net_sched: act: move idx_gen into struct tcf_hashinfo

There is no need to store the index separatedly
since tcf_hashinfo is allocated statically too.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 files changed, 14 insertions, 23 deletions

diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index f63e1467cd3a..74ae3ff05747 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -173,16 +173,16 @@ struct tcf_common *tcf_hash_lookup(u32 index, struct tcf_hashinfo *hinfo)
 }
 EXPORT_SYMBOL(tcf_hash_lookup);
 
-u32 tcf_hash_new_index(u32 *idx_gen, struct tcf_hashinfo *hinfo)
+u32 tcf_hash_new_index(struct tcf_hashinfo *hinfo)
 {
-        u32 val = *idx_gen;
+        u32 val = hinfo->index;
 
         do {
                 if (++val == 0)
                         val = 1;
         } while (tcf_hash_lookup(val, hinfo));
 
-        *idx_gen = val;
+        hinfo->index = val;
         return val;
 }
 EXPORT_SYMBOL(tcf_hash_new_index);
@@ -215,7 +215,7 @@ EXPORT_SYMBOL(tcf_hash_check);
 
 struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
                                    struct tc_action *a, int size, int bind,
-                                   u32 *idx_gen, struct tcf_hashinfo *hinfo)
+                                   struct tcf_hashinfo *hinfo)
 {
         struct tcf_common *p = kzalloc(size, GFP_KERNEL);
 
@@ -227,7 +227,7 @@ struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
 
         spin_lock_init(&p->tcfc_lock);
         INIT_HLIST_NODE(&p->tcfc_head);
-        p->tcfc_index = index ? index : tcf_hash_new_index(idx_gen, hinfo);
+        p->tcfc_index = index ? index : tcf_hash_new_index(hinfo);
         p->tcfc_tm.install = jiffies;
         p->tcfc_tm.lastuse = jiffies;
         if (est) {
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index 8b1d65772a8d..ee28e1ccbbd5 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -37,7 +37,6 @@
 #include <net/tc_act/tc_csum.h>
 
 #define CSUM_TAB_MASK 15
-static u32 csum_idx_gen;
 static struct tcf_hashinfo csum_hash_info;
 
 static const struct nla_policy csum_policy[TCA_CSUM_MAX + 1] = {
@@ -67,7 +66,7 @@ static int tcf_csum_init(struct net *n, struct nlattr *nla, struct nlattr *est,
         pc = tcf_hash_check(parm->index, a, bind, &csum_hash_info);
         if (!pc) {
                 pc = tcf_hash_create(parm->index, est, a, sizeof(*p), bind,
-                                     &csum_idx_gen, &csum_hash_info);
+                                     &csum_hash_info);
                 if (IS_ERR(pc))
                         return PTR_ERR(pc);
                 ret = ACT_P_CREATED;
diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
index af5641c290fa..f26e6b890cc7 100644
--- a/net/sched/act_gact.c
+++ b/net/sched/act_gact.c
@@ -24,7 +24,6 @@
 #include <net/tc_act/tc_gact.h>
 
 #define GACT_TAB_MASK   15
-static u32 gact_idx_gen;
 static struct tcf_hashinfo gact_hash_info;
 
 #ifdef CONFIG_GACT_PROB
@@ -90,7 +89,7 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla,
         pc = tcf_hash_check(parm->index, a, bind, &gact_hash_info);
         if (!pc) {
                 pc = tcf_hash_create(parm->index, est, a, sizeof(*gact),
-                                     bind, &gact_idx_gen, &gact_hash_info);
+                                     bind, &gact_hash_info);
                 if (IS_ERR(pc))
                         return PTR_ERR(pc);
                 ret = ACT_P_CREATED;
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 242636950ea5..484bd19601e3 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -29,7 +29,6 @@
 
 
 #define IPT_TAB_MASK     15
-static u32 ipt_idx_gen;
 static struct tcf_hashinfo ipt_hash_info;
 
 static int ipt_init_target(struct xt_entry_target *t, char *table, unsigned int hook)
@@ -129,7 +128,7 @@ static int tcf_ipt_init(struct net *net, struct nlattr *nla, struct nlattr *est,
         pc = tcf_hash_check(index, a, bind, &ipt_hash_info);
         if (!pc) {
                 pc = tcf_hash_create(index, est, a, sizeof(*ipt), bind,
-                                     &ipt_idx_gen, &ipt_hash_info);
+                                     &ipt_hash_info);
                 if (IS_ERR(pc))
                         return PTR_ERR(pc);
                 ret = ACT_P_CREATED;
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 9dbb8cd64cb0..5d05b573a622 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -30,7 +30,6 @@
 #include <linux/if_arp.h>
 
