Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933990AbcDFJpq (ORCPT ); Wed, 6 Apr 2016 05:45:46 -0400 Received: from m50-132.163.com ([123.125.50.132]:41399 "EHLO m50-132.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932367AbcDFJpp (ORCPT ); Wed, 6 Apr 2016 05:45:45 -0400 From: zengzhaoxiu@163.com To: dmitry.torokhov@gmail.com Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Zhaoxiu Zeng Subject: [PATCH v2 18/30] input: use parity16 in ams_delta_serio Date: Wed, 6 Apr 2016 17:45:26 +0800 Message-Id: <1459935926-7802-1-git-send-email-zengzhaoxiu@163.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <57031D9D.801@gmail.com> References: <57031D9D.801@gmail.com> X-CM-TRANSID: DNGowADXtPy42gRXQcWKAQ--.17557S2 X-Coremail-Antispam: 1Uf129KBjvdXoWrtr4kGF4kZFWrArWfur1Dtrb_yoW3Krb_Za s5Grn7XFs0kF43twn0yrs8X3sYvwnYqryFgF1rta15GryUWrZ3JFy8uFW5AFn3XrWkuF9r AryUWas5Kw4xWjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUnA-BJUUUUU== X-Originating-IP: [112.95.225.98] X-CM-SenderInfo: p2hqw6xkdr5xrx6rljoofrz/1tbiJR5DgFUL+7KhIgAAss Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 826 Lines: 30 From: Zhaoxiu Zeng Signed-off-by: Zhaoxiu Zeng --- 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); -- 2.5.0