Re: [PATCH v2 00/13] Implement livepatch on PPC32 and more

On Mon, 20 Dec 2021 16:37:58 +0000, Christophe Leroy wrote:

This series implements livepatch on PPC32 and implements
CONFIG_DYNAMIC_FTRACE_WITH_ARGS to simplify ftracing.

v2:
- Fix problem with strict modules RWX
- Convert powerpc to CONFIG_DYNAMIC_FTRACE_WITH_ARGS
- Convert function graph tracing to C
- Refactor PPC32 versus PPC64

[...]

Patches 1 and 3-13 applied to powerpc/next.

[01/13] livepatch: Fix build failure on 32 bits processors
        https://git.kernel.org/powerpc/c/2f293651eca3eacaeb56747dede31edace7329d2
[03/13] powerpc/module_32: Fix livepatching for RO modules
        https://git.kernel.org/powerpc/c/0c850965d6909d39fd69d6a3602bb62b48cad417
[04/13] powerpc/ftrace: Add support for livepatch to PPC32
        https://git.kernel.org/powerpc/c/a4520b25276500f1abcfc55d24f1251b7b08eff6
[05/13] powerpc/ftrace: Don't save again LR in ftrace_regs_caller() on PPC32
        https://git.kernel.org/powerpc/c/7875bc9b07cde868784195e215f4deaa0fa928a2
[06/13] powerpc/ftrace: Simplify PPC32's return_to_handler()
        https://git.kernel.org/powerpc/c/7bdb478c1d15cfd3a92db6331cb2d3dd3a8b9436
[07/13] powerpc/ftrace: Prepare PPC32's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS
        https://git.kernel.org/powerpc/c/d95bf254be5f74c1e4c8f7cb64e2e21b9cc91717
[08/13] powerpc/ftrace: Prepare PPC64's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS
        https://git.kernel.org/powerpc/c/c75388a8ceffbf1bf72c61afe66a72e58aa20c74
[09/13] powerpc/ftrace: Implement CONFIG_DYNAMIC_FTRACE_WITH_ARGS
        https://git.kernel.org/powerpc/c/40b035efe288f42bbf4483236cde652584ccb64e
[10/13] powerpc/ftrace: Refactor ftrace_{en/dis}able_ftrace_graph_caller
        https://git.kernel.org/powerpc/c/0c81ed5ed43863d313cf253b0ebada6ea2f17676
[11/13] powerpc/ftrace: directly call of function graph tracer by ftrace caller
        https://git.kernel.org/powerpc/c/830213786c498b0c488fedd2abc15a7ce442b42f
[12/13] powerpc/ftrace: Prepare ftrace_64_mprofile.S for reuse by PPC32
        https://git.kernel.org/powerpc/c/41315494beed087011f256b4f1439bb3d8236904
[13/13] powerpc/ftrace: Remove ftrace_32.S
        https://git.kernel.org/powerpc/c/4ee83a2cfbc46c13f2a08fe6d48dbcede53cdbf8

cheers