From patchwork Wed Feb 23 02:38:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Gustavo A. R. Silva" X-Patchwork-Id: 12756163 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 1D208C433FE for ; Wed, 23 Feb 2022 02:33:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233399AbiBWCcm (ORCPT ); Tue, 22 Feb 2022 21:32:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237056AbiBWCcd (ORCPT ); Tue, 22 Feb 2022 21:32:33 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E999659A53; Tue, 22 Feb 2022 18:30:30 -0800 (PST) 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 dfw.source.kernel.org (Postfix) with ESMTPS id C1164614FF; Wed, 23 Feb 2022 02:30:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 76D40C340EB; Wed, 23 Feb 2022 02:30:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645583422; bh=h5iW1xnxYLihq1VYREsa+idqlKZAATRY4MQrqNiQGKE=; h=Date:From:To:Cc:Subject:From; b=VptbQJ50VYO1ckFXPf8UodRCgCOzAMPRTDKvgvQIJjjzb+v/B2kF1GqwlAPWtZGYc dvNJDnM3NdMT/GIuYs6FunvztufU4tigXz+lfis3BUsMza8vP9YZgKD10NfEZWJ1Co wTAKq5xm/pSdUELV2jMJy0hjLMc22YsyEHT1pkvPSJ6hc/BI/FnoHZWuyhIOl00C6z ULBARob9XDxoGzMj+sS0YwujjTRwBL/v+thrOq8TH3bXvG2owLvFXM1DS/z5xzX4MX v3sWaAyBFRCMlHEj2jVFVzBccD7rtFiX1TD6MObPsgiA3OUEtzjez+HTIPZGZa71mn w7Ez5L1Scaw4w== Date: Tue, 22 Feb 2022 20:38:16 -0600 From: "Gustavo A. R. Silva" To: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Kalle Valo , "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org, linux-hardening@vger.kernel.org, "Gustavo A. R. Silva" Subject: [PATCH 0/6][next] ath6kl: wmi: Replace one-element arrays with flexible-array members Message-ID: MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org This series aims to replace one-element arrays with flexible-array members in multiple structures in drivers/net/wireless/ath/ath6kl/wmi.h There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. This helps with the ongoing efforts to globally enable -Warray-bounds and get us closer to being able to tighten the FORTIFY_SOURCE routines on memcpy(). These issues were found with the help of Coccinelle and audited and fixed, manually. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/79 Gustavo A. R. Silva (6): ath6kl: wmi: Replace one-element array with flexible-array member in struct wmi_begin_scan_cmd ath6kl: wmi: Replace one-element array with flexible-array member in struct wmi_start_scan_cmd ath6kl: wmi: Replace one-element array with flexible-array member in struct wmi_channel_list_reply ath6kl: wmi: Replace one-element array with flexible-array member in struct wmi_connect_event ath6kl: wmi: Replace one-element array with flexible-array member in struct wmi_disconnect_event ath6kl: wmi: Replace one-element array with flexible-array member in struct wmi_aplist_event drivers/net/wireless/ath/ath6kl/wmi.c | 30 +++++++-------------------- drivers/net/wireless/ath/ath6kl/wmi.h | 12 +++++------ 2 files changed, 14 insertions(+), 28 deletions(-)