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authorKees Cook <kees@kernel.org>2024-08-12 11:36:38 -0700
committerKees Cook <kees@kernel.org>2024-08-15 09:26:02 -0700
commit0336f898881ae13b92dfd8b72e69ed1246eac762 (patch)
tree3fab5a84f91d0856df216631a6fb8c89268ea26a /scripts
parentf5c1ca3a15fdb867d2b535003f74e0b975eff116 (diff)
coccinelle: Add rules to find str_down_up() replacements
As done with str_up_down(), add checks for str_down_up() opportunities. 5 cases currently exist in the tree. Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240812183637.work.999-kees@kernel.org Reviewed-by: Andy Shevchenko <andy@kernel.org> Signed-off-by: Kees Cook <kees@kernel.org>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/coccinelle/api/string_choices.cocci23
1 files changed, 23 insertions, 0 deletions
diff --git a/scripts/coccinelle/api/string_choices.cocci b/scripts/coccinelle/api/string_choices.cocci
index d517f6bc850b..5e729f187f22 100644
--- a/scripts/coccinelle/api/string_choices.cocci
+++ b/scripts/coccinelle/api/string_choices.cocci
@@ -62,3 +62,26 @@ e << str_up_down_r.E;
@@
coccilib.report.print_report(p[0], "opportunity for str_up_down(%s)" % e)
+
+@str_down_up depends on patch@
+expression E;
+@@
+(
+- ((E) ? "down" : "up")
++ str_down_up(E)
+)
+
+@str_down_up_r depends on !patch exists@
+expression E;
+position P;
+@@
+(
+* ((E@P) ? "down" : "up")
+)
+
+@script:python depends on report@
+p << str_down_up_r.P;
+e << str_down_up_r.E;
+@@
+
+coccilib.report.print_report(p[0], "opportunity for str_down_up(%s)" % e)