linux-kernel - RE: [PATCH v1 2/3] scsi: ufs: Let command trace only for the cmd != null case

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Message-ID: <DM6PR04MB6575C932FD523BD50E99EEA9FC269@DM6PR04MB6575.namprd04.prod.outlook.com>
Date:   Mon, 24 May 2021 06:50:50 +0000
From:   Avri Altman <Avri.Altman@....com>
To:     Bart Van Assche <bvanassche@....org>, Bean Huo <huobean@...il.com>,
        "alim.akhtar@...sung.com" <alim.akhtar@...sung.com>,
        "asutoshd@...eaurora.org" <asutoshd@...eaurora.org>,
        "jejb@...ux.ibm.com" <jejb@...ux.ibm.com>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "stanley.chu@...iatek.com" <stanley.chu@...iatek.com>,
        "beanhuo@...ron.com" <beanhuo@...ron.com>,
        "tomas.winkler@...el.com" <tomas.winkler@...el.com>,
        "cang@...eaurora.org" <cang@...eaurora.org>
CC:     "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v1 2/3] scsi: ufs: Let command trace only for the cmd !=
 null case

> 
> Why are READ_16 and WRITE_16 ignored?
For practical reasons - u32 is large enough to carry addresses for all foreseen devices.
So READ16 is practically not used in ufs, although per spec it is supported.