Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753637AbcC0HS4 (ORCPT ); Sun, 27 Mar 2016 03:18:56 -0400 Received: from mail-pf0-f196.google.com ([209.85.192.196]:36441 "EHLO mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752280AbcC0HSq (ORCPT ); Sun, 27 Mar 2016 03:18:46 -0400 Subject: [PATCH 19/31] input: serio: use parity16 in ams_delta_serio.c References: <1458788612-4367-1-git-send-email-zhaoxiu.zeng@gmail.com> Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org To: Dmitry Torokhov From: "zhaoxiu.zeng" Message-ID: <56F7893A.2040902@gmail.com> Date: Sun, 27 Mar 2016 15:18:18 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.7.1 MIME-Version: 1.0 In-Reply-To: <1458788612-4367-1-git-send-email-zhaoxiu.zeng@gmail.com> Content-Type: text/plain; charset=gbk Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 825 Lines: 29 From: Zeng Zhaoxiu Signed-off-by: Zeng Zhaoxiu --- drivers/input/serio/ams_delta_serio.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/input/serio/ams_delta_serio.c b/drivers/input/serio/ams_delta_serio.c index 45887e3..85459b3 100644 --- a/drivers/input/serio/ams_delta_serio.c +++ b/drivers/input/serio/ams_delta_serio.c @@ -48,13 +48,9 @@ static int check_data(int data) data); return SERIO_FRAME; } - /* calculate the parity */ - for (i = 1; i < 10; i++) { - if (data & (1 << i)) - parity++; - } /* it should be odd */ - if (!(parity & 0x01)) { + parity = parity16(data & 0x3fe); + if (!parity) { dev_warn(&ams_delta_serio->dev, "paritiy check failed, data=0x%X parity=0x%X\n", data, parity); -- 2.5.5