diff mbox series

[RFC,06/24] checkpatch: Warn about capability_unsafe() without comment

Message ID 20250206181711.1902989-7-elver@google.com
State New
Headers show
Series Compiler-Based Capability- and Locking-Analysis | expand

Commit Message

Marco Elver Feb. 6, 2025, 6:10 p.m. UTC 
Warn about applications of capability_unsafe() without a comment, to
encourage documenting the reasoning behind why it was deemed safe.

Signed-off-by: Marco Elver <elver@google.com>
---
 scripts/checkpatch.pl | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 7b28ad331742..c28efdb1d404 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -6693,6 +6693,14 @@  sub process {
 			}
 		}
 
+# check for capability_unsafe without a comment.
+		if ($line =~ /\bcapability_unsafe\b/) {
+			if (!ctx_has_comment($first_line, $linenr)) {
+				WARN("CAPABILITY_UNSAFE",
+				     "capability_unsafe without comment\n" . $herecurr);
+			}
+		}
+
 # check of hardware specific defines
 		if ($line =~ m@^.\s*\#\s*if.*\b(__i386__|__powerpc64__|__sun__|__s390x__)\b@ && $realfile !~ m@include/asm-@) {
 			CHK("ARCH_DEFINES",