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Date:      Thu, 13 Nov 2014 20:16:05 +0200
From:      Alexander Motin <mav@FreeBSD.org>
To:        NGie Cooper <yaneurabeya@gmail.com>, "Rang, Anton" <anton.rang@isilon.com>
Cc:        Scott Long <scottl@netflix.com>, "freebsd-current@freebsd.org" <freebsd-current@freebsd.org>, "Kenneth D. Merry" <ken@freebsd.org>
Subject:   Re: Minor bug in SCSI definition
Message-ID:  <5464F565.1070105@FreeBSD.org>
In-Reply-To: <CAGHfRMA6QQV8wLiCcyhwhyMJ1pjTKr3MVB1-%2B=YKqMyxrUhwAg@mail.gmail.com>
References:  <F21EDC44C64DB34B90AF485AC3CEDD4B3548AFDD@MX104CL01.corp.emc.com> <CAGHfRMA6QQV8wLiCcyhwhyMJ1pjTKr3MVB1-%2B=YKqMyxrUhwAg@mail.gmail.com>

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On 13.11.2014 05:44, NGie Cooper wrote:
> On Wed, Nov 12, 2014 at 7:30 PM, Rang, Anton <anton.rang@isilon.com> wrote:
>> Coverity found an issue in this area which I tracked down to the incorrect definition patched below.
>>
>> The SID_QUAL macro is (((inq_data)->device & 0xE0) >> 5) which extracts the peripheral qualifier.
>> Per SCSI-2 (draft 10L) table 46, the vendor-specific values are "1XXb".
>>
>> This probably affects almost nobody, but it will clear up a couple of Coverity warnings.
>>
>> Anton
>>
>> Index: sys/cam/scsi/scsi_all.h
>> ===================================================================
>> --- sys/cam/scsi/scsi_all.h     (revision 274352)
>> +++ sys/cam/scsi/scsi_all.h  (working copy)
>> @@ -1817,7 +1817,7 @@
>>                                                             * reserved for this peripheral
>>                                                             * qualifier.
>>                                                             */
>> -#define          SID_QUAL_IS_VENDOR_UNIQUE(inq_data) ((SID_QUAL(inq_data) & 0x08) != 0)
>> +#define         SID_QUAL_IS_VENDOR_UNIQUE(inq_data) ((SID_QUAL(inq_data) & 0x04) != 0)
>>            u_int8_t dev_qual2;
>> #define          SID_QUAL2  0x7F
>> #define          SID_LU_CONG        0x40
> 
> CCing ken@/mav@/scottl@ -- thanks!

Looks good to me. Committed it to head at r274477. Thank you!

-- 
Alexander Motin



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