greybus: loopback: add reserved fields to track firmware latencies

The greybus specification has been extended to include two new reserved
fields, which the implementation is using to track internal firmware
latencies. This change adds the appropriate fields to the corresponding
kernel header.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

diff --git a/drivers/staging/greybus/greybus_protocols.h b/drivers/staging/greybus/greybus_protocols.h
index 44a2133..fedb1b1 100644 (file)
--- a/drivers/staging/greybus/greybus_protocols.h
+++ b/drivers/staging/greybus/greybus_protocols.h
@@ -958,6 +958,8 @@ struct gb_loopback_transfer_request {
 
 struct gb_loopback_transfer_response {
        __le32  len;
+       __le32  reserved0;
+       __le32  reserved1;
        __u8    data[0];
 } __packed;