linux-kernel - Re: [PATCH v2] UFS: Date Segment only need for WRITE DESCRIPTOR

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Date:   Wed, 28 Sep 2016 01:14:18 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     subhashj@...eaurora.org
Cc:     Zang Leigang <zangleigang@...ilicon.com>, vinholikatti@...il.com,
        jejb@...ux.vnet.ibm.com, martin.petersen@...cle.com,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-scsi-owner@...r.kernel.org
Subject: Re: [PATCH v2] UFS: Date Segment only need for WRITE DESCRIPTOR

>>>>> "Subhash" == subhashj  <subhashj@...eaurora.org> writes:

Subhash> Looks good to me.

> -	/* Data segment length */
> -	ucd_req_ptr->header.dword_2 = UPIU_HEADER_DWORD(
> -			0, 0, len >> 8, (u8)len);
> +	/* Data segment length only need for WRITE_DESC */
> +	if (query->request.upiu_req.opcode == UPIU_QUERY_OPCODE_WRITE_DESC)
> +		ucd_req_ptr->header.dword_2 =
> +			UPIU_HEADER_DWORD(0, 0, (len >> 8), (u8)len);
> +	else
> +		ucd_req_ptr->header.dword_2 = 0;

What about READ_DESC?

-- 
Martin K. Petersen	Oracle Linux Engineering