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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni CC: , , , Jeff Johnson X-Mailer: b4 0.13.0 X-ClientProxiedBy: nalasex01b.na.qualcomm.com (10.47.209.197) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: HThOlePvPvGRIYzgBd5HrNvEXVFBNuHG X-Proofpoint-ORIG-GUID: HThOlePvPvGRIYzgBd5HrNvEXVFBNuHG X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-04-17_19,2024-04-17_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 malwarescore=0 mlxlogscore=999 phishscore=0 adultscore=0 impostorscore=0 priorityscore=1501 lowpriorityscore=0 spamscore=0 mlxscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2404010003 definitions=main-2404180001 Running "scripts/kernel-doc -Wall -Werror -none include/net/cfg80211.h" produces many warnings of the form "warning: No description found for return value of ", so make sure all of them have a Return: clause. In some instances also add a Context: clause. Signed-off-by: Jeff Johnson --- include/net/cfg80211.h | 111 ++++++++++++++++++++++++++++++++++++------------- 1 file changed, 82 insertions(+), 29 deletions(-) --- base-commit: f236464f1db7bea80075e6e31ac70dc6eb80547f change-id: 20240417-cfg80211-kdoc-1064cb55f4a9 diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 1e09329acc42..0112d645a2b4 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1149,6 +1149,8 @@ ieee80211_chandef_max_power(struct cfg80211_chan_def *chandef) * @band_mask: which bands to check on * @prohibited_flags: which channels to not consider usable, * %IEEE80211_CHAN_DISABLED is always taken into account + * + * Return: %true if usable channels found, %false otherwise */ bool cfg80211_any_usable_channels(struct wiphy *wiphy, unsigned long band_mask, @@ -1833,9 +1835,11 @@ enum cfg80211_station_type { * * Utility function for the @change_station driver method. Call this function * with the appropriate station type looking up the station (and checking that - * it exists). It will verify whether the station change is acceptable, and if - * not will return an error code. Note that it may modify the parameters for - * backward compatibility reasons, so don't use them before calling this. + * it exists). It will verify whether the station change is acceptable. + * + * Return: 0 if the change is acceptable, otherwise an error code. Note that + * it may modify the parameters for backward compatibility reasons, so don't + * use them before calling this. */ int cfg80211_check_station_change(struct wiphy *wiphy, struct station_parameters *params, @@ -2229,7 +2233,7 @@ struct cfg80211_sar_capa { * @mac_addr: the mac address of the station of interest * @sinfo: pointer to the structure to fill with the information * - * Returns 0 on success and sinfo is filled with the available information + * Return: 0 on success and sinfo is filled with the available information * otherwise returns a negative error code and the content of sinfo has to be * considered undefined. */ @@ -5334,6 +5338,8 @@ struct wiphy_iftype_ext_capab { * cfg80211_get_iftype_ext_capa - lookup interface type extended capability * @wiphy: the wiphy to look up from * @type: the interface type to look up + * + * Return: The extended capability for the given interface @type, may be %NULL */ const struct wiphy_iftype_ext_capab * cfg80211_get_iftype_ext_capa(struct wiphy *wiphy, enum nl80211_iftype type); @@ -5904,6 +5910,10 @@ int wiphy_register(struct wiphy *wiphy); /** * get_wiphy_regdom - get custom regdomain for the given wiphy * @wiphy: the wiphy to get the regdomain from + * + * Context: Requires any of RTNL, wiphy mutex or RCU protection. + * + * Return: pointer to the regulatory domain associated with the wiphy */ const struct ieee80211_regdomain *get_wiphy_regdom(struct wiphy *wiphy); @@ -6421,6 +6431,8 @@ ieee80211_get_channel(struct wiphy *wiphy, int freq) * * The Preferred Scanning Channels (PSC) are defined in * Draft IEEE P802.11ax/D5.0, 26.17.2.3.3 + * + * Return: %true if channel is a PSC, %false otherwise */ static inline bool cfg80211_channel_is_psc(struct ieee80211_channel *chan) { @@ -6450,8 +6462,8 @@ ieee80211_get_response_rate(struct ieee80211_supported_band *sband, * ieee80211_mandatory_rates - get mandatory rates for a given band * @sband: the band to look for rates in * - * This function returns a bitmap of the mandatory rates for the given - * band, bits are set according to the rate position in the bitrates array. + * Return: a bitmap of the mandatory rates for the given band, bits + * are set