Eric Lee / smarc-fsl-linux-kernel

Commit 0426a97c4b672166cbcfdc7b18466d4f207f7a36

Authored by Nicolas Palix 15 years ago

Committed by Michal Marek 15 years ago

Exists in master and in 39 other branches

Coccinelle: Add api/memdup.cocci

Use kmemdup rather than duplicating its implementation

Signed-off-by: Nicolas Palix <npalix@diku.dk>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Michal Marek <mmarek@suse.cz>

Showing 1 changed file with 40 additions and 0 deletions Side-by-side Diff

scripts/coccinelle/api/memdup.cocci

scripts/coccinelle/api/memdup.cocci

Diff comments View file @ 0426a97

	1	+/// Use kmemdup rather than duplicating its implementation
	2	+///
	3	+// Confidence: High
	4	+// Copyright: (C) 2010 Nicolas Palix, DIKU. GPLv2.
	5	+// Copyright: (C) 2010 Julia Lawall, DIKU. GPLv2.
	6	+// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6. GPLv2.
	7	+// URL: http://coccinelle.lip6.fr/
	8	+// Comments:
	9	+// Options: -no_includes -include_headers
	10	+
	11	+virtual patch
	12	+
	13	+@r1@
	14	+expression from,to;
	15	+expression flag;
	16	+position p;
	17	+@@
	18	+
	19	+ to = \(kmalloc@p\\|kzalloc@p\)(strlen(from) + 1,flag);
	20	+
	21	+@r2@
	22	+expression x,from,to;
	23	+expression flag,E1;
	24	+position p;
	25	+@@
	26	+
	27	+ x = strlen(from) + 1;
	28	+ ... when != \( x = E1 \\| from = E1 \)
	29	+ to = \(kmalloc@p\\|kzalloc@p\)(x,flag);
	30	+
	31	+@@
	32	+expression from,to,size,flag;
	33	+position p != {r1.p,r2.p};
	34	+statement S;
	35	+@@
	36	+
	37	+- to = \(kmalloc@p\\|kzalloc@p\)(size,flag);
	38	++ to = kmemdup(from,size,flag);
	39	+ if (to==NULL \|\| ...) S
	40	+- memcpy(to, from, size);