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Message-ID: <20141106161444.GA8954@hariprasad-pc>
Date:	Thu, 6 Nov 2014 21:45:10 +0530
From:	Hariprasad S <hariprasad@...lsio.com>
To:	David Miller <davem@...emloft.net>
CC:	<netdev@...r.kernel.org>, <linux-rdma@...r.kernel.org>,
	<linux-scsi@...r.kernel.org>, <roland@...estorage.com>,
	<JBottomley@...allels.com>, <hch@...radead.org>,
	<swise@...ngridcomputing.com>, <leedom@...lsio.com>,
	<praveenm@...lsio.com>, <anish@...lsio.com>,
	<nirranjan@...lsio.com>, <kumaras@...lsio.com>
Subject: Re: [PATCHv2 net-next 0/3] RDMA/cxgb4,cxgb4vf,cxgb4i,csiostor:
 Cleanup macros

On Wed, Nov 05, 2014 at 14:54:43 -0500, David Miller wrote:
> From: Hariprasad Shenai <hariprasad@...lsio.com>
> Date: Tue,  4 Nov 2014 08:20:54 +0530
> 
> > It's not really the "hardware" which generates these hardware constant symbolic
> > macros/register defines of course, it's scripts developed by the hardware team.
> > Various patches have ended up changing the style of the symbolic macros/register
> > defines and some of them used the macros/register defines that matches the
> > output of the script from the hardware team.
> 
> We've told you that we don't care what format your internal whatever uses
> for these macros.
> 
> We have standards, tastes, and desires and reasons for naming macros
> in a certain way in upstream kernel code.
> 
> I consider it flat out unacceptable to use macros with one letter
> prefixes like "S_".  You simply should not do this.
> 

Okay. We’ll clean up all of the macros to match the files' original style. We
do need to change the sense of the *_MASK macros since they don’t match how we 
use them as field tokens.  Also the *_SHIFT, *_MASK and *_GET names are
sucking up space and making lines wrap unnecessarily, creating readability
problems.  Can we change these to *_S, *_M and *_G?  E.g.:

-#define  INGPADBOUNDARY_MASK    0x00000070U
-#define  INGPADBOUNDARY_SHIFT   4
-#define  INGPADBOUNDARY(x)      ((x) << INGPADBOUNDARY_SHIFT)
-#define  INGPADBOUNDARY_GET(x)  (((x) & INGPADBOUNDARY_MASK) \
-                                 >> INGPADBOUNDARY_SHIFT)
+#define  INGPADBOUNDARY_M       0x00000007U
+#define  INGPADBOUNDARY_S       4
+#define  INGPADBOUNDARY(x)      ((x) << INGPADBOUNDARY_S)
+#define  INGPADBOUNDARY_G(x)    (((x) >> INGPADBOUNDARY_S) \
+                                 & INGPADBOUNDARY_M)


 
Thanks,
Hari
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