# Only include files located in asm* and linux* are checked.
# The rest are assumed to be system include files.
#
-# 2) TODO: check for leaked CONFIG_ symbols
+# 2) It is checked that prototypes does not use "extern"
+#
+# 3) Check for leaked CONFIG_ symbols
use strict;
while ($line = <FH>) {
$lineno++;
check_include();
+ check_prototypes();
+ check_config();
}
close FH;
}
}
}
}
+
+sub check_prototypes
+{
+ if ($line =~ m/^\s*extern\b/) {
+ printf STDERR "$filename:$lineno: extern's make no sense in userspace\n";
+ }
+}
+
+sub check_config
+{
+ if ($line =~ m/[^a-zA-Z0-9_]+CONFIG_([a-zA-Z0-9]+)[^a-zA-Z0-9]/) {
+ printf STDERR "$filename:$lineno: leaks CONFIG_$1 to userspace where it is not valid\n";
+ }
+}
+