On Sun, 29 Jan 2017 01:12:18 -0800
"Christoph Hellwig" <hch@xxxxxx> wrote:
> Remove a piece of code in storvsc_queuecommand that tries to pass the
> physical address of the kernel struct scatterlist pointer to the host.
>
> Fortunately the code can't ever be reached anyway.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
> drivers/scsi/storvsc_drv.c | 7 -------
> 1 file changed, 7 deletions(-)
>
> diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
> index 05526b7..62f4545 100644
> --- a/drivers/scsi/storvsc_drv.c
> +++ b/drivers/scsi/storvsc_drv.c
> @@ -1511,13 +1511,6 @@ static int storvsc_queuecommand(struct Scsi_Host
> *host, struct scsi_cmnd *scmnd)
> page_to_pfn(sg_page((cur_sgl)));
> cur_sgl = sg_next(cur_sgl);
> }
> -
> - } else if (scsi_sglist(scmnd)) {
> - payload->range.len = length;
> - payload->range.offset =
> - virt_to_phys(scsi_sglist(scmnd)) & (PAGE_SIZE-1);
> - payload->range.pfn_array[0] =
> - virt_to_phys(scsi_sglist(scmnd)) >> PAGE_SHIFT;
> }
>
> cmd_request->payload = payload;
Looks like something that has been around from first versions of hyper-v support.
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