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cfg80211: introduce sync regdom set API for self-managed

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A self-managed device will sometimes need to set its regdomain synchronously.
Notably it should be set before usermode has a chance to query it. Expose
a new API to accomplish this which requires the RTNL.

Signed-off-by: Arik Nemtsov <[email protected]>
Reviewed-by: Ilan Peer <[email protected]>
Reviewed-by: Emmanuel Grumbach <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
This commit is contained in:
Arik Nemtsov 2015-01-07 16:47:19 +02:00 • committed by Johannes Berg
commit 2c3e861c94
2 changed files with 43 additions and 2 deletions
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31
net/wireless/reg.c
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@ -2897,8 +2897,8 @@ int set_regdom(const struct ieee80211_regdomain *rd)
return 0;
}
int regulatory_set_wiphy_regd(struct wiphy *wiphy,
struct ieee80211_regdomain *rd)
static int __regulatory_set_wiphy_regd(struct wiphy *wiphy,
struct ieee80211_regdomain *rd)
{
const struct ieee80211_regdomain *regd;
const struct ieee80211_regdomain *prev_regd;
@ -2928,12 +2928,39 @@ int regulatory_set_wiphy_regd(struct wiphy *wiphy,
spin_unlock(&reg_requests_lock);
kfree(prev_regd);
return 0;
}
int regulatory_set_wiphy_regd(struct wiphy *wiphy,
struct ieee80211_regdomain *rd)
{
int ret = __regulatory_set_wiphy_regd(wiphy, rd);
if (ret)
return ret;
schedule_work(&reg_work);
return 0;
}
EXPORT_SYMBOL(regulatory_set_wiphy_regd);
int regulatory_set_wiphy_regd_sync_rtnl(struct wiphy *wiphy,
struct ieee80211_regdomain *rd)
{
int ret;
ASSERT_RTNL();
ret = __regulatory_set_wiphy_regd(wiphy, rd);
if (ret)
return ret;
/* process the request immediately */
reg_process_self_managed_hints();
return 0;
}
EXPORT_SYMBOL(regulatory_set_wiphy_regd_sync_rtnl);
void wiphy_regulatory_register(struct wiphy *wiphy)
{
struct regulatory_request *lr;