netdev - Re: [PATCH v2 net] MIPS: lantiq: dma: add dev pointer

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Message-ID: <e7185ec8-8426-9359-ab17-26b9a64c41cb@hauke-m.de>
Date:   Tue, 11 Sep 2018 23:36:01 +0200
From:   Hauke Mehrtens <hauke@...ke-m.de>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, f.fainelli@...il.com,
        john@...ozen.org, linux-mips@...ux-mips.org,
        hauke.mehrtens@...el.com, paul.burton@...s.com
Subject: Re: [PATCH v2 net] MIPS: lantiq: dma: add dev pointer

On 09/10/2018 02:45 PM, Andrew Lunn wrote:
> On Sun, Sep 09, 2018 at 09:26:23PM +0200, Hauke Mehrtens wrote:
>> dma_zalloc_coherent() now crashes if no dev pointer is given.
>> Add a dev pointer to the ltq_dma_channel structure and fill it in the
>> driver using it.
>>
>> This fixes a bug introduced in kernel 4.19.
>>
>> Signed-off-by: Hauke Mehrtens <hauke@...ke-m.de>
>> ---
>>
>> no changes since v1.
>>
>> This should go into kernel 4.19 and I have some other patches adding new 
>> features for kernel 4.20 which are depending on this, so I would prefer 
>> if this goes through the net tree. 
> 
> Hi Hauke
> 
> Is this a build time dependency, or a runtime dependency?
> 
> What we don't want to do is add the switch driver to net-next and find
> it does not compile because this change is not in net-next yet.
> 
>    Andrew
> 

Yes, this has a compile dependency because I had to extend the API.

Hauke



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