Re: Dealing with SUBLEVEL overflow in backports

On 2/8/22 16:51, Jiaxun Yang wrote:
> 
> 
> 在 2022/2/8 15:02, Johannes Berg 写道:
>> On Tue, 2022-02-08 at 14:50 +0000, Jiaxun Yang wrote:
>>> Ah I tried this approach but find that this may break other modules
>>> depending on our headers because the cflag won't come with be
>>> inherited by them.
>>>
>> Hm. I thought about if that could happen, but decided not? We only
>> compile C files in backports, which other parts would break?
> 
> For example OpenWRT compiles mac80211 purely from backports.
> 
> So for other out-of-tree wireless drivers they have to include headers
> provided by backports, but they can't recieve cflags from our makefile.
> 
> So it will leave those macros undefined ad led to problems.
> 
> Thanks.
> - Jiaxun
> 
>>
>> johannes
> 
Hi,

What build problem do you get when you include "#include <linux/bug.h>" 
here on kernel 4.9.299? Can we somehow work around this problem by 
detection the kernel version in a different way based on a different define?

Hauke
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