| // SPDX-License-Identifier: GPL-2.0-only |
| /// Use kmemdup rather than duplicating its implementation |
| /// |
| // Confidence: High |
| // Copyright: (C) 2010-2012 Nicolas Palix. |
| // Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6. |
| // Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6. |
| // URL: http://coccinelle.lip6.fr/ |
| // Comments: |
| // Options: --no-includes --include-headers |
| |
| virtual patch |
| virtual context |
| virtual org |
| virtual report |
| |
| @r1@ |
| expression from,to; |
| expression flag; |
| position p; |
| @@ |
| |
| to = \(kmalloc@p\|kzalloc@p\)(strlen(from) + 1,flag); |
| |
| @r2@ |
| expression x,from,to; |
| expression flag,E1; |
| position p; |
| @@ |
| |
| x = strlen(from) + 1; |
| ... when != \( x = E1 \| from = E1 \) |
| to = \(kmalloc@p\|kzalloc@p\)(x,flag); |
| |
| @depends on patch@ |
| expression from,to,size,flag; |
| position p != {r1.p,r2.p}; |
| statement S; |
| @@ |
| |
| - to = \(kmalloc@p\|kzalloc@p\)(size,flag); |
| + to = kmemdup(from,size,flag); |
| if (to==NULL || ...) S |
| - memcpy(to, from, size); |
| |
| @r depends on !patch@ |
| expression from,to,size,flag; |
| position p != {r1.p,r2.p}; |
| statement S; |
| @@ |
| |
| * to = \(kmalloc@p\|kzalloc@p\)(size,flag); |
| if (to==NULL || ...) S |
| * memcpy(to, from, size); |
| |
| @script:python depends on org@ |
| p << r.p; |
| @@ |
| |
| coccilib.org.print_todo(p[0], "WARNING opportunity for kmemdup") |
| |
| @script:python depends on report@ |
| p << r.p; |
| @@ |
| |
| coccilib.report.print_report(p[0], "WARNING opportunity for kmemdup") |
