> + * Internal error: TPGS supported by no
> + * device identifcation found.
> + * Disable ALUA support.
s/by/but/
Also I think the comment could fit into two lines if you try :)
> + spin_lock(&port_group_lock);
> + list_for_each_entry(tmp_pg, &port_group_list, node) {
> + if (tmp_pg->group_id != group_id)
> + continue;
> + if (tmp_pg->device_id_size != device_id_size)
> + continue;
> + if (strncmp(tmp_pg->device_id_str, device_id_str,
> + device_id_size))
> + continue;
> + h->pg = tmp_pg;
> + kref_get(&tmp_pg->kref);
> + break;
> + }
> + spin_unlock(&port_group_lock);
This exact code appears twice in this patch, please factor it into
a helper.
> + if (device_id_size)
> + strncpy(pg->device_id_str, device_id_str, 256);
> + else
> + pg->device_id_str[0] = '\0';
> +
How could we end up with a zero device ID length? Shouldn't
have error out earlier on that?
> + * Re-check list again to catch
> + * concurrent updates
> + */
Could fit onto one line..
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