Backporting any fix to older kernels is a chore, the further back you
go, the harder and less fun it is.
The tipping point is really quick to where someone hacking the kernel
for fun simply isn't going to do it, nor should they be expected to.
That's why people who want a stable supported kernel with fixes
constantly backported have grown accustomed to paying for that service.
And to me that is entirely reasonable.
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