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Code Issues Releases Wiki Activity

iwlwifi: move rate registration to module load

Browse source 
Having rate registration during module load enables the use of
error checking as well as reliable registration/unregistration
pairing. Previously this was not possible as rate registration
was done during _probe where _probe could be run for more than
one device on the system.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Reinette Chatre 2008-03-28 16:21:09 -07:00 committed by John W. Linville
parent 0359facc7b
commit 897e1cf29e
7 changed files with 46 additions and 20 deletions
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6
drivers/net/wireless/iwlwifi/iwl-3945-rs.c
View file

@ -976,12 +976,12 @@ void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
iwl3945_rates[rs_sta->start_rate].plcp);
}
void iwl3945_rate_control_register(struct ieee80211_hw *hw)
int iwl3945_rate_control_register(void)
{
ieee80211_rate_control_register(&rs_ops);
return ieee80211_rate_control_register(&rs_ops);
}
void iwl3945_rate_control_unregister(struct ieee80211_hw *hw)
void iwl3945_rate_control_unregister(void)
{
ieee80211_rate_control_unregister(&rs_ops);
}

4
drivers/net/wireless/iwlwifi/iwl-3945-rs.h
View file

@ -202,7 +202,7 @@ extern void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
* ieee80211_register_hw
*
*/
extern void iwl3945_rate_control_register(struct ieee80211_hw *hw);
extern int iwl3945_rate_control_register(void);
/**
* iwl3945_rate_control_unregister - Unregister the rate control callbacks
@ -210,6 +210,6 @@ extern void iwl3945_rate_control_register(struct ieee80211_hw *hw);
* This should be called after calling ieee80211_unregister_hw, but before
* the driver is unloaded.
*/
extern void iwl3945_rate_control_unregister(struct ieee80211_hw *hw);
extern void iwl3945_rate_control_unregister(void);
#endif

6
drivers/net/wireless/iwlwifi/iwl-4965-rs.c
View file

@ -2822,12 +2822,12 @@ void iwl4965_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
priv->lq_mngr.lq_ready = 1;
}
void iwl4965_rate_control_register(struct ieee80211_hw *hw)
int iwl4965_rate_control_register(void)
{
ieee80211_rate_control_register(&rs_ops);
return ieee80211_rate_control_register(&rs_ops);
}
void iwl4965_rate_control_unregister(struct ieee80211_hw *hw)
void iwl4965_rate_control_unregister(void)
{
ieee80211_rate_control_unregister(&rs_ops);
}

4
drivers/net/wireless/iwlwifi/iwl-4965-rs.h
View file

@ -288,7 +288,7 @@ extern void iwl4965_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
* ieee80211_register_hw
*
*/
extern void iwl4965_rate_control_register(struct ieee80211_hw *hw);
extern int iwl4965_rate_control_register(void);
/**
* iwl4965_rate_control_unregister - Unregister the rate control callbacks
@ -296,6 +296,6 @@ extern void iwl4965_rate_control_register(struct ieee80211_hw *hw);
* This should be called after calling ieee80211_unregister_hw, but before
* the driver is unloaded.
*/
extern void iwl4965_rate_control_unregister(struct ieee80211_hw *hw);
extern void iwl4965_rate_control_unregister(void);
#endif

1
drivers/net/wireless/iwlwifi/iwl-4965.c
View file

@ -177,7 +177,6 @@ static int iwl4965_init_drv(struct iwl_priv *priv)
goto err_free_channel_map;
}
iwl4965_rate_control_register(priv->hw);
ret = ieee80211_register_hw(priv->hw);
if (ret) {
IWL_ERROR("Failed to register network device (error %d)\n",

23
drivers/net/wireless/iwlwifi/iwl3945-base.c
View file

@ -8156,7 +8156,6 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
goto out_free_channel_map;
}
iwl3945_rate_control_register(priv->hw);
err = ieee80211_register_hw(priv->hw);
if (err) {
IWL_ERROR("Failed to register network device (error %d)\n", err);
@ -8241,7 +8240,6 @@ static void __devexit iwl3945_pci_remove(struct pci_dev *pdev)
if (priv->mac80211_registered) {
ieee80211_unregister_hw(priv->hw);
iwl3945_rate_control_unregister(priv->hw);
}
/*netif_stop_queue(dev); */
@ -8322,21 +8320,35 @@ static int __init iwl3945_init(void)
int ret;
printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
ret = iwl3945_rate_control_register();
if (ret) {
IWL_ERROR("Unable to register rate control algorithm: %d\n", ret);
return ret;
}
ret = pci_register_driver(&iwl3945_driver);
if (ret) {
IWL_ERROR("Unable to initialize PCI module\n");
return ret;
goto error_register;
}
#ifdef CONFIG_IWL3945_DEBUG
ret = driver_create_file(&iwl3945_driver.driver, &driver_attr_debug_level);
if (ret) {
IWL_ERROR("Unable to create driver sysfs file\n");
pci_unregister_driver(&iwl3945_driver);
return ret;
goto error_debug;
}
#endif
return ret;
#ifdef CONFIG_IWL3945_DEBUG
error_debug:
pci_unregister_driver(&iwl3945_driver);
#endif
error_register:
iwl3945_rate_control_unregister();
return ret;
}
static void __exit iwl3945_exit(void)
@ -8345,6 +8357,7 @@ static void __exit iwl3945_exit(void)
driver_remove_file(&iwl3945_driver.driver, &driver_attr_debug_level);
#endif
pci_unregister_driver(&iwl3945_driver);
iwl3945_rate_control_unregister();
}
module_param_named(antenna, iwl3945_param_antenna, int, 0444);

22
drivers/net/wireless/iwlwifi/iwl4965-base.c
View file

@ -8243,7 +8243,6 @@ static void __devexit iwl4965_pci_remove(struct pci_dev *pdev)
if (priv->mac80211_registered) {
ieee80211_unregister_hw(priv->hw);
iwl4965_rate_control_unregister(priv->hw);
}
/*netif_stop_queue(dev); */
@ -8324,21 +8323,35 @@ static int __init iwl4965_init(void)
int ret;
printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
ret = iwl4965_rate_control_register();
if (ret) {
IWL_ERROR("Unable to register rate control algorithm: %d\n", ret);
return ret;
}
ret = pci_register_driver(&iwl4965_driver);
if (ret) {
IWL_ERROR("Unable to initialize PCI module\n");
return ret;
goto error_register;
}
#ifdef CONFIG_IWLWIFI_DEBUG
ret = driver_create_file(&iwl4965_driver.driver, &driver_attr_debug_level);
if (ret) {
IWL_ERROR("Unable to create driver sysfs file\n");
pci_unregister_driver(&iwl4965_driver);
return ret;
goto error_debug;
}
#endif
return ret;
#ifdef CONFIG_IWLWIFI_DEBUG
error_debug:
pci_unregister_driver(&iwl4965_driver);
#endif
error_register:
iwl4965_rate_control_unregister();
return ret;
}
static void __exit iwl4965_exit(void)
@ -8347,6 +8360,7 @@ static void __exit iwl4965_exit(void)
driver_remove_file(&iwl4965_driver.driver, &driver_attr_debug_level);
#endif
pci_unregister_driver(&iwl4965_driver);
iwl4965_rate_control_unregister();
}
module_exit(iwl4965_exit);