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#!/bin/sh
# This script takes two arguments: a top-level module name, and a kernel version string
#
# It will search the entire /lib/modules directory tree for the given kernel version,
# and find all modules that are dependent (even indirectly) on the specified module.
# After producing that list, it will remove all those modules.
base="${1}"
deptree="${base}"
rmlist=""
founddep=1
checkmod() {
SAVEIFS="${IFS}"
IFS=","
modname=`basename ${1}`
modname=${modname%.ko}
if test "${modname}" = "${base}"; then
rmlist="${rmlist} ${1}"
IFS="${SAVEIFS}"
return
fi
for dep in `modinfo -F depends ${1}`; do
for mod in ${deptree}; do
if test "${dep}" = "${mod}"; then
addit=1
for checkmod in ${deptree}; do
if test "${checkmod}" = "${modname}"; then
addit=0
break
fi
done
if test "${addit}" = "1"; then
deptree="${deptree},${modname%.ko}"
rmlist="${rmlist} ${1}"
founddep=1
fi
fi
done
done
IFS="${SAVEIFS}"
}
while test "${founddep}" = "1"; do
founddep=0
find /lib/modules/${2}/misc -name \*.ko -print > /tmp/modlist.$$ 2> /dev/null
find /lib/modules/${2}/extra -name \*.ko -print >> /tmp/modlist.$$ 2> /dev/null
find /lib/modules/${2}/zaptel -name \*.ko -print >> /tmp/modlist.$$ 2> /dev/null
find /lib/modules/${2}/dahdi -name \*.ko -print >> /tmp/modlist.$$ 2> /dev/null
exec 9<&0 < /tmp/modlist.$$
while read mod; do
checkmod ${mod}
done
exec 0<&9 9<&-
rm /tmp/modlist.$$
done
if test -n "${rmlist}"; then
for mod in ${rmlist}; do
rm -f ${mod}
done
fi
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