checkpatch: warn on unnecessary line continuations
When the previous line is not a line continuation and the current line has
a line continuation but is not a #define, emit a warning.
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index f18750e..d4f61a6 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3013,6 +3013,15 @@
"Macros with complex values should be enclosed in parenthesis\n" . "$herectx");
}
}
+
+# check for line continuations outside of #defines
+
+ } else {
+ if ($prevline !~ /^..*\\$/ &&
+ $line =~ /^\+.*\\$/) {
+ WARN("LINE_CONTINUATIONS",
+ "Avoid unnecessary line continuations\n" . $herecurr);
+ }
}
# do {} while (0) macro tests:
