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

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Date:	Thu, 31 Jan 2013 11:37:27 +0100
From:	Michal Marek <mmarek@...e.cz>
To:	James Hogan <james.hogan@...tec.com>
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

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

Michal
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