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Diffstat (limited to 'net/mac80211/tdls.c')
-rw-r--r--net/mac80211/tdls.c49
1 files changed, 18 insertions, 31 deletions
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index f20dcf1b1830..91093d4a2f84 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -49,7 +49,7 @@ static void ieee80211_tdls_add_ext_capab(struct ieee80211_sub_if_data *sdata,
!ifmgd->tdls_wider_bw_prohibited;
struct ieee80211_supported_band *sband = ieee80211_get_sband(sdata);
bool vht = sband && sband->vht_cap.vht_supported;
- u8 *pos = (void *)skb_put(skb, 10);
+ u8 *pos = skb_put(skb, 10);
*pos++ = WLAN_EID_EXT_CAPABILITY;
*pos++ = 8; /* len */
@@ -168,7 +168,7 @@ static void ieee80211_tdls_add_oper_classes(struct ieee80211_sub_if_data *sdata,
static void ieee80211_tdls_add_bss_coex_ie(struct sk_buff *skb)
{
- u8 *pos = (void *)skb_put(skb, 3);
+ u8 *pos = skb_put(skb, 3);
*pos++ = WLAN_EID_BSS_COEX_2040;
*pos++ = 1; /* len */
@@ -209,7 +209,7 @@ static void ieee80211_tdls_add_link_ie(struct ieee80211_sub_if_data *sdata,
rsp_addr = sdata->vif.addr;
}
- lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
+ lnkid = skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
lnkid->ie_type = WLAN_EID_LINK_ID;
lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
@@ -223,7 +223,7 @@ static void
ieee80211_tdls_add_aid(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- u8 *pos = (void *)skb_put(skb, 4);
+ u8 *pos = skb_put(skb, 4);
*pos++ = WLAN_EID_AID;
*pos++ = 2; /* len */
@@ -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;
@@ -389,8 +388,7 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata,
before_ext_cap,
ARRAY_SIZE(before_ext_cap),
offset);
- pos = skb_put(skb, noffset - offset);
- memcpy(pos, extra_ies + offset, noffset - offset);
+ skb_put_data(skb, extra_ies + offset, noffset - offset);
offset = noffset;
}
@@ -419,8 +417,7 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata,
before_ht_cap,
ARRAY_SIZE(before_ht_cap),
offset);
- pos = skb_put(skb, noffset - offset);
- memcpy(pos, extra_ies + offset, noffset - offset);
+ skb_put_data(skb, extra_ies + offset, noffset - offset);
offset = noffset;
}
@@ -491,8 +488,7 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata,
before_vht_cap,
ARRAY_SIZE(before_vht_cap),
offset);
- pos = skb_put(skb, noffset - offset);
- memcpy(pos, extra_ies + offset, noffset - offset);
+ skb_put_data(skb, extra_ies + offset, noffset - offset);
offset = noffset;
}
@@ -533,8 +529,7 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata,
/* add any remaining IEs */
if (extra_ies_len) {
noffset = extra_ies_len;
- pos = skb_put(skb, noffset - offset);
- memcpy(pos, extra_ies + offset, noffset - offset);
+ skb_put_data(skb, extra_ies + offset, noffset - offset);
}
}
@@ -576,8 +571,7 @@ ieee80211_tdls_add_setup_cfm_ies(struct ieee80211_sub_if_data *sdata,
before_qos,
ARRAY_SIZE(before_qos),
offset);
- pos = skb_put(skb, noffset - offset);
- memcpy(pos, extra_ies + offset, noffset - offset);
+ skb_put_data(skb, extra_ies + offset, noffset - offset);
offset = noffset;
}
@@ -597,8 +591,7 @@ ieee80211_tdls_add_setup_cfm_ies(struct ieee80211_sub_if_data *sdata,
before_ht_op,
ARRAY_SIZE(before_ht_op),
offset);
- pos = skb_put(skb, noffset - offset);
- memcpy(pos, extra_ies + offset, noffset - offset);
+ skb_put_data(skb, extra_ies + offset, noffset - offset);
offset = noffset;
}
@@ -639,8 +632,7 @@ ieee80211_tdls_add_setup_cfm_ies(struct ieee80211_sub_if_data *sdata,
/* add any remaining IEs */
if (extra_ies_len) {
noffset = extra_ies_len;
- pos = skb_put(skb, noffset - offset);
- memcpy(pos, extra_ies + offset, noffset - offset);
+ skb_put_data(skb, extra_ies + offset, noffset - offset);
}
}
@@ -653,7 +645,6 @@ ieee80211_tdls_add_chan_switch_req_ies(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_tdls_data *tf;
size_t offset = 0, noffset;
- u8 *pos;
if (WARN_ON_ONCE(!chandef))
return;
@@ -671,8 +662,7 @@ ieee80211_tdls_add_chan_switch_req_ies(struct ieee80211_sub_if_data *sdata,
before_lnkie,
ARRAY_SIZE(before_lnkie),
offset);
- pos = skb_put(skb, noffset - offset);
- memcpy(pos, extra_ies + offset, noffset - offset);
+ skb_put_data(skb, extra_ies + offset, noffset - offset);
offset = noffset;
}
@@ -681,8 +671,7 @@ ieee80211_tdls_add_chan_switch_req_ies(struct ieee80211_sub_if_data *sdata,
/* add any remaining IEs */
if (extra_ies_len) {
noffset = extra_ies_len;
- pos = skb_put(skb, noffset - offset);
- memcpy(pos, extra_ies + offset, noffset - offset);
+ skb_put_data(skb, extra_ies + offset, noffset - offset);
}
}
@@ -697,7 +686,7 @@ ieee80211_tdls_add_chan_switch_resp_ies(struct ieee80211_sub_if_data *sdata,
ieee80211_tdls_add_link_ie(sdata, skb, peer, initiator);
if (extra_ies_len)
- memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
+ skb_put_data(skb, extra_ies, extra_ies_len);
}
static void ieee80211_tdls_add_ies(struct ieee80211_sub_if_data *sdata,
@@ -727,8 +716,7 @@ static void ieee80211_tdls_add_ies(struct ieee80211_sub_if_data *sdata,
case WLAN_TDLS_TEARDOWN:
case WLAN_TDLS_DISCOVERY_REQUEST:
if (extra_ies_len)
- memcpy(skb_put(skb, extra_ies_len), extra_ies,
- extra_ies_len);
+ skb_put_data(skb, extra_ies, extra_ies_len);
if (status_code == 0 || action_code == WLAN_TDLS_TEARDOWN)
ieee80211_tdls_add_link_ie(sdata, skb, peer, initiator);
break;
@@ -756,7 +744,7 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_tdls_data *tf;
- tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
+ tf = skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
memcpy(tf->da, peer, ETH_ALEN);
memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
@@ -838,8 +826,7 @@ 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);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.