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Re: [PATCH 2/2] wifi: mac80211: Add missing return value documentation

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On 3/29/24 13:27, Jeff Johnson wrote:
> kernel-doc is reporting some warnings, so fix them:
> 
> % scripts/kernel-doc -Wall -Werror -none include/net/mac80211.h
> include/net/mac80211.h:2056: warning: No description found for return value of 'wdev_to_ieee80211_vif'
> include/net/mac80211.h:2066: warning: No description found for return value of 'ieee80211_vif_to_wdev'
> include/net/mac80211.h:5603: warning: No description found for return value of 'ieee80211_beacon_cntdwn_is_complete'
> include/net/mac80211.h:5968: warning: No description found for return value of 'ieee80211_gtk_rekey_add'
> include/net/mac80211.h:6350: warning: No description found for return value of 'ieee80211_find_sta_by_link_addrs'
> include/net/mac80211.h:6478: warning: No description found for return value of 'ieee80211_txq_airtime_check'
> include/net/mac80211.h:6981: warning: No description found for return value of 'rate_control_set_rates'
> include/net/mac80211.h:7142: warning: No description found for return value of 'ieee80211_tx_prepare_skb'
> include/net/mac80211.h:7156: warning: No description found for return value of 'ieee80211_parse_tx_radiotap'
> include/net/mac80211.h:7277: warning: No description found for return value of 'ieee80211_tx_dequeue'
> include/net/mac80211.h:7292: warning: No description found for return value of 'ieee80211_tx_dequeue_ni'
> include/net/mac80211.h:7324: warning: No description found for return value of 'ieee80211_next_txq'
> include/net/mac80211.h:7405: warning: No description found for return value of 'ieee80211_txq_may_transmit'
> include/net/mac80211.h:7466: warning: No description found for return value of 'ieee80211_calc_rx_airtime'
> include/net/mac80211.h:7480: warning: No description found for return value of 'ieee80211_calc_tx_airtime'
> include/net/mac80211.h:7528: warning: No description found for return value of 'ieee80211_is_tx_data'
> include/net/mac80211.h:7562: warning: No description found for return value of 'ieee80211_set_active_links'
> 17 warnings as Errors
> 
> Signed-off-by: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx>


Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Tested-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

Thanks.


