[PATCH v3 01/18] wcn36xx: Clean up wcn36xx_smd_send_beacon

[Bjorn Andersson]

From: Pontus Fuchs <pontus.fu...@gmail.com>

Needed for coming improvements. No functional changes.

Signed-off-by: Pontus Fuchs <pontus.fu...@gmail.com>
[bjorn: restored BEACON_TEMPLATE_SIZE define to 0x180]
Signed-off-by: Bjorn Andersson <bjorn.anders...@linaro.org>
---

Changes since v2:
- Subtract sizeof(beacon_length) instead of modifying BEACON_TEMPLATE_SIZE,
  which is used in other places as well.

 drivers/net/wireless/ath/wcn36xx/hal.h |  5 ++++-
 drivers/net/wireless/ath/wcn36xx/smd.c | 12 +++++-------
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/hal.h 
b/drivers/net/wireless/ath/wcn36xx/hal.h
index b947de0fb2e5..d713204f755d 100644
--- a/drivers/net/wireless/ath/wcn36xx/hal.h
+++ b/drivers/net/wireless/ath/wcn36xx/hal.h
@@ -2884,11 +2884,14 @@ struct update_beacon_rsp_msg {
 struct wcn36xx_hal_send_beacon_req_msg {
        struct wcn36xx_hal_msg_header header;
 
+       /* length of the template + 6. Only qcom knows why */
+       u32 beacon_length6;
+
        /* length of the template. */
        u32 beacon_length;
 
        /* Beacon data. */
-       u8 beacon[BEACON_TEMPLATE_SIZE];
+       u8 beacon[BEACON_TEMPLATE_SIZE - sizeof(u32)];
 
        u8 bssid[ETH_ALEN];
 
diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c 
b/drivers/net/wireless/ath/wcn36xx/smd.c
index 74f56a81ad9a..ff3ed2461a69 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -1380,19 +1380,17 @@ int wcn36xx_smd_send_beacon(struct wcn36xx *wcn, struct 
ieee80211_vif *vif,
        mutex_lock(&wcn->hal_mutex);
        INIT_HAL_MSG(msg_body, WCN36XX_HAL_SEND_BEACON_REQ);
 
-       /* TODO need to find out why this is needed? */
-       msg_body.beacon_length = skb_beacon->len + 6;
+       msg_body.beacon_length = skb_beacon->len;
+       /* TODO need to find out why + 6 is needed */
+       msg_body.beacon_length6 = msg_body.beacon_length + 6;
 
-       if (BEACON_TEMPLATE_SIZE > msg_body.beacon_length) {
-               memcpy(&msg_body.beacon, &skb_beacon->len, sizeof(u32));
-               memcpy(&(msg_body.beacon[4]), skb_beacon->data,
-                      skb_beacon->len);
-       } else {
+       if (msg_body.beacon_length > BEACON_TEMPLATE_SIZE) {
                wcn36xx_err("Beacon is to big: beacon size=%d\n",
                              msg_body.beacon_length);
                ret = -ENOMEM;
                goto out;
        }
+       memcpy(msg_body.beacon, skb_beacon->data, skb_beacon->len);
        memcpy(msg_body.bssid, vif->addr, ETH_ALEN);
 
        /* TODO need to find out why this is needed? */
-- 
2.5.0