From: Hongbo Li <lihongbo22@huawei.com>
Date: Wed, 11 Sep 2024 01:09:24 +0000 (+0800)
Subject: coccinelle: Add rules to find str_write_read() replacements
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=c81ca023c30691dcae543bd770e7a3a4c63263ff;p=users%2Fhch%2Fblock.git

coccinelle: Add rules to find str_write_read() replacements

As other rules done, we add rules for str_write_read()
to check the relative opportunities.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
---

diff --git a/scripts/coccinelle/api/string_choices.cocci b/scripts/coccinelle/api/string_choices.cocci
index 29c507d86ffd..64f04da2e9f4 100644
--- a/scripts/coccinelle/api/string_choices.cocci
+++ b/scripts/coccinelle/api/string_choices.cocci
@@ -260,3 +260,22 @@ e << str_read_write_r.E;
 @@
 
 coccilib.report.print_report(p[0], "opportunity for str_read_write(%s)" % e)
+
+@str_write_read depends on patch@
+expression E;
+@@
+-      ((E) ? "write" : "read")
++      str_write_read(E)
+
+@str_write_read_r depends on !patch exists@
+expression E;
+position P;
+@@
+*      ((E@P) ? "write" : "read")
+
+@script:python depends on report@
+p << str_write_read_r.P;
+e << str_write_read_r.E;
+@@
+
+coccilib.report.print_report(p[0], "opportunity for str_write_read(%s)" % e)