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-rwxr-xr-xscripts/checkpatch.pl10
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)