mwifiex: remove unnecessary struct mwifiex_opt_sleep_confirm_buffer

The structure definition is
struct mwifiex_opt_sleep_confirm_buffer {
       u8 hdr[4];
       struct mwifiex_opt_sleep_confirm ps_cfm_sleep;
} __packed;

For sleep_confirm command we already reserve 4 bytes (using skb_reserve())
for an interface header. It will be filled later by interface specific code.
We don't need "hdr[4]" element in above structure. So we can use
"struct mwifiex_opt_sleep_confirm" directly instead of
"struct mwifiex_opt_sleep_confirm_buffer".

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 20 insertions, 28 deletions

diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c
index 1c8b4f7cba47..5c7539932c27 100644
--- a/drivers/net/wireless/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/mwifiex/cmdevt.c
@@ -223,24 +223,23 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv,
 static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter *adapter)
 {
         int ret;
-        u16 cmd_len;
         struct mwifiex_private *priv;
-        struct mwifiex_opt_sleep_confirm_buffer *sleep_cfm_buf =
-                                (struct mwifiex_opt_sleep_confirm_buffer *)
+        struct mwifiex_opt_sleep_confirm *sleep_cfm_buf =
+                                (struct mwifiex_opt_sleep_confirm *)
                                 adapter->sleep_cfm->data;
-        cmd_len = sizeof(struct mwifiex_opt_sleep_confirm);
         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 
-        sleep_cfm_buf->ps_cfm_sleep.seq_num =
+        sleep_cfm_buf->seq_num =
                 cpu_to_le16((HostCmd_SET_SEQ_NO_BSS_INFO
                                         (adapter->seq_num, priv->bss_num,
                                          priv->bss_type)));
         adapter->seq_num++;
 
+        skb_push(adapter->sleep_cfm, INTF_HEADER_LEN);
         ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD,
                                              adapter->sleep_cfm->data,
-                                             adapter->sleep_cfm->len +
-                                             INTF_HEADER_LEN, NULL);
+                                             adapter->sleep_cfm->len, NULL);
+        skb_pull(adapter->sleep_cfm, INTF_HEADER_LEN);
 
         if (ret == -1) {
                 dev_err(adapter->dev, "SLEEP_CFM: failed\n");
@@ -249,14 +248,14 @@ static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter *adapter)
         }
         if (GET_BSS_ROLE(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY))
                         == MWIFIEX_BSS_ROLE_STA) {
-                if (!sleep_cfm_buf->ps_cfm_sleep.resp_ctrl)
+                if (!sleep_cfm_buf->resp_ctrl)
                         /* Response is not needed for sleep
                            confirm command */
                         adapter->ps_state = PS_STATE_SLEEP;
                 else
                         adapter->ps_state = PS_STATE_SLEEP_CFM;
 
-                if (!sleep_cfm_buf->ps_cfm_sleep.resp_ctrl
+                if (!sleep_cfm_buf->resp_ctrl
                                 && (adapter->is_hs_configured
                                         && !adapter->sleep_period.period)) {
                         adapter->pm_wakeup_card_req = true;
diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index 6d1c4545eda6..c6b26819cd38 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -1198,9 +1198,4 @@ struct mwifiex_opt_sleep_confirm {
         __le16 action;
         __le16 resp_ctrl;
 } __packed;
-
-struct mwifiex_opt_sleep_confirm_buffer {
-        u8 hdr[4];
-        struct mwifiex_opt_sleep_confirm ps_cfm_sleep;
-} __packed;
 #endif /* !_MWIFIEX_FW_H_ */
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index 6a8fd9989a23..3f1559e61320 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -175,7 +175,7 @@ static int mwifiex_allocate_adapter(struct mwifiex_adapter *adapter)
         }
 
         adapter->sleep_cfm =
-                dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm_buffer)
+                dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm)
                                 + INTF_HEADER_LEN);
 
         if (!adapter->sleep_cfm) {
@@ -197,10 +197,10 @@ static int mwifiex_allocate_adapter(struct mwifiex_adapter *adapter)
  */
 static void mwifiex_init_adapter(struct mwifiex_adapter *adapter)
 {
-        struct mwifiex_opt_sleep_confirm_buffer *sleep_cfm_buf = NULL;
+        struct mwifiex_opt_sleep_confirm *sleep_cfm_buf = NULL;
 
-        skb_put(adapter->sleep_cfm, sizeof(sleep_cfm_buf->ps_cfm_sleep));
-        sleep_cfm_buf = (struct mwifiex_opt_sleep_confirm_buffer *)
+        skb_put(adapter->sleep_cfm, sizeof(struct mwifiex_opt_sleep_confirm));
+        sleep_cfm_buf = (struct mwifiex_opt_sleep_confirm *)
                                                 (adapter->sleep_cfm->data);
 
         adapter->cmd_sent = false;
@@ -268,16 +268,14 @@ static void mwifiex_init_adapter(struct mwifiex_adapter *adapter)
         mwifiex_wmm_init(adapter);
 
         if (adapter->sleep_cfm) {
-                memset(&sleep_cfm_buf->ps_cfm_sleep, 0,
-                        adapter->sleep_cfm->len);
-                sleep_cfm_buf->ps_cfm_sleep.command =
-                        cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH);
-                sleep_cfm_buf->ps_cfm_sleep.size =
-                        cpu_to_le16(adapter->sleep_cfm->len);
-                sleep_cfm_buf->ps_cfm_sleep.result = 0;
-                sleep_cfm_buf->ps_cfm_sleep.action = cpu_to_le16(SLEEP_CONFIRM);
-                sleep_cfm_buf->ps_cfm_sleep.resp_ctrl =
-                        cpu_to_le16(RESP_NEEDED);
+                memset(sleep_cfm_buf, 0, adapter->sleep_cfm->len);
+                sleep_cfm_buf->command =
+                                cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH);
+                sleep_cfm_buf->size =
+                                cpu_to_le16(adapter->sleep_cfm->len);
+                sleep_cfm_buf->result = 0;
+                sleep_cfm_buf->action = cpu_to_le16(SLEEP_CONFIRM);
+                sleep_cfm_buf->resp_ctrl = cpu_to_le16(RESP_NEEDED);
         }
         memset(&adapter->sleep_params, 0, sizeof(adapter->sleep_params));
         memset(&adapter->sleep_period, 0, sizeof(adapter->sleep_period));