linux-kernel - Re: [PATCH v2 1/2] scsi: ufs: Abort tasks before clear them from doorbell

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Date:   Fri, 11 Sep 2020 02:16:54 +0000
From:   Can Guo <cang@...eaurora.org>
To:     James Bottomley <James.Bottomley@...senpartnership.com>
Cc:     Stanley Chu <stanley.chu@...iatek.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        asutoshd@...eaurora.org, nguyenb@...eaurora.org,
        hongwus@...eaurora.org, ziqichen@...eaurora.org,
        rnayak@...eaurora.org, linux-scsi@...r.kernel.org,
        kernel-team@...roid.com, saravanak@...gle.com, salyzyn@...gle.com,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Bean Huo <beanhuo@...ron.com>,
        Bart Van Assche <bvanassche@....org>,
        open list <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH v2 1/2] scsi: ufs: Abort tasks before clear them from
 doorbell

Hi James and Stanley,

On 2020-09-11 00:09, James Bottomley wrote:
> On Thu, 2020-09-10 at 16:18 +0800, Stanley Chu wrote:
> [...]
>> > + 	if (!err) {
>> >  +cleanup:
>> 
>> Yeah, considering Bean Huo's patch "scsi: ufs: No need to send Abort
>> Task if the task in DB was cleared", "cleanup" label shall be added
>> back here.
>> 
>> So your resolution looks good to me.
>> 
>> Thanks so much : )
> 
> You're welcome ... but just remember I have to explain this to Linus
> when the merge window opens.  It would be a lot easier if this hadn't
> happened so please don't make it any worse ...
> 
> James

Sorry that my changes got you confused and thank you for help resolve 
the
conflicts. My change ("scsi: ufs: Abort tasks before clearing them from
doorbell") is to serve my fixes to ufs error recovery which only got 
picked
up on scsi-queue-5.10. So I checked out to scsi-queue-5.10 and made my
changes on the tip of scsi-queue-5.10, below 2 changes were not even
present in scsi-queue-5.10 back that time.

scsi: ufs: Clean up completed request without interrupt notification
scsi: ufs: No need to send Abort Task if the task in DB was cleared

Is there anything wrong with my work flow above? Please let me know the
right process so that I can avoid such conflicts in my next changes, 
which
also touch the func ufshcd_abort(). Thanks!

Regards,

Can Guo.