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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>
This commit is contained in:
Amitkumar Karwar 2011-04-15 20:50:42 -07:00 committed by John W. Linville
parent a37316586d
commit 2be7859f41
3 changed files with 33 additions and 64 deletions
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14
drivers/net/wireless/mwifiex/decl.h
View File

@ -113,11 +113,11 @@ struct mwifiex_txinfo {
}; };
struct mwifiex_bss_attr { struct mwifiex_bss_attr {
u32 bss_type; u8 bss_type;
u32 frame_type; u8 frame_type;
u32 active; u8 active;
u32 bss_priority; u8 bss_priority;
u32 bss_num; u8 bss_num;
}; };
enum mwifiex_wmm_ac_e { enum mwifiex_wmm_ac_e {
@ -126,8 +126,4 @@ enum mwifiex_wmm_ac_e {
WMM_AC_VI, WMM_AC_VI,
WMM_AC_VO WMM_AC_VO
} __packed; } __packed;
struct mwifiex_device {
struct mwifiex_bss_attr bss_attr[MWIFIEX_MAX_BSS_NUM];
};
#endif /* !_MWIFIEX_DECL_H_ */ #endif /* !_MWIFIEX_DECL_H_ */

81
drivers/net/wireless/mwifiex/main.c
View File

@ -40,14 +40,10 @@ static char fw_name[32] = DEFAULT_FW_NAME;
/* Supported drv_mode table */ /* Supported drv_mode table */
static struct mwifiex_drv_mode mwifiex_drv_mode_tbl[] = { static struct mwifiex_drv_mode mwifiex_drv_mode_tbl[] = {
{ {
/* drv_mode */ .drv_mode = DRV_MODE_STA,
.drv_mode = DRV_MODE_STA, .intf_num = ARRAY_SIZE(mwifiex_bss_sta),
/* intf number */ .bss_attr = mwifiex_bss_sta,
.intf_num = ARRAY_SIZE(mwifiex_bss_sta), },
/* bss_attr */
.bss_attr = mwifiex_bss_sta,
}
,
}; };
/* /*
@ -66,13 +62,12 @@ static struct mwifiex_drv_mode mwifiex_drv_mode_tbl[] = {
* proper cleanup before exiting. * proper cleanup before exiting.
*/ */
static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops, 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; struct mwifiex_adapter *adapter;
u8 i = 0; int i;
adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL); adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL);
/* Allocate memory for adapter structure */
if (!adapter) if (!adapter)
return -1; return -1;
@ -87,14 +82,13 @@ static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
goto error; goto error;
adapter->priv_num = 0; 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; adapter->priv[i] = NULL;
if (!mdevice->bss_attr[i].active) if (!drv_mode_ptr->bss_attr[i].active)
continue; continue;
/* For valid bss_attr, /* Allocate memory for private structure */
allocate memory for private structure */
adapter->priv[i] = kzalloc(sizeof(struct mwifiex_private), adapter->priv[i] = kzalloc(sizeof(struct mwifiex_private),
GFP_KERNEL); GFP_KERNEL);
if (!adapter->priv[i]) { if (!adapter->priv[i]) {
@ -104,26 +98,26 @@ static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
} }
adapter->priv_num++; adapter->priv_num++;
memset(adapter->priv[i], 0,
sizeof(struct mwifiex_private));
adapter->priv[i]->adapter = adapter; adapter->priv[i]->adapter = adapter;
/* Save bss_type, frame_type & bss_priority */ /* 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 = 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 = adapter->priv[i]->bss_priority =
(u8) mdevice->bss_attr[i].bss_priority; drv_mode_ptr->bss_attr[i].bss_priority;
if (mdevice->bss_attr[i].bss_type == MWIFIEX_BSS_TYPE_STA)
if (drv_mode_ptr->bss_attr[i].bss_type == MWIFIEX_BSS_TYPE_STA)
adapter->priv[i]->bss_role = MWIFIEX_BSS_ROLE_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; adapter->priv[i]->bss_role = MWIFIEX_BSS_ROLE_UAP;
/* Save bss_index & bss_num */ /* Save bss_index & bss_num */
adapter->priv[i]->bss_index = i; 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)) if (mwifiex_init_lock_list(adapter))
goto error; 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.function = mwifiex_cmd_timeout_func;
