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Message-Id: <1384621429-24543-2-git-send-email-johannes@sipsolutions.net>
Date: Sat, 16 Nov 2013 18:03:42 +0100
From: Johannes Berg <johannes@...solutions.net>
To: netdev@...r.kernel.org
Cc: Johannes Berg <johannes.berg@...el.com>
Subject: [RFC 1/8] genetlink: only pass array to genl_register_family_with_ops()
From: Johannes Berg <johannes.berg@...el.com>
As suggested by David Miller, make genl_register_family_with_ops()
a macro and pass only the array, evaluating ARRAY_SIZE() in the
macro, this is a little safer.
The openvswitch has some indirection, assing ops/n_ops directly in
that code. This might ultimately just assign the pointers in the
family initializations, saving the struct genl_family_and_ops and
code (once mcast groups are handled differently.)
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
---
drivers/net/team/team.c | 3 +--
drivers/net/wireless/mac80211_hwsim.c | 3 +--
fs/dlm/netlink.c | 10 ++++++----
include/linux/genl_magic_func.h | 3 +--
include/net/genetlink.h | 8 ++++++--
kernel/taskstats.c | 3 +--
net/core/drop_monitor.c | 3 +--
net/hsr/hsr_netlink.c | 3 +--
net/ieee802154/netlink.c | 3 +--
net/ipv4/tcp_metrics.c | 3 +--
net/irda/irnetlink.c | 3 +--
net/l2tp/l2tp_netlink.c | 7 +------
net/netfilter/ipvs/ip_vs_ctl.c | 2 +-
net/netlabel/netlabel_cipso_v4.c | 2 +-
net/netlabel/netlabel_mgmt.c | 2 +-
net/netlabel/netlabel_unlabeled.c | 2 +-
net/netlink/genetlink.c | 14 ++++++++------
net/nfc/netlink.c | 3 +--
net/openvswitch/datapath.c | 5 +++--
net/tipc/netlink.c | 11 ++++++-----
net/wimax/stack.c | 4 ++--
net/wireless/nl80211.c | 3 +--
22 files changed, 47 insertions(+), 53 deletions(-)
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 6390254..f55758b 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2699,8 +2699,7 @@ static int team_nl_init(void)
{
int err;
- err = genl_register_family_with_ops(&team_nl_family, team_nl_ops,
- ARRAY_SIZE(team_nl_ops));
+ err = genl_register_family_with_ops(&team_nl_family, team_nl_ops);
if (err)
return err;
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index cfc3fda..9df7bc9 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2148,8 +2148,7 @@ static int hwsim_init_netlink(void)
printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
- rc = genl_register_family_with_ops(&hwsim_genl_family,
- hwsim_ops, ARRAY_SIZE(hwsim_ops));
+ rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops);
if (rc)
goto failure;
diff --git a/fs/dlm/netlink.c b/fs/dlm/netlink.c
index 60a3278..e7cfbaf 100644
--- a/fs/dlm/netlink.c
+++ b/fs/dlm/netlink.c
@@ -74,14 +74,16 @@ static int user_cmd(struct sk_buff *skb, struct genl_info *info)
return 0;
}
-static struct genl_ops dlm_nl_ops = {
- .cmd = DLM_CMD_HELLO,
- .doit = user_cmd,
+static struct genl_ops dlm_nl_ops[] = {
+ {
+ .cmd = DLM_CMD_HELLO,
+ .doit = user_cmd,
+ },
};
int __init dlm_netlink_init(void)
{
- return genl_register_family_with_ops(&family, &dlm_nl_ops, 1);
+ return genl_register_family_with_ops(&family, dlm_nl_ops);
}
void dlm_netlink_exit(void)
diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
index 023bc34..4708603 100644
--- a/include/linux/genl_magic_func.h
+++ b/include/linux/genl_magic_func.h
@@ -293,8 +293,7 @@ static int CONCAT_(GENL_MAGIC_FAMILY, _genl_multicast_ ## group)( \
int CONCAT_(GENL_MAGIC_FAMILY, _genl_register)(void)
{
- int err = genl_register_family_with_ops(&ZZZ_genl_family,
- ZZZ_genl_ops, ARRAY_SIZE(ZZZ_genl_ops));
+ int err = genl_register_family_with_ops(&ZZZ_genl_family, ZZZ_genl_ops);
if (err)
return err;
#undef GENL_mc_group
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index e96385d..9bd52a4c 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -152,8 +152,9 @@ static inline int genl_register_family(struct genl_family *family)
*
* Return 0 on success or a negative error code.
