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checkpatch: Warn about context_unsafe() without comment

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Warn about applications of context_unsafe() without a comment, to
encourage documenting the reasoning behind why it was deemed safe.

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20251219154418.3592607-6-elver@google.com
This commit is contained in:
Marco Elver 2025-12-19 16:39:54 +01:00 • committed by Peter Zijlstra
parent 8f32441d7a
commit 25d3b21e1d
1 changed files with 7 additions and 0 deletions
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7
scripts/checkpatch.pl
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@ -6733,6 +6733,13 @@ sub process {
}
}
# check for context_unsafe without a comment.
if ($line =~ /\bcontext_unsafe\b/ &&
!ctx_has_comment($first_line, $linenr)) {
WARN("CONTEXT_UNSAFE",
"context_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",