net: simplify the getting percpu of flow_cache
replace per_cpu with per_cpu_ptr to save conversion between address and pointer
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/flow.c b/net/core/flow.c
index 7fae135..707fb7b 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -334,7 +334,7 @@
struct flow_cache_percpu *fcp;
int i;
- fcp = &per_cpu(*fc->percpu, cpu);
+ fcp = per_cpu_ptr(fc->percpu, cpu);
for (i = 0; i < flow_cache_hash_size(fc); i++)
if (!hlist_empty(&fcp->hash_table[i]))
return 0;