*/
-static inline int genl_register_family_with_ops(struct genl_family *family,
- const struct genl_ops *ops, size_t n_ops)
+static inline int _genl_register_family_with_ops(struct genl_family *family,
+ const struct genl_ops *ops,
+ size_t n_ops)
{
family->module = THIS_MODULE;
family->ops = ops;
@@ -161,6 +162,9 @@ static inline int genl_register_family_with_ops(struct genl_family *family,
return __genl_register_family(family);
}
+#define genl_register_family_with_ops(family, ops) \
+ _genl_register_family_with_ops((family), (ops), ARRAY_SIZE(ops))
+
int genl_unregister_family(struct genl_family *family);
int genl_register_mc_group(struct genl_family *family,
struct genl_multicast_group *grp);
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 76595cd..13d2f7c 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -703,8 +703,7 @@ static int __init taskstats_init(void)
{
int rc;
- rc = genl_register_family_with_ops(&family, taskstats_ops,
- ARRAY_SIZE(taskstats_ops));
+ rc = genl_register_family_with_ops(&family, taskstats_ops);
if (rc)
return rc;
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index f9fe2f2..0efc502 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -365,8 +365,7 @@ static int __init init_net_drop_monitor(void)
}
rc = genl_register_family_with_ops(&net_drop_monitor_family,
- dropmon_ops,
- ARRAY_SIZE(dropmon_ops));
+ dropmon_ops);
if (rc) {
pr_err("Could not create drop monitor netlink family\n");
return rc;
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index 3b9205d..f182260 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -414,8 +414,7 @@ int __init hsr_netlink_init(void)
if (rc)
goto fail_rtnl_link_register;
- rc = genl_register_family_with_ops(&hsr_genl_family, hsr_ops,
- ARRAY_SIZE(hsr_ops));
+ rc = genl_register_family_with_ops(&hsr_genl_family, hsr_ops);
if (rc)
goto fail_genl_register_family;
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index 3ffcdbb..1a81709 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -129,8 +129,7 @@ int __init ieee802154_nl_init(void)
{
int rc;
- rc = genl_register_family_with_ops(&nl802154_family, ieee8021154_ops,
- ARRAY_SIZE(ieee8021154_ops));
+ rc = genl_register_family_with_ops(&nl802154_family, ieee8021154_ops);
if (rc)
return rc;
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 8c121b5..0649373 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -1082,8 +1082,7 @@ void __init tcp_metrics_init(void)
if (ret < 0)
goto cleanup;
ret = genl_register_family_with_ops(&tcp_metrics_nl_family,
- tcp_metrics_nl_ops,
- ARRAY_SIZE(tcp_metrics_nl_ops));
+ tcp_metrics_nl_ops);
if (ret < 0)
goto cleanup_subsys;
return;
diff --git a/net/irda/irnetlink.c b/net/irda/irnetlink.c
index bf5d7d4..a37b81f 100644
--- a/net/irda/irnetlink.c
+++ b/net/irda/irnetlink.c
@@ -149,8 +149,7 @@ static const struct genl_ops irda_nl_ops[] = {
int irda_nl_register(void)
{
- return genl_register_family_with_ops(&irda_nl_family,
- irda_nl_ops, ARRAY_SIZE(irda_nl_ops));
+ return genl_register_family_with_ops(&irda_nl_family, irda_nl_ops);
}
void irda_nl_unregister(void)
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index 57db66e..4cfd722 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -887,13 +887,8 @@ EXPORT_SYMBOL_GPL(l2tp_nl_unregister_ops);
static int l2tp_nl_init(void)
{
- int err;
-
pr_info("L2TP netlink interface\n");
- err = genl_register_family_with_ops(&l2tp_nl_family, l2tp_nl_ops,
- ARRAY_SIZE(l2tp_nl_ops));
-
- return err;
+ return genl_register_family_with_ops(&l2tp_nl_family, l2tp_nl_ops);
}
static void l2tp_nl_cleanup(void)
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index fc8a04e..3934987 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -3666,7 +3666,7 @@ static const struct genl_ops ip_vs_genl_ops[] __read_mostly = {
static int __init ip_vs_genl_register(void)
{
return genl_register_family_with_ops(&ip_vs_genl_family,
- ip_vs_genl_ops, ARRAY_SIZE(ip_vs_genl_ops));
+ ip_vs_genl_ops);
}
static void ip_vs_genl_unregister(void)
diff --git a/net/netlabel/netlabel_cipso_v4.c b/net/netlabel/netlabel_cipso_v4.c
index 7066917..69345ce 100644
--- a/net/netlabel/netlabel_cipso_v4.c
+++ b/net/netlabel/netlabel_cipso_v4.c
@@ -783,5 +783,5 @@ static const struct genl_ops netlbl_cipsov4_ops[] = {
int __init netlbl_cipsov4_genl_init(void)
{
return genl_register_family_with_ops(&netlbl_cipsov4_gnl_family,
