From nobody Wed Apr 29 08:08:55 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3A9F7C433EF for ; Sun, 12 Jun 2022 20:27:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234898AbiFLU1O (ORCPT ); Sun, 12 Jun 2022 16:27:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52132 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231891AbiFLU1M (ORCPT ); Sun, 12 Jun 2022 16:27:12 -0400 Received: from mail-wr1-x42e.google.com (mail-wr1-x42e.google.com [IPv6:2a00:1450:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8AC071CFFD; Sun, 12 Jun 2022 13:27:11 -0700 (PDT) Received: by mail-wr1-x42e.google.com with SMTP id a15so4859567wrh.2; Sun, 12 Jun 2022 13:27:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=xvxzy223FFQJfshyxjElH9L36mSmmC81px6ACmnLyK8=; b=CZxkQSy7UoHTCD4dneKKa+nLhgsUf6WHxNQ7ny3hMnYPuqHYG9gj1IHlYrwb6Yy9Xr EnqQ6GwO8w6MoCEK9UMajyiM59RWdg61hC/B+rQXUIV+YwZBogMeCdA5uOtZqPoWv0OG VuvSzy0c9q3/WUcGklPgeZ9FlsNSRDadjfS420dhp9/S4Ti1a1sdVfnSPjmhtJE+3ZBw YPtt5CvNNtd8m6F1qCOM+Oxya9LXhVSD4ZyyRtI+BF1GYtvrofGrGfiEh1UHXzEcY1cS 5btNAbkIlKWE2qUNIP3dHTj0yOEF6HV4WU6qvMlu/Z1wCum/uOMD48OUima4rOX0suXM 2lag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=xvxzy223FFQJfshyxjElH9L36mSmmC81px6ACmnLyK8=; b=kDfs2fv8WqNmuz7eHTETEhAN4fd5NQWbt8pKwVvENPc32bG2ed1eNMsJRnA1YPaipH kR1rzbsKkvBduZOV57JbgFkmUOcR+bEckhIpn93LlMeluTzpB7C9dq3q77uJsJs+6vmT Hl3uRDzRAyRZz/GkL476p7A858wAVU1UVJet1BY4uITe8yuutS4uzR2OeAl2KzmjCj4Z drgvy82FAAvR5a1a9XUfF0eYwxGnh1vber0ql1SkJmq2qzpbhp3vF+dDk7ovtGNQOK4Z DI9nM/vfo4+GqdpV/ocHsTO/022XLIcdUks65l26t7FT6TRRi5jtr54Ty35OvjTm0baC A2ag== X-Gm-Message-State: AOAM531mHqOtkHkVHz28KIuTfYUbiWqYYNQT0RC408xP6NGfW8+1W8iQ OjcT0xr4BC5iaxpcPIpaZcM= X-Google-Smtp-Source: ABdhPJwU3NQ70vtIxzoTKWKSW7xmb948Lxhl6faZc7H2PRpuMapE/NaKLkv0PWTQkMWEelZsNk26Fg== X-Received: by 2002:a05:6000:184b:b0:219:bee5:6b75 with SMTP id c11-20020a056000184b00b00219bee56b75mr16118671wri.80.1655065629975; Sun, 12 Jun 2022 13:27:09 -0700 (PDT) Received: from localhost (cpc154979-craw9-2-0-cust193.16-3.cable.virginm.net. [80.193.200.194]) by smtp.gmail.com with ESMTPSA id a10-20020a056000100a00b0020d106c0386sm6347382wrx.89.2022.06.12.13.27.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 12 Jun 2022 13:27:08 -0700 (PDT) From: Colin Ian King To: Kees Cook , Arnd Bergmann , Greg Kroah-Hartman Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] lkdtm: cfi: use NULL for a null pointer rather than zero Date: Sun, 12 Jun 2022 21:27:08 +0100 Message-Id: <20220612202708.2754270-1-colin.i.king@gmail.com> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There is a pointer being initialized with a zero, use NULL instead. Cleans up sparse warning: drivers/misc/lkdtm/cfi.c:100:27: warning: Using plain integer as NULL point= er Signed-off-by: Colin Ian King Acked-by: Kees Cook --- drivers/misc/lkdtm/cfi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/lkdtm/cfi.c b/drivers/misc/lkdtm/cfi.c index 666a7f4bc137..71483cb1e422 100644 --- a/drivers/misc/lkdtm/cfi.c +++ b/drivers/misc/lkdtm/cfi.c @@ -97,7 +97,7 @@ static volatile int force_check; static void lkdtm_CFI_BACKWARD(void) { /* Use calculated gotos to keep labels addressable. */ - void *labels[] =3D {0, &&normal, &&redirected, &&check_normal, &&check_re= directed}; + void *labels[] =3D { NULL, &&normal, &&redirected, &&check_normal, &&chec= k_redirected }; =20 pr_info("Attempting unchecked stack return address redirection ...\n"); =20 --=20 2.35.3