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staging: vt6656: Move calling point of vnt_fill_txkey.

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Change vnt_fill_txkey to return true if mic_hdr is needed and
change calling point at where it is to be placed.

tx_buffer is already in tx_context.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/f08a6f07-a77e-0b8e-cb05-505a1f995683@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Malcolm Priestley 2020-05-21 10:54:29 +01:00 committed by Greg Kroah-Hartman
parent 4f1b5df420
commit dc6490b0c5
1 changed files with 95 additions and 96 deletions
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191
drivers/staging/vt6656/rxtx.c
View file

@ -295,94 +295,8 @@ static void vnt_fill_cts_head(struct vnt_usb_send_context *tx_context,
vnt_rxtx_datahead_g(tx_context, &buf->data_head);
}
static void vnt_rxtx_rts(struct vnt_usb_send_context *tx_context,
union vnt_tx_head *tx_head)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb);
struct vnt_rrv_time_rts *buf = &tx_head->tx_rts.rts;
union vnt_tx_data_head *head = &tx_head->tx_rts.tx.head;
buf->rts_rrv_time_aa = vnt_get_rts_duration(tx_context);
buf->rts_rrv_time_ba = buf->rts_rrv_time_aa;
buf->rts_rrv_time_bb = buf->rts_rrv_time_aa;
buf->rrv_time_a = vnt_rxtx_rsvtime_le16(tx_context);
buf->rrv_time_b = buf->rrv_time_a;
if (info->control.hw_key) {
if (info->control.hw_key->cipher == WLAN_CIPHER_SUITE_CCMP)
head = &tx_head->tx_rts.tx.mic.head;
}
vnt_rxtx_rts_g_head(tx_context, &head->rts_g);
}
static void vnt_rxtx_cts(struct vnt_usb_send_context *tx_context,
union vnt_tx_head *tx_head)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb);
struct vnt_rrv_time_cts *buf = &tx_head->tx_cts.cts;
union vnt_tx_data_head *head = &tx_head->tx_cts.tx.head;
buf->rrv_time_a = vnt_rxtx_rsvtime_le16(tx_context);
buf->rrv_time_b = buf->rrv_time_a;
buf->cts_rrv_time_ba = vnt_get_cts_duration(tx_context);
if (info->control.hw_key) {
if (info->control.hw_key->cipher == WLAN_CIPHER_SUITE_CCMP)
head = &tx_head->tx_cts.tx.mic.head;
}
vnt_fill_cts_head(tx_context, head);
}
static void vnt_rxtx_ab(struct vnt_usb_send_context *tx_context,
union vnt_tx_head *tx_head)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb);
struct vnt_rrv_time_ab *buf = &tx_head->tx_ab.ab;
union vnt_tx_data_head *head = &tx_head->tx_ab.tx.head;
buf->rrv_time = vnt_rxtx_rsvtime_le16(tx_context);
if (info->control.hw_key) {
if (info->control.hw_key->cipher == WLAN_CIPHER_SUITE_CCMP)
head = &tx_head->tx_ab.tx.mic.head;
}
if (info->control.use_rts) {
buf->rts_rrv_time = vnt_get_rts_duration(tx_context);
vnt_rxtx_rts_ab_head(tx_context, &head->rts_ab);
return;
}
vnt_rxtx_datahead_ab(tx_context, &head->data_head_ab);
}
static void vnt_generate_tx_parameter(struct vnt_usb_send_context *tx_context,
struct vnt_tx_buffer *tx_buffer)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb);
if (info->control.use_cts_prot) {
if (info->control.use_rts) {
vnt_rxtx_rts(tx_context, &tx_buffer->tx_head);
return;
}
vnt_rxtx_cts(tx_context, &tx_buffer->tx_head);
return;
}
vnt_rxtx_ab(tx_context, &tx_buffer->tx_head);
}
static void vnt_fill_txkey(struct vnt_tx_buffer *tx_buffer, struct sk_buff *skb)
