linux-4.9.68: Add spl/zfs modules

Add kernel modules required for the ZFS filesystem.

http://zfsonlinux.org/

Patch by Thomas Kreitler

linux-4.9.68-193.bee

@@ -58,6 +58,49 @@ build_aacraid_driver_update_and_do_depmod() {
     popd
 }
 
+plaininstall_for_modules() {
+    local dir=$1
+    local tar=$2
+    local url=$3
+    local xflags=$4
+    (
+        test -e $tar || wget $url
+        test -d $dir || tar xvf $tar
+        cd $dir
+        ./configure \
+            --prefix=/usr \
+            --with-linux=${S} \
+            --with-linux-obj=${B} \
+            $xflags
+        cd module
+        # depmod call fails when build as user, and would eventually mess up system dirs when run as root
+        sed -i -e 's/depmod/echo skipping depmod/' Makefile
+        make ${BEE_MAKEFLAGS}
+        make modules_install INSTALL_MOD_PATH=${D}
+    )
+}
+
+build_spl_zfs_extra_modules_and_do_depmod() {
+    pushd .
+
+    echo "spl/zfs"
+
+    mkdir -pv ${B}/spl_zfs_extra
+    cd ${B}/spl_zfs_extra
+
+    plaininstall_for_modules spl-0.7.3 spl-0.7.3.tar.gz \
+       https://github.com/zfsonlinux/zfs/releases/download/zfs-0.7.3/spl-0.7.3.tar.gz
+
+    plaininstall_for_modules zfs-0.7.3 zfs-0.7.3.tar.gz \
+       https://github.com/zfsonlinux/zfs/releases/download/zfs-0.7.3/zfs-0.7.3.tar.gz \
+       "--with-spl=${B}/spl_zfs_extra/spl-0.7.3"
+
+    cd ${D}/lib/modules/${FULLKERNELVERSION}
+    depmod -a -b ${D} ${FULLKERNELVERSION}
+
+    popd
+}
+
 mee_patch() {
     echo "PATCH $@"
     bee_patch $@
@@ -851,6 +894,7 @@ mee_install() {
 #    make firmware_install INSTALL_MOD_PATH=${D}
 
     build_aacraid_driver_update_and_do_depmod
+    build_spl_zfs_extra_modules_and_do_depmod
 
     rm -v ${D}/lib/modules/${FULLKERNELVERSION}/{source,build}