYPE_INT, &val, sizeof(val));
+		hostif_mib_set_request_int(priv, LOCAL_REGION, priv->region);
 		break;
 	case SME_MULTICAST_CONFIRM:
 	case SME_BSS_SCAN_CONFIRM: