efi_loader: fill simple network protocol revision

Provide the simple network protocol revision.
This revision number could be used to identify backwards compatible
enhancements of the protocol.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Alexander Graf <agraf@suse.de>

include/efi_api.h

@@ -600,6 +600,9 @@ struct efi_simple_network_mode {
 #define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS           0x08
 #define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST 0x10
 
+/* revision of the simple network protocol */
+#define EFI_SIMPLE_NETWORK_PROTOCOL_REVISION	0x00010000
+
 struct efi_simple_network
 {
 	u64 revision;

lib/efi_loader/efi_net.c

@@ -228,6 +228,7 @@ int efi_net_register(void)
 	netobj->parent.protocols[2].guid = &efi_pxe_guid;
 	netobj->parent.protocols[2].protocol_interface = &netobj->pxe;
 	netobj->parent.handle = &netobj->net;
+	netobj->net.revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;
 	netobj->net.start = efi_net_start;
 	netobj->net.stop = efi_net_stop;
 	netobj->net.initialize = efi_net_initialize;