according to the rate position in the bitrates array. */ u32 ieee80211_mandatory_rates(struct ieee80211_supported_band *sband); @@ -6665,6 +6677,8 @@ bool ieee80211_get_8023_tunnel_proto(const void *hdr, __be16 *proto); * header to the ethernet header (if present). * * @skb: The 802.3 frame with embedded mesh header + * + * Return: 0 on success. Non-zero on error. */ int ieee80211_strip_8023_mesh_hdr(struct sk_buff *skb); @@ -7043,6 +7057,8 @@ const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy, * * You can use this to map the regulatory request initiator enum to a * proper string representation. + * + * Return: pointer to string representation of the initiator */ const char *reg_initiator_name(enum nl80211_reg_initiator initiator); @@ -7051,6 +7067,8 @@ const char *reg_initiator_name(enum nl80211_reg_initiator initiator); * @wiphy: wiphy for which pre-CAC capability is checked. * * Pre-CAC is allowed only in some regdomains (notable ETSI). + * + * Return: %true if allowed, %false otherwise */ bool regulatory_pre_cac_allowed(struct wiphy *wiphy); @@ -7185,6 +7203,8 @@ static inline void cfg80211_gen_new_bssid(const u8 *bssid, u8 max_bssid, * cfg80211_is_element_inherited - returns if element ID should be inherited * @element: element to check * @non_inherit_element: non inheritance element + * + * Return: %true if should be inherited, %false otherwise */ bool cfg80211_is_element_inherited(const struct element *element, const struct element *non_inherit_element); @@ -7197,6 +7217,8 @@ bool cfg80211_is_element_inherited(const struct element *element, * @sub_elem: current MBSSID subelement (profile) * @merged_ie: location of the merged profile * @max_copy_len: max merged profile length + * + * Return: the number of bytes merged */ size_t cfg80211_merge_profile(const u8 *ie, size_t ielen, const struct element *mbssid_elem, @@ -7224,7 +7246,7 @@ enum cfg80211_bss_frame_type { * @ielen: length of IEs * @band: enum nl80211_band of the channel * - * Returns the channel number, or -1 if none could be determined. + * Return: the channel number, or -1 if none could be determined. */ int cfg80211_get_ies_channel_number(const u8 *ie, size_t ielen, enum nl80211_band band); @@ -7302,6 +7324,8 @@ cfg80211_inform_bss(struct wiphy *wiphy, * @bss_type: type of BSS, see &enum ieee80211_bss_type * @privacy: privacy filter, see &enum ieee80211_privacy * @use_for: indicates which use is intended + * + * Return: Reference-counted BSS on success. %NULL on error. */ struct cfg80211_bss *__cfg80211_get_bss(struct wiphy *wiphy, struct ieee80211_channel *channel, @@ -7322,6 +7346,8 @@ struct cfg80211_bss *__cfg80211_get_bss(struct wiphy *wiphy, * @privacy: privacy filter, see &enum ieee80211_privacy * * This version implies regular usage, %NL80211_BSS_USE_FOR_NORMAL. + * + * Return: Reference-counted BSS on success. %NULL on error. */ static inline struct cfg80211_bss * cfg80211_get_bss(struct wiphy *wiphy, struct ieee80211_channel *channel, @@ -7706,8 +7732,9 @@ int cfg80211_vendor_cmd_reply(struct sk_buff *skb); * cfg80211_vendor_cmd_get_sender - get the current sender netlink ID * @wiphy: the wiphy * - * Return the current netlink port ID in a vendor command handler. - * Valid to call only there. + * Return: the current netlink port ID in a vendor command handler. + * + * Context: May only be called from a vendor command handler */ unsigned int cfg80211_vendor_cmd_get_sender(struct wiphy *wiphy); @@ -8260,6 +8287,8 @@ void cfg80211_tx_mgmt_expired(struct wireless_dev *wdev, u64 cookie, * * @sinfo: the station information * @gfp: allocation flags + * + * Return: 0 on success. Non-zero on error. */ int cfg80211_sinfo_alloc_tid_stats(struct station_info *sinfo, gfp_t gfp); @@ -8777,13 +8806,13 @@ bool cfg80211_reg_can_beacon(struct wiphy *wiphy, * also checks if IR-relaxation conditions apply, to allow beaconing under * more permissive conditions. * - * Requires the wiphy mutex to be held. + * Context: Requires the wiphy mutex to be held. */ bool cfg80211_reg_can_beacon_relax(struct wiphy *wiphy, struct cfg80211_chan_def *chandef, enum nl80211_iftype iftype); -/* +/** * cfg80211_ch_switch_notify - update wdev channel and notify userspace * @dev: the device which switched channels * @chandef: the new channel definition @@ -8796,7 +8825,7 @@ void cfg80211_ch_switch_notify(struct net_device *dev, struct cfg80211_chan_def *chandef, unsigned int link_id); -/* +/** * cfg80211_ch_switch_started_notify - notify channel switch start * @dev: the device on which the