/* returns true if mic_hdr is needed */
static bool vnt_fill_txkey(struct vnt_tx_buffer *tx_buffer, struct sk_buff *skb)
{
struct vnt_tx_fifo_head *fifo = &tx_buffer->fifo_head;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@ -455,10 +369,101 @@ static void vnt_fill_txkey(struct vnt_tx_buffer *tx_buffer, struct sk_buff *skb)
memcpy(fifo->tx_key, tx_key->key, WLAN_KEY_LEN_CCMP);
break;
return true;
default:
break;
}
return false;
}
static void vnt_rxtx_rts(struct vnt_usb_send_context *tx_context)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb);
struct vnt_tx_buffer *tx_buffer = tx_context->tx_buffer;
union vnt_tx_head *tx_head = &tx_buffer->tx_head;
struct vnt_rrv_time_rts *buf = &tx_head->tx_rts.rts;
union vnt_tx_data_head *head = &tx_head->tx_rts.tx.head;
buf->rts_rrv_time_aa = vnt_get_rts_duration(tx_context);
buf->rts_rrv_time_ba = buf->rts_rrv_time_aa;
buf->rts_rrv_time_bb = buf->rts_rrv_time_aa;
buf->rrv_time_a = vnt_rxtx_rsvtime_le16(tx_context);
buf->rrv_time_b = buf->rrv_time_a;
if (info->control.hw_key) {
if (vnt_fill_txkey(tx_buffer, tx_context->skb))
head = &tx_head->tx_rts.tx.mic.head;
}
vnt_rxtx_rts_g_head(tx_context, &head->rts_g);
}
static void vnt_rxtx_cts(struct vnt_usb_send_context *tx_context)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb);
struct vnt_tx_buffer *tx_buffer = tx_context->tx_buffer;
union vnt_tx_head *tx_head = &tx_buffer->tx_head;
struct vnt_rrv_time_cts *buf = &tx_head->tx_cts.cts;
union vnt_tx_data_head *head = &tx_head->tx_cts.tx.head;
buf->rrv_time_a = vnt_rxtx_rsvtime_le16(tx_context);
buf->rrv_time_b = buf->rrv_time_a;
buf->cts_rrv_time_ba = vnt_get_cts_duration(tx_context);
if (info->control.hw_key) {
if (vnt_fill_txkey(tx_buffer, tx_context->skb))
head = &tx_head->tx_cts.tx.mic.head;
}
vnt_fill_cts_head(tx_context, head);
}
static void vnt_rxtx_ab(struct vnt_usb_send_context *tx_context)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb);
struct vnt_tx_buffer *tx_buffer = tx_context->tx_buffer;
union vnt_tx_head *tx_head = &tx_buffer->tx_head;
struct vnt_rrv_time_ab *buf = &tx_head->tx_ab.ab;
union vnt_tx_data_head *head = &tx_head->tx_ab.tx.head;
buf->rrv_time = vnt_rxtx_rsvtime_le16(tx_context);
if (info->control.hw_key) {
if (vnt_fill_txkey(tx_buffer, tx_context->skb))
head = &tx_head->tx_ab.tx.mic.head;
}
if (info->control.use_rts) {
buf->rts_rrv_time = vnt_get_rts_duration(tx_context);
vnt_rxtx_rts_ab_head(tx_context, &head->rts_ab);
return;
}
vnt_rxtx_datahead_ab(tx_context, &head->data_head_ab);
}
static void vnt_generate_tx_parameter(struct vnt_usb_send_context *tx_context)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb);
if (info->control.use_cts_prot) {
if (info->control.use_rts) {
vnt_rxtx_rts(tx_context);
return;
}
vnt_rxtx_cts(tx_context);
return;
}
vnt_rxtx_ab(tx_context);
}
static u16 vnt_get_hdr_size(struct ieee80211_tx_info *info)
@ -621,16 +626,10 @@ 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);
vnt_generate_tx_parameter(tx_context);
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_buffer, skb);
}
priv->seq_counter = (le16_to_cpu(hdr->seq_ctrl) &
IEEE80211_SCTL_SEQ) >> 4;