drivers: hv: kvp: Cleanup the kernel/user protocol
Now, cleanup the user/kernel KVP protocol by using the same structure
definition that is used for host/guest KVP protocol. This simplifies the code.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index b822978..75aee67 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -113,30 +113,6 @@
* (not supported), a NULL key string is returned.
*/
-/*
- *
- * The following definitions are shared with the user-mode component; do not
- * change any of this without making the corresponding changes in
- * the KVP user-mode component.
- */
-
-enum hv_ku_op {
- KVP_REGISTER = 0, /* Register the user mode component */
- KVP_KERNEL_GET, /* Kernel is requesting the value */
- KVP_KERNEL_SET, /* Kernel is providing the value */
- KVP_USER_GET, /* User is requesting the value */
- KVP_USER_SET /* User is providing the value */
-};
-
-struct hv_ku_msg {
- __u32 kvp_index; /* Key index */
- __u8 kvp_key[HV_KVP_EXCHANGE_MAX_KEY_SIZE]; /* Key name */
- __u8 kvp_value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE]; /* Key value */
-};
-
-
-
-
/*
* Registry value types.
@@ -149,6 +125,7 @@
KVP_OP_SET,
KVP_OP_DELETE,
KVP_OP_ENUMERATE,
+ KVP_OP_REGISTER,
KVP_OP_COUNT /* Number of operations, must be last. */
};
@@ -182,7 +159,10 @@
struct hv_kvp_msg {
struct hv_kvp_hdr kvp_hdr;
- struct hv_kvp_msg_enumerate kvp_data;
+ union {
+ struct hv_kvp_msg_enumerate kvp_enum_data;
+ char kvp_version[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
+ } body;
} __attribute__((packed));
#ifdef __KERNEL__