linux-ide.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Damien Le Moal <Damien.LeMoal@wdc.com>
To: Hannes Reinecke <hare@suse.de>, Jens Axboe <axboe@kernel.dk>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>
Cc: Sathya Prakash <sathya.prakash@broadcom.com>,
	Sreekanth Reddy <sreekanth.reddy@broadcom.com>,
	Suganath Prabu Subramani  <suganath-prabu.subramani@broadcom.com>
Subject: Re: [PATCH v2 4/9] libata: cleanup ata_dev_configure()
Date: Fri, 6 Aug 2021 09:32:15 +0000	[thread overview]
Message-ID: <DM6PR04MB7081B75EE5507E4FEF9F94CDE7F39@DM6PR04MB7081.namprd04.prod.outlook.com> (raw)
In-Reply-To: <0fd18f2f-dc71-9d57-cfb3-afca4b37b3e9@suse.de>

On 2021/08/06 18:28, Hannes Reinecke wrote:
> On 8/6/21 11:12 AM, Damien Le Moal wrote:
>> On 2021/08/06 18:07, Hannes Reinecke wrote:
>>> On 8/6/21 9:42 AM, Damien Le Moal wrote:
>>>> Introduce the helper functions ata_dev_config_lba() and
>>>> ata_dev_config_chs() to configure the addressing capabilities of a
>>>> device. Each helper takes a string as argument for the addressing
>>>> information printed after these helpers execution completes.
>>>>
>>>> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
>>>> ---
>>>>  drivers/ata/libata-core.c | 110 ++++++++++++++++++++------------------
>>>>  1 file changed, 59 insertions(+), 51 deletions(-)
>>>>
>>>> diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
>>>> index b13194432e5a..2b6054cdd8fc 100644
>>>> --- a/drivers/ata/libata-core.c
>>>> +++ b/drivers/ata/libata-core.c
> [ .. ]
>>>>  				return rc;
>>>> -
>>>> -			/* print device info to dmesg */
>>>> -			if (ata_msg_drv(ap) && print_info) {
>>>> -				ata_dev_info(dev, "%s: %s, %s, max %s\n",
>>>> -					     revbuf, modelbuf, fwrevbuf,
>>>> -					     ata_mode_string(xfer_mask));
>>>> -				ata_dev_info(dev,
>>>> -					     "%llu sectors, multi %u: %s %s\n",
>>>> -					(unsigned long long)dev->n_sectors,
>>>> -					dev->multi_count, lba_desc, ncq_desc);
>>>> -			}
>>>>  		} else {
>>>> -			/* CHS */
>>>> -
>>>> -			/* Default translation */
>>>> -			dev->cylinders	= id[1];
>>>> -			dev->heads	= id[3];
>>>> -			dev->sectors	= id[6];
>>>> -
>>>> -			if (ata_id_current_chs_valid(id)) {
>>>> -				/* Current CHS translation is valid. */
>>>> -				dev->cylinders = id[54];
>>>> -				dev->heads     = id[55];
>>>> -				dev->sectors   = id[56];
>>>> -			}
>>>> +			ata_dev_config_chs(dev, lba_info, sizeof(lba_info));
>>>> +		}
>>>>  
>>>> -			/* print device info to dmesg */
>>>> -			if (ata_msg_drv(ap) && print_info) {
>>>> -				ata_dev_info(dev, "%s: %s, %s, max %s\n",
>>>> -					     revbuf,	modelbuf, fwrevbuf,
>>>> -					     ata_mode_string(xfer_mask));
>>>> -				ata_dev_info(dev,
>>>> -					     "%llu sectors, multi %u, CHS %u/%u/%u\n",
>>>> -					     (unsigned long long)dev->n_sectors,
>>>> -					     dev->multi_count, dev->cylinders,
>>>> -					     dev->heads, dev->sectors);
>>>> -			}
>>>> +		/* print device info to dmesg */
>>>> +		if (ata_msg_drv(ap) && print_info) {
>>>> +			ata_dev_info(dev, "%s: %s, %s, max %s\n",
>>>> +				     revbuf, modelbuf, fwrevbuf,
>>>> +				     ata_mode_string(xfer_mask));
>>>> +			ata_dev_info(dev,
>>>> +				     "%llu sectors, multi %u, %s\n",
>>>> +				     (unsigned long long)dev->n_sectors,
>>>> +				     dev->multi_count, lba_info);
>>>>  		}
>>>>  
>>>>  		ata_dev_config_devslp(dev);
>>>>
>>> Hmm. Can't say I like it.
>>> Can't you move the second 'ata_dev_info()' call into the respective
>>> functions, and kill the temporary buffer?
>>
>> That would reverse the order of the messages... And I wanted to avoid having an
>> "if (ata_id_has_lba(id))" again just for the print. Moving the 2 ata_dev_info()
>> calls into the respective functions was the other solution I tried, but then the
>> functions require *a lot* more arguments (revbuf, modelbuf, fwrevbuf, ...) wich
>> was not super nice.
>>
>> This one is the least ugly I thought... Any other idea ?
>>
> Well, it should be possible to move the first 'ata_dev_info()' call
> _prior_ to the if(ata_id_has_lba(id)) condition, and then we can move
> the second call into the respective functions, no?

