ath9k_common: remove ath9k_cmn_padpos

It is equivalent to ieee80211_hdrlen

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

7 files changed, 9 insertions, 26 deletions

diff --git a/drivers/net/wireless/ath/ath9k/common.c b/drivers/net/wireless/ath/ath9k/common.c
index 6c78fe7ca54d..344fdde1d7a3 100644
--- a/drivers/net/wireless/ath/ath9k/common.c
+++ b/drivers/net/wireless/ath/ath9k/common.c
@@ -27,20 +27,6 @@ MODULE_AUTHOR("Atheros Communications");
 MODULE_DESCRIPTION("Shared library for Atheros wireless 802.11n LAN cards.");
 MODULE_LICENSE("Dual BSD/GPL");
 
-int ath9k_cmn_padpos(__le16 frame_control)
-{
-        int padpos = 24;
-        if (ieee80211_has_a4(frame_control)) {
-                padpos += ETH_ALEN;
-        }
-        if (ieee80211_is_data_qos(frame_control)) {
-                padpos += IEEE80211_QOS_CTL_LEN;
-        }
-
-        return padpos;
-}
-EXPORT_SYMBOL(ath9k_cmn_padpos);
-
 int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb)
 {
         struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
diff --git a/drivers/net/wireless/ath/ath9k/common.h b/drivers/net/wireless/ath/ath9k/common.h
index 6102476a65de..207d06995b15 100644
--- a/drivers/net/wireless/ath/ath9k/common.h
+++ b/drivers/net/wireless/ath/ath9k/common.h
@@ -42,7 +42,6 @@
 #define ATH_EP_RND(x, mul)                                              \
         (((x) + ((mul)/2)) / (mul))
 
-int ath9k_cmn_padpos(__le16 frame_control);
 int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);
 void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan,
                                struct ieee80211_channel *chan,
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
index d0ce1f5bba10..f13f458dd656 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
@@ -308,7 +308,7 @@ static void ath9k_htc_send_buffered(struct ath9k_htc_priv *priv,
         while(skb) {
                 hdr = (struct ieee80211_hdr *) skb->data;
 
-                padpos = ath9k_cmn_padpos(hdr->frame_control);
+                padpos = ieee80211_hdrlen(hdr->frame_control);
                 padsize = padpos & 3;
                 if (padsize && skb->len > padpos) {
                         if (skb_headroom(skb) < padsize) {
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 098e3545e512..0743a47cef8f 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -866,7 +866,7 @@ static void ath9k_htc_tx(struct ieee80211_hw *hw,
         hdr = (struct ieee80211_hdr *) skb->data;
 
         /* Add the padding after the header if this is not already done */
-        padpos = ath9k_cmn_padpos(hdr->frame_control);
+        padpos = ieee80211_hdrlen(hdr->frame_control);
         padsize = padpos & 3;
         if (padsize && skb->len > padpos) {
                 if (skb_headroom(skb) < padsize) {
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index 2774dd13c786..6bd0e92ea2aa 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -966,7 +966,7 @@ static bool ath9k_rx_prepare(struct ath9k_htc_priv *priv,
         struct sk_buff *skb = rxbuf->skb;
         struct ath_common *common = ath9k_hw_common(priv->ah);
         struct ath_htc_rx_status *rxstatus;
-        int hdrlen, padpos, padsize;
+        int hdrlen, padsize;
         int last_rssi = ATH_RSSI_DUMMY_MARKER;
         __le16 fc;
 
@@ -996,11 +996,9 @@ static bool ath9k_rx_prepare(struct ath9k_htc_priv *priv,
         fc = hdr->frame_control;
         hdrlen = ieee80211_get_hdrlen_from_skb(skb);
 
-        padpos = ath9k_cmn_padpos(fc);
-
-        padsize = padpos & 3;
-        if (padsize && skb->len >= padpos+padsize+FCS_LEN) {
-                memmove(skb->data + padsize, skb->data, padpos);
+        padsize = hdrlen & 3;
+        if (padsize && skb->len >= hdrlen+padsize+FCS_LEN) {
+                memmove(skb->data + padsize, skb->data, hdrlen);
                 skb_pull(skb, padsize);
         }
 
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index e656e4891568..d7c06af1778d 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -985,7 +985,7 @@ static void ath9k_rx_skb_postprocess(struct ath_common *common,
         hdr = (struct ieee80211_hdr *) skb->data;
         hdrlen = ieee80211_get_hdrlen_from_skb(skb);
         fc = hdr->frame_control;
-        padpos = ath9k_cmn_padpos(hdr->frame_control);
+        padpos = ieee80211_hdrlen(fc);
 
         /* The MAC header is padded to have 32-bit boundary if the
          * packet payload is non-zero. The general calculation for
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 89a64411b82e..94b2ee1220db 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1971,7 +1971,7 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
         }
 
         /* Add the padding after the header if this is not already done */
-        padpos = ath9k_cmn_padpos(hdr->frame_control);
+        padpos = ieee80211_hdrlen(hdr->frame_control);
         padsize = padpos & 3;
         if (padsize && skb->len > padpos) {
                 if (skb_headroom(skb) < padsize)
@@ -2033,7 +2033,7 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
                 /* Frame was ACKed */
                 tx_info->flags |= IEEE80211_TX_STAT_ACK;
 
-        padpos = ath9k_cmn_padpos(hdr->frame_control);
+        padpos = ieee80211_hdrlen(hdr->frame_control);
         padsize = padpos & 3;
         if (padsize && skb->len>padpos+padsize) {
                 /*