From mboxrd@z Thu Jan  1 00:00:00 1970
From: John Reiser <jreiser-Po6cBsTGB2ZWk0Htik3J/w@public.gmane.org>
Subject: build initramfs: unclear _mpargs in instmods()
Date: Mon, 29 Aug 2011 14:42:15 -0700
Message-ID: <4E5C07B7.4050907@bitwagon.com>
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
Return-path: <initramfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Sender: initramfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
List-ID: <initramfs.vger.kernel.org>
Content-Type: text/plain; charset="us-ascii"
To: initramfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

The local variable _mpargs in function instmods() in file dracut-functions
looks peculiar.  The documentation is non-existent, but still ...

First, $_mpargs is not passed to modprobe via for_each_kmod_dep.
This is strange because my guess is that "_mpargs" means
"extra arguments for modprobe".

Second, the leading "--" will be lopped when a leading pathname
is stripped via
	_mod=${_mod##*/}
It seems to me that a leading "--" should inhibit modification.

Here's the corresponding patch to current HEAD (from dracut-013.)

diff --git a/dracut-functions b/dracut-functions
index a3340e4..c28766e 100755
--- a/dracut-functions
+++ b/dracut-functions
@@ -919,7 +919,6 @@ instmods() {
                 fi
                 ;;
             --*)
-                _mod=${_mod##*/}
                 _mpargs+=" $_mod";;
             i2o_scsi) shift; continue;; # Do not load this diagnostic-only module
             *)  _mod=${_mod##*/}
@@ -942,7 +941,7 @@ instmods() {
                 # ok, load the module, all its dependencies, and any firmware
                 # it may require
                 for_each_kmod_dep install_kmod_with_fw $_mod \
-                    --set-version $kernel ${_moddirname}
+                    --set-version $kernel ${_moddirname} $_mpargs
                 ((_ret+=$?))
                 ;;
         esac

--