 #define MIRRED_TAB_MASK     7
-static u32 mirred_idx_gen;
 static LIST_HEAD(mirred_list);
 static struct tcf_hashinfo mirred_hash_info;
 
@@ -107,7 +106,7 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
                 if (dev == NULL)
                         return -EINVAL;
                 pc = tcf_hash_create(parm->index, est, a, sizeof(*m), bind,
-                                     &mirred_idx_gen, &mirred_hash_info);
+                                     &mirred_hash_info);
                 if (IS_ERR(pc))
                         return PTR_ERR(pc);
                 ret = ACT_P_CREATED;
diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c
index 584e65503edb..a49fa23b49dd 100644
--- a/net/sched/act_nat.c
+++ b/net/sched/act_nat.c
@@ -30,7 +30,6 @@
 
 
 #define NAT_TAB_MASK    15
-static u32 nat_idx_gen;
 
 static struct tcf_hashinfo nat_hash_info;
 
@@ -61,7 +60,7 @@ static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
         pc = tcf_hash_check(parm->index, a, bind, &nat_hash_info);
         if (!pc) {
                 pc = tcf_hash_create(parm->index, est, a, sizeof(*p), bind,
-                                     &nat_idx_gen, &nat_hash_info);
+                                     &nat_hash_info);
                 if (IS_ERR(pc))
                         return PTR_ERR(pc);
                 ret = ACT_P_CREATED;
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index 729189341933..f361e4e3c314 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -24,7 +24,6 @@
 #include <net/tc_act/tc_pedit.h>
 
 #define PEDIT_TAB_MASK  15
-static u32 pedit_idx_gen;
 
 static struct tcf_hashinfo pedit_hash_info;
 
@@ -63,7 +62,7 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
                 if (!parm->nkeys)
                         return -EINVAL;
                 pc = tcf_hash_create(parm->index, est, a, sizeof(*p), bind,
-                                     &pedit_idx_gen, &pedit_hash_info);
+                                     &pedit_hash_info);
                 if (IS_ERR(pc))
                         return PTR_ERR(pc);
                 p = to_pedit(pc);
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index 9295b86d5319..a719fdff575e 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -41,7 +41,6 @@ struct tcf_police {
         container_of(pc, struct tcf_police, common)
 
 #define POL_TAB_MASK     15
-static u32 police_idx_gen;
 static struct tcf_hashinfo police_hash_info;
 
 /* old policer structure from before tc actions */
@@ -251,7 +250,7 @@ override:
 
         police->tcfp_t_c = ktime_to_ns(ktime_get());
         police->tcf_index = parm->index ? parm->index :
-                tcf_hash_new_index(&police_idx_gen, &police_hash_info);
+                tcf_hash_new_index(&police_hash_info);
         h = tcf_hash(police->tcf_index, POL_TAB_MASK);
         spin_lock_bh(&police_hash_info.lock);
         hlist_add_head(&police->tcf_head, &police_hash_info.htab[h]);
diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
index b44491e3ec17..f7d5406c1fe2 100644
--- a/net/sched/act_simple.c
+++ b/net/sched/act_simple.c
@@ -25,7 +25,6 @@
 #include <net/tc_act/tc_defact.h>
 
 #define SIMP_TAB_MASK     7
-static u32 simp_idx_gen;
 static struct tcf_hashinfo simp_hash_info;
 
 #define SIMP_MAX_DATA   32
@@ -118,7 +117,7 @@ static int tcf_simp_init(struct net *net, struct nlattr *nla,
         pc = tcf_hash_check(parm->index, a, bind, &simp_hash_info);
         if (!pc) {
                 pc = tcf_hash_create(parm->index, est, a, sizeof(*d), bind,
-                                     &simp_idx_gen, &simp_hash_info);
+                                     &simp_hash_info);
                 if (IS_ERR(pc))
                         return PTR_ERR(pc);
 
diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c
index 0fa1aad6e204..74af46127060 100644
--- a/net/sched/act_skbedit.c
+++ b/net/sched/act_skbedit.c
@@ -28,7 +28,6 @@
 #include <net/tc_act/tc_skbedit.h>
 
 #define SKBEDIT_TAB_MASK     15
-static u32 skbedit_idx_gen;
 static struct tcf_hashinfo skbedit_hash_info;
 
 static int tcf_skbedit(struct sk_buff *skb, const struct tc_action *a,
@@ -104,7 +103,7 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
         pc = tcf_hash_check(parm->index, a, bind, &skbedit_hash_info);
         if (!pc) {
                 pc = tcf_hash_create(parm->index, est, a, sizeof(*d), bind,
-                                     &skbedit_idx_gen, &skbedit_hash_info);
+                                     &skbedit_hash_info);
                 if (IS_ERR(pc))
                         return PTR_ERR(pc);