- netlbl_cipsov4_ops, ARRAY_SIZE(netlbl_cipsov4_ops));
+ netlbl_cipsov4_ops);
}
diff --git a/net/netlabel/netlabel_mgmt.c b/net/netlabel/netlabel_mgmt.c
index 7de6f66..8ef83ee 100644
--- a/net/netlabel/netlabel_mgmt.c
+++ b/net/netlabel/netlabel_mgmt.c
@@ -779,5 +779,5 @@ static const struct genl_ops netlbl_mgmt_genl_ops[] = {
int __init netlbl_mgmt_genl_init(void)
{
return genl_register_family_with_ops(&netlbl_mgmt_gnl_family,
- netlbl_mgmt_genl_ops, ARRAY_SIZE(netlbl_mgmt_genl_ops));
+ netlbl_mgmt_genl_ops);
}
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index 76ee925..43817d7 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -1397,7 +1397,7 @@ static const struct genl_ops netlbl_unlabel_genl_ops[] = {
int __init netlbl_unlabel_genl_init(void)
{
return genl_register_family_with_ops(&netlbl_unlabel_gnl_family,
- netlbl_unlabel_genl_ops, ARRAY_SIZE(netlbl_unlabel_genl_ops));
+ netlbl_unlabel_genl_ops);
}
/*
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index f07eb56..2b57aee 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -906,11 +906,13 @@ static int genl_ctrl_event(int event, void *data)
return 0;
}
-static struct genl_ops genl_ctrl_ops = {
- .cmd = CTRL_CMD_GETFAMILY,
- .doit = ctrl_getfamily,
- .dumpit = ctrl_dumpfamily,
- .policy = ctrl_policy,
+static struct genl_ops genl_ctrl_ops[] = {
+ {
+ .cmd = CTRL_CMD_GETFAMILY,
+ .doit = ctrl_getfamily,
+ .dumpit = ctrl_dumpfamily,
+ .policy = ctrl_policy,
+ },
};
static struct genl_multicast_group notify_grp = {
@@ -954,7 +956,7 @@ static int __init genl_init(void)
for (i = 0; i < GENL_FAM_TAB_SIZE; i++)
INIT_LIST_HEAD(&family_ht[i]);
- err = genl_register_family_with_ops(&genl_ctrl, &genl_ctrl_ops, 1);
+ err = genl_register_family_with_ops(&genl_ctrl, genl_ctrl_ops);
if (err < 0)
goto problem;
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index f558561..fe6760d 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -1536,8 +1536,7 @@ int __init nfc_genl_init(void)
{
int rc;
- rc = genl_register_family_with_ops(&nfc_genl_family, nfc_genl_ops,
- ARRAY_SIZE(nfc_genl_ops));
+ rc = genl_register_family_with_ops(&nfc_genl_family, nfc_genl_ops);
if (rc)
return rc;
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 91e1c92..8ec8b73 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -1817,8 +1817,9 @@ static int dp_register_genl(void)
for (i = 0; i < ARRAY_SIZE(dp_genl_families); i++) {
const struct genl_family_and_ops *f = &dp_genl_families[i];
- err = genl_register_family_with_ops(f->family, f->ops,
- f->n_ops);
+ f->family->ops = f->ops;
+ f->family->n_ops = f->n_ops;
+ err = genl_register_family(f->family);
if (err)
goto error;
n_registered++;
diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c
index 8bcd498..9f72a63 100644
--- a/net/tipc/netlink.c
+++ b/net/tipc/netlink.c
@@ -76,9 +76,11 @@ static struct genl_family tipc_genl_family = {
.maxattr = 0,
};
-static struct genl_ops tipc_genl_ops = {
- .cmd = TIPC_GENL_CMD,
- .doit = handle_cmd,
+static struct genl_ops tipc_genl_ops[] = {
+ {
+ .cmd = TIPC_GENL_CMD,
+ .doit = handle_cmd,
+ },
};
static int tipc_genl_family_registered;
@@ -87,8 +89,7 @@ int tipc_netlink_start(void)
{
int res;
- res = genl_register_family_with_ops(&tipc_genl_family,
- &tipc_genl_ops, 1);
+ res = genl_register_family_with_ops(&tipc_genl_family, tipc_genl_ops);
if (res) {
pr_err("Failed to register netlink interface\n");
return res;
diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index 47170c9..6328afe 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -597,8 +597,8 @@ int __init wimax_subsys_init(void)
snprintf(wimax_gnl_family.name, sizeof(wimax_gnl_family.name),
"WiMAX");
- result = genl_register_family_with_ops(&wimax_gnl_family, wimax_gnl_ops,
- ARRAY_SIZE(wimax_gnl_ops));
+ result = genl_register_family_with_ops(&wimax_gnl_family,
+ wimax_gnl_ops);
if (unlikely(result < 0)) {
printk(KERN_ERR "cannot register generic netlink family: %d\n",
result);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 58c43c8..1b6c5dd 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -11329,8 +11329,7 @@ int nl80211_init(void)
{
int err;
- err = genl_register_family_with_ops(&nl80211_fam,
- nl80211_ops, ARRAY_SIZE(nl80211_ops));
+ err = genl_register_family_with_ops(&nl80211_fam, nl80211_ops);
if (err)
return err;
--
1.8.4.rc3
--
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