The u8, u16, u32, and u64, and the s8, s16, s32, and s64 types shouldn't
be exported to userspace. Add a simple check for these.

Signed-off-by: Paul Bolle <pebo...@tiscali.nl>
---
 scripts/headers_check.pl | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl
index 64ac238..317aa3a 100644
--- a/scripts/headers_check.pl
+++ b/scripts/headers_check.pl
@@ -39,6 +39,7 @@ foreach my $file (@files) {
                &check_include();
                &check_asm_types();
                &check_sizetypes();
+               &check_kerneltypes();
                &check_declarations();
                # Dropped for now. Too much noise &check_config();
        }
@@ -159,3 +160,12 @@ sub check_sizetypes
                #$ret = 1;
        }
 }
+
+sub check_kerneltypes
+{
+       if ($line =~ m/^[[:space:]]*([us](8|16|32|64))\b/) {
+               printf STDERR "$filename:$lineno: " .
+                             "found $1 type exported to userspace; " .
+                             "use __$1 instead\n";
+       }
+}
-- 
1.7.11.7

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