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

2017-04-14 Thread Kershner, David A 
> -Original Message-
> From: Logan Gunthorpe [mailto:log...@deltatee.com]
...
> Subject: [PATCH 10/22] staging: unisys: visorbus: Make use of the new
> sg_map helper function
> 
> Straightforward conversion to the new function.
> 
> Signed-off-by: Logan Gunthorpe 

Can you add Acked-by for this patch? 

Acked-by: David Kershner 

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

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

2017-04-14 Thread 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 
> 
> 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
>