diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2024-01-29 19:34:45 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2024-02-08 13:07:37 +0100 |
| commit | c478db84c8544156b80c5e5d3a8c7840d557707a (patch) | |
| tree | e9ffa13e0cb0a7c39e306a45add53b6ffec47492 /include/linux/ieee80211.h | |
| parent | 719036ae06d4bfdb65139e3947a8404dec298bc5 (diff) | |
wifi: mac80211: refactor puncturing bitmap extraction
Add a new inline helper function to ieee80211.h to
extract the disabled subchannels bitmap from an EHT
operation element, and use that in mac80211 where
we do that.
Link: https://msgid.link/20240129194108.d9f50dcec8d0.I8b08cbc2490a734fafcce0fa0fc328211ba6f10b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/linux/ieee80211.h')
| -rw-r--r-- | include/linux/ieee80211.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index a70388ae3a7b..d9d2c1253157 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -3189,6 +3189,22 @@ ieee80211_eht_oper_size_ok(const u8 *data, u8 len) return len >= needed; } +/* must validate ieee80211_eht_oper_size_ok() first */ +static inline u16 +ieee80211_eht_oper_dis_subchan_bitmap(const struct ieee80211_eht_operation *eht_oper) +{ + const struct ieee80211_eht_operation_info *info = + (const void *)eht_oper->optional; + + if (!(eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT)) + return 0; + + if (!(eht_oper->params & IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)) + return 0; + + return get_unaligned_le16(info->optional); +} + #define IEEE80211_BW_IND_DIS_SUBCH_PRESENT BIT(1) struct ieee80211_bandwidth_indication { |