From b080db585384b9f037e015c0c28d1ad33be41dfc Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 16 Jun 2017 14:29:19 +0200 Subject: 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 Signed-off-by: David S. Miller --- net/mac80211/tdls.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'net/mac80211/tdls.c') diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c index f20dcf1b1830..c379c99cd1d8 100644 --- a/net/mac80211/tdls.c +++ b/net/mac80211/tdls.c @@ -271,8 +271,7 @@ static void ieee80211_tdls_add_wmm_param_ie(struct ieee80211_sub_if_data *sdata, struct ieee80211_tx_queue_params *txq; int i; - wmm = (void *)skb_put(skb, sizeof(*wmm)); - memset(wmm, 0, sizeof(*wmm)); + wmm = skb_put_zero(skb, sizeof(*wmm)); wmm->element_id = WLAN_EID_VENDOR_SPECIFIC; wmm->len = sizeof(*wmm) - 2; @@ -838,8 +837,7 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_mgmt *mgmt; - mgmt = (void *)skb_put(skb, 24); - memset(mgmt, 0, 24); + mgmt = skb_put_zero(skb, 24); memcpy(mgmt->da, peer, ETH_ALEN); memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN); -- cgit v1.2.3