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cfg80211: reg: clarify 'treatment' handling in reg_process_hint()

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This function can only deal with treatment values OK and ALREADY_SET
so make the callees not return anything else and warn if they do.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2015-10-15 12:58:58 +02:00
parent fd453d3c53
commit 480908a7ec
1 changed files with 9 additions and 7 deletions
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16
net/wireless/reg.c
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@ -2026,14 +2026,13 @@ reg_process_hint_driver(struct wiphy *wiphy,
break;
case REG_REQ_IGNORE:
reg_free_request(driver_request);
return treatment;
return REG_REQ_OK;
case REG_REQ_INTERSECT:
/* fall through */
case REG_REQ_ALREADY_SET:
regd = reg_copy_regd(get_cfg80211_regdom());
if (IS_ERR(regd)) {
reg_free_request(driver_request);
return REG_REQ_IGNORE;
return REG_REQ_OK;
}
tmp = get_wiphy_regdom(wiphy);
@ -2054,7 +2053,7 @@ reg_process_hint_driver(struct wiphy *wiphy,
nl80211_send_reg_change_event(driver_request);
reg_update_last_request(driver_request);
reg_set_request_processed();
return treatment;
return REG_REQ_ALREADY_SET;
}
if (reg_query_database(driver_request))
@ -2128,10 +2127,10 @@ reg_process_hint_country_ie(struct wiphy *wiphy,
case REG_REQ_OK:
break;
case REG_REQ_IGNORE:
/* fall through */
return REG_REQ_OK;
case REG_REQ_ALREADY_SET:
reg_free_request(country_ie_request);
return treatment;
return REG_REQ_ALREADY_SET;
case REG_REQ_INTERSECT:
reg_free_request(country_ie_request);
/*
@ -2139,7 +2138,7 @@ reg_process_hint_country_ie(struct wiphy *wiphy,
* ever want to support it for this case.
*/
WARN_ONCE(1, "Unexpected intersection for country IEs");
return REG_REQ_IGNORE;
return REG_REQ_OK;
}
country_ie_request->intersect = false;
@ -2184,6 +2183,9 @@ static void reg_process_hint(struct regulatory_request *reg_request)
goto out_free;
}
WARN(treatment != REG_REQ_OK && treatment != REG_REQ_ALREADY_SET,
"unexpected treatment value %d\n", treatment);
/* This is required so that the orig_* parameters are saved.
* NOTE: treatment must be set for any case that reaches here!
*/