From: Jens Axboe <axboe@kernel.dk>
Date: Tue, 31 Jul 2018 09:10:26 -0600
Subject: [PATCH] t10-pi: provide empty t10_pi_complete() for
 !CONFIG_BLK_DEV_INTEGRITY
Git-commit: 08fcf813281ebcf72c69487c1501ad91b7121cdb
Patch-mainline: v4.19-rc1
References: bsc#1104967,FATE#325924

Fixes a link failure whtn BLK_DEV_INTEGRITY isn't defined.

Fixes: 10c41ddd6132 ("block: move dif_prepare/dif_complete functions to block layer")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Hannes Reinecke <hare@suse.com>
---
 include/linux/t10-pi.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/linux/t10-pi.h b/include/linux/t10-pi.h
index 5a427c289f58..b9626aa7e90c 100644
--- a/include/linux/t10-pi.h
+++ b/include/linux/t10-pi.h
@@ -51,8 +51,19 @@ extern const struct blk_integrity_profile t10_pi_type1_crc;
 extern const struct blk_integrity_profile t10_pi_type1_ip;
 extern const struct blk_integrity_profile t10_pi_type3_crc;
 extern const struct blk_integrity_profile t10_pi_type3_ip;
+
+#ifdef CONFIG_BLK_DEV_INTEGRITY
 extern void t10_pi_prepare(struct request *rq, u8 protection_type);
 extern void t10_pi_complete(struct request *rq, u8 protection_type,
 			    unsigned int intervals);
+#else
+static inline void t10_pi_complete(struct request *rq, u8 protection_type,
+				   unsigned int intervals)
+{
+}
+static inline void t10_pi_prepare(struct request *rq, u8 protection_type)
+{
+}
+#endif
 
 #endif
-- 
2.16.4