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cfg80211: warn when wiphy_apply_custom_regulatory() does nothing

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Device drivers using wiphy_apply_custom_regulatory() want some
regulatory settings applied to their wiphy, if no bands were
configured on the wiphy then something went wrong.

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 2009-05-19 17:49:47 -04:00 committed by John W. Linville
parent eeddfd9db3
commit bbcf3f0277
1 changed files with 11 additions and 2 deletions
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11
net/wireless/reg.c
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@ -1344,13 +1344,22 @@ void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
const struct ieee80211_regdomain *regd)
{
enum ieee80211_band band;
unsigned int bands_set = 0;
mutex_lock(&cfg80211_mutex);
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
if (wiphy->bands[band])
if (!wiphy->bands[band])
continue;
handle_band_custom(wiphy, band, regd);
bands_set++;
}
mutex_unlock(&cfg80211_mutex);
/*
* no point in calling this if it won't have any effect
* on your device's supportd bands.
*/
WARN_ON(!bands_set);
}
EXPORT_SYMBOL(wiphy_apply_custom_regulatory);