From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751709AbaLOQT3 (ORCPT ); Mon, 15 Dec 2014 11:19:29 -0500 Received: from mx02.posteo.de ([89.146.194.165]:32856 "EHLO mx02.posteo.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752102AbaLOQTM (ORCPT ); Mon, 15 Dec 2014 11:19:12 -0500 From: Martin Kepplinger To: peterz@infradead.org Cc: mingo@kernel.org, tytso@mit.edu, linux-kernel@vger.kernel.org, Martin Kepplinger Subject: [PATCH 3/6] hwmon: jc42: use bitops' sign_extend16 Date: Mon, 15 Dec 2014 17:18:34 +0100 Message-Id: <1418660317-21750-4-git-send-email-martink@posteo.de> X-Mailer: git-send-email 2.1.3 In-Reply-To: <1418660317-21750-1-git-send-email-martink@posteo.de> References: <1418660317-21750-1-git-send-email-martink@posteo.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --- drivers/hwmon/jc42.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c index 388f8bc..335a2de 100644 --- a/drivers/hwmon/jc42.c +++ b/drivers/hwmon/jc42.c @@ -31,6 +31,7 @@ #include #include #include +#include /* Addresses to scan */ static const unsigned short normal_i2c[] = { @@ -215,9 +216,7 @@ static int jc42_temp_from_reg(s16 reg) { reg &= 0x1fff; - /* sign extend register */ - if (reg & 0x1000) - reg |= 0xf000; + reg = sign_extend16(reg, 12); /* convert from 0.0625 to 0.001 resolution */ return reg * 125 / 2; -- 2.1.3