linux-kernel - Re: [PATCH RFC v2 07/18] libata-scsi: Add ata_internal

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Date:   Mon, 13 Jun 2022 10:44:29 +0100
From:   John Garry <john.garry@...wei.com>
To:     Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        <axboe@...nel.dk>, <jejb@...ux.ibm.com>,
        <martin.petersen@...cle.com>, <brking@...ibm.com>, <hare@...e.de>,
        <hch@....de>
CC:     <linux-block@...r.kernel.org>, <linux-ide@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-scsi@...r.kernel.org>,
        <chenxiang66@...ilicon.com>
Subject: Re: [PATCH RFC v2 07/18] libata-scsi: Add ata_internal_queuecommand()

On 13/06/2022 08:16, Damien Le Moal wrote:
>> diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
>> index baac35dd17ca..b2702ab0183b 100644
>> --- a/drivers/ata/libata-scsi.c
>> +++ b/drivers/ata/libata-scsi.c
>> @@ -1114,6 +1114,20 @@ int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev)
>>   	return 0;
>>   }
>>   
>> +int ata_internal_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
> ata_scsi_internal_queuecommand()

ok

> 
> But given that this is used for the .reserved_queuecommand() method, I
> would call it ata_scsi_reserved_queuecommand().

I did mention somewhere that I continued to use the term "internal" as 
that is what libata already uses, but I can change it.

> 
>> +{
>> +	struct ata_port *ap;
>> +	int res;
>> +
>> +	ap = ata_shost_to_port(shost);
> You can move this to ap declaration.
> 
> 	struct ata_port *ap = ata_shost_to_port(shost);

ok

> 
>> +	spin_lock_irq(ap->lock);
> spin_lock_irqsave() ?

Right

> 
>> +	res = ata_sas_queuecmd(scmd, ap);
>> +	spin_unlock_irq(ap->lock);
>> +
>> +	return res;

Thanks,
John