1// SPDX-License-Identifier: GPL-2.0-only
 2/// Use kmemdup rather than duplicating its implementation
 3///
 4// Confidence: High
 5// Copyright: (C) 2010-2012 Nicolas Palix.
 6// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
 7// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
 8// URL: https://coccinelle.gitlabpages.inria.fr/website
 9// Comments:
10// Options: --no-includes --include-headers
11
12virtual patch
13virtual context
14virtual org
15virtual report
16
17@r1@
18expression from,to;
19expression flag;
20position p;
21@@
22
23   to = \(kmalloc@p\|kzalloc@p\)(strlen(from) + 1,flag);
24
25@r2@
26expression x,from,to;
27expression flag,E1;
28position p;
29@@
30
31    x = strlen(from) + 1;
32    ... when != \( x = E1 \| from = E1 \)
33    to = \(kmalloc@p\|kzalloc@p\)(x,flag);
34
35@depends on patch@
36expression from,to,size,flag;
37position p != {r1.p,r2.p};
38statement S;
39@@
40
41-  to = \(kmalloc@p\|kzalloc@p\)(size,flag);
42+  to = kmemdup(from,size,flag);
43   if (to==NULL || ...) S
44-  memcpy(to, from, size);
45
46@r depends on !patch@
47expression from,to,size,flag;
48position p != {r1.p,r2.p};
49statement S;
50@@
51
52*  to = \(kmalloc@p\|kzalloc@p\)(size,flag);
 
53   if (to==NULL || ...) S
54*  memcpy(to, from, size);
55
56@script:python depends on org@
57p << r.p;
58@@
59
60coccilib.org.print_todo(p[0], "WARNING opportunity for kmemdup")
61
62@script:python depends on report@
63p << r.p;
64@@
65
66coccilib.report.print_report(p[0], "WARNING opportunity for kmemdup")

 
 1/// Use kmemdup rather than duplicating its implementation
 2///
 3// Confidence: High
 4// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
 5// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
 6// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 7// URL: http://coccinelle.lip6.fr/
 8// Comments:
 9// Options: -no_includes -include_headers
10
11virtual patch
12virtual context
13virtual org
14virtual report
15
16@r1@
17expression from,to;
18expression flag;
19position p;
20@@
21
22   to = \(kmalloc@p\|kzalloc@p\)(strlen(from) + 1,flag);
23
24@r2@
25expression x,from,to;
26expression flag,E1;
27position p;
28@@
29
30    x = strlen(from) + 1;
31    ... when != \( x = E1 \| from = E1 \)
32    to = \(kmalloc@p\|kzalloc@p\)(x,flag);
33
34@depends on patch@
35expression from,to,size,flag;
36position p != {r1.p,r2.p};
37statement S;
38@@
39
40-  to = \(kmalloc@p\|kzalloc@p\)(size,flag);
41+  to = kmemdup(from,size,flag);
42   if (to==NULL || ...) S
43-  memcpy(to, from, size);
44
45@r depends on !patch@
46expression from,to,size,flag;
47position p != {r1.p,r2.p};
48statement S;
49@@
50
51*  to = \(kmalloc@p\|kzalloc@p\)(size,flag);
52   to = kmemdup(from,size,flag);
53   if (to==NULL || ...) S
54*  memcpy(to, from, size);
55
56@script:python depends on org@
57p << r.p;
58@@
59
60coccilib.org.print_todo(p[0], "WARNING opportunity for kmemdep")
61
62@script:python depends on report@
63p << r.p;
64@@
65
66coccilib.report.print_report(p[0], "WARNING opportunity for kmemdep")