linux-kernel - Re: [PATCHv2 00/11]Get rid of all the old macro DMA_nBIT_MASK and use DMA_BIT

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Message-Id: <20090219151409.0d61de2a.akpm@linux-foundation.org>
Date:	Thu, 19 Feb 2009 15:14:09 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	stefanr@...6.in-berlin.de, yanghy@...fujitsu.com,
	davem@...emloft.net, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, petkovbb@...glemail.com
Subject: Re: [PATCHv2 00/11]Get rid of all the old macro DMA_nBIT_MASK and
 use DMA_BIT_MASK(n) instead

On Thu, 19 Feb 2009 16:08:51 +0100
Ingo Molnar <mingo@...e.hu> wrote:

> 
> * Stefan Richter <stefanr@...6.in-berlin.de> wrote:
> 
> > Yang Hongyang wrote:
> > > v1->v2:fix s/micro/macro typo and keep the old defines
> > >             of DMA_nBIT_MASK
> > > ----------------------
> > > Replace all DMA_nBIT_MASK macro with the new DMA_BIT_MASK(n) macro
> > > 
> > > 01:Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)
> > > 02:Replace all DMA_48BIT_MASK macro with DMA_BIT_MASK(48)
> > > 03:Replace all DMA_40BIT_MASK macro with DMA_BIT_MASK(40)
> > > 04:Replace all DMA_39BIT_MASK macro with DMA_BIT_MASK(39)
> > > 05:Replace all DMA_35BIT_MASK macro with DMA_BIT_MASK(35)
> > > 06:Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)
> > > 07:Replace all DMA_31BIT_MASK macro with DMA_BIT_MASK(31)
> > > 08:Replace all DMA_30BIT_MASK macro with DMA_BIT_MASK(30)
> > > 09:Replace all DMA_28BIT_MASK macro with DMA_BIT_MASK(28)
> > > 10:Replace all DMA_24BIT_MASK macro with DMA_BIT_MASK(24)
> > > 11:Update the old macro DMA_nBIT_MASK related documentations
> > > 
> > 
> > Shouldn't you organize the patch series per subsystem, not per old
> > macro?  And then Cc the respective maintainers?
> > 
> > As it stands, the patches cannot be routed through the normal channels;
> > yet there is no fundamental reason to handle these patches differently
> > from normal patches.
> 
> Traditionally such trivially correct convert-it-all patches 
> lived in -mm and were merged upstream in one go, near the end of 
> the merge window.
> 
> Sprinkling it into dozens of subsystem channels (some of which 
> are very unreliable) is neither good nor an economic use of our 
> resources.
> 
> Patches that can potentially cause trouble should go via the 
> usual channels.
> 

yes, fun.

I hit several rejects merging these, easily fixed.  After this lot is
merged there will probably be a few unconverted sites which will need a
second pass.  After that we can think about removing the old #defines.
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