adapter->cmd_timer.data = (unsigned long) adapter; adapter->cmd_timer.data = (unsigned long) adapter;
/* Return pointer of struct mwifiex_adapter */
*padapter = adapter;
return 0; return 0;
error: error:
dev_dbg(adapter->dev, "info: leave mwifiex_register with error\n"); dev_dbg(adapter->dev, "info: leave mwifiex_register with error\n");
/* Free lock variables */
mwifiex_free_lock_list(adapter); 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->priv[i]);
kfree(adapter); kfree(adapter);
@ -335,10 +326,9 @@ exit_main_proc:
* and initializing the private structures. * and initializing the private structures.
*/ */
static int 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; int i;
struct mwifiex_device device;
struct mwifiex_drv_mode *drv_mode_ptr; struct mwifiex_drv_mode *drv_mode_ptr;
/* find mwifiex_drv_mode entry from mwifiex_drv_mode_tbl */ /* 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; return -1;
} }
memset(&device, 0, sizeof(struct mwifiex_device)); if (mwifiex_register(card, if_ops, drv_mode_ptr))
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))
return -1; return -1;
return 0; return 0;
@ -892,21 +869,19 @@ mwifiex_add_card(void *card, struct semaphore *sem,
struct mwifiex_if_ops *if_ops) struct mwifiex_if_ops *if_ops)
{ {
int i; int i;
struct mwifiex_adapter *adapter = NULL; struct mwifiex_adapter *adapter;
struct mwifiex_drv_mode *drv_mode_info = &mwifiex_drv_mode_tbl[0];
if (down_interruptible(sem)) if (down_interruptible(sem))
goto exit_sem_err; 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__); pr_err("%s: software init failed\n", __func__);
goto err_init_sw; goto err_init_sw;
} }
adapter->drv_mode = drv_mode_info; adapter = g_adapter;
adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING;
/* PnP and power profile */
adapter->surprise_removed = false; adapter->surprise_removed = false;
init_waitqueue_head(&adapter->init_wait_q); init_waitqueue_head(&adapter->init_wait_q);
adapter->is_suspended = false; 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.condition = false;
adapter->cmd_wait_q.status = 0; adapter->cmd_wait_q.status = 0;
/* Create workqueue */
adapter->workqueue = create_workqueue("MWIFIEX_WORK_QUEUE"); adapter->workqueue = create_workqueue("MWIFIEX_WORK_QUEUE");
if (!adapter->workqueue) if (!adapter->workqueue)
goto err_kmalloc; goto err_kmalloc;
@ -931,13 +905,13 @@ mwifiex_add_card(void *card, struct semaphore *sem,
goto err_registerdev; goto err_registerdev;
} }
/* Init FW and HW */
if (mwifiex_init_hw_fw(adapter)) { if (mwifiex_init_hw_fw(adapter)) {
pr_err("%s: firmware init failed\n", __func__); pr_err("%s: firmware init failed\n", __func__);
goto err_init_fw; goto err_init_fw;
} }
/* Add interfaces */ /* 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, if (!mwifiex_add_interface(adapter, i,
adapter->drv_mode->bss_attr[i].bss_type)) { adapter->drv_mode->bss_attr[i].bss_type)) {
goto err_add_intf; goto err_add_intf;
@ -952,7 +926,6 @@ err_add_intf:
for (i = 0; i < adapter->priv_num; i++) for (i = 0; i < adapter->priv_num; i++)
mwifiex_remove_interface(adapter, i); mwifiex_remove_interface(adapter, i);
err_init_fw: err_init_fw:
/* Unregister device */
pr_debug("info: %s: unregister device\n", __func__); pr_debug("info: %s: unregister device\n", __func__);
adapter->if_ops.unregister_dev(adapter); adapter->if_ops.unregister_dev(adapter);
err_registerdev: err_registerdev:

2
drivers/net/wireless/mwifiex/main.h
View File

@ -872,7 +872,7 @@ mwifiex_copy_rates(u8 *dest, u32 pos, u8 *src, int len)
*/ */
static inline struct mwifiex_private * static inline struct mwifiex_private *
mwifiex_get_priv_by_id(struct mwifiex_adapter *adapter, mwifiex_get_priv_by_id(struct mwifiex_adapter *adapter,
u32 bss_num, u32 bss_type) u8 bss_num, u8 bss_type)
{ {
int i; int i;