From patchwork Thu Sep 22 19:30:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gustavo A. R. Silva" X-Patchwork-Id: 12985742 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 7C820ECAAD8 for ; Thu, 22 Sep 2022 19:30:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230127AbiIVTaj (ORCPT ); Thu, 22 Sep 2022 15:30:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47544 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229969AbiIVTah (ORCPT ); Thu, 22 Sep 2022 15:30:37 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 215527F0A0; Thu, 22 Sep 2022 12:30:37 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id C582CB83A37; Thu, 22 Sep 2022 19:30:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DB6FDC433D6; Thu, 22 Sep 2022 19:30:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663875034; bh=vqFQno4mcDNf9adb3pKJgK0yhZw6i/lB0mWMPuO/jgo=; h=Date:From:To:Cc:Subject:From; b=ej6nGhbI6wgK7QB9ktkzYQYIVLi6f0tvrt13oKgLQnfuiFgLVef4FwW4Ox5Vj8T2F 9IkpcCdIXAIIdBt8e25w8zX+PlSeCE0Mcy1WzTIleF47YhRowp7TRtvx7lXwEhWii0 DAJEGyhUjqZxg5MYdephpf69O7VpTdOxRlL/9vz/vNuejBgiAOsc4uKmZmtC6mPL5K rm5gfCf41/N4FFMxXTYY5dqYCiEqTfaoNmvDuFxOui/qlkuCEmQIzobs+MaXLepyFk jB/bild6k65pPkADSFDgaJI96IvLu+bRJ19XpvA6jcZrOAnphiZtpBhcWd5elPhljW 9hq1CeCIrpBnw== Date: Thu, 22 Sep 2022 14:30:28 -0500 From: "Gustavo A. R. Silva" To: Jack Wang , "James E.J. Bottomley" , "Martin K. Petersen" Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, "Gustavo A. R. Silva" , linux-hardening@vger.kernel.org Subject: [PATCH] scsi: pm8001: Replace one-element array with flexible-array member Message-ID: MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org One-element arrays are deprecated, and we are replacing them with flexible array members instead. So, replace one-element array with flexible-array member in struct fw_control_info. This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy() and help us make progress towards globally enabling -fstrict-flex-arrays=3 [1]. Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/207 Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101836 [1] Signed-off-by: Gustavo A. R. Silva Acked-by: Jack Wang Reviewed-by: Kees Cook --- drivers/scsi/pm8001/pm8001_sas.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h index c5e3f380a01c..b08f52673889 100644 --- a/drivers/scsi/pm8001/pm8001_sas.h +++ b/drivers/scsi/pm8001/pm8001_sas.h @@ -612,7 +612,7 @@ struct fw_control_info { operations.*/ u32 reserved;/* padding required for 64 bit alignment */ - u8 buffer[1];/* Start of buffer */ + u8 buffer[];/* Start of buffer */ }; struct fw_control_ex { struct fw_control_info *fw_control;