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authorAmitkumar Karwar <akarwar@marvell.com>2011-04-15 20:50:42 -0700
committerJohn W. Linville <linville@tuxdriver.com>2011-04-19 15:38:04 -0400
commit2be7859f41e9bcef5b15bd23d63e01536344e3df (patch)
tree3c7dcec98f5811731fa4209d9d52d504bc4de036 /drivers
parenta37316586d926a10d66b5585c5d91683d6468f68 (diff)
mwifiex: optimize driver initialization code
1) removal of unnecessary mwifiex_device structure 2) avoid passing adapter pointer to mwifiex_init_sw() 3) remove local variable drv_mode_info in mwifiex_add_card() 4) type change in mwifiex_bss_attr to match mwifiex_private 5) removal of more wordy comments Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/mwifiex/decl.h14
-rw-r--r--drivers/net/wireless/mwifiex/main.c81
-rw-r--r--drivers/net/wireless/mwifiex/main.h2
3 files changed, 33 insertions, 64 deletions
diff --git a/drivers/net/wireless/mwifiex/decl.h b/drivers/net/wireless/mwifiex/decl.h
index 8364b62c329..0e90b0986ed 100644
--- a/drivers/net/wireless/mwifiex/decl.h
+++ b/drivers/net/wireless/mwifiex/decl.h
@@ -113,11 +113,11 @@ struct mwifiex_txinfo {
};
struct mwifiex_bss_attr {
- u32 bss_type;
- u32 frame_type;
- u32 active;
- u32 bss_priority;
- u32 bss_num;
+ u8 bss_type;
+ u8 frame_type;
+ u8 active;
+ u8 bss_priority;
+ u8 bss_num;
};
enum mwifiex_wmm_ac_e {
@@ -126,8 +126,4 @@ enum mwifiex_wmm_ac_e {
WMM_AC_VI,
WMM_AC_VO
} __packed;
-
-struct mwifiex_device {
- struct mwifiex_bss_attr bss_attr[MWIFIEX_MAX_BSS_NUM];
-};
#endif /* !_MWIFIEX_DECL_H_ */
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 2c376dd4ad5..c5971880e7b 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -40,14 +40,10 @@ static char fw_name[32] = DEFAULT_FW_NAME;
/* Supported drv_mode table */
static struct mwifiex_drv_mode mwifiex_drv_mode_tbl[] = {
{
- /* drv_mode */
- .drv_mode = DRV_MODE_STA,
- /* intf number */
- .intf_num = ARRAY_SIZE(mwifiex_bss_sta),
- /* bss_attr */
- .bss_attr = mwifiex_bss_sta,
- }
- ,
+ .drv_mode = DRV_MODE_STA,
+ .intf_num = ARRAY_SIZE(mwifiex_bss_sta),
+ .bss_attr = mwifiex_bss_sta,
+ },
};
/*
@@ -66,13 +62,12 @@ static struct mwifiex_drv_mode mwifiex_drv_mode_tbl[] = {
* proper cleanup before exiting.
*/
static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
- struct mwifiex_device *mdevice, void **padapter)
+ struct mwifiex_drv_mode *drv_mode_ptr)
{
- struct mwifiex_adapter *adapter = NULL;
- u8 i = 0;
+ struct mwifiex_adapter *adapter;
+ int i;
adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL);
- /* Allocate memory for adapter structure */
if (!adapter)
return -1;
@@ -87,14 +82,13 @@ static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
goto error;
adapter->priv_num = 0;
- for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
+ for (i = 0; i < drv_mode_ptr->intf_num; i++) {
adapter->priv[i] = NULL;
- if (!mdevice->bss_attr[i].active)
+ if (!drv_mode_ptr->bss_attr[i].active)
continue;
- /* For valid bss_attr,
- allocate memory for private structure */
+ /* Allocate memory for private structure */
adapter->priv[i] = kzalloc(sizeof(struct mwifiex_private),
GFP_KERNEL);
if (!adapter->priv[i]) {
@@ -104,26 +98,26 @@ static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
}
adapter->priv_num++;
- memset(adapter->priv[i], 0,
- sizeof(struct mwifiex_private));
adapter->priv[i]->adapter = adapter;
/* Save bss_type, frame_type & bss_priority */
- adapter->priv[i]->bss_type = (u8) mdevice->bss_attr[i].bss_type;
+ adapter->priv[i]->bss_type = drv_mode_ptr->bss_attr[i].bss_type;
adapter->priv[i]->frame_type =
- (u8) mdevice->bss_attr[i].frame_type;
+ drv_mode_ptr->bss_attr[i].frame_type;
adapter->priv[i]->bss_priority =
- (u8) mdevice->bss_attr[i].bss_priority;
- if (mdevice->bss_attr[i].bss_type == MWIFIEX_BSS_TYPE_STA)
+ drv_mode_ptr->bss_attr[i].bss_priority;
+
+ if (drv_mode_ptr->bss_attr[i].bss_type == MWIFIEX_BSS_TYPE_STA)
adapter->priv[i]->bss_role = MWIFIEX_BSS_ROLE_STA;
- else if (mdevice->bss_attr[i].bss_type == MWIFIEX_BSS_TYPE_UAP)
+ else if (drv_mode_ptr->bss_attr[i].bss_type ==
+ MWIFIEX_BSS_TYPE_UAP)
adapter->priv[i]->bss_role = MWIFIEX_BSS_ROLE_UAP;
/* Save bss_index & bss_num */
adapter->priv[i]->bss_index = i;
- adapter->priv[i]->bss_num = mdevice->bss_attr[i].bss_num;
+ adapter->priv[i]->bss_num = drv_mode_ptr->bss_attr[i].bss_num;
}
+ adapter->drv_mode = drv_mode_ptr;
- /* Initialize lock variables */
if (mwifiex_init_lock_list(adapter))
goto error;
@@ -131,16 +125,13 @@ static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
adapter->cmd_timer.function = mwifiex_cmd_timeout_func;
adapter->cmd_timer.data = (unsigned long) adapter;
- /* Return pointer of struct mwifiex_adapter */
- *padapter = adapter;
return 0;
error:
dev_dbg(adapter->dev, "info: leave mwifiex_register with error\n");
- /* Free lock variables */
mwifiex_free_lock_list(adapter);
- for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++)
+ for (i = 0; i < drv_mode_ptr->intf_num; i++)
kfree(adapter->priv[i]);
kfree(adapter);
@@ -335,10 +326,9 @@ exit_main_proc:
* and initializing the private structures.
