[U-Boot] [PATCH V2] checkpatch: add check for whitespace before semicolon at end-of-line

[Eric Nelson]

Requires --strict option during invocation:
        ~/linux$ scripts/checkpatch --strict foo.patch

This tests for a bad habits of mine like this:

        return 0 ;

Note that it does allow a special case of a bare semicolon
for empty loops:

        while (foo())
                ;

---
V2 adds the special case and requirement for --strict based on
recommendations of Joe Perches.

 scripts/checkpatch.pl |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index a3b9782..e711122 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3227,6 +3227,12 @@ sub process {
                         "Statements terminations use 1 semicolon\n" . 
$herecurr);
                }
 
+# check for whitespace before semicolon - not allowed at end-of-line
+               if ($line =~ /\S+\s+;$/) {
+                   CHK("SPACING",
+                        "Whitespace before semicolon\n" . $herecurr);
+               }
+
 # check for gcc specific __FUNCTION__
                if ($line =~ /__FUNCTION__/) {
                        WARN("USE_FUNC",
-- 
1.7.9

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