1 /* 2 * Copyright (C) 2011 Oracle. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * as published by the Free Software Foundation; either version 2 7 * of the License, or (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, see http://www.gnu.org/copyleft/gpl.txt 16 */ 17 18 #include "smatch.h" 19 20 static int my_id; 21 22 static void match_irqrestore(const char *fn, struct expression *expr, void *data) 23 { 24 struct expression *arg_expr; 25 sval_t tmp; 26 27 arg_expr = get_argument_from_call_expr(expr->args, 1); 28 if (!get_implied_value(arg_expr, &tmp)) 29 return; 30 sm_error("calling '%s()' with bogus flags", fn); 31 } 32 33 void check_bogus_irqrestore(int id) 34 { 35 if (option_project != PROJ_KERNEL) 36 return; 37 38 my_id = id; 39 add_function_hook("spin_unlock_irqrestore", &match_irqrestore, NULL); 40 } 41