staging: vt6656: move tx_body_size/payload_len to skb->len

both variables can be removed and replaced with skb->len.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/12e96cb5-a2a5-de3c-ebe7-ca5a4e2b5594@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 2d7a8fc..b916414 100644 (file)
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -384,13 +384,14 @@ static void vnt_generate_tx_parameter(struct vnt_usb_send_context *tx_context,
 
 static void vnt_fill_txkey(struct vnt_tx_buffer *tx_buffer,
                           struct ieee80211_key_conf *tx_key,
-                          struct sk_buff *skb, u16 payload_len)
+                          struct sk_buff *skb)
 {
        struct vnt_tx_fifo_head *fifo = &tx_buffer->fifo_head;
        struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
        struct vnt_mic_hdr *mic_hdr;
        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
        u64 pn64;
+       u16 payload_len = skb->len;
        u8 *iv = ((u8 *)hdr + ieee80211_get_hdrlen_from_skb(skb));
 
        /* strip header and icv len from payload */
@@ -505,7 +506,7 @@ int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
        struct vnt_tx_fifo_head *tx_buffer_head;
        struct vnt_usb_send_context *tx_context;
        unsigned long flags;
-       u16 tx_bytes, tx_header_size, tx_body_size;
+       u16 tx_bytes, tx_header_size;
        u8 pkt_type;
 
        hdr = (struct ieee80211_hdr *)(skb->data);
@@ -546,8 +547,7 @@ int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
        spin_unlock_irqrestore(&priv->lock, flags);
 
        tx_header_size = vnt_get_hdr_size(info);
-       tx_body_size = skb->len;
-       tx_bytes = tx_header_size + tx_body_size;
+       tx_bytes = tx_header_size + skb->len;
        tx_header_size += sizeof(struct vnt_tx_usb_header);
 
        tx_buffer = skb_push(skb, tx_header_size);
@@ -629,7 +629,7 @@ int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
        if (info->control.hw_key) {
                tx_key = info->control.hw_key;
                if (tx_key->keylen > 0)
-                       vnt_fill_txkey(tx_buffer, tx_key, skb, tx_body_size);
+                       vnt_fill_txkey(tx_buffer, tx_key, skb);
        }
 
        priv->seq_counter = (le16_to_cpu(hdr->seq_ctrl) &