[PATCH for-next 2/4] nvme: compact nvme_uring_cmd_pdu struct

[Kanchan Joshi]

From: Anuj Gupta <anuj20.g at samsung.com>

Mark this packed so that we can create bit more space in its container
i.e. io_uring_cmd. This is in preparation to support multipathing on
uring-passthrough.
Move its definition to nvme.h as well.

Signed-off-by: Anuj Gupta <anuj20.g at samsung.com>
---
 drivers/nvme/host/ioctl.c | 14 --------------
 drivers/nvme/host/nvme.h  | 14 ++++++++++++++
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/nvme/host/ioctl.c b/drivers/nvme/host/ioctl.c
index 9227e07f717e..fc02eddd4977 100644
--- a/drivers/nvme/host/ioctl.c
+++ b/drivers/nvme/host/ioctl.c
@@ -340,20 +340,6 @@ struct nvme_uring_data {
 	__u32	timeout_ms;
 };
 
-/*
- * This overlays struct io_uring_cmd pdu.
- * Expect build errors if this grows larger than that.
- */
-struct nvme_uring_cmd_pdu {
-	union {
-		struct bio *bio;
-		struct request *req;
-	};
-	void *meta; /* kernel-resident buffer */
-	void __user *meta_buffer;
-	u32 meta_len;
-};
-
 static inline struct nvme_uring_cmd_pdu *nvme_uring_cmd_pdu(
 		struct io_uring_cmd *ioucmd)
 {
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 7323a2f61126..9d3ff6feda06 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -165,6 +165,20 @@ struct nvme_request {
 	struct nvme_ctrl	*ctrl;
 };
 
+/*
+ * This overlays struct io_uring_cmd pdu.
+ * Expect build errors if this grows larger than that.
+ */
+struct nvme_uring_cmd_pdu {
+	union {
+		struct bio *bio;
+		struct request *req;
+	};
+	void *meta; /* kernel-resident buffer */
+	void __user *meta_buffer;
+	u32 meta_len;
+} __packed;
+
 /*
  * Mark a bio as coming in through the mpath node.
  */
-- 
2.25.1