From 021da99823c738ff46b554f1526c35b5fc5577dd Mon Sep 17 00:00:00 2001
From: Julian Wiedmann <jwi@linux.ibm.com>
Date: Tue, 6 Jul 2021 10:07:17 +0200
Subject: ccw_init: use DRIVER environment variable

As the ccw.udev rule now only matches BIND uevents, $DRIVER is always
set and we don't need to extract it from sysfs.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
---
 ccw_init | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/ccw_init b/ccw_init
index 3703eaf..032c273 100644
--- a/ccw_init
+++ b/ccw_init
@@ -1,6 +1,7 @@
 #! /bin/sh
 
 [ -z "$DEVPATH" ] && exit 0
+[ -z "$DRIVER" ] && exit 0
 [ "$SUBSYSTEM" != "ccw" ] && exit 0
 
 [ -e /etc/ccw.conf ] && MODE="dracut" || MODE="normal"
@@ -148,8 +149,6 @@ if [ -e $SYSDIR/online ]; then
     [ "$on" = "1" ] && exit 0
 fi
 
-DRIVER=$(readlink $DEVPATH/driver)
-DRIVER=${DRIVER##*/}
 if [ "$DRIVER" = "lcs" -a "$NETTYPE" = "ctc" ]; then
     echo "$CHANNEL" > /sys/bus/ccw/drivers/lcs/unbind
     echo "$CHANNEL" > /sys/bus/ccw/drivers/ctcm/bind
-- 
cgit