As requested by Ricardo and Jakub, implement report and context modes
for the secs_to_jiffies Coccinelle script. While here, add the option to
look for opportunities to use secs_to_jiffies() in headers.
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Ricardo Ribalda <ribalda@chromium.org>
Closes: https://lore.kernel.org/all/20250129-secs_to_jiffles-v1-1-35a5e16b9f03@chromium.org/
Closes: https://lore.kernel.org/all/20250221162107.409ae333@kernel.org/
Tested-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Easwar Hariharan <eahariha@linux.microsoft.com>
---
scripts/coccinelle/misc/secs_to_jiffies.cocci | 49 +++++++++++++++++--
1 file changed, 44 insertions(+), 5 deletions(-)
diff --git a/scripts/coccinelle/misc/secs_to_jiffies.cocci b/scripts/coccinelle/misc/secs_to_jiffies.cocci
index 416f348174ca..f3241ce75a7b 100644
--- a/scripts/coccinelle/misc/secs_to_jiffies.cocci
+++ b/scripts/coccinelle/misc/secs_to_jiffies.cocci
@@ -7,26 +7,65 @@
// Confidence: High
// Copyright: (C) 2024 Easwar Hariharan, Microsoft
// Keywords: secs, seconds, jiffies
-//
+// Options: --include-headers
virtual patch
+virtual report
+virtual context
-@depends on patch@ constant C; @@
+@pconst depends on patch@ constant C; @@
- msecs_to_jiffies(C * 1000)
+ secs_to_jiffies(C)
-@depends on patch@ constant C; @@
+@pconstms depends on patch@ constant C; @@
- msecs_to_jiffies(C * MSEC_PER_SEC)
+ secs_to_jiffies(C)
-@depends on patch@ expression E; @@
+@pexpr depends on patch@ expression E; @@
- msecs_to_jiffies(E * 1000)
+ secs_to_jiffies(E)
-@depends on patch@ expression E; @@
+@pexprms depends on patch@ expression E; @@
- msecs_to_jiffies(E * MSEC_PER_SEC)
+ secs_to_jiffies(E)
+
+@r depends on report && !patch@
+constant C;
+expression E;
+position p;
+@@
+
+(
+ msecs_to_jiffies(C@p * 1000)
+|
+ msecs_to_jiffies(C@p * MSEC_PER_SEC)
+|
+ msecs_to_jiffies(E@p * 1000)
+|
+ msecs_to_jiffies(E@p * MSEC_PER_SEC)
+)
+
+@c depends on context && !patch@
+constant C;
+expression E;
+@@
+
+(
+* msecs_to_jiffies(C * 1000)
+|
+* msecs_to_jiffies(C * MSEC_PER_SEC)
+|
+* msecs_to_jiffies(E * 1000)
+|
+* msecs_to_jiffies(E * MSEC_PER_SEC)
+)
+
+@script:python depends on report@
+p << r.p;
+@@
+
+coccilib.report.print_report(p[0], "WARNING opportunity for secs_to_jiffies()")
--
2.43.0