From patchwork Wed Apr 5 13:48:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rafael J. Wysocki" X-Patchwork-Id: 670412 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 0A135C76188 for ; Wed, 5 Apr 2023 14:01:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238170AbjDEOBw (ORCPT ); Wed, 5 Apr 2023 10:01:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238200AbjDEOBN (ORCPT ); Wed, 5 Apr 2023 10:01:13 -0400 Received: from cloudserver094114.home.pl (cloudserver094114.home.pl [79.96.170.134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C7065FED; Wed, 5 Apr 2023 07:00:56 -0700 (PDT) Received: from localhost (127.0.0.1) (HELO v370.home.net.pl) by /usr/run/smtp (/usr/run/postfix/private/idea_relay_lmtp) via UNIX with SMTP (IdeaSmtpServer 5.1.0) id 80b6ae4ee35ab9c8; Wed, 5 Apr 2023 16:00:54 +0200 Received: from kreacher.localnet (unknown [213.134.163.219]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by v370.home.net.pl (Postfix) with ESMTPSA id EEAAE1B4EA62; Wed, 5 Apr 2023 16:00:53 +0200 (CEST) From: "Rafael J. Wysocki" To: Linux ACPI Cc: LKML , Bob Moore , Kees Cook Subject: [PATCH 21/32] ACPICA: actbl1: Replace 1-element arrays with flexible arrays Date: Wed, 05 Apr 2023 15:48:56 +0200 Message-ID: <2196047.NgBsaNRSFp@kreacher> In-Reply-To: <4845957.31r3eYUQgx@kreacher> References: <4845957.31r3eYUQgx@kreacher> MIME-Version: 1.0 X-CLIENT-IP: 213.134.163.219 X-CLIENT-HOSTNAME: 213.134.163.219 X-VADE-SPAMSTATE: clean X-VADE-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvhedrvdejuddgjeduucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecujffqoffgrffnpdggtffipffknecuuegrihhlohhuthemucduhedtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvfevufffkfgjfhgggfgtsehtufertddttdejnecuhfhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqnecuggftrfgrthhtvghrnhepledtieekkeekveeikeetgffgteeuteefjeevjeegudelvdduheeiuedvieehieevnecuffhomhgrihhnpehgihhthhhusgdrtghomhenucfkphepvddufedrudefgedrudeifedrvdduleenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpedvudefrddufeegrdduieefrddvudelpdhhvghlohepkhhrvggrtghhvghrrdhlohgtrghlnhgvthdpmhgrihhlfhhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqpdhnsggprhgtphhtthhopeegpdhrtghpthhtoheplhhinhhugidqrggtphhisehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhinhhugidqkhgvrhhnvghlsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheprhhosggvrhhtrdhmohhorhgvsehinhhtvghlrdgtohhmpdhrtghpthhtohepkhgvvghssehouhht fhhluhigrdhnvght X-DCC--Metrics: v370.home.net.pl 1024; Body=4 Fuz1=4 Fuz2=4 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org From: Kees Cook ACPICA commit 8c9bd5d151f77767b2fd937911848b7159dc8ee9 Similar to "Replace one-element array with flexible-array", replace the 1-element array with a proper flexible array member as defined by C99. This allows the code to operate without tripping compile-time and run- time bounds checkers (e.g. via __builtin_object_size(), -fsanitize=bounds, and/or -fstrict-flex-arrays=3). No .text nor .data differences result from this change. Link: https://github.com/acpica/acpica/commit/8c9bd5d1 Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki --- include/acpi/actbl1.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h index 7a3ad28b86c6..6ee7437537db 100644 --- a/include/acpi/actbl1.h +++ b/include/acpi/actbl1.h @@ -944,7 +944,7 @@ struct acpi_table_drtm { struct acpi_drtm_vtable_list { u32 validated_table_count; - u64 validated_tables[1]; + u64 validated_tables[]; }; /* 2) Resources List (of Resource Descriptors) */ @@ -959,7 +959,7 @@ struct acpi_drtm_resource { struct acpi_drtm_resource_list { u32 resource_count; - struct acpi_drtm_resource resources[1]; + struct acpi_drtm_resource resources[]; }; /* 3) Platform-specific Identifiers List */ @@ -982,7 +982,7 @@ struct acpi_table_ecdt { struct acpi_generic_address data; /* Address of EC data register */ u32 uid; /* Unique ID - must be same as the EC _UID method */ u8 gpe; /* The GPE for the EC */ - u8 id[1]; /* Full namepath of the EC in the ACPI namespace */ + u8 id[]; /* Full namepath of the EC in the ACPI namespace */ }; /*******************************************************************************