Re: [PATCH v6 5/5] vfio/pci: Implement VFIO_DEVICE_FEATURE_LOW_POWER_ENTRY_WITH_WAKEUP

[Abhishek Sahu]

On 8/17/2022 7:23 PM, Jason Gunthorpe wrote:
> On Wed, Aug 17, 2022 at 10:43:23AM +0530, Abhishek Sahu wrote:
> 
>> +static int
>> +vfio_pci_core_pm_entry_with_wakeup(struct vfio_device *device, u32 flags,
>> +				   void __user *arg, size_t argsz)
> 
> This should be
>   struct vfio_device_low_power_entry_with_wakeup __user *arg
> 

 Thanks Jason.

 I can update this.

 But if we look the existing code, for example
 (vfio_ioctl_device_feature_mig_device_state()), then there it still uses
 'void __user *arg' only. Is this a new guideline which we need to take
 care ?
 
>> @@ -1336,6 +1389,9 @@ int vfio_pci_core_ioctl_feature(struct vfio_device *device, u32 flags,
>>  		return vfio_pci_core_feature_token(device, flags, arg, argsz);
>>  	case VFIO_DEVICE_FEATURE_LOW_POWER_ENTRY:
>>  		return vfio_pci_core_pm_entry(device, flags, arg, argsz);
>> +	case VFIO_DEVICE_FEATURE_LOW_POWER_ENTRY_WITH_WAKEUP:
>> +		return vfio_pci_core_pm_entry_with_wakeup(device, flags,
>> +							  arg, argsz);
>>  	case VFIO_DEVICE_FEATURE_LOW_POWER_EXIT:
>>  		return vfio_pci_core_pm_exit(device, flags, arg, argsz);
> 
> Best to keep these ioctls sorted
> 
> Jason

 Do we need to keep the IOCTL name alphabetically sorted in the case list.
 Currently, I have added in the order of IOCTL numbers.

 Regards,
 Abhishek