[PATCH] usertools: fix bind failure from dpdk to kernel

[Krzysztof Kozlowski]

On 09/08/2022 20:58, Stephen Hemminger wrote:
>>
>> However, due to the patch[1] merged into 5.19 kernel, 'driver_override'
>> in the pci_dev is no longer NULL by writing '\00' to driver_override file.
>> This causes PCI match device failure and the device will never be bound to
>> their kernel driver.
> 
> 
> Linux kernel does not look favorably on API changes and that looks like
> the kernel changed behavior. That should be reported and fixed there.

To clarify around this issue:

There were no API changes. Linux kernel follows the API exactly how it
is described in the API document since 2014:
Documentation/ABI/testing/sysfs-bus-pci

There was no change in kernel API.

There was a change in undocumented, unsupported and wrong usage of
driver_override API.

Best regards,
Krzysztof