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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2009-05-19 15:27:55 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-05-19 15:36:16 -0700 |
| commit | fd2120ca0da9108e53f8db2fe57ab74fca76fd56 (patch) | |
| tree | 814d647ba22780f741caa119c7c4a81f81bb3695 /net | |
| parent | e5488ce56995e987a0cf9689e190b712a616a980 (diff) | |
| download | linux-3.10-fd2120ca0da9108e53f8db2fe57ab74fca76fd56.tar.gz linux-3.10-fd2120ca0da9108e53f8db2fe57ab74fca76fd56.tar.bz2 linux-3.10-fd2120ca0da9108e53f8db2fe57ab74fca76fd56.zip | |
net: use NLMSG_DEFAULT_SIZE in nlmsg_new() allocations
nlmsg_new() adds the size of the netlink header to the value
that has been passed as parameter. If NLMSG_GOODSIZE is selected,
we request an allocation of one memory page plus the size of the
header. Instead, NLMSG_DEFAULT_SIZE should be used since it
already substracts the size of the Netlink header.
I have the impression that the similar naming in both constant
is error prone when using it with nlmsg_new(). This is already
documented in include/net/netlink.h
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/irda/irnetlink.c | 2 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 32 |
2 files changed, 17 insertions, 17 deletions
diff --git a/net/irda/irnetlink.c b/net/irda/irnetlink.c index 2f05ec1037a..82c6118d82c 100644 --- a/net/irda/irnetlink.c +++ b/net/irda/irnetlink.c @@ -87,7 +87,7 @@ static int irda_nl_get_mode(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) { dev_put(dev); return -ENOMEM; diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index f0fec2f4982..ade40d503bf 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -388,7 +388,7 @@ static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) if (IS_ERR(dev)) return PTR_ERR(dev); - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) goto out_err; @@ -716,7 +716,7 @@ static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) if (err) return err; - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) goto out_err; @@ -989,7 +989,7 @@ static int nl80211_get_key(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) { err = -ENOMEM; goto out; @@ -1600,7 +1600,7 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) if (err) goto out; - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) goto out; @@ -1994,7 +1994,7 @@ static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) if (err) goto out; - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) goto out; @@ -2310,7 +2310,7 @@ static int nl80211_get_mesh_params(struct sk_buff *skb, goto out; /* Draw up a netlink message to send back */ - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) { err = -ENOBUFS; goto out; @@ -2488,7 +2488,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) if (!cfg80211_regdomain) goto out; - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) { err = -ENOBUFS; goto out; @@ -3541,7 +3541,7 @@ void nl80211_notify_dev_rename(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; @@ -3582,7 +3582,7 @@ void nl80211_send_scan_done(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; @@ -3600,7 +3600,7 @@ void nl80211_send_scan_aborted(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; @@ -3622,7 +3622,7 @@ void nl80211_send_reg_change_event(struct regulatory_request *request) struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) return; @@ -3676,7 +3676,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); if (!msg) return; @@ -3739,7 +3739,7 @@ static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); if (!msg) return; @@ -3787,7 +3787,7 @@ void nl80211_send_ibss_bssid(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; @@ -3822,7 +3822,7 @@ void nl80211_michael_mic_failure(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; @@ -3862,7 +3862,7 @@ void nl80211_send_beacon_hint_event(struct wiphy *wiphy, void *hdr; struct nlattr *nl_freq; - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); if (!msg) return; |