diff --git a/net/wireless/core.h b/net/wireless/core.h
index a570ff9214e..17a80bf8ee1 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -408,6 +408,7 @@ void cfg80211_sme_failed_assoc(struct wireless_dev *wdev);
 bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev);
 
 /* internal helpers */
+bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
 int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
 				   struct key_params *params, int key_idx,
 				   bool pairwise, const u8 *mac_addr);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index a868e47b0e7..1a84262f634 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3947,17 +3947,6 @@ static bool nl80211_valid_wpa_versions(u32 wpa_versions)
 				  NL80211_WPA_VERSION_2));
 }
 
-static bool nl80211_valid_cipher_suite(u32 cipher)
-{
-	return cipher == WLAN_CIPHER_SUITE_WEP40 ||
-		cipher == WLAN_CIPHER_SUITE_WEP104 ||
-		cipher == WLAN_CIPHER_SUITE_TKIP ||
-		cipher == WLAN_CIPHER_SUITE_CCMP ||
-		cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
-		cipher == WLAN_CIPHER_SUITE_SMS4;
-}
-
-
 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
@@ -4090,15 +4079,17 @@ static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
 		memcpy(settings->ciphers_pairwise, data, len);
 
 		for (i = 0; i < settings->n_ciphers_pairwise; i++)
-			if (!nl80211_valid_cipher_suite(
-					settings->ciphers_pairwise[i]))
+			if (!cfg80211_supported_cipher_suite(
+				&rdev->wiphy,
+				settings->ciphers_pairwise[i]))
 				return -EINVAL;
 	}
 
 	if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
 		settings->cipher_group =
 			nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
-		if (!nl80211_valid_cipher_suite(settings->cipher_group))
+		if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
+					settings->cipher_group))
 			return -EINVAL;
 	}
 
diff --git a/net/wireless/util.c b/net/wireless/util.c
index c00a51145ad..c69e6532ab4 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -150,12 +150,19 @@ void ieee80211_set_bitrate_flags(struct wiphy *wiphy)
 			set_mandatory_flags_band(wiphy->bands[band], band);
 }
 
+bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher)
+{
+	int i;
+	for (i = 0; i < wiphy->n_cipher_suites; i++)
+		if (cipher == wiphy->cipher_suites[i])
+			return true;
+	return false;
+}
+
 int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
 				   struct key_params *params, int key_idx,
 				   bool pairwise, const u8 *mac_addr)
 {
-	int i;
-
 	if (key_idx > 5)
 		return -EINVAL;
 
@@ -229,10 +236,7 @@ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
 		}
 	}
 
-	for (i = 0; i < rdev->wiphy.n_cipher_suites; i++)
-		if (params->cipher == rdev->wiphy.cipher_suites[i])
-			break;
-	if (i == rdev->wiphy.n_cipher_suites)
+	if (!cfg80211_supported_cipher_suite(&rdev->wiphy, params->cipher))
 		return -EINVAL;
 
 	return 0;