"Another week, another -rc. It actually *felt* pretty calm, but according to the numbers it's a fairly average -rc2, maybe it even has slightly more changes than usual," began Torvald's 3.4-rc2 release message.
Besides providing a bunch of bug/regression fixes across the board, this second release candidate for Linux 3.4 does introduce the new HSI (High-Speed Serial Interface) framework, DMA-BUF PRIME, and the new DMA mapping code. It's a week past the 3.4 merge window but when releasing -rc1 Linus shared his plans to still pull these items, but POHMELFS was left from pulling.
As usual, the fixes for this week's development release is mostly architecture and driver fixes along with sprinkling of power management updates and other items.
For those not familiar with the features of the forthcoming Linux 3.4 kernel, see the 3.4-rc1 announcement where some items are mentioned or the other Linux 3.4 articles on Phoronix.