static int optee_ffa_to_msg_param()

in optee/ffa_abi.c [227:260]

• 31 lines of code
• 10 McCabe index (conditional complexity)

static int optee_ffa_to_msg_param(struct optee *optee,
				  struct optee_msg_param *msg_params,
				  size_t num_params,
				  const struct tee_param *params)
{
	size_t n;

	for (n = 0; n < num_params; n++) {
		const struct tee_param *p = params + n;
		struct optee_msg_param *mp = msg_params + n;

		switch (p->attr) {
		case TEE_IOCTL_PARAM_ATTR_TYPE_NONE:
			mp->attr = TEE_IOCTL_PARAM_ATTR_TYPE_NONE;
			memset(&mp->u, 0, sizeof(mp->u));
			break;
		case TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_INPUT:
		case TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_OUTPUT:
		case TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_INOUT:
			optee_to_msg_param_value(mp, p);
			break;
		case TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_INPUT:
		case TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_OUTPUT:
		case TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_INOUT:
			if (to_msg_param_ffa_mem(mp, p))
				return -EINVAL;
			break;
		default:
			return -EINVAL;
		}
	}

	return 0;
}