I think patch subject lines with "checkpatch" in
them are almost never really useful.

Maybe a new checkpatch test to see if a subject line
is perhaps less than informational should be added.

Something like:
---
 scripts/checkpatch.pl | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 31a731e..a690515 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2048,6 +2048,13 @@ sub process {
                        $in_commit_log = 0;
                }
 
+# Check patch subject lines for "checkpatch" (but not checkpatch:)
+               if ($in_header_lines &&
+                   $line =~ /^\s*subject:.*\bcheckpatch(?!(?:\.pl)?:)\b/i) {
+                       WARN("BAD_PATCH_SUBJECT",
+                            "Patch subjects with 'checkpatch' are not 
generally useful.  Describe the change, not the tool that suggests the 
change.\n" . $herecurr);
+               }
+
 # Check signature styles
                if (!$in_header_lines &&
                    $line =~ 
/^(\s*)([a-z0-9_-]+by:|$signature_tags)(\s*)(.*)/i) {


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