Indeed, it looks like that would work. Let me try that.

> 
> Cheers,
> 
> Hannes
> 


-- 
Damien Le Moal
Western Digital Research

  reply	other threads:[~2021-08-06  9:32 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-06  7:42 [PATCH v2 0/9] libata cleanups and improvements Damien Le Moal
2021-08-06  7:42 ` [PATCH v2 1/9] libata: fix ata_host_alloc_pinfo() Damien Le Moal
2021-08-06  8:49   ` Hannes Reinecke
2021-08-06 14:25   ` James Bottomley
2021-08-06 14:31     ` Damien Le Moal
2021-08-06  7:42 ` [PATCH v2 2/9] libata: fix ata_host_start() Damien Le Moal
2021-08-06  8:50   ` Hannes Reinecke
2021-08-06 14:31   ` James Bottomley
2021-08-06 14:33     ` Damien Le Moal
2021-08-07  3:32     ` Damien Le Moal
2021-08-06  7:42 ` [PATCH v2 3/9] libata: cleanup device sleep capability detection Damien Le Moal
2021-08-06  8:50   ` Hannes Reinecke
2021-08-06  7:42 ` [PATCH v2 4/9] libata: cleanup ata_dev_configure() Damien Le Moal
2021-08-06  9:07   ` Hannes Reinecke
2021-08-06  9:12     ` Damien Le Moal
2021-08-06  9:28       ` Hannes Reinecke
2021-08-06  9:32         ` Damien Le Moal [this message]
2021-08-06  7:42 ` [PATCH v2 5/9] libata: cleanup NCQ priority handling Damien Le Moal
2021-08-06  9:09   ` Hannes Reinecke
2021-08-06  7:42 ` [PATCH v2 6/9] libata: fix ata_read_log_page() warning Damien Le Moal
2021-08-06  9:10   ` Hannes Reinecke
2021-08-06  7:42 ` [PATCH v2 7/9] libata: print feature list on device scan Damien Le Moal
2021-08-06  9:11   ` Hannes Reinecke
2021-08-06  7:42 ` [PATCH v2 8/9] libahci: Introduce ncq_prio_supported sysfs sttribute Damien Le Moal
2021-08-06  7:42 ` [PATCH v2 9/9] scsi: mpt3sas: Introduce sas_ncq_prio_supported " Damien Le Moal
2021-08-06  9:12   ` Hannes Reinecke
2021-08-06  9:16     ` Damien Le Moal

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=DM6PR04MB7081B75EE5507E4FEF9F94CDE7F39@DM6PR04MB7081.namprd04.prod.outlook.com \
    --to=damien.lemoal@wdc.com \
    --cc=axboe@kernel.dk \
    --cc=hare@suse.de \
    --cc=linux-block@vger.kernel.org \
    --cc=linux-ide@vger.kernel.org \
    --cc=linux-scsi@vger.kernel.org \
    --cc=martin.petersen@oracle.com \
    --cc=sathya.prakash@broadcom.com \
    --cc=sreekanth.reddy@broadcom.com \
    --cc=suganath-prabu.subramani@broadcom.com \
    --subject='Re: [PATCH v2 4/9] libata: cleanup ata_dev_configure()' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).