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, 4 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 1929bce8e518..e810334595ff 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -674,8 +674,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
         if (ifmgd->flags & IEEE80211_STA_ENABLE_RRM)
                 capab |= WLAN_CAPABILITY_RADIO_MEASURE;
 
-        mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
-        memset(mgmt, 0, 24);
+        mgmt = skb_put_zero(skb, 24);
         memcpy(mgmt->da, assoc_data->bss->bssid, ETH_ALEN);
         memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
         memcpy(mgmt->bssid, assoc_data->bss->bssid, ETH_ALEN);
@@ -949,8 +948,7 @@ static void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
 
         skb_reserve(skb, local->hw.extra_tx_headroom);
 
-        nullfunc = (struct ieee80211_hdr *) skb_put(skb, 30);
-        memset(nullfunc, 0, 30);
+        nullfunc = skb_put_zero(skb, 30);
         fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
                          IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
         nullfunc->frame_control = fc;