Messages in this thread Patch in this message | | | From | Prakruthi Deepak Heragu <> | Subject | [PATCH] checkpatch: check for #if 0/#if 1 | Date | Thu, 5 Jul 2018 11:55:22 -0700 |
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The #if 0 and #if 1 are used to toggle features. Wharn if #if 1 or #if 0 is present. If #if 0 is present, warn about that part of code being redundant and that it could be removed. Also, if #if 1 is present, suggest that if the code is required then the #if 1 can be removed. In either case, these preprocessor directives can be removed.
Signed-off-by: Prakruthi Deepak Heragu <pheragu@codeaurora.org> --- scripts/checkpatch.pl | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 978c752..fa3e695 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -5378,11 +5378,19 @@ sub process { "Use of dsb is discouranged: prefer mb.\n" . $herecurr); } + # warn about #if 0 if ($line =~ /^.\s*\#\s*if\s+0\b/) { - CHK("REDUNDANT_CODE", - "if this code is redundant consider removing it\n" . - $herecurr); + WARN("IF_0", + "if this code is redundant consider removing it\n" + . $herecurr); + } + +# warn about #if 1 + if ($line =~ /^.\s*\#\s*if\s+1\b/) { + WARN("IF_1", + "if this code is required consider removing" + . " #if 1\n" . $herecurr); } # check for needless "if (<foo>) fn(<foo>)" uses -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
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