[PATCH] checkpatch.pl: Improve WARNING on Kconfig help

[Igor Stoppa]

The checkpatch.pl script complains when the help section of a Kconfig
entry is too short, but it doesn't really explain what it is looking
for. Instead, it gives a generic warning that one should consider writing
a paragraph.

But what it *really* checks is that the help section is at least
.$min_conf_desc_length lines long.

Since the definition of what is a paragraph is not really carved in
stone (and actually the primary descriptions is "5 sentences"), make the
warning less ambiguous by expliciting the actual test condition, so that
one doesn't have to read checkpatch.pl sources, to figure out the actual
test.

Signed-off-by: Igor Stoppa <igor.stoppa@xxxxxxxxxx>
CC: Andy Whitcroft <apw@xxxxxxxxxxxxx>
CC: Joe Perches <joe@xxxxxxxxxxx>
CC: linux-kernel@xxxxxxxxxxxxxxx
---
 scripts/checkpatch.pl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index c883ec55654f..e255f0423cca 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2931,7 +2931,8 @@ sub process {
 			}
 			if ($is_start && $is_end && $length < $min_conf_desc_length) {
 				WARN("CONFIG_DESCRIPTION",
-				     "please write a paragraph that describes the config symbol fully\n" . $herecurr);
+				     "please write a paragraph (" .$min_conf_desc_length . " lines)" .
+				     " that describes the config symbol fully\n" . $herecurr);
 			}
 			#print "is_start<$is_start> is_end<$is_end> length<$length>\n";
 		}
-- 
2.19.1