From e75a06dd435fbf5348314997988b96b4f1cb2e4f Mon Sep 17 00:00:00 2001
From: Li Zhijian <zhijianx.li@intel.com>
Date: Tue, 19 Jun 2018 16:39:29 +0800
Subject: [PATCH] lkp qemu: use local modules.cgz for lkp qemu if needed

if "-m /path/to/modules.cgz" is specified, use this modules.cgz directly
instead of downloading from web

Signed-off-by: Li Zhijian <zhijianx.li@intel.com>
Signed-off-by: Philip Li <philip.li@intel.com>
---
 lib/kexec.sh  | 18 ++++++++++++++++++
 lkp-exec/qemu |  1 +
 2 files changed, 19 insertions(+)

diff --git a/lib/kexec.sh b/lib/kexec.sh
index ae15a93e6..ee34468d8 100755
--- a/lib/kexec.sh
+++ b/lib/kexec.sh
@@ -51,6 +51,21 @@ initrd_is_correct()
 	gzip -dc $file | cpio -t >/dev/null
 }
 
+# for lkp qemu, it will set LKP_LOCAL_RUN=1
+use_local_modules_initrds()
+{
+	[ "$LKP_LOCAL_RUN" = "1" ] && [ "$modules_initrd" ] && {
+		# lkp qemu will create a link to modules.cgz under $CACHE_DIR
+		# ls -al /root/.lkp/cache/modules.cgz
+		# lrwxrwxrwx 1 root root 21 Jun 19 08:13 /root/.lkp/cache/modules.cgz -> /lkp-qemu/modules.cgz
+		local local_modules=$CACHE_DIR/$(basename $modules_initrd)
+		[ -e $local_modules ] || return
+		initrds="$local_modules "
+		echo "use local modules: $local_modules"
+		unset modules_initrd
+	}
+}
+
 download_initrd()
 {
 	local _initrd
@@ -58,6 +73,9 @@ download_initrd()
 
 	echo "downloading initrds ..."
 	set_job_state "wget_initrd"
+
+	use_local_modules_initrds
+
 	for _initrd in $(echo $initrd $tbox_initrd $job_initrd $lkp_initrd $bm_initrd $modules_initrd $linux_headers_initrd $audio_sof_initrd $syzkaller_initrd $linux_selftests_initrd $linux_perf_initrd | tr , ' ')
 	do
 		_initrd=$(echo $_initrd | sed 's/^\///')
diff --git a/lkp-exec/qemu b/lkp-exec/qemu
index 855cbd138..dec35267f 100755
--- a/lkp-exec/qemu
+++ b/lkp-exec/qemu
@@ -48,6 +48,7 @@ validate_options()
 	need_module="$(get_job_env $job_script 'need_modules')" || return
 	[[ "$need_module" = "true" ]] && {
 		[[ ! $opt_modules ]] && echo "kernel module is required, please specify it with '-m'" && return 1
+		[[ ! -e $opt_modules ]] && echo "$opt_modules is not existed" && return 1
 	}
 
 	return 0