linux-kernel - Re: [PATCH v4 1/2] ahci: Rename flag `ATA_LFLAG_NO_DB_DELAY` to `ATA_LFLAG_NO_DEBOUNCE

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Date:   Thu, 6 Jan 2022 08:35:12 +0100
From:   Paul Menzel <pmenzel@...gen.mpg.de>
To:     Damien Le Moal <damien.lemoal@...nsource.wdc.com>
Cc:     linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/2] ahci: Rename flag `ATA_LFLAG_NO_DB_DELAY` to
 `ATA_LFLAG_NO_DEBOUNCE_DELAY`

Dear Damien,


Am 06.01.22 um 03:52 schrieb Damien Le Moal:
> On 1/6/22 00:36, Paul Menzel wrote:
>> The new name is longer, but clearer.
> 
> It looks like you sent an incremental change on top of your previous
> patches. Please send a cleaned up series. One patch to introduce the
> ATA_LFLAG_NO_DEBOUNCE_DELAY flag & msleep bypass and another to add the
> AMD chipset.
> 
> The commit message of this version patch 2 should be the explanation for
> the ATA_LFLAG_NO_DEBOUNCE_DELAY flag, not for adding a new chipset ID.

Sorry, but I think you misread the patch. The flag 
`ATA_LFLAG_NO_DB_DELAY` exists since commit e39b2bb3b7 (libata: skip 
debounce delay on link resume).


Kind regards,

Paul


>> Signed-off-by: Paul Menzel <pmenzel@...gen.mpg.de>
>> ---
>>   drivers/ata/ahci_brcm.c   | 2 +-
>>   drivers/ata/libata-sata.c | 2 +-
>>   include/linux/libata.h    | 2 +-
>>   3 files changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/ata/ahci_brcm.c b/drivers/ata/ahci_brcm.c
>> index 6e9c5ade4c2ea..649815c196ed0 100644
>> --- a/drivers/ata/ahci_brcm.c
>> +++ b/drivers/ata/ahci_brcm.c
>> @@ -333,7 +333,7 @@ static struct ata_port_operations ahci_brcm_platform_ops = {
>>   
>>   static const struct ata_port_info ahci_brcm_port_info = {
>>   	.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
>> -	.link_flags	= ATA_LFLAG_NO_DB_DELAY,
>> +	.link_flags	= ATA_LFLAG_NO_DEBOUNCE_DELAY,
>>   	.pio_mask	= ATA_PIO4,
>>   	.udma_mask	= ATA_UDMA6,
>>   	.port_ops	= &ahci_brcm_platform_ops,
>> diff --git a/drivers/ata/libata-sata.c b/drivers/ata/libata-sata.c
>> index b9c77885b8726..67b2e7cf3cc4e 100644
>> --- a/drivers/ata/libata-sata.c
>> +++ b/drivers/ata/libata-sata.c
>> @@ -317,7 +317,7 @@ int sata_link_resume(struct ata_link *link, const unsigned long *params,
>>   		 * immediately after resuming.  Delay 200ms before
>>   		 * debouncing.
>>   		 */
>> -		if (!(link->flags & ATA_LFLAG_NO_DB_DELAY))
>> +		if (!(link->flags & ATA_LFLAG_NO_DEBOUNCE_DELAY))
>>   			ata_msleep(link->ap, 200);
>>   
>>   		/* is SControl restored correctly? */
>> diff --git a/include/linux/libata.h b/include/linux/libata.h
>> index 2a8404b26083c..15802e644962d 100644
>> --- a/include/linux/libata.h
>> +++ b/include/linux/libata.h
>> @@ -191,7 +191,7 @@ enum {
>>   	ATA_LFLAG_NO_LPM	= (1 << 8), /* disable LPM on this link */
>>   	ATA_LFLAG_RST_ONCE	= (1 << 9), /* limit recovery to one reset */
>>   	ATA_LFLAG_CHANGED	= (1 << 10), /* LPM state changed on this link */
>> -	ATA_LFLAG_NO_DB_DELAY	= (1 << 11), /* no debounce delay on link resume */
>> +	ATA_LFLAG_NO_DEBOUNCE_DELAY = (1 << 11), /* no debounce delay on link resume */
>>   
>>   	/* struct ata_port flags */
>>   	ATA_FLAG_SLAVE_POSS	= (1 << 0), /* host supports slave dev */
> 
>