linux-kernel - Re: [PATCH 1/1] depmod: pass -P $CONFIG_SYMBOL

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Date:	Thu, 31 Jan 2013 10:50:42 +0000
From:	James Hogan <james.hogan@...tec.com>
To:	Michal Marek <mmarek@...e.cz>
CC:	<linux-kernel@...r.kernel.org>, <linux-kbuild@...r.kernel.org>,
	"Mike Frysinger" <vapier@...too.org>,
	Yoshinori Sato <ysato@...rs.sourceforge.jp>,
	<uclinux-dist-devel@...ckfin.uclinux.org>
Subject: Re: [PATCH 1/1] depmod: pass -P $CONFIG_SYMBOL_PREFIX

Hi Michal,

On 31/01/13 10:37, Michal Marek wrote:
> On 31.1.2013 10:41, James Hogan wrote:
>> On architectures which have symbol prefixes, depmod emits lots of false
>> warnings like this:
>>
>> WARNING: $module.ko needs unknown symbol $symbol
>>
>> This is because depmod isn't being passed the -P <symbol_prefix>
>> arguments to specify the symbol prefix to ignore. This option is
>> included since the 3.13 release of module-init-tools.
>>
>> Update scripts/depmod.sh to take extra arguments which are passed
>> through directly to depmod, and update the main Makefile to pass
>> -P $(CONFIG_SYMBOL_PREFIX to scripts/depmod.sh, but only if
>> CONFIG_SYMBOL_PREFIX is set and non-empty.
> 
> OK.
> 
> 
>> scripts/depmod.sh also drops the -P arguments if depmod --version
>> reports module-init-tools with a version number < 3.13.
> 
> You can replace the test with a simple
> 
> "$DEPMOD" -P _ --help 2>/dev/null >/dev/null

Thanks for the suggestion. It would be much cleaner, but unfortunately I
tried this on module-init-tools 3.3-pre2 and module-init-tools 3.9 and
both still return success.

Cheers
James

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