nfs: disintegrate UAPI for nfs

This is to complete part of the Userspace API (UAPI) disintegration for which
the preparatory patches were pulled recently.  After these patches, userspace
headers will be segregated into:

        include/uapi/linux/.../foo.h

for the userspace interface stuff, and:

        include/linux/.../foo.h

for the strictly kernel internal stuff.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 46 insertions, 65 deletions

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index acf712ffb5e6..e0e0d1d0e830 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -55,7 +55,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
 	if (WARN_ON_ONCE(info->control.rates[0].idx < 0))
 		return 0;
 
-	sband = local->hw.wiphy->bands[tx->channel->band];
+	sband = local->hw.wiphy->bands[info->band];
 	txrate = &sband->bitrates[info->control.rates[0].idx];
 
 	erp = txrate->flags & IEEE80211_RATE_ERP_G;
@@ -580,7 +580,7 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 				tx->key = NULL;
 			else
 				skip_hw = (tx->key->conf.flags &
-					   IEEE80211_KEY_FLAG_SW_MGMT) &&
+					   IEEE80211_KEY_FLAG_SW_MGMT_TX) &&
 					ieee80211_is_mgmt(hdr->frame_control);
 			break;
 		case WLAN_CIPHER_SUITE_AES_CMAC:
@@ -615,7 +615,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 
 	memset(&txrc, 0, sizeof(txrc));
 
-	sband = tx->local->hw.wiphy->bands[tx->channel->band];
+	sband = tx->local->hw.wiphy->bands[info->band];
 
 	len = min_t(u32, tx->skb->len + FCS_LEN,
 			 tx->local->hw.wiphy->frag_threshold);
@@ -626,13 +626,13 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 	txrc.bss_conf = &tx->sdata->vif.bss_conf;
 	txrc.skb = tx->skb;
 	txrc.reported_rate.idx = -1;
-	txrc.rate_idx_mask = tx->sdata->rc_rateidx_mask[tx->channel->band];
+	txrc.rate_idx_mask = tx->sdata->rc_rateidx_mask[info->band];
 	if (txrc.rate_idx_mask == (1 << sband->n_bitrates) - 1)
 		txrc.max_rate_idx = -1;
 	else
 		txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
 	memcpy(txrc.rate_idx_mcs_mask,
-	       tx->sdata->rc_rateidx_mcs_mask[tx->channel->band],
+	       tx->sdata->rc_rateidx_mcs_mask[info->band],
 	       sizeof(txrc.rate_idx_mcs_mask));
 	txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP ||
 		    tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
@@ -667,7 +667,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 		 "scanning and associated. Target station: "
 		 "%pM on %d GHz band\n",
 		 tx->sdata->name, hdr->addr1,
-		 tx->channel->band ? 5 : 2))
+		 info->band ? 5 : 2))
 		return TX_DROP;
 
 	/*
@@ -1131,7 +1131,6 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
 	tx->skb = skb;
 	tx->local = local;
 	tx->sdata = sdata;
-	tx->channel = local->hw.conf.channel;
 	__skb_queue_head_init(&tx->skbs);
 
 	/*
@@ -1204,6 +1203,7 @@ static bool ieee80211_tx_frags(struct ieee80211_local *local,
 			       struct sk_buff_head *skbs,
 			       bool txpending)
 {
+	struct ieee80211_tx_control control;
 	struct sk_buff *skb, *tmp;
 	unsigned long flags;
 
@@ -1240,10 +1240,10 @@ static bool ieee80211_tx_frags(struct ieee80211_local *local,
 		spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 
 		info->control.vif = vif;
-		info->control.sta = sta;
+		control.sta = sta;
 
 		__skb_unlink(skb, skbs);
-		drv_tx(local, skb);
+		drv_tx(local, &control, skb);
 	}
 
 	return true;
@@ -1399,8 +1399,7 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
 		goto out;
 	}
 
-	tx.channel = local->hw.conf.channel;
-	info->band = tx.channel->band;
+	info->band = local->hw.conf.channel->band;
 
 	/* set up hw_queue value early */
 	if (!(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) ||
@@ -1720,7 +1719,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_tx_info *info;
-	int ret = NETDEV_TX_BUSY, head_need;
+	int head_need;
 	u16 ethertype, hdrlen,  meshhdrlen = 0;
 	__le16 fc;
 	struct ieee80211_hdr hdr;
@@ -1736,10 +1735,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 	u32 info_flags = 0;
 	u16 info_id = 0;
 
