Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/// Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE
2/// for debugfs files.
3///
4//# Rationale: DEFINE_SIMPLE_ATTRIBUTE + debugfs_create_file()
5//# imposes some significant overhead as compared to
6//# DEFINE_DEBUGFS_ATTRIBUTE + debugfs_create_file_unsafe().
7//
8// Copyright (C): 2016 Nicolai Stange
9// Options: --no-includes
10//
11
12virtual context
13virtual patch
14virtual org
15virtual report
16
17@dsa@
18declarer name DEFINE_SIMPLE_ATTRIBUTE;
19identifier dsa_fops;
20expression dsa_get, dsa_set, dsa_fmt;
21position p;
22@@
23DEFINE_SIMPLE_ATTRIBUTE@p(dsa_fops, dsa_get, dsa_set, dsa_fmt);
24
25@dcf@
26expression name, mode, parent, data;
27identifier dsa.dsa_fops;
28@@
29debugfs_create_file(name, mode, parent, data, &dsa_fops)
30
31
32@context_dsa depends on context && dcf@
33declarer name DEFINE_DEBUGFS_ATTRIBUTE;
34identifier dsa.dsa_fops;
35expression dsa.dsa_get, dsa.dsa_set, dsa.dsa_fmt;
36@@
37* DEFINE_SIMPLE_ATTRIBUTE(dsa_fops, dsa_get, dsa_set, dsa_fmt);
38
39
40@patch_dcf depends on patch expression@
41expression name, mode, parent, data;
42identifier dsa.dsa_fops;
43@@
44- debugfs_create_file(name, mode, parent, data, &dsa_fops)
45+ debugfs_create_file_unsafe(name, mode, parent, data, &dsa_fops)
46
47@patch_dsa depends on patch_dcf && patch@
48identifier dsa.dsa_fops;
49expression dsa.dsa_get, dsa.dsa_set, dsa.dsa_fmt;
50@@
51- DEFINE_SIMPLE_ATTRIBUTE(dsa_fops, dsa_get, dsa_set, dsa_fmt);
52+ DEFINE_DEBUGFS_ATTRIBUTE(dsa_fops, dsa_get, dsa_set, dsa_fmt);
53
54
55@script:python depends on org && dcf@
56fops << dsa.dsa_fops;
57p << dsa.p;
58@@
59msg="%s should be defined with DEFINE_DEBUGFS_ATTRIBUTE" % (fops)
60coccilib.org.print_todo(p[0], msg)
61
62@script:python depends on report && dcf@
63fops << dsa.dsa_fops;
64p << dsa.p;
65@@
66msg="WARNING: %s should be defined with DEFINE_DEBUGFS_ATTRIBUTE" % (fops)
67coccilib.report.print_report(p[0], msg)