Re: [PATCH 09/15] Drivers: hv: Introduce hv_output_arg_exists in hv_common

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On 8/2/2023 5:16 PM, Wei Liu wrote:
> On Thu, Jul 27, 2023 at 12:54:44PM -0700, Nuno Das Neves wrote:
>> This is a more flexible approach for determining whether to allocate the
>> output page.
> 
>> This will be used in both mshv_vtl and root partition.
>>
>> Signed-off-by: Nuno Das Neves <nunodasneves@xxxxxxxxxxxxxxxxxxx>
>> ---
>>  drivers/hv/hv_common.c | 30 +++++++++++++++++++++++++-----
>>  1 file changed, 25 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/hv/hv_common.c b/drivers/hv/hv_common.c
>> index 99d9b262b8a7..16f069beda78 100644
>> --- a/drivers/hv/hv_common.c
>> +++ b/drivers/hv/hv_common.c
>> @@ -57,6 +57,18 @@ EXPORT_SYMBOL_GPL(hyperv_pcpu_input_arg);
>>  void * __percpu *hyperv_pcpu_output_arg;
>>  EXPORT_SYMBOL_GPL(hyperv_pcpu_output_arg);
>>  
>> +/*
>> + * Determine whether output arg is in use, for allocation/deallocation
>> + */
>> +static bool hv_output_arg_exists(void)
>> +{
>> +	bool ret = hv_root_partition ? true : false;
>> +#ifdef CONFIG_MSHV_VTL
>> +	ret = true;
>> +#endif
> 
> This should not be here. As far as I can tell, CONFIG_MSHV_VTL is
> introduced in a later patch.
> 

Ok, I will introduce this #ifdef with the mshv_vtl module.

> The rest looks okay.
> 
> Thanks,
> Wei.




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