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Re: [PATCH] rtl8192cu : add support to send beacon frame.

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2015-01-21 3:33 GMT+09:00 Larry Finger <Larry.Finger@xxxxxxxxxxxx>:
>
> On 01/20/2015 12:49 AM, Taehee Yoo wrote:
>>
>> In AP mode, beacon frame is necessary to keep connection.
>> this patch adds a sending beacon frame routine in initialize routine.
>>
>> Signed-off-by: Taehee Yoo <ap420073@xxxxxxxxx>
>> ---
>>   drivers/net/wireless/rtlwifi/core.c          |  3 +++
>>   drivers/net/wireless/rtlwifi/rtl8192cu/sw.c  |  1 +
>>   drivers/net/wireless/rtlwifi/rtl8192cu/trx.c | 11 +++++++++++
>>   drivers/net/wireless/rtlwifi/rtl8192cu/trx.h |  1 +
>>   drivers/net/wireless/rtlwifi/wifi.h          |  2 ++
>>   5 files changed, 18 insertions(+)
>
>
> This patch has a couple of issues reported by checkpatch.pl. These are noted inline. It will also have a conflict with "[PATCH V2 for 3.19 2/7] rtlwifi: rtl8192ee: Fix handling of new style descriptors" that I submitted today. As I note later, this conflict can be avoided and the patch should be made more general.
>
>
>>
>> diff --git a/drivers/net/wireless/rtlwifi/core.c b/drivers/net/wireless/rtlwifi/core.c
>> index eb20316..2ebd1fd 100644
>> --- a/drivers/net/wireless/rtlwifi/core.c
>> +++ b/drivers/net/wireless/rtlwifi/core.c
>> @@ -1040,6 +1040,9 @@ static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
>>
>>                                 if (rtlpriv->cfg->ops->linked_set_reg)
>>                                         rtlpriv->cfg->ops->linked_set_reg(hw);
>> +                               if (rtlpriv->cfg->ops->set_bcn_frame)
>> +                                       rtlpriv->cfg->ops->set_bcn_frame(hw,
>> +                                                       vif);
>>                         }
>>                 }
>>                 if ((changed & BSS_CHANGED_BEACON_ENABLED &&
>> diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
>> index 90a714c..d88ee35 100644
>> --- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
>> +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
>> @@ -155,6 +155,7 @@ static struct rtl_hal_ops rtl8192cu_hal_ops = {
>>         .dm_dynamic_txpower = rtl92cu_dm_dynamic_txpower,
>>         .fill_h2c_cmd = rtl92c_fill_h2c_cmd,
>>         .get_btc_status = rtl92cu_get_btc_status,
>> +       .set_bcn_frame = rtl92cu_set_bcn_frame,
>>   };
>>
>>   static struct rtl_mod_params rtl92cu_mod_params = {
>> diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
>> index cbead00..e27da8f 100644
>> --- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
>> +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
>> @@ -684,3 +684,14 @@ bool rtl92cu_cmd_send_packet(struct ieee80211_hw *hw, struct sk_buff *skb)
>>   {
>>         return true;
>>   }
>> +
>> +void rtl92cu_set_bcn_frame(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
>> +{
>> +       struct rtl_priv *rtlpriv = rtl_priv(hw);
>> +       struct sk_buff *skb = ieee80211_beacon_get(hw, vif);
>> +
>> +       if (skb == NULL)
>> +               return;
>
>
> Checkpatch wants this to be "if (!skb)".
>
>> +
>> +       rtlpriv->intf_ops->adapter_tx(hw, NULL, skb, NULL);
>> +}
>> diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.h b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.h
>> index fd8051d..0d57431 100644
>> --- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.h
>> +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.h
>> @@ -431,5 +431,6 @@ void rtl92cu_tx_fill_cmddesc(struct ieee80211_hw *hw,
>>                              u8 *pdesc, bool b_firstseg,
>>                              bool b_lastseg, struct sk_buff *skb);
>>   bool rtl92cu_cmd_send_packet(struct ieee80211_hw *hw, struct sk_buff *skb);
>> +void rtl92cu_set_bcn_frame(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
>>
>>   #endif
>> diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h
>> index b53d9dd..daf8142 100644
>> --- a/drivers/net/wireless/rtlwifi/wifi.h
>> +++ b/drivers/net/wireless/rtlwifi/wifi.h
>> @@ -2182,6 +2182,8 @@ struct rtl_hal_ops {
>>         void (*add_wowlan_pattern)(struct ieee80211_hw *hw,
>>                                    struct rtl_wow_pattern *rtl_pattern,
>>                                    u8 index);
>> +       void (*set_bcn_frame) (struct ieee80211_hw *hw,
>
>
> Checkpatch warns about the space before the function pointer arguments.
>
>> +                              struct ieee80211_vif *vif);
>>   };
>>
>>   struct rtl_intf_ops {
>>
>
> As all of the drivers that use rtlwifi will be helped by this routine, I suggest that you rename your new routine rtl92cu_set_bcn_frame() to send_bcn_frame(), make it static, and add it to core.c just before rtl_op_bss_info_changed(). It can then be called directly, none of the device-specific drivers need be modified, yet all will use it.
>
> Thanks,
>
> Larry
>


I will send a modified patch as rtlwifi.


Thanks!
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