[MAC80211]: move QoS rx handlers into rx.c

This patch moves the QoS handlers into rx.c making it possible
to compile wme.c only when NET_SCHED is defined.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/mac80211/Makefile

@@ -2,6 +2,7 @@ obj-$(CONFIG_MAC80211) += mac80211.o rc80211_simple.o
 
 mac80211-objs-$(CONFIG_MAC80211_LEDS) += ieee80211_led.o
 mac80211-objs-$(CONFIG_MAC80211_DEBUGFS) += debugfs.o debugfs_sta.o debugfs_netdev.o debugfs_key.o
+mac80211-objs-$(CONFIG_NET_SCHED) += wme.o
 
 mac80211-objs := \
 	ieee80211.o \
@@ -16,7 +17,6 @@ mac80211-objs := \
 	regdomain.o \
 	tkip.o \
 	aes_ccm.o \
-	wme.o \
 	ieee80211_cfg.o \
 	rx.o \
 	$(mac80211-objs-y)

net/mac80211/rx.c

@@ -30,6 +30,41 @@
  * these don't have dev/sdata fields in the rx data
  */
 
+static ieee80211_txrx_result
+ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx)
+{
+	u8 *data = rx->skb->data;
+	int tid;
+
+	/* does the frame have a qos control field? */
+	if (WLAN_FC_IS_QOS_DATA(rx->fc)) {
+		u8 *qc = data + ieee80211_get_hdrlen(rx->fc) - QOS_CONTROL_LEN;
+		/* frame has qos control */
+		tid = qc[0] & QOS_CONTROL_TID_MASK;
+	} else {
+		if (unlikely((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)) {
+			/* Separate TID for management frames */
+			tid = NUM_RX_DATA_QUEUES - 1;
+		} else {
+			/* no qos control present */
+			tid = 0; /* 802.1d - Best Effort */
+		}
+	}
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+	I802_DEBUG_INC(rx->local->wme_rx_queue[tid]);
+	if (rx->sta) {
+		I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]);
+	}
+#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
+
+	rx->u.rx.queue = tid;
+	/* Set skb->priority to 1d tag if highest order bit of TID is not set.
+	 * For now, set skb->priority to 0 for other cases. */
+	rx->skb->priority = (tid > 7) ? 0 : tid;
+
+	return TXRX_CONTINUE;
+}
+
 static ieee80211_txrx_result
 ieee80211_rx_h_load_stats(struct ieee80211_txrx_data *rx)
 {
@@ -764,6 +799,26 @@ ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
 	return TXRX_QUEUED;
 }
 
+static ieee80211_txrx_result
+ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
+{
+	u16 fc = rx->fc;
+	u8 *data = rx->skb->data;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) data;
+
+	if (!WLAN_FC_IS_QOS_DATA(fc))
+		return TXRX_CONTINUE;
+
+	/* remove the qos control field, update frame type and meta-data */
+	memmove(data + 2, data, ieee80211_get_hdrlen(fc) - 2);
+	hdr = (struct ieee80211_hdr *) skb_pull(rx->skb, 2);
+	/* change frame type to non QOS */
+	rx->fc = fc &= ~IEEE80211_STYPE_QOS_DATA;
+	hdr->frame_control = cpu_to_le16(fc);
+
+	return TXRX_CONTINUE;
+}
+
 static ieee80211_txrx_result
 ieee80211_rx_h_802_1x_pae(struct ieee80211_txrx_data *rx)
 {

net/mac80211/wme.c

@@ -18,70 +18,6 @@
 #include "ieee80211_i.h"
 #include "wme.h"
 
-static inline int WLAN_FC_IS_QOS_DATA(u16 fc)
-{
-	return (fc & 0x8C) == 0x88;
-}
-
-
-ieee80211_txrx_result
-ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx)
-{
-	u8 *data = rx->skb->data;
-	int tid;
-
-	/* does the frame have a qos control field? */
-	if (WLAN_FC_IS_QOS_DATA(rx->fc)) {
-		u8 *qc = data + ieee80211_get_hdrlen(rx->fc) - QOS_CONTROL_LEN;
-		/* frame has qos control */
-		tid = qc[0] & QOS_CONTROL_TID_MASK;
-	} else {
-		if (unlikely((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)) {
-			/* Separate TID for management frames */
-			tid = NUM_RX_DATA_QUEUES - 1;
-		} else {
-			/* no qos control present */
-			tid = 0; /* 802.1d - Best Effort */
-		}
-	}
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
-	I802_DEBUG_INC(rx->local->wme_rx_queue[tid]);
-	if (rx->sta) {
-		I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]);
-	}
-#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
-
-	rx->u.rx.queue = tid;
-	/* Set skb->priority to 1d tag if highest order bit of TID is not set.
-	 * For now, set skb->priority to 0 for other cases. */
-	rx->skb->priority = (tid > 7) ? 0 : tid;
-
-	return TXRX_CONTINUE;
-}
-
-
-ieee80211_txrx_result
-ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
-{
-	u16 fc = rx->fc;
-	u8 *data = rx->skb->data;
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) data;
-
-	if (!WLAN_FC_IS_QOS_DATA(fc))
-		return TXRX_CONTINUE;
-
-	/* remove the qos control field, update frame type and meta-data */
-	memmove(data + 2, data, ieee80211_get_hdrlen(fc) - 2);
-	hdr = (struct ieee80211_hdr *) skb_pull(rx->skb, 2);
-	/* change frame type to non QOS */
-	rx->fc = fc &= ~IEEE80211_STYPE_QOS_DATA;
-	hdr->frame_control = cpu_to_le16(fc);
-
-	return TXRX_CONTINUE;
-}
-
-
-#ifdef CONFIG_NET_SCHED
 /* maximum number of hardware queues we support. */
 #define TC_80211_MAX_QUEUES 8
 
@@ -675,4 +611,3 @@ void ieee80211_wme_unregister(void)
 {
 	unregister_qdisc(&wme_qdisc_ops);
 }
-#endif /* CONFIG_NET_SCHED */

net/mac80211/wme.h

@@ -24,11 +24,10 @@
 
 #define QOS_CONTROL_TAG1D_MASK 0x07
 
-ieee80211_txrx_result
-ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx);
-
-ieee80211_txrx_result
-ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx);
+static inline int WLAN_FC_IS_QOS_DATA(u16 fc)
+{
+	return (fc & 0x8C) == 0x88;
+}
 
 #ifdef CONFIG_NET_SCHED
 void ieee80211_install_qdisc(struct net_device *dev);