> ---
>  include/net/mac80211.h | 38 ++++++++++++++++++++++++++++++--------
>  1 file changed, 30 insertions(+), 8 deletions(-)
> 
> diff --git a/include/net/mac80211.h b/include/net/mac80211.h
> index e6a11a982ca8..8984ac4359b8 100644
> --- a/include/net/mac80211.h
> +++ b/include/net/mac80211.h
> @@ -2049,7 +2049,7 @@ static inline bool ieee80211_vif_is_mesh(struct ieee80211_vif *vif)
>   * This can be used by mac80211 drivers with direct cfg80211 APIs
>   * (like the vendor commands) that get a wdev.
>   *
> - * Note that this function may return %NULL if the given wdev isn't
> + * Return: pointer to the wdev, or %NULL if the given wdev isn't
>   * associated with a vif that the driver knows about (e.g. monitor
>   * or AP_VLAN interfaces.)
>   */
> @@ -2062,6 +2062,8 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev);
>   * This can be used by mac80211 drivers with direct cfg80211 APIs
>   * (like the vendor commands) that needs to get the wdev for a vif.
>   * This can also be useful to get the netdev associated to a vif.
> + *
> + * Return: pointer to the wdev
>   */
>  struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif);
>  
> @@ -5597,7 +5599,7 @@ void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id);
>   * @vif: &struct ieee80211_vif pointer from the add_interface callback.
>   * @link_id: valid link_id during MLO or 0 for non-MLO
>   *
> - * This function returns whether the countdown reached zero.
> + * Return: %true if the countdown reached 1, %false otherwise
>   */
>  bool ieee80211_beacon_cntdwn_is_complete(struct ieee80211_vif *vif,
>  					 unsigned int link_id);
> @@ -5942,8 +5944,8 @@ void ieee80211_remove_key(struct ieee80211_key_conf *keyconf);
>   * key(s) will be available. These will be needed by mac80211 for proper
>   * RX processing, so this function allows setting them.
>   *
> - * The function returns the newly allocated key structure, which will
> - * have similar contents to the passed key configuration but point to
> + * Return: the newly allocated key structure, which will have
> + * similar contents to the passed key configuration but point to
>   * mac80211-owned memory. In case of errors, the function returns an
>   * ERR_PTR(), use IS_ERR() etc.
>   *
> @@ -6342,6 +6344,8 @@ struct ieee80211_sta *ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw,
>   *	may be %NULL if the link ID is not needed
>   *
>   * Obtain the STA by link address, must use RCU protection.
> + *
> + * Return: pointer to STA if found, otherwise %NULL.
>   */
>  struct ieee80211_sta *
>  ieee80211_find_sta_by_link_addrs(struct ieee80211_hw *hw,
> @@ -6471,8 +6475,8 @@ void ieee80211_sta_register_airtime(struct ieee80211_sta *pubsta, u8 tid,
>   * @hw: pointer obtained from ieee80211_alloc_hw()
>   * @txq: pointer obtained from station or virtual interface
>   *
> - * Return true if the AQL's airtime limit has not been reached and the txq can
> - * continue to send more packets to the device. Otherwise return false.
> + * Return: %true if the AQL's airtime limit has not been reached and the txq can
> + * continue to send more packets to the device. Otherwise return %false.
>   */
>  bool
>  ieee80211_txq_airtime_check(struct ieee80211_hw *hw, struct ieee80211_txq *txq);
> @@ -6975,6 +6979,8 @@ bool rate_usable_index_exists(struct ieee80211_supported_band *sband,
>   * @hw: pointer as obtained from ieee80211_alloc_hw()
>   * @pubsta: &struct ieee80211_sta pointer to the target destination.
>   * @rates: new tx rate set to be used for this station.
> + *
> + * Return: 0 on success. An error code otherwise.
>   */
>  int rate_control_set_rates(struct ieee80211_hw *hw,
>  			   struct ieee80211_sta *pubsta,
> @@ -7135,6 +7141,8 @@ void ieee80211_report_wowlan_wakeup(struct ieee80211_vif *vif,
>   * @band: the band to transmit on
>   * @sta: optional pointer to get the station to send the frame to
>   *
> + * Return: %true if the skb was prepared, %false otherwise
> + *
>   * Note: must be called under RCU lock
>   */
>  bool ieee80211_tx_prepare_skb(struct ieee80211_hw *hw,
> @@ -7151,6 +7159,8 @@ bool ieee80211_tx_prepare_skb(struct ieee80211_hw *hw,
>   *
>   * @skb: packet injected by userspace
>   * @dev: the &struct device of this 802.11 device
> + *
> + * Return: %true if the radiotap header was parsed, %false otherwise
>   */
>  bool ieee80211_parse_tx_radiotap(struct sk_buff *skb,
>  				 struct net_device *dev);
> @@ -7260,7 +7270,7 @@ void ieee80211_unreserve_tid(struct ieee80211_sta *sta, u8 tid);
>   * @txq: pointer obtained from station or virtual interface, or from
>   *	ieee80211_next_txq()
>   *
> - * Returns the skb if successful, %NULL if no frame was available.
> + * Return: the skb if successful, %NULL if no frame was available.
>   *
>   * Note that this must be called in an rcu_read_lock() critical section,
>   * which can only be released after the SKB was handled. Some pointers in
> @@ -7286,6 +7296,8 @@ struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw,
>   * @hw: pointer as obtained from ieee80211_alloc_hw()
>   * @txq: pointer obtained from station or virtual interface, or from
>   *	ieee80211_next_txq()
> + *
> + * Return: the skb if successful, %NULL if no frame was available.
>   */
>  static inline struct sk_buff *ieee80211_tx_dequeue_ni(struct ieee80211_hw *hw,
>  						      struct ieee80211_txq *txq)
> @@ -7317,7 +7329,7 @@ void ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw,
>   * @hw: pointer as obtained from ieee80211_alloc_hw()
>   * @ac: AC number to return packets from.
>   *
> - * Returns the next txq if successful, %NULL if no queue is eligible. If a txq
> + * Return: the next txq if successful, %NULL if no queue is eligible. If a txq
>   * is returned, it should be returned with ieee80211_return_txq() after the
>   * driver has finished scheduling it.
>   */
> @@ -7400,6 +7412,8 @@ ieee80211_return_txq(struct ieee80211_hw *hw, struct ieee80211_txq *txq,
>   *
>   * @hw: pointer as obtained from ieee80211_alloc_hw()
>   * @txq: pointer obtained from station or virtual interface
> + *
> + * Return: %true if transmission is allowed, %false otherwise
>   */
>  bool ieee80211_txq_may_transmit(struct ieee80211_hw *hw,
>  				struct ieee80211_txq *txq);
> @@ -7460,6 +7474,8 @@ void ieee80211_nan_func_match(struct ieee80211_vif *vif,
>   * @status: &struct ieee80211_rx_status containing the transmission rate
>   *          information.
>   * @len: frame length in bytes
> + *
> + * Return: the airtime estimate
>   */
>  u32 ieee80211_calc_rx_airtime(struct ieee80211_hw *hw,
>  			      struct ieee80211_rx_status *status,
> @@ -7474,6 +7490,8 @@ u32 ieee80211_calc_rx_airtime(struct ieee80211_hw *hw,
>   * @hw: pointer as obtained from ieee80211_alloc_hw()
>   * @info: &struct ieee80211_tx_info of the frame.
>   * @len: frame length in bytes
> + *
> + * Return: the airtime estimate
>   */
>  u32 ieee80211_calc_tx_airtime(struct ieee80211_hw *hw,
>  			      struct ieee80211_tx_info *info,
> @@ -7523,6 +7541,8 @@ ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
>   * hardware encapsulation enabled are data frames.
>   *
>   * @skb: the frame to be transmitted.
> + *
> + * Return: %true if @skb is a data frame, %false otherwise
>   */
>  static inline bool ieee80211_is_tx_data(struct sk_buff *skb)
>  {
> @@ -7558,6 +7578,8 @@ static inline bool ieee80211_is_tx_data(struct sk_buff *skb)
>   *  - change_sta_links(0x10) for each affected STA (the AP)
>   *  - assign_vif_chanctx(link_id=4)
>   *  - change_vif_links(0x10)
> + *
> + * Return: 0 on success. An error code otherwise.
>   */
>  int ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links);
>  
> 

-- 
#Randy




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