kbuild: add checks for include of linux/types in userspace headers
If we see __[us](8|16|32|64) then we must include <linux/types.h>
If wee see include of <asm/types.h> then we recommend <linux/types.h>
Original script from Mike but modified by me.
Cc: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl
index 72924a7..b62c3196 100644
--- a/scripts/headers_check.pl
+++ b/scripts/headers_check.pl
@@ -34,9 +34,11 @@
$lineno = 0;
while ($line = <FH>) {
$lineno++;
- check_include();
- check_prototypes();
- check_config();
+ &check_include();
+ &check_asm_types();
+ &check_sizetypes();
+ &check_prototypes();
+ &check_config();
}
close FH;
}
@@ -73,3 +75,42 @@
}
}
+my $linux_asm_types;
+sub check_asm_types()
+{
+ if ($lineno == 1) {
+ $linux_asm_types = 0;
+ } elsif ($linux_asm_types >= 1) {
+ return;
+ }
+ if ($line =~ m/^\s*#\s*include\s+<asm\/types.h>/) {
+ $linux_asm_types = 1;
+ printf STDERR "$filename:$lineno: " .
+ "include of <linux/types.h> is preferred over <asm/types.h>\n"
+ # Warn until headers are all fixed
+ #$ret = 1;
+ }
+}
+
+my $linux_types;
+sub check_sizetypes
+{
+ if ($lineno == 1) {
+ $linux_types = 0;
+ } elsif ($linux_types >= 1) {
+ return;
+ }
+ if ($line =~ m/^\s*#\s*include\s+<linux\/types.h>/) {
+ $linux_types = 1;
+ return;
+ }
+ if ($line =~ m/__[us](8|16|32|64)\b/) {
+ printf STDERR "$filename:$lineno: " .
+ "found __[us]{8,16,32,64} type " .
+ "without #include <linux/types.h>\n";
+ $linux_types = 2;
+ # Warn until headers are all fixed
+ #$ret = 1;
+ }
+}
+