static struct gb_operation *
gb_operation_create_incoming(struct gb_connection *connection, u16 id,
u8 type, void *data, size_t size)
{
struct gb_operation *operation;
size_t request_size;
unsigned long flags = GB_OPERATION_FLAG_INCOMING;
/* Caller has made sure we at least have a message header. */
request_size = size - sizeof(struct gb_operation_msg_hdr);
if (!id)
flags |= GB_OPERATION_FLAG_UNIDIRECTIONAL;
operation = gb_operation_create_common(connection, type,
request_size,
GB_REQUEST_TYPE_INVALID,
flags, GFP_ATOMIC);
if (!operation)
return NULL;
operation->id = id;
memcpy(operation->request->header, data, size);
return operation;
}
/*
* 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,
gfp_t gfp)
{
if (WARN_ON_ONCE(type == GB_OPERATION_TYPE_INVALID))
return NULL;
if (WARN_ON_ONCE(type & GB_MESSAGE_TYPE_RESPONSE))
type &= ~GB_MESSAGE_TYPE_RESPONSE;
return gb_operation_create_common(connection, type,
request_size, response_size, 0, gfp);
}
/*
* 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_flags(struct gb_connection *connection,
u8 type, size_t request_size,
size_t response_size, unsigned long flags,
gfp_t gfp)
{
if (WARN_ON_ONCE(type == GB_REQUEST_TYPE_INVALID))
return NULL;
if (WARN_ON_ONCE(type & GB_MESSAGE_TYPE_RESPONSE))
type &= ~GB_MESSAGE_TYPE_RESPONSE;
if (WARN_ON_ONCE(flags & ~GB_OPERATION_FLAG_USER_MASK))
flags &= GB_OPERATION_FLAG_USER_MASK;
return gb_operation_create_common(connection, type,
request_size, response_size,
flags, gfp);
}
