From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934276AbdCLPdn (ORCPT ); Sun, 12 Mar 2017 11:33:43 -0400 Received: from mail-pg0-f68.google.com ([74.125.83.68]:36852 "EHLO mail-pg0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933837AbdCLPdg (ORCPT ); Sun, 12 Mar 2017 11:33:36 -0400 Date: Sun, 12 Mar 2017 21:03:30 +0530 From: simran singhal To: abbotti@mev.co.uk Cc: hsweeten@visionengravers.com, gregkh@linuxfoundation.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, outreachy-kernel@googlegroups.com Subject: [PATCH v2] staging: comedi: amplc_pci224: Convert macro GAT_CONFIG to static inline function Message-ID: <20170312153329.GA20729@singhal-Inspiron-5558> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Convert macro GAT_CONFIG to static inline function as static inline functions are preferred over macros. This change is possible since the arguments at all call sites have the same type. This was done using Coccinelle: @r@ expression e; @@ - #define GAT_CONFIG(chan, src) e + static inline unsigned int pci224_gat_config(unsigned int chan, + unsigned int src) +{ + return ((chan & 3) << 3) | (src & 7); +} @r1@ expression dev,reg,chan,src; @@ -GAT_CONFIG(chan, src) +pci224_gat_config(chan, src) Also, the comment describing the macro has been removed manually. Signed-off-by: simran singhal --- v2: -Change the name of static inline function -put some code from 2 line to 1 line drivers/staging/comedi/drivers/amplc_pci224.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c index 2e6decf..07555cf 100644 --- a/drivers/staging/comedi/drivers/amplc_pci224.c +++ b/drivers/staging/comedi/drivers/amplc_pci224.c @@ -216,8 +216,12 @@ #define GAT_GND 1 /* GND (i.e. disabled) */ #define GAT_EXT 2 /* reserved (external gate input) */ #define GAT_NOUTNM2 3 /* inverted output of channel-2 modulo total */ -/* Macro to construct gate input configuration register value. */ -#define GAT_CONFIG(chan, src) ((((chan) & 3) << 3) | ((src) & 7)) + +static inline unsigned int pci224_gat_config(unsigned int chan, + unsigned int src) +{ + return ((chan & 3) << 3) | (src & 7); +} /* * Summary of CLK_OUTNM1 and GAT_NOUTNM2 connections for PCI224 and PCI234: @@ -817,10 +821,10 @@ static void pci224_ao_start_pacer(struct comedi_device *dev, * source. */ /* Make sure Z2-0 is gated on. */ - outb(GAT_CONFIG(0, GAT_VCC), devpriv->iobase1 + PCI224_ZGAT_SCE); + outb(pci224_gat_config(0, GAT_VCC), devpriv->iobase1 + PCI224_ZGAT_SCE); /* Cascading with Z2-2. */ /* Make sure Z2-2 is gated on. */ - outb(GAT_CONFIG(2, GAT_VCC), devpriv->iobase1 + PCI224_ZGAT_SCE); + outb(pci224_gat_config(2, GAT_VCC), devpriv->iobase1 + PCI224_ZGAT_SCE); /* Z2-2 needs 10 MHz clock. */ outb(CLK_CONFIG(2, CLK_10MHZ), devpriv->iobase1 + PCI224_ZCLK_SCE); /* Z2-0 is clocked from Z2-2's output. */ -- 2.7.4