[PATCH] mshv: Change parameter passing to hv_call_create_partition()

[PATCH] mshv: Change parameter passing to hv_call_create_partition()

[Mukesh R]

At present, mshv_ioctl_create_partition() for unknown reasons passes two
aggregate parameters by value to hv_call_create_partition(). Change that
to pass them by reference.

Signed-off-by: Mukesh R <mrathor@linux.microsoft.com>
---
 drivers/hv/mshv_root.h         |  4 ++--
 drivers/hv/mshv_root_hv_call.c | 12 ++++++------
 drivers/hv/mshv_root_main.c    |  5 ++---
 3 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/hv/mshv_root.h b/drivers/hv/mshv_root.h
index 1f086dcb7aa1..c61b52db7f00 100644
--- a/drivers/hv/mshv_root.h
+++ b/drivers/hv/mshv_root.h
@@ -275,8 +275,8 @@ void mshv_vp_stats_unmap(u64 partition_id, u32 vp_index,
 
 int hv_call_withdraw_memory(u64 count, int node, u64 partition_id);
 int hv_call_create_partition(u64 flags,
-			     struct hv_partition_creation_properties creation_properties,
-			     union hv_partition_isolation_properties isolation_properties,
+			     struct hv_partition_creation_properties *cr_prop,
+			     union hv_partition_isolation_properties *isol_prop,
 			     u64 *partition_id);
 int hv_call_initialize_partition(u64 partition_id);
 int hv_call_finalize_partition(u64 partition_id);
diff --git a/drivers/hv/mshv_root_hv_call.c b/drivers/hv/mshv_root_hv_call.c
index e761addda50e..bf0f90515dad 100644
--- a/drivers/hv/mshv_root_hv_call.c
+++ b/drivers/hv/mshv_root_hv_call.c
@@ -86,8 +86,8 @@ int hv_call_withdraw_memory(u64 count, int node, u64 partition_id)
 }
 
 int hv_call_create_partition(u64 flags,
-			     struct hv_partition_creation_properties creation_properties,
-			     union hv_partition_isolation_properties isolation_properties,
+			     struct hv_partition_creation_properties *cr_prop,
+			     union hv_partition_isolation_properties *isol_prop,
 			     u64 *partition_id)
 {
 	struct hv_input_create_partition *input;
@@ -105,11 +105,11 @@ int hv_call_create_partition(u64 flags,
 		input->flags = flags;
 		input->compatibility_version = HV_COMPATIBILITY_21_H2;
 
-		memcpy(&input->partition_creation_properties, &creation_properties,
-		       sizeof(creation_properties));
+		memcpy(&input->partition_creation_properties, cr_prop,
+		       sizeof(*cr_prop));
 
-		memcpy(&input->isolation_properties, &isolation_properties,
-		       sizeof(isolation_properties));
+		memcpy(&input->isolation_properties, isol_prop,
+		       sizeof(*isol_prop));
 
 		status = hv_do_hypercall(HVCALL_CREATE_PARTITION,
 					 input, output);
diff --git a/drivers/hv/mshv_root_main.c b/drivers/hv/mshv_root_main.c
index cc2cfce2aefd..89fe6fb9244a 100644
--- a/drivers/hv/mshv_root_main.c
+++ b/drivers/hv/mshv_root_main.c
@@ -2088,9 +2088,8 @@ mshv_ioctl_create_partition(void __user *user_arg, struct device *module_dev)
 	if (ret)
 		goto free_partition;
 
-	ret = hv_call_create_partition(creation_flags,
-				       creation_properties,
-				       isolation_properties,
+	ret = hv_call_create_partition(creation_flags, &creation_properties,
+				       &isolation_properties,
 				       &pt_id);
 	if (ret)
 		goto cleanup_irq_srcu;
-- 
2.51.2.vfs.0.1