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cfg80211: never ignore user regulatory hint

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Currently user regulatory hint is ignored if all wiphys
in the system are self managed. But the hint is not ignored
if there is no wiphy in the system. This affects the global
regulatory setting. Global regulatory setting needs to be
maintained so that it can be applied to a new wiphy entering
the system. Therefore, do not ignore user regulatory setting
even if all wiphys in the system are self managed.

Signed-off-by: Amar Singhal <asinghal@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Change-Id: I468fcd3403259b03369e011fa41b003e8ff33d3c
CRs-Fixed: 2276224
Git-commit: e31f6456c01c76f154e1b25cd54df97809a49edb
Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git
Signed-off-by: Amar Singhal <asinghal@codeaurora.org>
This commit is contained in:
Amar Singhal 2018-07-20 12:15:18 -07:00
parent c25026979f
commit f091e9f98b
1 changed files with 3 additions and 25 deletions
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28
net/wireless/reg.c
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@ -1764,7 +1764,9 @@ static void wiphy_update_regulatory(struct wiphy *wiphy,
* as some drivers used this to restore its orig_* reg domain.
*/
if (initiator == NL80211_REGDOM_SET_BY_CORE &&
wiphy->regulatory_flags & REGULATORY_CUSTOM_REG)
wiphy->regulatory_flags & REGULATORY_CUSTOM_REG &&
!(wiphy->regulatory_flags &
REGULATORY_WIPHY_SELF_MANAGED))
reg_call_notifier(wiphy, lr);
return;
}
@ -2262,26 +2264,6 @@ static void notify_self_managed_wiphys(struct regulatory_request *request)
}
}
static bool reg_only_self_managed_wiphys(void)
{
struct cfg80211_registered_device *rdev;
struct wiphy *wiphy;
bool self_managed_found = false;
ASSERT_RTNL();
list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
wiphy = &rdev->wiphy;
if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED)
self_managed_found = true;
else
return false;
}
/* make sure at least one self-managed wiphy exists */
return self_managed_found;
}
/*
* Processes regulatory hints, this is all the NL80211_REGDOM_SET_BY_*
* Regulatory hints come on a first come first serve basis and we
@ -2314,10 +2296,6 @@ static void reg_process_pending_hints(void)
spin_unlock(&reg_requests_lock);
notify_self_managed_wiphys(reg_request);
if (reg_only_self_managed_wiphys()) {
reg_free_request(reg_request);
return;
}
reg_process_hint(reg_request);