channel switch started * @chandef: the future channel definition @@ -8819,7 +8848,7 @@ void cfg80211_ch_switch_started_notify(struct net_device *dev, * @operating_class: the operating class to convert * @band: band pointer to fill * - * Returns %true if the conversion was successful, %false otherwise. + * Return: %true if the conversion was successful, %false otherwise. */ bool ieee80211_operating_class_to_band(u8 operating_class, enum nl80211_band *band); @@ -8831,7 +8860,7 @@ bool ieee80211_operating_class_to_band(u8 operating_class, * @chan: the ieee80211_channel to convert * @chandef: a pointer to the resulting chandef * - * Returns %true if the conversion was successful, %false otherwise. + * Return: %true if the conversion was successful, %false otherwise. */ bool ieee80211_operating_class_to_chandef(u8 operating_class, struct ieee80211_channel *chan, @@ -8843,7 +8872,7 @@ bool ieee80211_operating_class_to_chandef(u8 operating_class, * @chandef: the chandef to convert * @op_class: a pointer to the resulting operating class * - * Returns %true if the conversion was successful, %false otherwise. + * Return: %true if the conversion was successful, %false otherwise. */ bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef, u8 *op_class); @@ -8853,7 +8882,7 @@ bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef, * * @chandef: the chandef to convert * - * Returns the center frequency of chandef (1st segment) in KHz. + * Return: the center frequency of chandef (1st segment) in KHz. */ static inline u32 ieee80211_chandef_to_khz(const struct cfg80211_chan_def *chandef) @@ -8861,7 +8890,7 @@ ieee80211_chandef_to_khz(const struct cfg80211_chan_def *chandef) return MHZ_TO_KHZ(chandef->center_freq1) + chandef->freq1_offset; } -/* +/** * cfg80211_tdls_oper_request - request userspace to perform TDLS operation * @dev: the device on which the operation is requested * @peer: the MAC address of the peer device @@ -8880,11 +8909,11 @@ void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, enum nl80211_tdls_operation oper, u16 reason_code, gfp_t gfp); -/* +/** * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units) * @rate: given rate_info to calculate bitrate from * - * return 0 if MCS index >= 32 + * Return: calculated bitrate */ u32 cfg80211_calculate_bitrate(struct rate_info *rate); @@ -8898,7 +8927,7 @@ u32 cfg80211_calculate_bitrate(struct rate_info *rate); * when the driver wishes to unregister the wdev, e.g. when the hardware device * is unbound from the driver. * - * Requires the RTNL and wiphy mutex to be held. + * Context: Requires the RTNL and wiphy mutex to be held. */ void cfg80211_unregister_wdev(struct wireless_dev *wdev); @@ -8911,7 +8940,9 @@ void cfg80211_unregister_wdev(struct wireless_dev *wdev); * held. Otherwise, both register_netdevice() and register_netdev() are usable * instead as well. * - * Requires the RTNL and wiphy mutex to be held. + * Context: Requires the RTNL and wiphy mutex to be held. + * + * Return: 0 on success. Non-zero on error. */ int cfg80211_register_netdevice(struct net_device *dev); @@ -8924,7 +8955,7 @@ int cfg80211_register_netdevice(struct net_device *dev); * is held. Otherwise, both unregister_netdevice() and unregister_netdev() are * usable instead as well. * - * Requires the RTNL and wiphy mutex to be held. + * Context: Requires the RTNL and wiphy mutex to be held. */ static inline void cfg80211_unregister_netdevice(struct net_device *dev) { @@ -9000,9 +9031,9 @@ int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len, * correctly, if not the result of using this function will not * be ordered correctly either, i.e. it does no reordering. * - * The function returns the offset where the next part of the - * buffer starts, which may be @ielen if the entire (remainder) - * of the buffer should be used. + * Return: The offset where the next part of the buffer starts, which + * may be @ielen if the entire (remainder) of the buffer should be + * used. */ size_t ieee80211_ie_split_ric(const u8 *ies, size_t ielen, const u8 *ids, int n_ids, @@ -9030,9 +9061,9 @@ size_t ieee80211_ie_split_ric(const u8 *ies, size_t ielen, * correctly, if not the result of using this function will not * be ordered correctly either, i.e. it does no reordering. * - * The function returns the offset where the next part of the - * buffer starts, which may be @ielen if the entire (remainder) - * of the buffer should be used. + * Return: The offset where the next part of the buffer starts, which + * may be @ielen