Re: Dealing with SUBLEVEL overflow in backports

On Mon, 2022-02-07 at 10:15 +0100, Johannes Berg wrote:
> On Mon, 2022-02-07 at 01:19 +0000, Jiaxun Yang wrote:
> > Hi backport forks,
> > 
> > I was trying to fix ckmake FAIL building against 4.9 for 4.9.297+.
> > 
> > I found that macro KERNEL_VERSION_IN_RANGE(4,9,297, 4,10,0) won't work
> > because SUBLEVEL 297 had overflowed 4 bit (255) in KERNEL_VERSION.
> > 
> > How are we supposed to deal with such situation?
> > 
> 
> Hm. I guess the only way would be to somehow make a Kconfig variable in
> backports, that uses the Makefile settings? But env="SUBLEVEL" doesn't
> work, so not sure, maybe some Makefile trickery to extract it and write
> it to the config?
> 

Or just find a way to handle the specific area? Is this for the
build_bug.h stuff?

johannes
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