wifi: ipw2x00: Remove unused libipw_rx_any

Commit Message

Dr. David Alan Gilbert Jan. 22, 2025, 2:22 a.m. UTC

From: "Dr. David Alan Gilbert" <[e-mail]>

libipw_rx_any() was added in 2006 by
commit 1a995b45a528 ("[PATCH] ieee80211_rx_any: filter out packets, call
ieee80211_rx or ieee80211_rx_mgt")
as ieee80211_rx_any but is currently unused and I can't find any
sign it was used under either name,

Remove it.

Signed-off-by: Dr. David Alan Gilbert <[e-mail]>
---
 drivers/net/wireless/intel/ipw2x00/libipw.h   |  2 -
 .../net/wireless/intel/ipw2x00/libipw_rx.c    | 91 -------------------
 2 files changed, 93 deletions(-)

Patch

diff --git a/drivers/net/wireless/intel/ipw2x00/libipw.h b/drivers/net/wireless/intel/ipw2x00/libipw.h
index 3c20353e5a41..e031e8692ca6 100644
--- a/drivers/net/wireless/intel/ipw2x00/libipw.h
+++ b/drivers/net/wireless/intel/ipw2x00/libipw.h
@@ -1011,8 +1011,6 @@  netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev);
 void libipw_txb_free(struct libipw_txb *);
 
 /* libipw_rx.c */
-void libipw_rx_any(struct libipw_device *ieee, struct sk_buff *skb,
-		   struct libipw_rx_stats *stats);
 int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,
 	      struct libipw_rx_stats *rx_stats);
 /* make sure to set stats->len */
diff --git a/drivers/net/wireless/intel/ipw2x00/libipw_rx.c b/drivers/net/wireless/intel/ipw2x00/libipw_rx.c
index dc4e91f58bb4..b7bc94f7abd8 100644
--- a/drivers/net/wireless/intel/ipw2x00/libipw_rx.c
+++ b/drivers/net/wireless/intel/ipw2x00/libipw_rx.c
@@ -823,96 +823,6 @@  int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,
 	return 0;
 }
 
-/* Filter out unrelated packets, call libipw_rx[_mgt]
- * This function takes over the skb, it should not be used again after calling
- * this function. */
-void libipw_rx_any(struct libipw_device *ieee,
-		     struct sk_buff *skb, struct libipw_rx_stats *stats)
-{
-	struct libipw_hdr_4addr *hdr;
-	int is_packet_for_us;
-	u16 fc;
-
-	if (ieee->iw_mode == IW_MODE_MONITOR) {
-		if (!libipw_rx(ieee, skb, stats))
-			dev_kfree_skb_irq(skb);
-		return;
-	}
-
-	if (skb->len < sizeof(struct ieee80211_hdr))
-		goto drop_free;
-
-	hdr = (struct libipw_hdr_4addr *)skb->data;
-	fc = le16_to_cpu(hdr->frame_ctl);
-
-	if ((fc & IEEE80211_FCTL_VERS) != 0)
-		goto drop_free;
-
-	switch (fc & IEEE80211_FCTL_FTYPE) {
-	case IEEE80211_FTYPE_MGMT:
-		if (skb->len < sizeof(struct libipw_hdr_3addr))
-			goto drop_free;
-		libipw_rx_mgt(ieee, hdr, stats);
-		dev_kfree_skb_irq(skb);
-		return;
-	case IEEE80211_FTYPE_DATA:
-		break;
-	case IEEE80211_FTYPE_CTL:
-		return;
-	default:
-		return;
-	}
-
-	is_packet_for_us = 0;
-	switch (ieee->iw_mode) {
-	case IW_MODE_ADHOC:
-		/* our BSS and not from/to DS */
-		if (ether_addr_equal(hdr->addr3, ieee->bssid) &&
-		    ((fc & (IEEE80211_FCTL_TODS + IEEE80211_FCTL_FROMDS)) == 0)) {
-			/* promisc: get all */
-			if (ieee->dev->flags & IFF_PROMISC)
-				is_packet_for_us = 1;
-			/* to us */
-			else if (ether_addr_equal(hdr->addr1, ieee->dev->dev_addr))
-				is_packet_for_us = 1;
-			/* mcast */
-			else if (is_multicast_ether_addr(hdr->addr1))
-				is_packet_for_us = 1;
-		}
-		break;
-	case IW_MODE_INFRA:
-		/* our BSS (== from our AP) and from DS */
-		if (ether_addr_equal(hdr->addr2, ieee->bssid) &&
-		    ((fc & (IEEE80211_FCTL_TODS + IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS)) {
-			/* promisc: get all */
-			if (ieee->dev->flags & IFF_PROMISC)
-				is_packet_for_us = 1;
-			/* to us */
-			else if (ether_addr_equal(hdr->addr1, ieee->dev->dev_addr))
-				is_packet_for_us = 1;
-			/* mcast */
-			else if (is_multicast_ether_addr(hdr->addr1)) {
-				/* not our own packet bcasted from AP */
-				if (!ether_addr_equal(hdr->addr3, ieee->dev->dev_addr))
-					is_packet_for_us = 1;
-			}
-		}
-		break;
-	default:
-		/* ? */
-		break;
-	}
-
-	if (is_packet_for_us)
-		if (!libipw_rx(ieee, skb, stats))
-			dev_kfree_skb_irq(skb);
-	return;
-
-drop_free:
-	dev_kfree_skb_irq(skb);
-	ieee->dev->stats.rx_dropped++;
-}
-
 #define MGMT_FRAME_FIXED_PART_LENGTH		0x24
 
 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
@@ -1729,6 +1639,5 @@  void libipw_rx_mgt(struct libipw_device *ieee,
 	}
 }
 
-EXPORT_SYMBOL_GPL(libipw_rx_any);
 EXPORT_SYMBOL(libipw_rx_mgt);
 EXPORT_SYMBOL(libipw_rx);