-	if (unlikely(skb->len < ETH_HLEN)) {
-		ret = NETDEV_TX_OK;
+	if (unlikely(skb->len < ETH_HLEN))
 		goto fail;
-	}
 
 	/* convert Ethernet header to proper 802.11 header (based on
 	 * operation mode) */
@@ -1787,7 +1784,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		if (!sdata->u.mesh.mshcfg.dot11MeshTTL) {
 			/* Do not send frames with mesh_ttl == 0 */
 			sdata->u.mesh.mshstats.dropped_frames_ttl++;
-			ret = NETDEV_TX_OK;
 			goto fail;
 		}
 		rcu_read_lock();
@@ -1811,37 +1807,31 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 			meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr,
 					sdata, NULL, NULL);
 		} else {
-			int is_mesh_mcast = 1;
-			const u8 *mesh_da;
+			/* DS -> MBSS (802.11-2012 13.11.3.3).
+			 * For unicast with unknown forwarding information,
+			 * destination might be in the MBSS or if that fails
+			 * forwarded to another mesh gate. In either case
+			 * resolution will be handled in ieee80211_xmit(), so
+			 * leave the original DA. This also works for mcast */
+			const u8 *mesh_da = skb->data;
+
+			if (mppath)
+				mesh_da = mppath->mpp;
+			else if (mpath)
+				mesh_da = mpath->dst;
+			rcu_read_unlock();
 
-			if (is_multicast_ether_addr(skb->data))
-				/* DA TA mSA AE:SA */
-				mesh_da = skb->data;
-			else {
-				static const u8 bcast[ETH_ALEN] =
-					{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
-				if (mppath) {
-					/* RA TA mDA mSA AE:DA SA */
-					mesh_da = mppath->mpp;
-					is_mesh_mcast = 0;
-				} else if (mpath) {
-					mesh_da = mpath->dst;
-					is_mesh_mcast = 0;
-				} else {
-					/* DA TA mSA AE:SA */
-					mesh_da = bcast;
-				}
-			}
 			hdrlen = ieee80211_fill_mesh_addresses(&hdr, &fc,
 					mesh_da, sdata->vif.addr);
-			rcu_read_unlock();
-			if (is_mesh_mcast)
+			if (is_multicast_ether_addr(mesh_da))
+				/* DA TA mSA AE:SA */
 				meshhdrlen =
 					ieee80211_new_mesh_header(&mesh_hdr,
 							sdata,
 							skb->data + ETH_ALEN,
 							NULL);
 			else
+				/* RA TA mDA mSA AE:DA SA */
 				meshhdrlen =
 					ieee80211_new_mesh_header(&mesh_hdr,
 							sdata,
@@ -1880,10 +1870,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 
 		if (tdls_direct) {
 			/* link during setup - throw out frames to peer */
-			if (!tdls_auth) {
-				ret = NETDEV_TX_OK;
+			if (!tdls_auth)
 				goto fail;
-			}
 
 			/* DA SA BSSID */
 			memcpy(hdr.addr1, skb->data, ETH_ALEN);
@@ -1917,7 +1905,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		hdrlen = 24;
 		break;
 	default:
-		ret = NETDEV_TX_OK;
 		goto fail;
 	}
 
@@ -1962,7 +1949,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 
 		I802_DEBUG_INC(local->tx_handlers_drop_unauth_port);
 
-		ret = NETDEV_TX_OK;
 		goto fail;
 	}
 
@@ -2017,10 +2003,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		skb = skb_clone(skb, GFP_ATOMIC);
 		kfree_skb(tmp_skb);
 
-		if (!skb) {
-			ret = NETDEV_TX_OK;
+		if (!skb)
 			goto fail;
-		}
 	}
 
 	hdr.frame_control = fc;
@@ -2123,10 +2107,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 	return NETDEV_TX_OK;
 
  fail:
-	if (ret == NETDEV_TX_OK)
-		dev_kfree_skb(skb);
-
-	return ret;
+	dev_kfree_skb(skb);
+	return NETDEV_TX_OK;
 }
 
