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
match_irqrestore(const char * fn,struct expression * expr,void * data)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
check_bogus_irqrestore(int id)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