1 files changed, 10 insertions, 0 deletions

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 7c79c91662c8..e2cb1f4621b7 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3878,6 +3878,16 @@ sub process {
                         }
                 }
 
+# check for new externs in .h files.
+                if ($realfile =~ /\.h$/ &&
+                    $line =~ /^\+\s*(extern\s+)$Type\s*$Ident\s*\(/s) {
+                        if (WARN("AVOID_EXTERNS",
+                                 "extern prototypes should be avoided in .h files\n" . $herecurr) &&
+                            $fix) {
+                                $fixed[$linenr - 1] =~ s/(.*)\bextern\b\s*(.*)/$1$2/;
+                        }
+                }
+
 # check for new externs in .c files.
                 if ($realfile =~ /\.c$/ && defined $stat &&
                     $stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)