diff options
| -rw-r--r-- | drivers/staging/greybus/operation.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/staging/greybus/operation.c b/drivers/staging/greybus/operation.c index c4898f61b1f7..53fffb190dbf 100644 --- a/drivers/staging/greybus/operation.c +++ b/drivers/staging/greybus/operation.c @@ -455,10 +455,23 @@ err_cache: return NULL; } +/* + * Create a new operation associated with the given connection. The + * request and response sizes provided are the number of bytes + * required to hold the request/response payload only. Both of + * these are allowed to be 0. Note that 0x00 is reserved as an + * invalid operation type for all protocols, and this is enforced + * here. + */ struct gb_operation *gb_operation_create(struct gb_connection *connection, u8 type, size_t request_size, size_t response_size) { + if (WARN_ON_ONCE(!type)) + return NULL; + if (WARN_ON_ONCE(type & GB_OPERATION_TYPE_RESPONSE)) + type &= ~GB_OPERATION_TYPE_RESPONSE; + return gb_operation_create_common(connection, true, type, request_size, response_size); } |