linux-kernel - Re: [PATCH] modpost: Fix secondary errors seen if a single module build fails

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Message-ID: <5235CCD8.4080304@roeck-us.net>
Date:	Sun, 15 Sep 2013 08:06:00 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
CC:	linux-kbuild <linux-kbuild@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Michal Marek <mmarek@...e.cz>,
	Rusty Russell <rusty@...tcorp.com.au>
Subject: Re: [PATCH] modpost: Fix secondary errors seen if a single module
 build fails

On 09/15/2013 01:15 AM, Geert Uytterhoeven wrote:
> On Sun, Sep 15, 2013 at 6:39 AM, Guenter Roeck <linux@...ck-us.net> wrote:
>> -      cmd_modpost = $(MODLISTCMD) | sed 's/\.ko$/.o/' | $(modpost) -s -T -
>> +      cmd_modpost = $(MODLISTCMD) | sed 's/\.ko$/.o/' | \
>> +       while read a; do [ -f $a ] && echo $a; done | $(modpost) -s -T -
>
> I'm wondering whether this can be filtered without using a shell while loop?
> E.g. using "ls"?
>

An alternative would be "$(MODLISTCMD) | sed 's/\.ko$/.o/' | xargs -r ls 2>/dev/null | ..."

I was a bit concerned about side effects of unexpected ls output.
But I'll be happy to change it along that line if people think
that it is better (and/or less ugly).

Guenter

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