if the entire (remainder) of the buffer should be + * used. */ static inline size_t ieee80211_ie_split(const u8 *ies, size_t ielen, const u8 *ids, int n_ids, size_t offset) @@ -9096,6 +9127,8 @@ unsigned int ieee80211_get_num_supported_channels(struct wiphy *wiphy); * This function can be called by the driver to check whether a * combination of interfaces and their types are allowed according to * the interface combinations. + * + * Return: 0 if combinations are allowed. Non-zero on error. */ int cfg80211_check_combinations(struct wiphy *wiphy, struct iface_combination_params *params); @@ -9111,6 +9144,8 @@ int cfg80211_check_combinations(struct wiphy *wiphy, * This function can be called by the driver to check what possible * combinations it fits in at a given moment, e.g. for channel switching * purposes. + * + * Return: 0 on success. Non-zero on error. */ int cfg80211_iter_combinations(struct wiphy *wiphy, struct iface_combination_params *params, @@ -9118,7 +9153,7 @@ int cfg80211_iter_combinations(struct wiphy *wiphy, void *data), void *data); -/* +/** * cfg80211_stop_iface - trigger interface disconnection * * @wiphy: the wiphy @@ -9173,6 +9208,8 @@ static inline void wiphy_ext_feature_set(struct wiphy *wiphy, * * The extended features are flagged in multiple bytes (see * &struct wiphy.@ext_features) + * + * Return: %true if extended feature flag is set, %false otherwise */ static inline bool wiphy_ext_feature_isset(struct wiphy *wiphy, @@ -9294,6 +9331,8 @@ void cfg80211_pmsr_complete(struct wireless_dev *wdev, * Check whether the interface is allowed to operate; additionally, this API * can be used to check iftype against the software interfaces when * check_swif is '1'. + * + * Return: %true if allowed, %false otherwise */ bool cfg80211_iftype_allowed(struct wiphy *wiphy, enum nl80211_iftype iftype, bool is_4addr, u8 check_swif); @@ -9386,6 +9425,8 @@ void cfg80211_bss_flush(struct wiphy *wiphy); * @cmd: the actual event we want to notify * @count: the number of TBTTs until the color change happens * @color_bitmap: representations of the colors that the local BSS is aware of + * + * Return: 0 on success. Non-zero on error. */ int cfg80211_bss_color_notify(struct net_device *dev, enum nl80211_commands cmd, u8 count, @@ -9395,6 +9436,8 @@ int cfg80211_bss_color_notify(struct net_device *dev, * cfg80211_obss_color_collision_notify - notify about bss color collision * @dev: network device * @color_bitmap: representations of the colors that the local BSS is aware of + * + * Return: 0 on success. Non-zero on error. */ static inline int cfg80211_obss_color_collision_notify(struct net_device *dev, u64 color_bitmap) @@ -9409,6 +9452,8 @@ static inline int cfg80211_obss_color_collision_notify(struct net_device *dev, * @count: the number of TBTTs until the color change happens * * Inform the userspace about the color change that has started. + * + * Return: 0 on success. Non-zero on error. */ static inline int cfg80211_color_change_started_notify(struct net_device *dev, u8 count) @@ -9422,6 +9467,8 @@ static inline int cfg80211_color_change_started_notify(struct net_device *dev, * @dev: the device on which the color is switched * * Inform the userspace about the color change that has aborted. + * + * Return: 0 on success. Non-zero on error. */ static inline int cfg80211_color_change_aborted_notify(struct net_device *dev) { @@ -9434,6 +9481,8 @@ static inline int cfg80211_color_change_aborted_notify(struct net_device *dev) * @dev: the device on which the color was switched * * Inform the userspace about the color change that has completed. + * + * Return: 0 on success. Non-zero on error. */ static inline int cfg80211_color_change_notify(struct net_device *dev) { @@ -9477,6 +9526,8 @@ void cfg80211_schedule_channels_check(struct wireless_dev *wdev); * @ppos: read position * @handler: the read handler to call (under wiphy lock) * @data: additional data to pass to the read handler + * + * Return: the number of characters read, or a negative errno */ ssize_t wiphy_locked_debugfs_read(struct wiphy *wiphy, struct file *file, char *buf, size_t bufsize, @@ -9499,6 +9550,8 @@ ssize_t wiphy_locked_debugfs_read(struct wiphy *wiphy, struct file *file, * @count: read count * @handler: the write handler to call (under wiphy lock) * @data: additional data to pass to the write handler + * + * Return: the number of characters written, or a negative errno */ ssize_t wiphy_locked_debugfs_write(struct wiphy *wiphy, struct file *file, char *buf, size_t bufsize,