From patchwork Wed Jan 11 18:50:58 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: 713901 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3tzJ6Z73ZZz9t0q for ; Thu, 12 Jan 2017 05:57:26 +1100 (AEDT) Received: from localhost ([::1]:56329 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cRO5M-0003Pu-JO for incoming@patchwork.ozlabs.org; Wed, 11 Jan 2017 13:57:24 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34193) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cRNzc-0006P6-DC for qemu-devel@nongnu.org; Wed, 11 Jan 2017 13:51:30 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cRNzZ-0008Uh-BJ for qemu-devel@nongnu.org; Wed, 11 Jan 2017 13:51:28 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:44837) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cRNzZ-0008UF-2A for qemu-devel@nongnu.org; Wed, 11 Jan 2017 13:51:25 -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 v0BIn0hM130734 for ; Wed, 11 Jan 2017 13:51:23 -0500 Received: from e24smtp02.br.ibm.com (e24smtp02.br.ibm.com [32.104.18.86]) by mx0a-001b2d01.pphosted.com with ESMTP id 27wq12tade-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 11 Jan 2017 13:51:23 -0500 Received: from localhost by e24smtp02.br.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Wed, 11 Jan 2017 16:51:18 -0200 Received: from d24relay03.br.ibm.com (d24relay03.br.ibm.com [9.18.232.225]) by d24dlp01.br.ibm.com (Postfix) with ESMTP id E39923520072; Wed, 11 Jan 2017 13:50:46 -0500 (EST) Received: from d24av05.br.ibm.com (d24av05.br.ibm.com [9.18.232.44]) by d24relay03.br.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v0BIpHmq36831432; Wed, 11 Jan 2017 16:51:17 -0200 Received: from d24av05.br.ibm.com (localhost [127.0.0.1]) by d24av05.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v0BEpGtB014179; Wed, 11 Jan 2017 12:51:17 -0200 Received: from pacoca.ibm.com ([9.80.208.74]) by d24av05.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id v0BEpCQm014078; Wed, 11 Jan 2017 12:51:13 -0200 From: Jose Ricardo Ziviani To: qemu-ppc@nongnu.org Date: Wed, 11 Jan 2017 16:50:58 -0200 X-Mailer: git-send-email 2.7.4 X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 17011118-0020-0000-0000-0000027A4C94 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17011118-0021-0000-0000-0000309497DD Message-Id: <1484160658-15419-1-git-send-email-joserz@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-01-11_16:, , 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-1701110253 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH] 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" 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..d889084 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;