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cfg80211: ignore consecutive equal regulatory hints 

We ignore regulatory hints for the same alpha2 if we already
have processed the same alpha2 on the current regulatory domain.
For a driver regulatory_hint() this means we copy onto its
wiphy->regd the previously procesed regulatory domain from CRDA
without having to call CRDA again.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2009-01-22 15:05:48 -08:00 committed by John W. Linville
parent 5eebade608
commit e74b1e7fb2
1 changed files with 11 additions and 2 deletions
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13
net/wireless/reg.c
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@ -1080,8 +1080,13 @@ static int ignore_request(struct wiphy *wiphy, enum reg_set_by set_by,
} }
return REG_INTERSECT; return REG_INTERSECT;
case REGDOM_SET_BY_DRIVER: case REGDOM_SET_BY_DRIVER:
if (last_request->initiator == REGDOM_SET_BY_CORE) if (last_request->initiator == REGDOM_SET_BY_CORE) {
return 0; if (is_old_static_regdom(cfg80211_regdomain))
return 0;
if (!alpha2_equal(cfg80211_regdomain->alpha2, alpha2))
return 0;
return -EALREADY;
}
return REG_INTERSECT; return REG_INTERSECT;
case REGDOM_SET_BY_USER: case REGDOM_SET_BY_USER:
if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE)
@ -1101,6 +1106,10 @@ static int ignore_request(struct wiphy *wiphy, enum reg_set_by set_by,
return -EAGAIN; return -EAGAIN;
} }
if (!is_old_static_regdom(cfg80211_regdomain) &&
alpha2_equal(cfg80211_regdomain->alpha2, alpha2))
return -EALREADY;
return 0; return 0;
} }