On Thu, 30 Nov 2023 00:19:15 +1100, Michael Ellerman wrote:

With HIBERNATION=y the build breaks with:

  arch/powerpc/kernel/swsusp_64.c:14:6: error: no previous prototype for ‘do_after_copyback’ [-Werror=missing-prototypes]
  14 | void do_after_copyback(void)
     |      ^~~~~~~~~~~~~~~~~

do_after_copyback() is only called from asm, so there is no prototype,
nor any header where it makes sense to place one. Just add a prototype
in the C file to fix the build error.

[...]

Applied to powerpc/next.

[1/5] powerpc/suspend: Add prototype for do_after_copyback()
      https://git.kernel.org/powerpc/c/360f051d82ee0cc580edfffe9e8c0b93011ab86d
[2/5] powerpc/512x: Make pdm360ng_init() static
      https://git.kernel.org/powerpc/c/24afc61990de29dd47be7642c196a173f6cc21fc
[3/5] powerpc/512x: Fix missing prototype warnings
      https://git.kernel.org/powerpc/c/10feb8f9612239b665815807e950bcd999a75dd2
[4/5] powerpc/44x: Make ppc44x_idle_init() static
      https://git.kernel.org/powerpc/c/b90ad501715f2feb1b0bf97aa700adb39c78deb3
[5/5] powerpc/64s: Fix CONFIG_NUMA=n build
      https://git.kernel.org/powerpc/c/ede66cd22441820cbd399936bf84fdc4294bc7fa

cheers