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=-8.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 D730EC433E0 for ; Wed, 17 Jun 2020 21:58:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B2CAC21897 for ; Wed, 17 Jun 2020 21:58:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592431093; bh=1vD+OrQ4Alve7L6hWTCBhaaxl02dnjxL2N2pS8QwJ8o=; h=Date:From:To:Cc:Subject:List-ID:From; b=ZVa/HxUpX2fFkHMcu+rETBl14+acyTT9UWEzLJgsjYNdw3au5bG3LIN9P1Y7rrTgU 3K/ga9o++VvuSj3fRtjfW7VfSbKhPwN6IJp4KCA9KWzCaHDJQgFzdM5TNGoodnxOtj PSJ94euxI0i+T9uQpggFPNefp7Z/etZmFTcQRXvg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726906AbgFQV6M (ORCPT ); Wed, 17 Jun 2020 17:58:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:44912 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726758AbgFQV6L (ORCPT ); Wed, 17 Jun 2020 17:58:11 -0400 Received: from embeddedor (unknown [189.207.59.248]) (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 90F5021852; Wed, 17 Jun 2020 21:58:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592431091; bh=1vD+OrQ4Alve7L6hWTCBhaaxl02dnjxL2N2pS8QwJ8o=; h=Date:From:To:Cc:Subject:From; b=Rya8g3eaFsy3zINxuvjwWV9rqrgchkU9YFOvHE9ExKi6MI882XFhasmZp8VrqffLb t8zaVYf2Ma0+bbRmjPUIOI4r10FqBsADe2mrcbcP9QTrS6j+G2NMOZja+fDf5UynP0 JLBihE/Ij4cRleCfGKtXHB/O+Ejo8yAGXJOVnWHM= Date: Wed, 17 Jun 2020 17:03:31 -0500 From: "Gustavo A. R. Silva" To: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , David Airlie , Daniel Vetter Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, "Gustavo A. R. Silva" Subject: [PATCH][next] drm/i915/query: Use struct_size() helper Message-ID: <20200617220331.GA19550@embeddedor> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Make use of the struct_size() helper instead of an open-coded version in order to avoid any potential type mistakes. This code was detected with the help of Coccinelle and, audited and fixed manually. Signed-off-by: Gustavo A. R. Silva --- drivers/gpu/drm/i915/i915_query.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c index e75c528ebbe0..c1ebda9b5627 100644 --- a/drivers/gpu/drm/i915/i915_query.c +++ b/drivers/gpu/drm/i915/i915_query.c @@ -109,8 +109,7 @@ query_engine_info(struct drm_i915_private *i915, for_each_uabi_engine(engine, i915) num_uabi_engines++; - len = sizeof(struct drm_i915_query_engine_info) + - num_uabi_engines * sizeof(struct drm_i915_engine_info); + len = struct_size(query_ptr, engines, num_uabi_engines); ret = copy_query_item(&query, sizeof(query), len, query_item); if (ret != 0) -- 2.27.0