 
@@ -2301,12 +2283,9 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 	struct ieee80211_sub_if_data *sdata = NULL;
 	struct ieee80211_if_ap *ap = NULL;
 	struct beacon_data *beacon;
-	struct ieee80211_supported_band *sband;
-	enum ieee80211_band band = local->hw.conf.channel->band;
+	enum ieee80211_band band = local->oper_channel->band;
 	struct ieee80211_tx_rate_control txrc;
 
-	sband = local->hw.wiphy->bands[band];
-
 	rcu_read_lock();
 
 	sdata = vif_to_sdata(vif);
@@ -2416,7 +2395,7 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 		memset(mgmt, 0, hdr_len);
 		mgmt->frame_control =
 		    cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
-		memset(mgmt->da, 0xff, ETH_ALEN);
+		eth_broadcast_addr(mgmt->da);
 		memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 		memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
 		mgmt->u.beacon.beacon_int =
@@ -2428,9 +2407,9 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 		*pos++ = WLAN_EID_SSID;
 		*pos++ = 0x0;
 
-		if (ieee80211_add_srates_ie(sdata, skb, true) ||
+		if (ieee80211_add_srates_ie(sdata, skb, true, band) ||
 		    mesh_add_ds_params_ie(skb, sdata) ||
-		    ieee80211_add_ext_srates_ie(sdata, skb, true) ||
+		    ieee80211_add_ext_srates_ie(sdata, skb, true, band) ||
 		    mesh_add_rsn_ie(skb, sdata) ||
 		    mesh_add_ht_cap_ie(skb, sdata) ||
 		    mesh_add_ht_oper_ie(skb, sdata) ||
@@ -2453,12 +2432,12 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 
 	memset(&txrc, 0, sizeof(txrc));
 	txrc.hw = hw;
-	txrc.sband = sband;
+	txrc.sband = local->hw.wiphy->bands[band];
 	txrc.bss_conf = &sdata->vif.bss_conf;
 	txrc.skb = skb;
 	txrc.reported_rate.idx = -1;
 	txrc.rate_idx_mask = sdata->rc_rateidx_mask[band];
-	if (txrc.rate_idx_mask == (1 << sband->n_bitrates) - 1)
+	if (txrc.rate_idx_mask == (1 << txrc.sband->n_bitrates) - 1)
 		txrc.max_rate_idx = -1;
 	else
 		txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
@@ -2482,7 +2461,8 @@ struct sk_buff *ieee80211_proberesp_get(struct ieee80211_hw *hw,
 					struct ieee80211_vif *vif)
 {
 	struct ieee80211_if_ap *ap = NULL;
-	struct sk_buff *presp = NULL, *skb = NULL;
+	struct sk_buff *skb = NULL;
+	struct probe_resp *presp = NULL;
 	struct ieee80211_hdr *hdr;
 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
 
@@ -2496,10 +2476,12 @@ struct sk_buff *ieee80211_proberesp_get(struct ieee80211_hw *hw,
 	if (!presp)
 		goto out;
 
-	skb = skb_copy(presp, GFP_ATOMIC);
+	skb = dev_alloc_skb(presp->len);
 	if (!skb)
 		goto out;
 
+	memcpy(skb_put(skb, presp->len), presp->data, presp->len);
+
 	hdr = (struct ieee80211_hdr *) skb->data;
 	memset(hdr->addr1, 0, sizeof(hdr->addr1));
 
@@ -2610,9 +2592,9 @@ struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw,
 	memset(hdr, 0, sizeof(*hdr));
 	hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					 IEEE80211_STYPE_PROBE_REQ);
-	memset(hdr->addr1, 0xff, ETH_ALEN);
+	eth_broadcast_addr(hdr->addr1);
 	memcpy(hdr->addr2, vif->addr, ETH_ALEN);
-	memset(hdr->addr3, 0xff, ETH_ALEN);
+	eth_broadcast_addr(hdr->addr3);
 
 	pos = skb_put(skb, ie_ssid_len);
 	*pos++ = WLAN_EID_SSID;
@@ -2709,8 +2691,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
 	info = IEEE80211_SKB_CB(skb);
 
 	tx.flags |= IEEE80211_TX_PS_BUFFERED;
-	tx.channel = local->hw.conf.channel;
-	info->band = tx.channel->band;
+	info->band = local->oper_channel->band;
 
 	if (invoke_tx_handlers(&tx))
 		skb = NULL;