From a1c547e7e8e5c4a420a763451eb6af49b329af68 Mon Sep 17 00:00:00 2001
From: Jan Steffens <jan.steffens@gmail.com>
Date: Tue, 15 Jun 2010 17:00:54 +0200
Subject: Implement explicit module depends

Needed to get libcrc32c and therefore btrfs to work. Also remove the
equivalent section in autodetect, which wasn't working anyway.
---
 functions          | 19 ++++++++++++++-----
 install/autodetect | 15 ++-------------
 2 files changed, 16 insertions(+), 18 deletions(-)

diff --git a/functions b/functions
index 49b4ab4..91145f1 100644
--- a/functions
+++ b/functions
@@ -145,9 +145,11 @@ HAS_MODULES="n"
 #modules are handled specially in order to enable autodetection
 add_module ()
 {
-    local fil path fw mod deps
-    #cleanup - remove .ko, replace - and _ with [-_] to match either
-    fil=$(basename "${1}" | sed -e "s|[-_]|\[-_\]|g" -e "s|\.ko$||g")
+    local m fil path fw mod deps
+    #cleanup - remove .ko, replace - with _
+    m=$(basename "${1}" | sed -e 's|-|_|g' -e 's|\.ko$||g')
+    #find pattern - replace _ with [-_] to match either
+    fil=$(echo "$m" | sed -e 's|_|\[-_\]|g')
 
     found=0
     for path in $(find "${MODULEDIR}" -type f -name "${fil}.ko"); do
@@ -164,8 +166,15 @@ add_module ()
         HAS_MODULES="y"
         add_file "${path}" && found=1
     done
-    if [ ${found} -eq 0 ]; then
-        err "module '$fil' not found"
+    if [ ${found} -eq 1 ]; then
+        #explicit module depends
+        case "$m" in 
+            fat) add_module "nls_cp437" ;;
+            ocfs2) add_module "configfs" ;;
+            libcrc32c) add_module "crc32c"; add_module "crc32c_intel" ;;
+        esac
+    else
+        err "module '$m' not found"
     fi
 }
 
diff --git a/install/autodetect b/install/autodetect
index c1a6b76..914a96b 100644
--- a/install/autodetect
+++ b/install/autodetect
@@ -43,19 +43,8 @@ install ()
         err "User does not have proper permissions to read superblocks, raid and filesystem modules are not detected"
     fi
 
-    for modname in ${AUTODETECT}; do
-        grep "^${modname}$" "${MODULE_FILE}" >/dev/null 2>&1 && continue
-        case "${m}" in 
-            #*/ieee1394/*) echo -e "sbp2\nsd_mod\nsr_mod" >> "${MODULE_FILE}";;
-            *ext3*) echo "jbd" >> "${MODULE_FILE}" ;;
-            *ext4*) echo -e "jbd2\nmbcache\ncrc16" >> "${MODULE_FILE}" ;;
-            *afs*) echo "rxrpc" >> "${MODULE_FILE}" ;;
-            *cramfs*) echo "zlib_inflate" >> "${MODULE_FILE}" ;;
-            *isofs*) echo "zlib_inflate" >> "${MODULE_FILE}" ;;
-            *msdos*) echo "fat" >> "${MODULE_FILE}" ;;
-            *vfat*) echo -e "fat\nnls_cp437" >> "${MODULE_FILE}" ;;
-            *ocfs2*) echo -e "ocfs2_dlm\njbd\nocfs2_nodemanager\nconfigfs" >> "${MODULE_FILE}" ;;
-        esac
+    for m in ${AUTODETECT}; do
+        modname="$(basename ${m%.ko})"
         echo "${modname}" >> "${MODULE_FILE}"
     done
 
-- 
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