linux-kernel - Re: [PATCH v3 4/7] libata: detech Device Attention support

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Message-ID: <4F744412.4090806@mvista.com>
Date:	Thu, 29 Mar 2012 15:14:26 +0400
From:	Sergei Shtylyov <sshtylyov@...sta.com>
To:	Lin Ming <ming.m.lin@...el.com>
CC:	Zhang Rui <rui.zhang@...el.com>, Jeff Garzik <jgarzik@...ox.com>,
	Alan Stern <stern@...land.harvard.edu>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Tejun Heo <tj@...nel.org>,
	Aaron Lu <aaron.lu@....com>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, linux-scsi@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-acpi <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH v3 4/7] libata: detech Device Attention support

Hello.

On 29-03-2012 9:06, Lin Ming wrote:

>>> Add a new flag ATA_DFLAG_DA to indicate that device supports "Device
>>> Attention".

>>> Acked-by: Aaron Lu<aaron.lu@....com>
>>> Signed-off-by: Lin Ming<ming.m.lin@...el.com>
>> [...]

>>> diff --git a/include/linux/ata.h b/include/linux/ata.h
>>> index 32df2b6..6ee41cc 100644
>>> --- a/include/linux/ata.h
>>> +++ b/include/linux/ata.h
>>> @@ -578,6 +578,7 @@ static inline int ata_is_data(u8 prot)
>>>    	  ((u64) (id)[(n) + 0]) )
>>>
>>>    #define ata_id_cdb_intr(id)	(((id)[ATA_ID_CONFIG]&   0x60) == 0x20)
>>> +#define atapi_id_has_da(id)	((id)[77]&   (1<<   4))

>>      We prefix these macros with 'ata_' despite them being applied to IDENTIFY
>> DEVICE data or IDENTIFY PAKCET DEVICE data. ata_id_cdb_intr(), for example,
>> applies only to IDENTIFY PAKCET DEVICE data.

> OK, will change it.

    Also, what does the word "detech" mean in the subject?

MBR, Sergei
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