From patchwork Thu Apr 8 12:20:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Beulich X-Patchwork-Id: 12190893 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=-14.4 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,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 EF4E3C433ED for ; Thu, 8 Apr 2021 12:21:03 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B40F561106 for ; Thu, 8 Apr 2021 12:21:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B40F561106 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.107260.205048 (Exim 4.92) (envelope-from ) id 1lUTeW-0004qp-7i; Thu, 08 Apr 2021 12:20:52 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 107260.205048; Thu, 08 Apr 2021 12:20:52 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lUTeW-0004qh-48; Thu, 08 Apr 2021 12:20:52 +0000 Received: by outflank-mailman (input) for mailman id 107260; Thu, 08 Apr 2021 12:20:51 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lUTeU-0004qS-U4 for xen-devel@lists.xenproject.org; Thu, 08 Apr 2021 12:20:50 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id feb7a45f-91cb-4bde-abe5-e9a11b935368; Thu, 08 Apr 2021 12:20:49 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 0FB44B090; Thu, 8 Apr 2021 12:20:49 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: feb7a45f-91cb-4bde-abe5-e9a11b935368 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1617884449; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rlkZ2gHfa7wMnDFvJ4VBlthgmsqLlVSVbOIY+whHTZo=; b=BhdG0F4k+a1SrcQc+iLOYzWIB53zUhsgnWZVWNX85ywHaGPxfHby4HFyTmGSZpBKQ1XyqN emDXLzzH6vmysdgphmEjjAw5j9I0pNzB9bvXbCiZxjsvjFHXxbu2SPdJNZ0Mz/XkqmzTVP UEJA/T9/sDpwxrb0Ob/A1aB0oR9t4n4= Subject: [PATCH 07/11] EFI/runtime: avoid effectively open-coding xmalloc_array() From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , George Dunlap , Ian Jackson , Julien Grall , Stefano Stabellini , Wei Liu , =?utf-8?q?Roger_Pau_Monn=C3=A9?= References: Message-ID: <154a423e-ede1-b799-c616-a0022b815606@suse.com> Date: Thu, 8 Apr 2021 14:20:48 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.9.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US There is a difference in generated code: xmalloc_bytes() forces SMP_CACHE_BYTES alignment. I think we not only don't need this here, but actually don't want it. Signed-off-by: Jan Beulich --- a/xen/common/efi/runtime.c +++ b/xen/common/efi/runtime.c @@ -486,7 +486,7 @@ int efi_runtime_call(struct xenpf_efi_ru size = op->u.get_variable.size; if ( size ) { - data = xmalloc_bytes(size); + data = xmalloc_array(unsigned char, size); if ( !data ) { xfree(name); @@ -536,7 +536,7 @@ int efi_runtime_call(struct xenpf_efi_ru return -EIO; } - data = xmalloc_bytes(op->u.set_variable.size); + data = xmalloc_array(unsigned char, op->u.set_variable.size); if ( !data ) rc = -ENOMEM; else if ( copy_from_guest(data, op->u.set_variable.data, @@ -571,7 +571,7 @@ int efi_runtime_call(struct xenpf_efi_ru return -EINVAL; size = op->u.get_next_variable_name.size; - name.raw = xzalloc_bytes(size); + name.raw = xzalloc_array(unsigned char, size); if ( !name.raw ) return -ENOMEM; if ( copy_from_guest(name.raw, op->u.get_next_variable_name.name,