net: use the new API kvfree()

It is available since v3.15-rc5.

Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/sch_choke.c

@@ -391,12 +391,7 @@ static const struct nla_policy choke_policy[TCA_CHOKE_MAX + 1] = {
 
 static void choke_free(void *addr)
 {
-	if (addr) {
-		if (is_vmalloc_addr(addr))
-			vfree(addr);
-		else
-			kfree(addr);
-	}
+	kvfree(addr);
 }
 
 static int choke_change(struct Qdisc *sch, struct nlattr *opt)

net/sched/sch_fq.c

@@ -591,10 +591,7 @@ static void *fq_alloc_node(size_t sz, int node)
 
 static void fq_free(void *addr)
 {
-	if (addr && is_vmalloc_addr(addr))
-		vfree(addr);
-	else
-		kfree(addr);
+	kvfree(addr);
 }
 
 static int fq_resize(struct Qdisc *sch, u32 log)

net/sched/sch_fq_codel.c

@@ -365,12 +365,7 @@ static void *fq_codel_zalloc(size_t sz)
 
 static void fq_codel_free(void *addr)
 {
-	if (addr) {
-		if (is_vmalloc_addr(addr))
-			vfree(addr);
-		else
-			kfree(addr);
-	}
+	kvfree(addr);
 }
 
 static void fq_codel_destroy(struct Qdisc *sch)

net/sched/sch_hhf.c

@@ -494,12 +494,7 @@ static void *hhf_zalloc(size_t sz)
 
 static void hhf_free(void *addr)
 {
-	if (addr) {
-		if (is_vmalloc_addr(addr))
-			vfree(addr);
-		else
-			kfree(addr);
-	}
+	kvfree(addr);
 }
 
 static void hhf_destroy(struct Qdisc *sch)

net/sched/sch_netem.c

@@ -648,12 +648,7 @@ static void netem_reset(struct Qdisc *sch)
 
 static void dist_free(struct disttable *d)
 {
-	if (d) {
-		if (is_vmalloc_addr(d))
-			vfree(d);
-		else
-			kfree(d);
-	}
+	kvfree(d);
 }
 
 /*

net/sched/sch_sfq.c

@@ -716,12 +716,7 @@ static void *sfq_alloc(size_t sz)
 
 static void sfq_free(void *addr)
 {
-	if (addr) {
-		if (is_vmalloc_addr(addr))
-			vfree(addr);
-		else
-			kfree(addr);
-	}
+	kvfree(addr);
 }
 
 static void sfq_destroy(struct Qdisc *sch)