linux-kernel - Re: [PATCH v4] ahci: move ahci_sb600_softreset to libahci.c and rename it

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Date:	Mon, 20 Jun 2011 18:06:52 +0800
From:	Yuan-Hsin Chen <yuanlmm@...il.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	jgarzik@...ox.com, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org, sshtylyov@...sta.com,
	Yuan-Hsin Chen <yhchen@...aday-tech.com>
Subject: Re: [PATCH v4] ahci: move ahci_sb600_softreset to libahci.c and
 rename it

Hello.

On Mon, Jun 20, 2011 at 4:19 PM, Tejun Heo <tj@...nel.org> wrote:
> Hello, Yuan.
>
> Yeap, almost there, just few very minor things. :)
>
> On Mon, Jun 20, 2011 at 04:06:41PM +0800, Yuan-Hsin Chen wrote:
>>  static struct ata_port_operations ahci_sb600_ops = {
>>       .inherits               = &ahci_ops,
>> -     .softreset              = ahci_sb600_softreset,
>> -     .pmp_softreset          = ahci_sb600_softreset,
>> +     .softreset              = ahci_pmp_retry_srst_softreset,
>>  };
>
> Why doesn't sb600 just use ahci_pmp_retry_srst_ops?
>
>> @@ -312,6 +312,7 @@ extern struct device_attribute *ahci_sdev_attrs[];
>>       .sdev_attrs             = ahci_sdev_attrs
>>
>>  extern struct ata_port_operations ahci_ops;
>> +extern struct ata_port_operations ahci_pmp_retry_srst_ops;
>
> Heh, I know I suggested that name but that is one ugly name.  If
> anyone has any better idea, please come forward.

How about ahci_pmp_workaround_softreset or ahci_pmp_ipms_set_softreset?
Also applys to ops, ahci_pmp_workaround_ops or ahci_pmp_ipms_set_ops.

>
>> @@ -82,6 +82,8 @@ static void ahci_pmp_attach(struct ata_port *ap);
>>  static void ahci_pmp_detach(struct ata_port *ap);
>>  static int ahci_softreset(struct ata_link *link, unsigned int *class,
>>                         unsigned long deadline);
>> +static int ahci_pmp_retry_srst_softreset(struct ata_link *link, unsigned int *class,
>> +                       unsigned long deadline);
>
> srst equals softreset, so ahci_pmp_retry_softreset() should do.
>
>> +struct ata_port_operations ahci_pmp_retry_srst_ops = {
>> +     .inherits               = &ahci_ops,
>> +     .softreset              = ahci_pmp_retry_srst_softreset,
>> +};
>> +EXPORT_SYMBOL_GPL(ahci_pmp_retry_srst_ops);
>> +
>>  struct ata_port_operations ahci_ops = {
>>       .inherits               = &sata_pmp_port_ops,
>
> Maybe it's better to place ahci_pmp_retry_srst_ops after ahci_ops?
>
>> +static int ahci_pmp_check_ready(struct ata_link *link)
>
> It would be better if the name reflects that it's not for specific
> workaround.
>
> Thank you.
>
> --
> tejun
>
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