From patchwork Wed Jan 11 21:11:25 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Ricardo Ziviani X-Patchwork-Id: 9511499 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 822D06075C for ; Wed, 11 Jan 2017 21:40:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7486E2869E for ; Wed, 11 Jan 2017 21:40:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 67869286A2; Wed, 11 Jan 2017 21:40:40 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 07DC72869E for ; Wed, 11 Jan 2017 21:40:39 +0000 (UTC) Received: from localhost ([::1]:57396 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cRQdK-0003a4-JL for patchwork-qemu-devel@patchwork.kernel.org; Wed, 11 Jan 2017 16:40:38 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38378) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cRQBP-0001KH-JS for qemu-devel@nongnu.org; Wed, 11 Jan 2017 16:11:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cRQBK-00061h-KA for qemu-devel@nongnu.org; Wed, 11 Jan 2017 16:11:47 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:49224) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cRQBK-00061N-AZ for qemu-devel@nongnu.org; Wed, 11 Jan 2017 16:11:42 -0500 Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id v0BL9T6O048335 for ; Wed, 11 Jan 2017 16:11:41 -0500 Received: from e24smtp01.br.ibm.com (e24smtp01.br.ibm.com [32.104.18.85]) by mx0a-001b2d01.pphosted.com with ESMTP id 27wq12ya93-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 11 Jan 2017 16:11:40 -0500 Received: from localhost by e24smtp01.br.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Wed, 11 Jan 2017 19:11:36 -0200 Received: from d24relay03.br.ibm.com (d24relay03.br.ibm.com [9.18.232.225]) by d24dlp02.br.ibm.com (Postfix) with ESMTP id BFEE91DC006E; Wed, 11 Jan 2017 16:11:37 -0500 (EST) Received: from d24av02.br.ibm.com (d24av02.br.ibm.com [9.8.31.93]) by d24relay03.br.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v0BLBZuj26214524; Wed, 11 Jan 2017 19:11:35 -0200 Received: from d24av02.br.ibm.com (localhost [127.0.0.1]) by d24av02.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v0BLBZRu029242; Wed, 11 Jan 2017 19:11:35 -0200 Received: from pacoca.ibm.com ([9.80.208.74]) by d24av02.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id v0BLBVth029206; Wed, 11 Jan 2017 19:11:32 -0200 From: Jose Ricardo Ziviani To: qemu-ppc@nongnu.org Date: Wed, 11 Jan 2017 19:11:25 -0200 X-Mailer: git-send-email 2.7.4 X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 17011121-1523-0000-0000-00000268A415 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17011121-1524-0000-0000-000029F5E07F Message-Id: <1484169085-2962-1-git-send-email-joserz@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-01-11_17:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1612050000 definitions=main-1701110281 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCHi v2] ppc: Fix a warning in bcdcfz code and improve BCD_DIG_BYTE macro X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: thuth@redhat.com, nikunj@linux.vnet.ibm.com, qemu-devel@nongnu.org, 655708@bugs.launchpad.net, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP This commit fixes a warning in the code "(i * 2) ? .. : ..", which should be better as "i ? .. : ..", and improves the BCD_DIG_BYTE macro by placing parentheses around its argument to avoid possible expansion issues like: BCD_DIG_BYTE(i + j). Signed-off-by: Jose Ricardo Ziviani Reviewed-by: Eric Blake --- target/ppc/int_helper.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c index 24e5964..bd8282c 100644 --- a/target/ppc/int_helper.c +++ b/target/ppc/int_helper.c @@ -2583,9 +2583,9 @@ void helper_vsubecuq(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) #define NATIONAL_NEG 0x2D #if defined(HOST_WORDS_BIGENDIAN) -#define BCD_DIG_BYTE(n) (15 - (n/2)) +#define BCD_DIG_BYTE(n) (15 - ((n) / 2)) #else -#define BCD_DIG_BYTE(n) (n/2) +#define BCD_DIG_BYTE(n) ((n) / 2) #endif static int bcd_get_sgn(ppc_avr_t *bcd) @@ -2908,7 +2908,7 @@ uint32_t helper_bcdcfz(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps) } for (i = 0; i < 16; i++) { - zone_digit = (i * 2) ? b->u8[BCD_DIG_BYTE(i * 2)] >> 4 : zone_lead; + zone_digit = i ? b->u8[BCD_DIG_BYTE(i * 2)] >> 4 : zone_lead; digit = b->u8[BCD_DIG_BYTE(i * 2)] & 0xF; if (unlikely(zone_digit != zone_lead || digit > 0x9)) { invalid = 1;