Re: [PATCH v6 2/2] scsi: ufs: Do not rely on prefetched data

From: Martin K. Petersen
Date: Thu Mar 26 2020 - 23:00:55 EST



Can,

> We were setting bActiveICCLevel attribute for UFS device only once but
> type of this attribute has changed from persistent to volatile since
> UFS device specification v2.1. This attribute is set to the default
> value after power cycle or hardware reset event. It isn't safe to rely
> on prefetched data (only used for bActiveICCLevel attribute
> now). Hence this change removes the code related to data prefetching
> and set this parameter on every attempt to probe the UFS device.

Applied patch #2 to 5.7/scsi-queue. Awaiting Avri's feedback on patch
#1. Thanks!

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Martin K. Petersen Oracle Linux Engineering