diff --git a/net/core/flow.c b/net/core/flow.c
index 1619006..8c7c91a 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -222,7 +222,7 @@
 	unsigned int hash;
 
 	local_bh_disable();
-	fcp = per_cpu_ptr(fc->percpu, smp_processor_id());
+	fcp = this_cpu_ptr(fc->percpu);
 
 	fle = NULL;
 	flo = NULL;
@@ -302,7 +302,7 @@
 	LIST_HEAD(gc_list);
 	int i, deleted = 0;
 
-	fcp = per_cpu_ptr(fc->percpu, smp_processor_id());
+	fcp = this_cpu_ptr(fc->percpu);
 	for (i = 0; i < flow_cache_hash_size(fc); i++) {
 		hlist_for_each_entry_safe(fle, entry, tmp,
 					  &fcp->hash_table[i], u.hlist) {
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index db47a5a..d859bcc 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -342,7 +342,7 @@
 
 #ifdef CONFIG_NET_CLS_ROUTE
 	if (unlikely(skb_dst(skb)->tclassid)) {
-		struct ip_rt_acct *st = per_cpu_ptr(ip_rt_acct, smp_processor_id());
+		struct ip_rt_acct *st = this_cpu_ptr(ip_rt_acct);
 		u32 idx = skb_dst(skb)->tclassid;
 		st[idx&0xFF].o_packets++;
 		st[idx&0xFF].o_bytes += skb->len;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index d5f84bd..4e6ddfb 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2962,7 +2962,7 @@
 	spin_unlock(&tcp_md5sig_pool_lock);
 
 	if (p)
-		return *per_cpu_ptr(p, smp_processor_id());
+		return *this_cpu_ptr(p);
 
 	local_bh_enable();
 	return NULL;