Breno Leitao <[email protected]> writes:
> On Tue, Apr 09, 2024 at 01:03:21PM +0300, Kalle Valo wrote:
>
>> Breno Leitao <[email protected]> writes:
>>
>> >> > Reading the issue, I am afraid that freeing netdev explicitly
>> >> > (free_netdev()) might not be the best approach at the exit path.
>> >> >
>> >> > I would like to try to leverage the ->needs_free_netdev netdev
>> >> > mechanism to do the clean-up, if that makes sense. I've updated the
>> >> > ath11k patch, and I am curious if that is what we want.
>> >> >
>> >> > Would you mind testing a net patch I have, please?
>> >> >
>> >> > https://github.com/leitao/linux/tree/wireless-dummy_v2
>> >>
>> >> I tested this again with my WCN6855 hw2.0 x86 test box on this commit:
>> >>
>> >> a87674ac820e wifi: ath11k: allocate dummy net_device dynamically
>> >>
>> >> It passes my tests and doesn't crash, but I see this kmemleak warning a
>> >> lot:
>> >
>> > Thanks Kalle, that was helpful. The device is not being clean-up
>> > automatically.
>> >
>> > Chatting with Jakub, he suggested coming back to the original approach,
>> > but, adding a additional patch, at the free_netdev().
>> >
>> > Would you mind running another test, please?
>> >
>> > https://github.com/leitao/linux/tree/wireless-dummy_v3
>> >
>> > The branch above is basically the original branch (as in this patch
>> > series), with this additional patch:
>> >
>> > Author: Breno Leitao <[email protected]>
>> > Date: Mon Apr 8 11:37:32 2024 -0700
>> >
>> > net: free_netdev: exit earlier if dummy
>>
>> I tested with the same ath11k hardware and this one passes all my
>> (simple) ath11k tests, no issues found. I used this commit:
>>
>> 1c10aebaa8ce net: free_netdev: exit earlier if dummy
>
> Thank you so much for the test.
>
> I will respin a v2 of this patchset with the additional patch included.
Sounds good. Feel free to add:
Tested-by: Kalle Valo <[email protected]>
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