diff options
| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2015-09-14 10:48:45 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2015-09-14 21:38:12 -0700 |
| commit | 4a655ad4c2b83815ccab5057e29bf0f6c981a94e (patch) | |
| tree | 7d9b00d8b4baa7a9f86ef869e242748a5ab2e517 /drivers | |
| parent | f2cfa7043940cdda5c9e945b1cf5c66da172bc33 (diff) | |
greybus: loopback: add response len to loopback protocol
This patch adds a len field to the loopback protocol.
This field is validated in gb_loopback_transfer() and stuffed in
gb_loopback_request_recv().
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Patrick Titiano <ptitiano@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/greybus/greybus_protocols.h | 1 | ||||
| -rw-r--r-- | drivers/staging/greybus/loopback.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/greybus/greybus_protocols.h b/drivers/staging/greybus/greybus_protocols.h index 77a7c4956929..76fea9a8ef27 100644 --- a/drivers/staging/greybus/greybus_protocols.h +++ b/drivers/staging/greybus/greybus_protocols.h @@ -917,6 +917,7 @@ struct gb_loopback_transfer_request { } __packed; struct gb_loopback_transfer_response { + __le32 len; __u8 data[0]; } __packed; diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c index a9b901fbeb5c..ba65457f9f70 100644 --- a/drivers/staging/greybus/loopback.c +++ b/drivers/staging/greybus/loopback.c @@ -524,6 +524,7 @@ static int gb_loopback_request_recv(u8 type, struct gb_operation *operation) return -ENOMEM; } response = operation->response->payload; + response->len = cpu_to_le32(len); memcpy(response->data, request->data, len); } return 0; |