openwrt/package/kernel/mac80211/patches/007-revert-genetlink-changes.patch

--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -32,8 +32,22 @@ static int nl80211_crypto_settings(struc
 				   struct cfg80211_crypto_settings *settings,
 				   int cipher_limit);
 
+static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
+			    struct genl_info *info);
+static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
+			      struct genl_info *info);
+
 /* the netlink family */
-static struct genl_family nl80211_fam;
+static struct genl_family nl80211_fam = {
+	.id = GENL_ID_GENERATE,		/* don't bother with a hardcoded ID */
+	.name = NL80211_GENL_NAME,	/* have users key off the name instead */
+	.hdrsize = 0,			/* no private header */
+	.version = 1,			/* no particular meaning now */
+	.maxattr = NL80211_ATTR_MAX,
+	.netnsok = true,
+	.pre_doit = nl80211_pre_doit,
+	.post_doit = nl80211_post_doit,
+};
 
 /* multicast groups */
 enum nl80211_multicast_groups {
@@ -549,14 +563,13 @@ static int nl80211_prepare_wdev_dump(str
 
 	if (!cb->args[0]) {
 		err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
-				  genl_family_attrbuf(&nl80211_fam),
-				  nl80211_fam.maxattr, nl80211_policy);
+				  nl80211_fam.attrbuf, nl80211_fam.maxattr,
+				  nl80211_policy);
 		if (err)
 			goto out_unlock;
 
-		*wdev = __cfg80211_wdev_from_attrs(
-					sock_net(skb->sk),
-					genl_family_attrbuf(&nl80211_fam));
+		*wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
+						   nl80211_fam.attrbuf);
 		if (IS_ERR(*wdev)) {
 			err = PTR_ERR(*wdev);
 			goto out_unlock;
@@ -1903,7 +1916,7 @@ static int nl80211_dump_wiphy_parse(stru
 				    struct netlink_callback *cb,
 				    struct nl80211_dump_wiphy_state *state)
 {
-	struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
+	struct nlattr **tb = nl80211_fam.attrbuf;
 	int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
 			      tb, nl80211_fam.maxattr, nl80211_policy);
 	/* ignore parse errors for backward compatibility */
@@ -7733,7 +7746,6 @@ static int nl80211_send_survey(struct sk
 
 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
 {
-	struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
 	struct survey_info survey;
 	struct cfg80211_registered_device *rdev;
 	struct wireless_dev *wdev;
@@ -7746,7 +7758,7 @@ static int nl80211_dump_survey(struct sk
 		return res;
 
 	/* prepare_wdev_dump parsed the attributes */
-	radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
+	radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
 
 	if (!wdev->netdev) {
 		res = -EINVAL;
@@ -8594,14 +8606,14 @@ static int nl80211_testmode_dump(struct
 		 */
 		phy_idx = cb->args[0] - 1;
 	} else {
-		struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
-
 		err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
-				  attrbuf, nl80211_fam.maxattr, nl80211_policy);
+				  nl80211_fam.attrbuf, nl80211_fam.maxattr,
+				  nl80211_policy);
 		if (err)
 			goto out_err;
 
-		rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
+		rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
+						  nl80211_fam.attrbuf);
 		if (IS_ERR(rdev)) {
 			err = PTR_ERR(rdev);
 			goto out_err;
@@ -8609,8 +8621,9 @@ static int nl80211_testmode_dump(struct
 		phy_idx = rdev->wiphy_idx;
 		rdev = NULL;
 
-		if (attrbuf[NL80211_ATTR_TESTDATA])
-			cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
+		if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
+			cb->args[1] =
+				(long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
 	}
 
 	if (cb->args[1]) {
@@ -10814,7 +10827,8 @@ static int handle_nan_filter(struct nlat
 
 	i = 0;
 	nla_for_each_nested(attr, attr_filter, rem) {
-		filter[i].filter = nla_memdup(attr, GFP_KERNEL);
+		filter[i].filter = kmemdup(nla_data(attr), nla_len(attr),
+					   GFP_KERNEL);
 		filter[i].len = nla_len(attr);
 		i++;
 	}
@@ -11450,7 +11464,6 @@ static int nl80211_prepare_vendor_dump(s
 				       struct cfg80211_registered_device **rdev,
 				       struct wireless_dev **wdev)
 {
-	struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
 	u32 vid, subcmd;
 	unsigned int i;
 	int vcmd_idx = -1;
@@ -11486,28 +11499,31 @@ static int nl80211_prepare_vendor_dump(s
 	}
 
 	err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
-			  attrbuf, nl80211_fam.maxattr, nl80211_policy);
+			  nl80211_fam.attrbuf, nl80211_fam.maxattr,
+			  nl80211_policy);
 	if (err)
 		goto out_unlock;
 
