linux-kernel - Re: [PATCH V7 2/7] ARM: dt: change .dtb build rules to build in dts directory

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Date:	Mon, 03 Dec 2012 10:26:24 -0700
From:	Stephen Warren <swarren@...dotorg.org>
To:	Rob Herring <robherring2@...il.com>
CC:	Michal Marek <mmarek@...e.cz>,
	Grant Likely <grant.likely@...retlab.ca>,
	linux-arch@...r.kernel.org, Russell King <linux@....linux.org.uk>,
	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
	Olof Johansson <olof@...om.net>,
	Stephen Warren <swarren@...dia.com>,
	Sam Ravnborg <sam@...nborg.org>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH V7 2/7] ARM: dt: change .dtb build rules to build in dts
 directory

On 12/03/2012 09:15 AM, Rob Herring wrote:
> On 11/27/2012 05:29 PM, Stephen Warren wrote:
>> From: Grant Likely <grant.likely@...retlab.ca>
>>
>> The current rules have the .dtb files build in a different directory
>> from the .dts files. The only reason for this is that it was what
>> PowerPC has done historically. This patch changes ARM to use the generic
>> dtb rule which builds .dtb files in the same directory as the source .dts.
> 
> [snip]
> 
>> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
>> index a17d5ab..cb217f8 100644
>> --- a/arch/arm/boot/dts/Makefile
>> +++ b/arch/arm/boot/dts/Makefile
>> @@ -136,4 +136,12 @@ dtb-$(CONFIG_ARCH_VT8500) += vt8500-bv07.dtb \
>>  	wm8650-mid.dtb
>>  dtb-$(CONFIG_ARCH_ZYNQ) += zynq-zc702.dtb
>>  
>> +targets += dtbs
>>  endif
>> +
>> +dtbs: $(addprefix $(obj)/, $(dtb-y))
>> +	# *.dtb used to be generated in the directory above. Clean out the
>> +	# old build results so people don't accidentally use them.
>> +	rm -f $(obj)/../*.dtb
> 
> Do you intend for this to print out? Seems a little noisy to me for a
> one-time problem. Are you trying to tell users the dtb files moved or
> just prevent them from using the old ones? Quietly removing them would
> still accomplish the latter.

Oh, I just wasn't thinking; I guess this should be @rm or similar. Will
you fix this up locally since you've applied the patches?
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