s390/eadm: fix CONFIG_BLOCK include dependency

Web:        https://git.kernel.org/torvalds/c/366b77ae43c5a3bf1a367f15ec8bc16e05035f14
Commit:     366b77ae43c5a3bf1a367f15ec8bc16e05035f14
Parent:     4bf772b14675411a69b3c807f73006de0fe4b649
Refname:    refs/heads/master
Author:     Sebastian Ott <[email protected]>
AuthorDate: Tue Jan 23 13:58:05 2018 +0100
Committer:  Martin Schwidefsky <[email protected]>
CommitDate: Fri Feb 2 10:47:14 2018 +0100

    s390/eadm: fix CONFIG_BLOCK include dependency
    
    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 <[email protected]>
    Signed-off-by: Sebastian Ott <[email protected]>
    Signed-off-by: Martin Schwidefsky <[email protected]>
---
 arch/s390/include/asm/eadm.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h
index eb5323161f11..bb63b2afdf6f 100644
--- a/arch/s390/include/asm/eadm.h
+++ b/arch/s390/include/asm/eadm.h
@@ -4,7 +4,7 @@
 
 #include <linux/types.h>
 #include <linux/device.h>
-#include <linux/blkdev.h>
+#include <linux/blk_types.h>
 
 struct arqb {
 	u64 data;
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