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Date:   Wed, 9 Nov 2022 04:34:58 -0800
From:   Christoph Hellwig <hch@infradead.org>
To:     Bart Van Assche <bvanassche@acm.org>
Cc:     "Martin K . Petersen" <martin.petersen@oracle.com>,
        Jaegeuk Kim <jaegeuk@kernel.org>, linux-scsi@vger.kernel.org,
        Adrian Hunter <adrian.hunter@intel.com>,
        Eric Biggers <ebiggers@google.com>,
        "James E.J. Bottomley" <jejb@linux.ibm.com>,
        Bean Huo <beanhuo@micron.com>,
        Avri Altman <avri.altman@wdc.com>,
        Jinyoung Choi <j-young.choi@samsung.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
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        Stanley Chu <stanley.chu@mediatek.com>,
        Keoseong Park <keosung.park@samsung.com>,
        Kiwoong Kim <kwmad.kim@samsung.com>
Subject: Re: [PATCH v3 5/5] scsi: ufs: Allow UFS host drivers to override the
 sg entry size
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References: <20221108233339.412808-1-bvanassche@acm.org>
 <20221108233339.412808-6-bvanassche@acm.org>
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On Tue, Nov 08, 2022 at 03:33:39PM -0800, Bart Van Assche wrote:
> From: Eric Biggers <ebiggers@google.com>
> 
> Modify the UFSHCD core to allow 'struct ufshcd_sg_entry' to be
> variable-length. The default is the standard length, but variants can
> override ufs_hba::sg_entry_size with a larger value if there are
> vendor-specific fields following the standard ones.

There is absolutely nothing 'vendor' in here, it is all implementation
specifc.  I have no idea why no touching ufs can grasp this.