thanks Arnd for the comment. V4 is on its way
> On Thursday 08 October 2015 14:09:24 Yaniv Gardi wrote:
>> This patch exposes the ioctl interface for UFS driver via SCSI device
>> ioctl interface. As of now UFS driver would provide the ioctl for query
>> interface to connected UFS device.
>>
>> Signed-off-by: Dolev Raviv <draviv@xxxxxxxxxxxxxx>
>> Signed-off-by: Noa Rubens <noag@xxxxxxxxxxxxxx>
>> Signed-off-by: Raviv Shvili <rshvili@xxxxxxxxxxxxxx>
>> Signed-off-by: Gilad Broner <gbroner@xxxxxxxxxxxxxx>
>> Signed-off-by: Yaniv Gardi <ygardi@xxxxxxxxxxxxxx>
>
> Thanks for the changes, looks much better already
>
>
>> @@ -5106,6 +5308,10 @@ static struct scsi_host_template
>> ufshcd_driver_template = {
>> .eh_device_reset_handler = ufshcd_eh_device_reset_handler,
>> .eh_host_reset_handler = ufshcd_eh_host_reset_handler,
>> .eh_timed_out = ufshcd_eh_timed_out,
>> + .ioctl = ufshcd_ioctl,
>> +#ifdef CONFIG_COMPAT
>> + .compat_ioctl = ufshcd_ioctl,
>> +#endif
>> .this_id = -1,
>> .sg_tablesize = SG_ALL,
>> .cmd_per_lun = UFSHCD_CMD_PER_LUN,
>
> no need for the #ifdef here.
in include\scsi\scsi_host.h
the hook - compat_ioctl is defined inside #ifdef CONFIG_COMPAT
#ifdef CONFIG_COMPAT
int (* compat_ioctl)(struct scsi_device *dev, int cmd, void __user *arg);
#endif
>
>> diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
>> index e0a3398..fada160 100644
>> --- a/include/scsi/scsi.h
>> +++ b/include/scsi/scsi.h
>> @@ -284,6 +284,7 @@ static inline int scsi_is_wlun(u64 lun)
>> * Here are some scsi specific ioctl commands which are sometimes
>> useful.
>> *
>> * Note that include/linux/cdrom.h also defines IOCTL 0x5300 - 0x5395
>> + * include/uapi/scsi/ufs/ioctl.h defines 0x5388
>> */
>>
>
> The comment is now wrong.
>
>
> Hmm, the buffer now is not aligned to four bytes, which will make copying
> it
> a bit slower. If that can be a concern, adding a padding byte would help.
>
> Arnd
>
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