Re: [PATCH 10/22] staging: unisys: visorbus: Make use of the new sg_map helper function

[Logan Gunthorpe]

Great, thanks!

Logan

On 14/04/17 10:07 AM, Kershner, David A wrote:
> Can you add Acked-by for this patch? 
> 
> Acked-by: David Kershner <david.kershner@xxxxxxxxxx>
> 
> Tested on s-Par and no problems. 
> 
> Thanks,
> David Kershner
> 
>> ---
>>  drivers/staging/unisys/visorhba/visorhba_main.c | 12 +++++++-----
>>  1 file changed, 7 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/staging/unisys/visorhba/visorhba_main.c
>> b/drivers/staging/unisys/visorhba/visorhba_main.c
>> index 0ce92c8..2d8c8bc 100644
>> --- a/drivers/staging/unisys/visorhba/visorhba_main.c
>> +++ b/drivers/staging/unisys/visorhba/visorhba_main.c
>> @@ -842,7 +842,6 @@ do_scsi_nolinuxstat(struct uiscmdrsp *cmdrsp, struct
>> scsi_cmnd *scsicmd)
>>  	struct scatterlist *sg;
>>  	unsigned int i;
>>  	char *this_page;
>> -	char *this_page_orig;
>>  	int bufind = 0;
>>  	struct visordisk_info *vdisk;
>>  	struct visorhba_devdata *devdata;
>> @@ -869,11 +868,14 @@ do_scsi_nolinuxstat(struct uiscmdrsp *cmdrsp,
>> struct scsi_cmnd *scsicmd)
>>
>>  		sg = scsi_sglist(scsicmd);
>>  		for (i = 0; i < scsi_sg_count(scsicmd); i++) {
>> -			this_page_orig = kmap_atomic(sg_page(sg + i));
>> -			this_page = (void *)((unsigned long)this_page_orig |
>> -					     sg[i].offset);
>> +			this_page = sg_map(sg + i, SG_KMAP_ATOMIC);
>> +			if (IS_ERR(this_page)) {
>> +				scsicmd->result = DID_ERROR << 16;
>> +				return;
>> +			}
>> +
>>  			memcpy(this_page, buf + bufind, sg[i].length);
>> -			kunmap_atomic(this_page_orig);
>> +			sg_unmap(sg + i, this_page, SG_KMAP_ATOMIC);
>>  		}
>>  	} else {
>>  		devdata = (struct visorhba_devdata *)scsidev->host-
>>> hostdata;
>> --
>> 2.1.4
>