From 480908a7ec5f2d37d5610b7d9bc48a38f2093876 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 15 Oct 2015 12:58:58 +0200 Subject: [PATCH] cfg80211: reg: clarify 'treatment' handling in reg_process_hint() 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 --- net/wireless/reg.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 85cad88..a95fc3a 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -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! */ -- 2.7.4