Linus Torvalds <torva...@linux-foundation.org> writes: > On Fri, Mar 25, 2022 at 3:25 AM Michael Ellerman <m...@ellerman.id.au> wrote: >> >> Livepatch support for 32-bit is probably the standout new feature, otherwise >> mostly just >> lots of bits and pieces all over the board. > > Heh. I would have expected 32-bit ppc to be entirely legacy by now, so > it's a bit surprising to see that being a standout feature.
We still get the odd bug report from people running mainline, or recent stable kernels, on 32-bit. And obviously Christophe has been doing lots of work on the Linux side, so in that sense 32-bit is alive and well. Having said that I don't think we'll see any new 32-bit CPU designs, so the clock is slowly ticking. > That said: > >> There's a series of commits cleaning up function descriptor handling, > > For some reason I also thought that powerpc had actually moved away > from function descriptors, so I'm clearly not keeping up with the > times. No you're right, we have moved away from them, but not entirely. Functions descriptors are still used for 64-bit big endian, but they're not used for 64-bit little endian, or 32-bit. cheers
