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From: Hannes Reinecke <hare@suse.de>
To: Damien Le Moal <damien.lemoal@wdc.com>,
	Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org, linux-ide@vger.kernel.org,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	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 6/9] libata: fix ata_read_log_page() warning
Date: Fri, 6 Aug 2021 11:10:32 +0200	[thread overview]
Message-ID: <ab5da412-6576-3fa7-257b-c92103b7033c@suse.de> (raw)
In-Reply-To: <20210806074252.398482-7-damien.lemoal@wdc.com>

On 8/6/21 9:42 AM, Damien Le Moal wrote:
> Support for the READ LOG PAGE DMA EXT command is indicated by words 119
> and 120 of a device identify data. This is tested in
> ata_read_log_page() with ata_id_has_read_log_dma_ext() and the
> READ LOG PAGE DMA command used if the device reports supports for it.
> 
> However, some devices lie about this support and using the DMA version
> of the command fails, generating the warning message "READ LOG DMA EXT
> failed, trying PIO". Since READ LOG PAGE DMA EXT is an optional command,
> this warning is not at all important but may be scary for the user.
> Change ata_read_log_page() to suppres this warning and to print an
> error message if both DMA and PIO attempts failed.
> 
> With this change, there is no need to print again an error message when
> ata_read_log_page() returns an error. So simplify the users of this
> function.
> 
> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
> ---
>  drivers/ata/libata-core.c | 47 +++++++++++----------------------------
>  1 file changed, 13 insertions(+), 34 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		           Kernel Storage Architect
hare@suse.de			                  +49 911 74053 688
SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), GF: Felix Imendörffer

  reply	other threads:[~2021-08-06  9:10 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
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 [this message]
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

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