From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Tue, 23 Jan 2018 13:58:05 +0100
Subject: s390/eadm: fix CONFIG_BLOCK include dependency
Git-commit: 366b77ae43c5a3bf1a367f15ec8bc16e05035f14
Patch-mainline: v4.16-rc1
References: bsc#1103421

Commit 2a842acab109 ("block: introduce new block status code type")
added blk_status_t usage to the eadm subchannel driver. However
blk_status_t is unknown when included via <linux/blkdev.h> for CONFIG_BLOCK=n.

Only include <linux/blk_types.h> since this is the only dependency eadm has.

This fixes build failures like below:
In file included from drivers/s390/cio/eadm_sch.c:24:0:
./arch/s390/include/asm/eadm.h:111:4: error: unknown type name 'blk_status_t'; did you mean 'si_status'?
    blk_status_t error);

Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 arch/s390/include/asm/eadm.h |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/s390/include/asm/eadm.h
+++ b/arch/s390/include/asm/eadm.h
@@ -4,6 +4,7 @@
 #include <linux/types.h>
 #include <linux/device.h>
 #include <linux/blkdev.h>
+#include <linux/blk_types.h>
 
 struct arqb {
 	u64 data;