linux-kernel - [PATCH 8/9] selinux: simplify cred_init

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Date:   Tue, 25 Jan 2022 15:14:18 +0100
From:   Christian Göttsche <cgzones@...glemail.com>
To:     selinux@...r.kernel.org
Cc:     Paul Moore <paul@...l-moore.com>,
        Stephen Smalley <stephen.smalley.work@...il.com>,
        Eric Paris <eparis@...isplace.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Jeff Vander Stoep <jeffv@...gle.com>,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: [PATCH 8/9] selinux: simplify cred_init_security

The parameter of selinux_cred() is declared const, so an explicit cast
dropping the const qualifier is not necessary. Without the cast the
local variable cred serves no purpose.

Reported by clang [-Wcast-qual]

Signed-off-by: Christian Göttsche <cgzones@...glemail.com>
---
 security/selinux/hooks.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 5b6895e4fc29..a840c8c1ec35 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -211,10 +211,9 @@ static int selinux_lsm_notifier_avc_callback(u32 event)
  */
 static void cred_init_security(void)
 {
-	struct cred *cred = (struct cred *) current->real_cred;
 	struct task_security_struct *tsec;
 
-	tsec = selinux_cred(cred);
+	tsec = selinux_cred(current->real_cred);
 	tsec->osid = tsec->sid = SECINITSID_KERNEL;
 }
 
-- 
2.34.1