Re: [PATCH v3 2/2] libata-scsi: better style in ata_msense_caching()

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On Wed, Jul 13, 2016 at 12:20:40AM +0800, Tom Yan wrote:
> First of all "changeable" is the "version" of mode page requested by
> the user, while ata_id_*_enabled(id) are the value of setting reported
> by the device. I think it's ugly and confusing to check values of
> totally different nature "together".
> 
> The worse thing is, since we have implemented MODE SELECT /
> ata_mselect_caching() to serve exclusively the write cache feature,
> the difference in the two if-conditions made the code look even more
> arcane.
> 
> In my version, it is clear that when the user request the changeable
> mode page, the value for the WCE bit will always be "1" / "y", since
> we've made (only) it changeable in ata_mselect_caching(); and when the
> user request the current / default page, the values reflect the
> settings from the drive.

Can you please put the rationale in the patch description and repost?

Thanks.

-- 
tejun
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