From 4d2ce68835649afebbc5e8816b79426fb04c639f Mon Sep 17 00:00:00 2001
From: James Smart <jsmart2021@gmail.com>
Date: Tue, 19 May 2020 17:05:51 +0300
Subject: [PATCH] nvme: make nvme_ns_has_pi accessible to transports

Move the nvme_ns_has_pi() inline from core.c to the nvme.h header.
This allows use by the transports.

Signed-off-by: James Smart <jsmart2021@gmail.com>
[maxg: added a comment for nvme_ns_has_pi()]
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/nvme/host/core.c | 6 ------
 drivers/nvme/host/nvme.h | 7 +++++++
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index aa168dd58f31..beea013f7b73 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -19,7 +19,6 @@
 #include <linux/pr.h>
 #include <linux/ptrace.h>
 #include <linux/nvme_ioctl.h>
-#include <linux/t10-pi.h>
 #include <linux/pm_qos.h>
 #include <asm/unaligned.h>
 
@@ -204,11 +203,6 @@ static void nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl)
 	nvme_put_ctrl(ctrl);
 }
 
-static inline bool nvme_ns_has_pi(struct nvme_ns *ns)
-{
-	return ns->pi_type && ns->ms == sizeof(struct t10_pi_tuple);
-}
-
 static blk_status_t nvme_error_status(u16 status)
 {
 	switch (status & 0x7ff) {
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 9ed6a3dac537..c83ff69338d8 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -16,6 +16,7 @@
 #include <linux/fault-inject.h>
 #include <linux/rcupdate.h>
 #include <linux/wait.h>
+#include <linux/t10-pi.h>
 
 #include <trace/events/block.h>
 
@@ -399,6 +400,12 @@ struct nvme_ns {
 
 };
 
+/* NVMe ns supports metadata actions by the controller (generate/strip) */
+static inline bool nvme_ns_has_pi(struct nvme_ns *ns)
+{
+	return ns->pi_type && ns->ms == sizeof(struct t10_pi_tuple);
+}
+
 struct nvme_ctrl_ops {
 	const char *name;
 	struct module *module;
-- 
GitLab