linux-kernel - [PATCH] sched: use unsigned int for one-bit bitfield in sched_dl

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <9ca35406601257b736823d9a2109888c86f2c0e3.1510901411.git.lucien.xin@gmail.com>
Date:   Fri, 17 Nov 2017 14:50:11 +0800
From:   Xin Long <lucien.xin@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        luca abeni <luca.abeni@...tannapisa.it>
Subject: [PATCH] sched: use unsigned int for one-bit bitfield in sched_dl_entity

This patch is to fix the 'dubious one-bit signed bitfield' error reported
by sparse, when using 'make C=2'.

Fixes: 799ba82de01e ("sched/deadline: Use C bitfields for the state flags")
Signed-off-by: Xin Long <lucien.xin@...il.com>
---
 include/linux/sched.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index a5dc7c9..3e35a37 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -473,10 +473,10 @@ struct sched_dl_entity {
 	 * conditions between the inactive timer handler and the wakeup
 	 * code.
 	 */
-	int				dl_throttled      : 1;
-	int				dl_boosted        : 1;
-	int				dl_yielded        : 1;
-	int				dl_non_contending : 1;
+	unsigned int			dl_throttled      : 1,
+					dl_boosted        : 1,
+					dl_yielded        : 1,
+					dl_non_contending : 1;
 
 	/*
 	 * Bandwidth enforcement timer. Each -deadline task has its
-- 
2.1.0