[dpdk-dev] [PATCH V4 1/9] bus: introduce hotplug failure handler

[Guo, Jia]

On 7/4/2018 6:21 AM, Thomas Monjalon wrote:
> 29/06/2018 12:30, Jeff Guo:
>>   /**
>> + * Implementation a specific hot plug handler, which is responsible
>> + * for handle the failure when hot remove the device, guaranty the system
>> + * would not crash in the case.
>> + * @param dev
>> + *	Pointer of the device structure.
>> + *
>> + * @return
>> + *	0 on success.
>> + *	!0 on error.
>> + */
>> +typedef int (*rte_bus_hotplug_handler_t)(struct rte_device *dev);
> [...]
>> @@ -211,6 +224,8 @@ struct rte_bus {
>>   	rte_bus_parse_t parse;       /**< Parse a device name */
>>   	struct rte_bus_conf conf;    /**< Bus configuration */
>>   	rte_bus_get_iommu_class_t get_iommu_class; /**< Get iommu class */
>> +	rte_bus_hotplug_handler_t hotplug_handler;
>> +						/**< handle hot plug on bus */
> The name is misleading.
> It is to handle unplugging but is called "hotplug".

ok, so i prefer hotplug_failure_handler than hot_unplug_handler, since 
it is more explicit for failure handle, and more clearly.

> In order to demonstrate how the handler is used, you should
> introduce the code using this handler in the same patch.
>

sorry, i check the history of rte_bus.h, and the way is introduce ops at 
first, second implement in specific bus, then come across the usage.
I think that way clear and make sense. what do you think?
Anyway, i will check the commit log if is there any misleading.