-	if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
-	    !attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
+	if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
+	    !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
 		err = -EINVAL;
 		goto out_unlock;
 	}
 
-	*wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
+	*wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
+					   nl80211_fam.attrbuf);
 	if (IS_ERR(*wdev))
 		*wdev = NULL;
 
-	*rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
+	*rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
+					   nl80211_fam.attrbuf);
 	if (IS_ERR(*rdev)) {
 		err = PTR_ERR(*rdev);
 		goto out_unlock;
 	}
 
-	vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
-	subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
+	vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
+	subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
 
 	for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
 		const struct wiphy_vendor_command *vcmd;
@@ -11531,9 +11547,9 @@ static int nl80211_prepare_vendor_dump(s
 		goto out_unlock;
 	}
 
-	if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
-		data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
-		data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
+	if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
+		data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
+		data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
 	}
 
 	/* 0 is the first index - add 1 to parse only once */
@@ -12795,21 +12811,6 @@ static __genl_const struct genl_ops nl80
 	},
 };
 
-static struct genl_family nl80211_fam __ro_after_init = {
-	.name = NL80211_GENL_NAME,	/* have users key off the name instead */
-	.hdrsize = 0,			/* no private header */
-	.version = 1,			/* no particular meaning now */
-	.maxattr = NL80211_ATTR_MAX,
-	.netnsok = true,
-	.pre_doit = nl80211_pre_doit,
-	.post_doit = nl80211_post_doit,
-	.module = THIS_MODULE,
-	.ops = nl80211_ops,
-	.n_ops = ARRAY_SIZE(nl80211_ops),
-	.mcgrps = nl80211_mcgrps,
-	.n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
-};
-
 /* notification functions */
 
 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
@@ -14759,11 +14760,12 @@ void nl80211_send_ap_stopped(struct wire
 
 /* initialisation/exit functions */
 
-int __init nl80211_init(void)
+int nl80211_init(void)
 {
 	int err;
 
-	err = genl_register_family(&nl80211_fam);
+	err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
+						   nl80211_mcgrps);
 	if (err)
 		return err;
 
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -587,8 +587,15 @@ struct hwsim_radiotap_ack_hdr {
 	__le16 rt_chbitmask;
 } __packed;
 
-/* MAC80211_HWSIM netlink family */
-static struct genl_family hwsim_genl_family;
+/* MAC80211_HWSIM netlinf family */
+static struct genl_family hwsim_genl_family = {
+	.id = GENL_ID_GENERATE,
+	.hdrsize = 0,
+	.name = "MAC80211_HWSIM",
+	.version = 1,
+	.maxattr = HWSIM_ATTR_MAX,
+	.netnsok = true,
+};
 
 enum hwsim_multicast_groups {
 	HWSIM_MCGRP_CONFIG,
@@ -3250,18 +3257,6 @@ static __genl_const struct genl_ops hwsi
 	},
 };
 
-static struct genl_family hwsim_genl_family __ro_after_init = {
-	.name = "MAC80211_HWSIM",
-	.version = 1,
-	.maxattr = HWSIM_ATTR_MAX,
-	.netnsok = true,
-	.module = THIS_MODULE,
-	.ops = hwsim_ops,
-	.n_ops = ARRAY_SIZE(hwsim_ops),
-	.mcgrps = hwsim_mcgrps,
-	.n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
-};
-
 static void destroy_radio(struct work_struct *work)
 {
 	struct mac80211_hwsim_data *data =
@@ -3309,13 +3304,15 @@ static struct notifier_block hwsim_netli
 	.notifier_call = mac80211_hwsim_netlink_notify,
 };
 
-static int __init hwsim_init_netlink(void)
+static int hwsim_init_netlink(void)
 {
 	int rc;
 
 	printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
 
-	rc = genl_register_family(&hwsim_genl_family);
+	rc = genl_register_family_with_ops_groups(&hwsim_genl_family,
+						  hwsim_ops,
+						  hwsim_mcgrps);
 	if (rc)
 		goto failure;