netdev - Re: [PATCH net-next v3] net: psample: Introduce stubs to remove NIC driver dependency

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Date:   Thu, 28 Jan 2021 09:45:59 +0800
From:   Chris Mi <cmi@...dia.com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     <netdev@...r.kernel.org>, <jiri@...dia.com>, <saeedm@...dia.com>,
        "kernel test robot" <lkp@...el.com>
Subject: Re: [PATCH net-next v3] net: psample: Introduce stubs to remove NIC
 driver dependency

On 1/28/2021 7:49 AM, Jakub Kicinski wrote:
> On Wed, 27 Jan 2021 18:16:48 +0800 Chris Mi wrote:
>> @@ -35,4 +45,21 @@ static inline void psample_sample_packet(struct psample_group *group,
>>   
>>   #endif
>>   
>> +static void
> static inline
Done.
>
>> +psample_nic_sample_packet(struct psample_group *group,
>> +			  struct sk_buff *skb, u32 trunc_size,
>> +			  int in_ifindex, int out_ifindex,
>> +			  u32 sample_rate)
>> +{
>> +	const struct psample_ops *ops;
>> +
>> +	rcu_read_lock();
>> +	ops = rcu_dereference(psample_ops);
>> +	if (ops)
>> +		ops->sample_packet(group, skb, trunc_size,
>> +				   in_ifindex, out_ifindex,
>> +				   sample_rate);
>> +	rcu_read_unlock();
>> +}