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

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Message-ID: <77ce7860-4857-a4e4-e7b3-08f56312cf87@opensource.wdc.com>
Date:   Wed, 12 Jan 2022 18:49:10 +0900
From:   Damien Le Moal <damien.lemoal@...nsource.wdc.com>
To:     Paul Menzel <pmenzel@...gen.mpg.de>
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`

On 1/6/22 00:36, Paul Menzel wrote:
> The new name is longer, but clearer.
> 
> 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 */

I applied both patches to for-5.17 (sorry, I am late, this fell through
the cracks...).

I simplified the commit messages though, especially patch 2, since the
main point of that patch is to introduce support for a new controller
rather than discussing the debounce delay thingy.

If you are OK with it, I will reuse your well written commit message for
a patch removing the debounce delay though :) Working on it now, I will
post something by week end after testing.


-- 
Damien Le Moal
Western Digital Research