static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx)
{
	/* start timer, if not already started */
	if (!(hrtimer_active(&ctx->tx_timer) || atomic_read(&ctx->stop)))
		hrtimer_start(&ctx->tx_timer,
				ktime_set(0, ctx->timer_interval),
				HRTIMER_MODE_REL);
}

Unknown