netdev - Re: Stable request: iwlwifi: mvm: don't send RFH_QUEUE_CONFIG

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Date:   Mon, 8 Feb 2021 13:38:40 +0100
From:   Greg KH <greg@...ah.com>
To:     Jason Andryuk <jandryuk@...il.com>
Cc:     stable@...r.kernel.org, Luca Coelho <luciano.coelho@...el.com>,
        Kalle Valo <kvalo@...eaurora.org>, netdev@...r.kernel.org
Subject: Re: Stable request: iwlwifi: mvm: don't send RFH_QUEUE_CONFIG_CMD
 with no queues

On Sun, Feb 07, 2021 at 09:19:07AM -0500, Jason Andryuk wrote:
> Hi,
> 
> commit 64f55156f7adedb1ac5bb9cdbcbc9ac05ff5a724 upstream
> 
> The requested patch allows the iwlwifi driver to work with newer AX200
> wifi cards when MSI-X interrupts are not available.  Without it,
> bringing an interface "up" fails with a Microcode SW error.  Xen PCI
> passthrough with a linux stubdom doesn't enable MSI-X which triggers
> this condition.
> 
> I think it's only applicable to 5.4 because it's in 5.10 and earlier
> kernels don't have AX200 support.
> 
> I'm making this request to stable and CC-ing netdev since I saw a
> message [1] on netdev saying:
> """
> We're actually experimenting with letting Greg take networking patches
> into stable like he does for every other tree. If the patch doesn't
> appear in the next stable release please poke stable@ directly.
> """
> 
> Thanks,
> Jason
> 
> [1] https://lore.kernel.org/netdev/20210129193030.46ef3b17@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com/

Now queued up.

thanks,

greg k-h