linux-kernel - Re: [PATCH v1 3/3] scsi: ufs: Use UPIU query trace in devman_upiu

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Message-ID: <3fc41b0ed354d1a680fb5fbc41a0e09ab847dd32.camel@gmail.com>
Date:   Tue, 25 May 2021 22:04:06 +0200
From:   Bean Huo <huobean@...il.com>
To:     Bart Van Assche <bvanassche@....org>, alim.akhtar@...sung.com,
        avri.altman@....com, asutoshd@...eaurora.org, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, stanley.chu@...iatek.com,
        beanhuo@...ron.com, tomas.winkler@...el.com, cang@...eaurora.org
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 3/3] scsi: ufs: Use UPIU query trace in
 devman_upiu_cmd

On Sun, 2021-05-23 at 18:32 -0700, Bart Van Assche wrote:
> On 5/23/21 2:14 PM, Bean Huo wrote:
> 
> > +     ufshcd_add_query_upiu_trace(hba, err ? UFS_QUERY_ERR :
> > UFS_QUERY_COMP,
> > +                                 (struct utp_upiu_req *)lrbp-
> > >ucd_rsp_ptr);
> 
> 
> Why is there a cast in the above code from a response pointer to a
> 
> request pointer type?
> 
> 

Ok, I think it is the same question as one in patch 1/3.

> 
> Thanks,
> 
> 
> 
> Bart.