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wifi: cfg80211: call reg_notifier for self managed wiphy from driver hint

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Currently the regulatory driver does not call the regulatory callback
reg_notifier for self managed wiphys. Sometimes driver needs cfg80211
to calculate the info of ieee80211_channel such as flags and power,
and driver needs to get the info of ieee80211_channel after hint of
driver, but driver does not know when calculation of the info of
ieee80211_channel become finished, so add notify to driver in
reg_process_self_managed_hint() from cfg80211 is a good way, then
driver could get the correct info in callback of reg_notifier.

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Link: https://lore.kernel.org/r/20230201065313.27203-1-quic_wgong@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Wen Gong 2023-02-01 01:53:13 -05:00 committed by Johannes Berg
parent 935ef47b16
commit d99975c495
2 changed files with 6 additions and 0 deletions
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3
include/net/cfg80211.h
View File

@ -4737,6 +4737,8 @@ struct cfg80211_ops {
* complete feature/interface combinations/etc. advertisement. No driver
* should set this flag for now.
* @WIPHY_FLAG_SUPPORTS_EXT_KCK_32: The device supports 32-byte KCK keys.
* @WIPHY_FLAG_NOTIFY_REGDOM_BY_DRIVER: The device could handle reg notify for
* NL80211_REGDOM_SET_BY_DRIVER.
*/
enum wiphy_flags {
WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK = BIT(0),
@ -4762,6 +4764,7 @@ enum wiphy_flags {
WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22),
WIPHY_FLAG_HAS_CHANNEL_SWITCH = BIT(23),
WIPHY_FLAG_NOTIFY_REGDOM_BY_DRIVER = BIT(24),
};
/**

3
net/wireless/reg.c
View File

@ -3160,6 +3160,9 @@ static void reg_process_self_managed_hint(struct wiphy *wiphy)
request.alpha2[1] = regd->alpha2[1];
request.initiator = NL80211_REGDOM_SET_BY_DRIVER;
if (wiphy->flags & WIPHY_FLAG_NOTIFY_REGDOM_BY_DRIVER)
reg_call_notifier(wiphy, &request);
nl80211_send_wiphy_reg_change_event(&request);
}