From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BCCB8C43460 for ; Thu, 20 May 2021 16:58:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A0DE66139A for ; Thu, 20 May 2021 16:58:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234880AbhETQ7p (ORCPT ); Thu, 20 May 2021 12:59:45 -0400 Received: from mail.kernel.org ([198.145.29.99]:56304 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234230AbhETQ6z (ORCPT ); Thu, 20 May 2021 12:58:55 -0400 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C3DE4613BE; Thu, 20 May 2021 16:57:32 +0000 (UTC) Received: from 78.163-31-62.static.virginmediabusiness.co.uk ([62.31.163.78] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1ljlgc-002d7b-NV; Thu, 20 May 2021 17:38:15 +0100 From: Marc Zyngier To: linux-kernel@vger.kernel.org Cc: Thomas Gleixner , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Ley Foon Tan , Chris Zankel , Max Filippov , Vineet Gupta , Thomas Bogendoerfer , Robert Jarzmik , Russell King , Krzysztof Kozlowski , Yoshinori Sato , Rich Felker , Geert Uytterhoeven , Alex Deucher , =?UTF-8?q?Christian=20K=C3=B6nig?= , David Airlie , Daniel Vetter , Rob Clark , Linus Walleij , Lee Jones , Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Bartosz Golaszewski , kernel-team@android.com Subject: [PATCH 17/39] irqdomain: Use struct_size() helper when allocating irqdomain Date: Thu, 20 May 2021 17:37:29 +0100 Message-Id: <20210520163751.27325-18-maz@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210520163751.27325-1-maz@kernel.org> References: <20210520163751.27325-1-maz@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: linux-kernel@vger.kernel.org, tglx@linutronix.de, mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org, ley.foon.tan@intel.com, chris@zankel.net, jcmvbkbc@gmail.com, vgupta@synopsys.com, tsbogend@alpha.franken.de, robert.jarzmik@free.fr, linux@armlinux.org.uk, krzysztof.kozlowski@canonical.com, ysato@users.sourceforge.jp, dalias@libc.org, geert@linux-m68k.org, alexander.deucher@amd.com, christian.koenig@amd.com, airlied@linux.ie, daniel@ffwll.ch, robdclark@gmail.com, linus.walleij@linaro.org, lee.jones@linaro.org, lorenzo.pieralisi@arm.com, robh@kernel.org, bhelgaas@google.com, bgolaszewski@baylibre.com, kernel-team@android.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Instead of open-coding the size computation of struct irqdomain, use the struct_size() helper instead. This is going to be handy as we change the type of the revmap array. Signed-off-by: Marc Zyngier --- kernel/irq/irqdomain.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index fa94c86e47d4..cdcb1989cd20 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -150,7 +150,7 @@ struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, int size, (!IS_ENABLED(CONFIG_IRQ_DOMAIN_NOMAP) && direct_max))) return NULL; - domain = kzalloc_node(sizeof(*domain) + (sizeof(unsigned int) * size), + domain = kzalloc_node(struct_size(domain, revmap, size), GFP_KERNEL, of_node_to_nid(to_of_node(fwnode))); if (!domain) return NULL; -- 2.30.2