[PATCH net-next 05/11] key: skb_put_zero() used to optimize code

[yuan linyu]

From: yuan linyu <linyu.y...@alcatel-sbell.com.cn>

Signed-off-by: yuan linyu <linyu.y...@alcatel-sbell.com.cn>
---
 net/key/af_key.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/net/key/af_key.c b/net/key/af_key.c
index 512dc43..c6c7cbf 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -2934,8 +2934,7 @@ static void dump_ah_combs(struct sk_buff *skb, const 
struct xfrm_tmpl *t)
 
                if (aalg_tmpl_set(t, aalg) && aalg->available) {
                        struct sadb_comb *c;
-                       c = (struct sadb_comb*)skb_put(skb, sizeof(struct 
sadb_comb));
-                       memset(c, 0, sizeof(*c));
+                       c = (struct sadb_comb*)skb_put_zero(skb, sizeof(struct 
sadb_comb));
                        p->sadb_prop_len += sizeof(struct sadb_comb)/8;
                        c->sadb_comb_auth = aalg->desc.sadb_alg_id;
                        c->sadb_comb_auth_minbits = aalg->desc.sadb_alg_minbits;
@@ -2979,8 +2978,7 @@ static void dump_esp_combs(struct sk_buff *skb, const 
struct xfrm_tmpl *t)
                                continue;
                        if (!(aalg_tmpl_set(t, aalg) && aalg->available))
                                continue;
-                       c = (struct sadb_comb*)skb_put(skb, sizeof(struct 
sadb_comb));
-                       memset(c, 0, sizeof(*c));
+                       c = (struct sadb_comb*)skb_put_zero(skb, sizeof(struct 
sadb_comb));
                        p->sadb_prop_len += sizeof(struct sadb_comb)/8;
                        c->sadb_comb_auth = aalg->desc.sadb_alg_id;
                        c->sadb_comb_auth_minbits = aalg->desc.sadb_alg_minbits;
@@ -3461,8 +3459,7 @@ static int set_sadb_kmaddress(struct sk_buff *skb, const 
struct xfrm_kmaddress *
        size_req = (sizeof(struct sadb_x_kmaddress) +
                    pfkey_sockaddr_pair_size(family));
 
-       kma = (struct sadb_x_kmaddress *)skb_put(skb, size_req);
-       memset(kma, 0, size_req);
+       kma = (struct sadb_x_kmaddress *)skb_put_zero(skb, size_req);
        kma->sadb_x_kmaddress_len = size_req / 8;
        kma->sadb_x_kmaddress_exttype = SADB_X_EXT_KMADDRESS;
        kma->sadb_x_kmaddress_reserved = k->reserved;
@@ -3488,8 +3485,7 @@ static int set_ipsecrequest(struct sk_buff *skb,
        size_req = sizeof(struct sadb_x_ipsecrequest) +
                   pfkey_sockaddr_pair_size(family);
 
-       rq = (struct sadb_x_ipsecrequest *)skb_put(skb, size_req);
-       memset(rq, 0, size_req);
+       rq = (struct sadb_x_ipsecrequest *)skb_put_zero(skb, size_req);
        rq->sadb_x_ipsecrequest_len = size_req;
        rq->sadb_x_ipsecrequest_proto = proto;
        rq->sadb_x_ipsecrequest_mode = mode;
-- 
2.7.4