RE: [PATCH V4 09/17] scsi: ufs: manually add well known logical units

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Thanks Chris. Agreed with all your suggestion, next revision will address
your comments.

-----Original Message-----
From: linux-scsi-owner@xxxxxxxxxxxxxxx
[mailto:linux-scsi-owner@xxxxxxxxxxxxxxx] On Behalf Of Dolev Raviv
Sent: Tuesday, September 23, 2014 4:49 AM
To: Christoph Hellwig
Cc: Dolev Raviv; james.bottomley@xxxxxxxxxxxxxxxxxxxxx; hch@xxxxxxxxxxxxx;
linux-scsi@xxxxxxxxxxxxxxx; linux-scsi-owner@xxxxxxxxxxxxxxx;
linux-arm-msm@xxxxxxxxxxxxxxx; santoshsy@xxxxxxxxx; Subhash Jadavani
Subject: Re: [PATCH V4 09/17] scsi: ufs: manually add well known logical
units


> None of the REPORT LUNS language makes sense as we're not using it.
>
> Can you respon the patch with a better description, and a little 
> comment in the code on why you're adding these wluns.

ok.

>
> Also can I assume none of the later patches relies on their existance?

In UFS power management commands such as SSU, are sent to "device w- lun".
Leaving it out should only affect the ability to suspend the device.
Other patches are not directly affected by it.

> If you do you need to check the error return from scsi_add_device, if 
> not said comment should mention why it's fine to not actually find any 
> of these.
>

Will discus it further with Subhash.

> Also if you do use one of them from kernel space later it might make 
> more sense to use __scsi_add_device and store a pointer to the 
> scsi_device instead of looking it up later.
>

I'll review all you suggestions with Subhash.


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