Re: [PATCH] scsi: libsas: fix ata xfer length

[Martin K. Petersen]

John Garry <john.garry@xxxxxxxxxx> writes:

John,

> The total ata xfer length may not be calculated properly,
> in that we do not use the proper method to get an sg element
> dma length.
>
> According to the code comment, sg_dma_len() should be used
> after dma_map_sg() is called.
>
> This issue was found by turning on the SMMUv3 in front of
> the hisi_sas controller in hip07. Multiple sg elements
> were being combined into a single element, but the original
> first element length was being use as the total xfer length.

Applied to 4.11/scsi-fixes.

-- 
Martin K. Petersen	Oracle Linux Engineering