Re: [PATCH v1 04/16] ufs: core: mcq: Introduce Multi Circular Queue

Bart Van Assche
2022-09-30T18:37:45Z

On 9/22/22 18:05, Asutosh Das wrote:
> +static int ufshcd_mcq_config_nr_queues(struct ufs_hba *hba)
> +{
> + int i, rem;
> + u32 hbaq_cap, cmp, tot_queues;
> + struct Scsi_Host *host = hba->host;
> +
> + hbaq_cap = hba->mcq_capabilities & 0xff;
> +
> + if (!rw_queues)
> + rw_queues = num_possible_cpus();
> +
> + tot_queues = dev_cmd_queue + read_queues + poll_queues + rw_queues;
> + if (hbaq_cap < tot_queues) {
> + dev_err(hba->dev, "Total queues (%d) exceeds HC capacity (%d)\n",
> + tot_queues, hbaq_cap);
> + return -EOPNOTSUPP;
> + }
> +
> + rem = hbaq_cap - dev_cmd_queue;
> + cmp = rem;
> + hba->nr_queues[HCTX_TYPE_DEFAULT] = min3(cmp, rw_queues,
> + num_possible_cpus());
> + rem -= hba->nr_queues[HCTX_TYPE_DEFAULT];
> + cmp = rem;
> + hba->nr_queues[HCTX_TYPE_POLL] = min(cmp, poll_queues);
> + rem -= hba->nr_queues[HCTX_TYPE_POLL];
> + cmp = rem;
> + hba->nr_queues[HCTX_TYPE_READ] = min(cmp, read_queues);
> +
> + for (i = 0; i < HCTX_MAX_TYPES; i++)
> + host->nr_hw_queues += hba->nr_queues[i];
> +
> + hba->nr_hw_queues = host->nr_hw_queues + dev_cmd_queue;
> + return 0;
> +}

Please consider removing the variable 'cmp' and instead use min_t() or a
type cast.

Thanks,

Bart.