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staging: vt6656: Move vnt_mic_hdr pointers to vnt_fill_txkey

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mic_hdr has three possible locations ieee80211_tx_info can controls
these with control.use_cts_prot for rts or cts exchange or otherwise
the rts/data position.

Removing double pointer.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/6420a6ae-82eb-f794-fa7c-bac419222ad6@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Malcolm Priestley 2020-05-21 10:38:26 +01:00 committed by Greg Kroah-Hartman
parent a0b44f1422
commit 272c25c62e
1 changed files with 15 additions and 22 deletions
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37
drivers/staging/vt6656/rxtx.c
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@ -356,40 +356,30 @@ static void vnt_rxtx_ab(struct vnt_usb_send_context *tx_context,
static void vnt_generate_tx_parameter(struct vnt_usb_send_context *tx_context,
struct vnt_tx_buffer *tx_buffer,
struct vnt_mic_hdr **mic_hdr,
u32 need_mic, bool need_rts)
{
if (tx_context->pkt_type == PK_TYPE_11GB ||
tx_context->pkt_type == PK_TYPE_11GA) {
if (need_rts) {
if (need_mic)
*mic_hdr =
&tx_buffer->tx_head.tx_rts.tx.mic.hdr;
vnt_rxtx_rts(tx_context, &tx_buffer->tx_head, need_mic);
return;
}
if (need_mic)
*mic_hdr = &tx_buffer->tx_head.tx_cts.tx.mic.hdr;
vnt_rxtx_cts(tx_context, &tx_buffer->tx_head, need_mic);
return;
}
if (need_mic)
*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
vnt_rxtx_ab(tx_context, &tx_buffer->tx_head, need_rts, need_mic);
}
static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context,
static void vnt_fill_txkey(struct vnt_tx_buffer *tx_buffer,
u8 *key_buffer, struct ieee80211_key_conf *tx_key,
struct sk_buff *skb, u16 payload_len,
struct vnt_mic_hdr *mic_hdr)
struct sk_buff *skb, u16 payload_len)
{
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;
u8 *iv = ((u8 *)hdr + ieee80211_get_hdrlen_from_skb(skb));
@ -416,9 +406,14 @@ static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context,
break;
case WLAN_CIPHER_SUITE_CCMP:
if (!mic_hdr)
return;
if (info->control.use_cts_prot) {
if (info->control.use_rts)
mic_hdr = &tx_buffer->tx_head.tx_rts.tx.mic.hdr;
else
mic_hdr = &tx_buffer->tx_head.tx_cts.tx.mic.hdr;
} else {
mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
}
mic_hdr->id = 0x59;
mic_hdr->payload_len = cpu_to_be16(payload_len);
@ -497,7 +492,6 @@ int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
struct ieee80211_rate *rate;
struct ieee80211_key_conf *tx_key;
struct ieee80211_hdr *hdr;
struct vnt_mic_hdr *mic_hdr = NULL;
struct vnt_tx_buffer *tx_buffer;
struct vnt_tx_fifo_head *tx_buffer_head;
struct vnt_usb_send_context *tx_context;
@ -624,16 +618,15 @@ int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
tx_buffer_head->current_rate = cpu_to_le16(rate->hw_value);
vnt_generate_tx_parameter(tx_context, tx_buffer, &mic_hdr,
need_mic, need_rts);
vnt_generate_tx_parameter(tx_context, tx_buffer, need_mic, need_rts);
tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_NONFRAG);
if (info->control.hw_key) {
tx_key = info->control.hw_key;
if (tx_key->keylen > 0)
vnt_fill_txkey(tx_context, tx_buffer_head->tx_key,
tx_key, skb, tx_body_size, mic_hdr);
vnt_fill_txkey(tx_buffer, tx_buffer_head->tx_key,
tx_key, skb, tx_body_size);
}
priv->seq_counter = (le16_to_cpu(hdr->seq_ctrl) &