From patchwork Thu Apr 1 10:22:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Beulich X-Patchwork-Id: 12177703 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=-17.2 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,URIBL_BLOCKED, 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 41E10C433ED for ; Thu, 1 Apr 2021 10:22:37 +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 C40396108B for ; Thu, 1 Apr 2021 10:22:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C40396108B 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.104301.199341 (Exim 4.92) (envelope-from ) id 1lRuT5-00022C-Qt; Thu, 01 Apr 2021 10:22:27 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 104301.199341; Thu, 01 Apr 2021 10:22:27 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lRuT5-000225-ND; Thu, 01 Apr 2021 10:22:27 +0000 Received: by outflank-mailman (input) for mailman id 104301; Thu, 01 Apr 2021 10:22:26 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lRuT3-00021n-UA for xen-devel@lists.xenproject.org; Thu, 01 Apr 2021 10:22:25 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 4fb8832f-be95-4d20-ae58-4b50e73d5c12; Thu, 01 Apr 2021 10:22:25 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 7CFFAAEA6; Thu, 1 Apr 2021 10:22:24 +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: 4fb8832f-be95-4d20-ae58-4b50e73d5c12 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=1617272544; 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=e1kdSAKEAN16LJljjXzIk1aT1zZrsyx9ENiy36Xyzo4=; b=nRlQ+tI8dRA9xfib5Ur7UyMrq1n3GB4VeMrC6gyOVKmf3Zt4PdU4K/t8wvc1PHLd/VBtoS F6J1I3Ut7Ddqt8uy5ZlE1jQxTJ8fm5S4cum06Pnu8hG2N6ISsYnOEbti+Bebgk0uBLbC3e Uc68mOTctRb8XUG6lKVk5Xz1W7OecHI= Subject: [PATCH 07/23] lib: move memcmp() From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , George Dunlap , Ian Jackson , Julien Grall , Stefano Stabellini , Wei Liu References: Message-ID: Date: Thu, 1 Apr 2021 12:22:23 +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 Signed-off-by: Jan Beulich --- a/xen/common/string.c +++ b/xen/common/string.c @@ -311,25 +311,6 @@ char *(strstr)(const char *s1, const cha } #endif -#ifndef __HAVE_ARCH_MEMCMP -/** - * memcmp - Compare two areas of memory - * @cs: One area of memory - * @ct: Another area of memory - * @count: The size of the area. - */ -int (memcmp)(const void *cs, const void *ct, size_t count) -{ - const unsigned char *su1, *su2; - int res = 0; - - for( su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--) - if ((res = *su1 - *su2) != 0) - break; - return res; -} -#endif - #ifndef __HAVE_ARCH_MEMCHR /** * memchr - Find a character in an area of memory. --- a/xen/lib/Makefile +++ b/xen/lib/Makefile @@ -4,6 +4,7 @@ lib-y += bsearch.o lib-y += ctors.o lib-y += ctype.o lib-y += list-sort.o +lib-y += memcmp.o lib-y += memcpy.o lib-y += memmove.o lib-y += memset.o --- /dev/null +++ b/xen/lib/memcmp.c @@ -0,0 +1,32 @@ +/* + * Copyright (C) 1991, 1992 Linus Torvalds + */ + +#include + +/** + * memcmp - Compare two areas of memory + * @cs: One area of memory + * @ct: Another area of memory + * @count: The size of the area. + */ +int (memcmp)(const void *cs, const void *ct, size_t count) +{ + const unsigned char *su1, *su2; + int res = 0; + + for( su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--) + if ((res = *su1 - *su2) != 0) + break; + return res; +} + +/* + * Local variables: + * mode: C + * c-file-style: "BSD" + * c-basic-offset: 8 + * tab-width: 8 + * indent-tabs-mode: t + * End: + */