From 0199dc9d8c15c7abbffdb9644cbebd2acb6f8a67 Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Fri, 22 Nov 2019 09:40:46 +0100
Subject: sys/linux: add a NEED comment

---
 sys/linux/smack.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sys/linux/smack.txt b/sys/linux/smack.txt
index 78f05c14f..8ae5474e1 100644
--- a/sys/linux/smack.txt
+++ b/sys/linux/smack.txt
@@ -82,7 +82,9 @@ smackfs_cipso_category {
 smackfs_cipso {
 	label	smack_labelnoz
 	sp0	const[' ', int8]
-# int8 because of SMK_DIGITLEN == 4
+# NEED: format specifiers with the given len ("%04d").
+# Kernel expects level to take exactly 4 (SMK_DIGITLEN) chars.
+# This affects lots of other fmt's in this file too.
 	level	fmt[dec, int8[0:SMACK_CIPSO_MAXLEVEL]]
 	sp1	const[' ', int8]
 	num	fmt[dec, len[cats]]
-- 
cgit mrf-deployment