*/
static int
-mwifiex_init_sw(void *card, struct mwifiex_if_ops *if_ops, void **pmwifiex)
+mwifiex_init_sw(void *card, struct mwifiex_if_ops *if_ops)
{
int i;
- struct mwifiex_device device;
struct mwifiex_drv_mode *drv_mode_ptr;
/* find mwifiex_drv_mode entry from mwifiex_drv_mode_tbl */
@@ -355,20 +345,7 @@ mwifiex_init_sw(void *card, struct mwifiex_if_ops *if_ops, void **pmwifiex)
return -1;
}
- memset(&device, 0, sizeof(struct mwifiex_device));
-
- for (i = 0; i < drv_mode_ptr->intf_num; i++) {
- device.bss_attr[i].bss_type =
- drv_mode_ptr->bss_attr[i].bss_type;
- device.bss_attr[i].frame_type =
- drv_mode_ptr->bss_attr[i].frame_type;
- device.bss_attr[i].active = drv_mode_ptr->bss_attr[i].active;
- device.bss_attr[i].bss_priority =
- drv_mode_ptr->bss_attr[i].bss_priority;
- device.bss_attr[i].bss_num = drv_mode_ptr->bss_attr[i].bss_num;
- }
-
- if (mwifiex_register(card, if_ops, &device, pmwifiex))
+ if (mwifiex_register(card, if_ops, drv_mode_ptr))
return -1;
return 0;
@@ -892,21 +869,19 @@ mwifiex_add_card(void *card, struct semaphore *sem,
struct mwifiex_if_ops *if_ops)
{
int i;
- struct mwifiex_adapter *adapter = NULL;
- struct mwifiex_drv_mode *drv_mode_info = &mwifiex_drv_mode_tbl[0];
+ struct mwifiex_adapter *adapter;
if (down_interruptible(sem))
goto exit_sem_err;
- if (mwifiex_init_sw(card, if_ops, (void **) &adapter)) {
+ if (mwifiex_init_sw(card, if_ops)) {
pr_err("%s: software init failed\n", __func__);
goto err_init_sw;
}
- adapter->drv_mode = drv_mode_info;
+ adapter = g_adapter;
adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING;
- /* PnP and power profile */
adapter->surprise_removed = false;
init_waitqueue_head(&adapter->init_wait_q);
adapter->is_suspended = false;
@@ -917,7 +892,6 @@ mwifiex_add_card(void *card, struct semaphore *sem,
adapter->cmd_wait_q.condition = false;
adapter->cmd_wait_q.status = 0;
- /* Create workqueue */
adapter->workqueue = create_workqueue("MWIFIEX_WORK_QUEUE");
if (!adapter->workqueue)
goto err_kmalloc;
@@ -931,13 +905,13 @@ mwifiex_add_card(void *card, struct semaphore *sem,
goto err_registerdev;
}
- /* Init FW and HW */
if (mwifiex_init_hw_fw(adapter)) {
pr_err("%s: firmware init failed\n", __func__);
goto err_init_fw;
}
+
/* Add interfaces */
- for (i = 0; i < drv_mode_info->intf_num; i++) {
+ for (i = 0; i < adapter->drv_mode->intf_num; i++) {
if (!mwifiex_add_interface(adapter, i,
adapter->drv_mode->bss_attr[i].bss_type)) {
goto err_add_intf;
@@ -952,7 +926,6 @@ err_add_intf:
for (i = 0; i < adapter->priv_num; i++)
mwifiex_remove_interface(adapter, i);
err_init_fw:
- /* Unregister device */
pr_debug("info: %s: unregister device\n", __func__);
adapter->if_ops.unregister_dev(adapter);
err_registerdev:
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 2d296dcc210..1b503038270 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -872,7 +872,7 @@ mwifiex_copy_rates(u8 *dest, u32 pos, u8 *src, int len)
*/
static inline struct mwifiex_private *
mwifiex_get_priv_by_id(struct mwifiex_adapter *adapter,
- u32 bss_num, u32 bss_type)
+ u8 bss_num, u8 bss_type)
{
int i;