linux-kernel - [PATCH] sched: Remove unused variable in mm_cid

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <20251017073050.2411988-1-kevin.brodsky@arm.com>
Date: Fri, 17 Oct 2025 08:30:50 +0100
From: Kevin Brodsky <kevin.brodsky@....com>
To: linux-kernel@...r.kernel.org
Cc: Kevin Brodsky <kevin.brodsky@....com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Juri Lelli <juri.lelli@...hat.com>
Subject: [PATCH] sched: Remove unused variable in mm_cid_get()

The cpumask variable in mm_cid_get() has never been used, remove it.

This fixes a -Wunused-but-set-variable warning when building with
W=1.

Signed-off-by: Kevin Brodsky <kevin.brodsky@....com>
---
Cc: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Juri Lelli <juri.lelli@...hat.com>
---
 kernel/sched/sched.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 1f5d07067f60..361f9101cef9 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -3740,11 +3740,9 @@ static inline int mm_cid_get(struct rq *rq, struct task_struct *t,
 			     struct mm_struct *mm)
 {
 	struct mm_cid __percpu *pcpu_cid = mm->pcpu_cid;
-	struct cpumask *cpumask;
 	int cid;
 
 	lockdep_assert_rq_held(rq);
-	cpumask = mm_cidmask(mm);
 	cid = __this_cpu_read(pcpu_cid->cid);
 	if (mm_cid_is_valid(cid)) {
 		mm_cid_snapshot_time(rq, mm);

base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787
-- 
2.47.0