networking: convert many more places to skb_put_zero()

There were many places that my previous spatch didn't find,
as pointed out by yuan linyu in various patches.

The following spatch found many more and also removes the
now unnecessary casts:

    @@
    identifier p, p2;
    expression len;
    expression skb;
    type t, t2;
    @@
    (
    -p = skb_put(skb, len);
    +p = skb_put_zero(skb, len);
    |
    -p = (t)skb_put(skb, len);
    +p = skb_put_zero(skb, len);
    )
    ... when != p
    (
    p2 = (t2)p;
    -memset(p2, 0, len);
    |
    -memset(p, 0, len);
    )

    @@
    type t, t2;
    identifier p, p2;
    expression skb;
    @@
    t *p;
    ...
    (
    -p = skb_put(skb, sizeof(t));
    +p = skb_put_zero(skb, sizeof(t));
    |
    -p = (t *)skb_put(skb, sizeof(t));
    +p = skb_put_zero(skb, sizeof(t));
    )
    ... when != p
    (
    p2 = (t2)p;
    -memset(p2, 0, sizeof(*p));
    |
    -memset(p, 0, sizeof(*p));
    )

    @@
    expression skb, len;
    @@
    -memset(skb_put(skb, len), 0, len);
    +skb_put_zero(skb, len);

Apply it to the tree (with one manual fixup to keep the
comment in vxlan.c, which spatch removed.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 5 deletions

diff --git a/drivers/net/wireless/intersil/hostap/hostap_ap.c b/drivers/net/wireless/intersil/hostap/hostap_ap.c
index c995ace153ee..89b5987303a4 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_ap.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_ap.c
@@ -998,12 +998,10 @@ static void prism2_send_mgmt(struct net_device *dev,
 
 	fc = type_subtype;
 	hdrlen = hostap_80211_get_hdrlen(cpu_to_le16(type_subtype));
-	hdr = (struct ieee80211_hdr *) skb_put(skb, hdrlen);
+	hdr = skb_put_zero(skb, hdrlen);
 	if (body)
 		memcpy(skb_put(skb, body_len), body, body_len);
 
-	memset(hdr, 0, hdrlen);
-
 	/* FIX: ctrl::ack sending used special HFA384X_TX_CTRL_802_11
 	 * tx_control instead of using local->tx_control */
 
@@ -1325,8 +1323,7 @@ static char * ap_auth_make_challenge(struct ap_data *ap)
 	}
 
 	skb_reserve(skb, ap->crypt->extra_mpdu_prefix_len);
-	memset(skb_put(skb, WLAN_AUTH_CHALLENGE_LEN), 0,
-	       WLAN_AUTH_CHALLENGE_LEN);
+	skb_put_zero(skb, WLAN_AUTH_CHALLENGE_LEN);
 	if (ap->crypt->encrypt_mpdu(skb, 0, ap->crypt_priv)) {
 		dev_kfree_skb(skb);
 		kfree(tmpbuf);