A new coding effort recently folded into the next version of the Linux kernel may finally resolve the long-running problems associated with Linux on ARM processors. While devices like the Raspberry Pi have shown what can be done with Linux on the low-cost, low-power ARM processor, the burden of developing Linux on the growing number of ARM-derivative processors on the market has been, as Linus Torvalds himself has described it, “a fucking pain in the ass.”

via Next Linux kernel release supports more ARMs with less code | Ars Technica.

Until now, each implementation of ARM by manufacturers has had its own associated kernel code tree, creating a code management nightmare.