net: Use NLMSG_DEFAULT_SIZE in combination with nlmsg_new()

Using NLMSG_GOODSIZE results in multiple pages being used as
nlmsg_new() will automatically add the size of the netlink
header to the payload thus exceeding the page limit.

NLMSG_DEFAULT_SIZE takes this into account.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Cc: Jiri Pirko <jpirko@redhat.com>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Sergey Lapin <slapin@ossfans.org>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Reviewed-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 29 insertions, 29 deletions

diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index c8097ae..97351e1 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -44,7 +44,7 @@ struct genl_family nl802154_family = {
 struct sk_buff *ieee802154_nl_create(int flags, u8 req)
 {
 	void *hdr;
-	struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+	struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
 	unsigned long f;
 
 	if (!msg)
@@ -80,7 +80,7 @@ struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
 		int flags, u8 req)
 {
 	void *hdr;
-	struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+	struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
 
 	if (!msg)
 		return NULL;
diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c
index ca92587..1e99171 100644
--- a/net/ieee802154/nl-mac.c
+++ b/net/ieee802154/nl-mac.c
@@ -530,7 +530,7 @@ static int ieee802154_list_iface(struct sk_buff *skb,
 	if (!dev)
 		return -ENODEV;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		goto out_dev;
 
diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c
index eed2916..d54be34 100644
--- a/net/ieee802154/nl-phy.c
+++ b/net/ieee802154/nl-phy.c
@@ -101,7 +101,7 @@ static int ieee802154_list_phy(struct sk_buff *skb,
 	if (!phy)
 		return -ENODEV;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		goto out_dev;
 
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index ddc553e..d71cd92 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -72,7 +72,7 @@ static int l2tp_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info)
 	void *hdr;
 	int ret = -ENOBUFS;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg) {
 		ret = -ENOMEM;
 		goto out;
@@ -353,7 +353,7 @@ static int l2tp_nl_cmd_tunnel_get(struct sk_buff *skb, struct genl_info *info)
 		goto out;
 	}
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg) {
 		ret = -ENOMEM;
 		goto out;
@@ -699,7 +699,7 @@ static int l2tp_nl_cmd_session_get(struct sk_buff *skb, struct genl_info *info)
 		goto out;
 	}
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg) {
 		ret = -ENOMEM;
 		goto out;
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 03c31db..f4f07f9 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -167,7 +167,7 @@ int nfc_genl_targets_found(struct nfc_dev *dev)
 
 	dev->genl_data.poll_req_pid = 0;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
 	if (!msg)
 		return -ENOMEM;
 
@@ -195,7 +195,7 @@ int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx)
 	struct sk_buff *msg;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return -ENOMEM;
 
@@ -226,7 +226,7 @@ int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol)
 	struct sk_buff *msg;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return -ENOMEM;
 
@@ -258,7 +258,7 @@ int nfc_genl_tm_deactivated(struct nfc_dev *dev)
 	struct sk_buff *msg;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return -ENOMEM;
 
@@ -288,7 +288,7 @@ int nfc_genl_device_added(struct nfc_dev *dev)
 	struct sk_buff *msg;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return -ENOMEM;
 
@@ -321,7 +321,7 @@ int nfc_genl_device_removed(struct nfc_dev *dev)
 	struct sk_buff *msg;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return -ENOMEM;
 
@@ -434,7 +434,7 @@ int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
 
 	pr_debug("DEP link is up\n");
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
 	if (!msg)
 		return -ENOMEM;
 
@@ -473,7 +473,7 @@ int nfc_genl_dep_link_down_event(struct nfc_dev *dev)
 
 	pr_debug("DEP link is down\n");
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
 	if (!msg)
 		return -ENOMEM;
 
@@ -514,7 +514,7 @@ static int nfc_genl_get_device(struct sk_buff *skb, struct genl_info *info)
 	if (!dev)
 		return -ENODEV;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg) {
 		rc = -ENOMEM;
 		goto out_putdev;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 7ae54b8..cbdc0fd 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -7210,7 +7210,7 @@ void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
 {
 	struct sk_buff *msg;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return;
 
@@ -7286,7 +7286,7 @@ void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
 {
 	struct sk_buff *msg;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return;
 
@@ -7502,7 +7502,7 @@ void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
 	struct sk_buff *msg;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
 		return;
 
@@ -7542,7 +7542,7 @@ void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
 	struct sk_buff *msg;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
 		return;
 
@@ -7580,7 +7580,7 @@ void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
 	struct sk_buff *msg;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return;
 
@@ -7842,7 +7842,7 @@ void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
 {
 	struct sk_buff *msg;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
 		return;
 
@@ -7863,7 +7863,7 @@ void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
 	struct sk_buff *msg;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
 		return;
 
@@ -8026,7 +8026,7 @@ nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
 	struct nlattr *pinfoattr;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
 		return;
 
@@ -8069,7 +8069,7 @@ void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
 	struct nlattr *rekey_attr;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
 		return;
 
@@ -8113,7 +8113,7 @@ void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
 	struct nlattr *attr;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
 		return;
 
@@ -8157,7 +8157,7 @@ void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
 	struct sk_buff *msg;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
 		return;
 
@@ -8192,7 +8192,7 @@ nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
 	struct nlattr *pinfoattr;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
 		return;
 
@@ -8236,7 +8236,7 @@ void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
 	void *hdr;
 	int err;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
 		return;