linux-kernel - [SMACK] Build-time warning from Linux 5.6.2: unused variable ‘sip’

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Date:   Mon, 06 Apr 2020 12:02:27 +0000
From:   Jordan Glover <Golden_Miller83@...tonmail.ch>
To:     LSM List <linux-security-module@...r.kernel.org>
Cc:     "SMACK-discuss@...ts.01.org" <SMACK-discuss@...ts.01.org>,
        Casey Schaufler <casey@...aufler-ca.com>,
        Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
        "Schaufler, Casey" <casey.schaufler@...el.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [SMACK] Build-time warning from Linux 5.6.2: unused variable ‘sip’

Hello, during build of Linux 5.6.2 (also happened on 5.5.x series)
gcc (9.3) prints following warning:

security/smack/smack_lsm.c: In function ‘smack_socket_connect’:
security/smack/smack_lsm.c:2838:24: warning: unused variable ‘sip’ [-Wunused-variable]
 2838 |   struct sockaddr_in6 *sip = (struct sockaddr_in6 *)sap;

My kernel has set CONFIG_IPV6=n during build.

Jordan