[toup] fix DPP build warnings

Fix build warnings from hostap original code when DPP enabled.

Signed-off-by: Fengming Ye <[email protected]>

Author: fengming-ye

src/common/dpp.c

@@ -3290,7 +3290,7 @@ enum dpp_status_error dpp_conf_result_rx(struct dpp_authentication *auth,
 	size_t len[2];
 	u8 *unwrapped = NULL;
 	size_t unwrapped_len = 0;
-	enum dpp_status_error ret = 256;
+	enum dpp_status_error ret = 255;
 
 	wrapped_data = dpp_get_attr(attr_start, attr_len, DPP_ATTR_WRAPPED_DATA,
 				    &wrapped_data_len);
@@ -3444,7 +3444,7 @@ enum dpp_status_error dpp_conn_status_result_rx(struct dpp_authentication *auth,
 	size_t len[2];
 	u8 *unwrapped = NULL;
 	size_t unwrapped_len = 0;
-	enum dpp_status_error ret = 256;
+	enum dpp_status_error ret = 255;
 	struct json_token *root = NULL, *token;
 	struct wpabuf *ssid64;
 

src/common/dpp_auth.c

@@ -875,7 +875,7 @@ dpp_auth_req_rx(struct dpp_global *dpp, void *msg_ctx, u8 dpp_allowed_roles,
 		wpa_printf(MSG_DEBUG, "DPP: Unexpected role in I-capabilities");
 		wpa_msg(auth->msg_ctx, MSG_INFO,
 			DPP_EVENT_FAIL "Invalid role in I-capabilities 0x%02x",
-			auth->i_capab & DPP_CAPAB_ROLE_MASK);
+			(u8)(auth->i_capab & DPP_CAPAB_ROLE_MASK));
 		goto fail;
 	}