The #if 0 or #if 1 is used to toggle features. Warn if #if 0 or #if 1
is present and suggest that they can be removed.
Based on 60f890105547f7a4 ("checkpatch: check for #if 0/#if 1")
Linux kernel commit.
Signed-off-by: Antony Pavlov <antonynpavlov@xxxxxxxxx>
---
scripts/checkpatch.pl | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d1fe6659ce..4e17347a84 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2863,9 +2863,14 @@ sub process {
# warn about #if 0
if ($line =~ /^.\s*\#\s*if\s+0\b/) {
- CHK("REDUNDANT_CODE",
- "if this code is redundant consider removing it\n" .
- $herecurr);
+ WARN("IF_0",
+ "Consider removing the code enclosed by this #if 0 and its #endif\n" . $herecurr);
+ }
+
+# warn about #if 1
+ if ($line =~ /^.\s*\#\s*if\s+1\b/) {
+ WARN("IF_1",
+ "Consider removing the #if 1 and its #endif\n" . $herecurr);
}
# check for needless kfree() checks
--
2.20.0.rc2
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