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SubjectRe: [PATCH v2 00/24] cpu,sched: Mark arch_cpu_idle_dead() __noreturn
On Mon, Feb 13, 2023 at 11:05:34PM -0800, Josh Poimboeuf wrote:
> v2:
> - make arch_call_rest_init() and rest_init() __noreturn
> - make objtool 'global_returns' work for weak functions
> - rebase on tip/objtool/core with dependencies merged in (mingo)
> - add acks
>
> v1.1:
> - add __noreturn to all arch_cpu_idle_dead() implementations (mpe)

With this, rcutorture no longer gets objtool complaints on x86, thank you!

Tested-by: Paul E. McKenney <paulmck@kernel.org>

> Josh Poimboeuf (24):
> alpha/cpu: Expose arch_cpu_idle_dead()'s prototype declaration
> alpha/cpu: Make sure arch_cpu_idle_dead() doesn't return
> arm/cpu: Make sure arch_cpu_idle_dead() doesn't return
> arm64/cpu: Mark cpu_die() __noreturn
> csky/cpu: Make sure arch_cpu_idle_dead() doesn't return
> ia64/cpu: Mark play_dead() __noreturn
> loongarch/cpu: Make sure play_dead() doesn't return
> loongarch/cpu: Mark play_dead() __noreturn
> mips/cpu: Expose play_dead()'s prototype definition
> mips/cpu: Make sure play_dead() doesn't return
> mips/cpu: Mark play_dead() __noreturn
> powerpc/cpu: Mark start_secondary_resume() __noreturn
> sh/cpu: Make sure play_dead() doesn't return
> sh/cpu: Mark play_dead() __noreturn
> sh/cpu: Expose arch_cpu_idle_dead()'s prototype definition
> sparc/cpu: Mark cpu_play_dead() __noreturn
> x86/cpu: Make sure play_dead() doesn't return
> x86/cpu: Mark play_dead() __noreturn
> xtensa/cpu: Make sure cpu_die() doesn't return
> xtensa/cpu: Mark cpu_die() __noreturn
> sched/idle: Make sure weak version of arch_cpu_idle_dead() doesn't
> return
> objtool: Include weak functions in 'global_noreturns' check
> init: Make arch_call_rest_init() and rest_init() __noreturn
> sched/idle: Mark arch_cpu_idle_dead() __noreturn
>
> arch/alpha/kernel/process.c | 4 +++-
> arch/arm/kernel/smp.c | 4 +++-
> arch/arm64/include/asm/smp.h | 2 +-
> arch/arm64/kernel/process.c | 2 +-
> arch/csky/kernel/smp.c | 4 +++-
> arch/ia64/kernel/process.c | 6 +++---
> arch/loongarch/include/asm/smp.h | 2 +-
> arch/loongarch/kernel/process.c | 2 +-
> arch/loongarch/kernel/smp.c | 2 +-
> arch/mips/include/asm/smp.h | 2 +-
> arch/mips/kernel/process.c | 2 +-
> arch/mips/kernel/smp-bmips.c | 3 +++
> arch/mips/loongson64/smp.c | 1 +
> arch/parisc/kernel/process.c | 2 +-
> arch/powerpc/include/asm/smp.h | 2 +-
> arch/powerpc/kernel/smp.c | 2 +-
> arch/riscv/kernel/cpu-hotplug.c | 2 +-
> arch/s390/kernel/idle.c | 2 +-
> arch/s390/kernel/setup.c | 2 +-
> arch/sh/include/asm/smp-ops.h | 5 +++--
> arch/sh/kernel/idle.c | 3 ++-
> arch/sparc/include/asm/smp_64.h | 2 +-
> arch/sparc/kernel/process_64.c | 2 +-
> arch/x86/include/asm/smp.h | 3 ++-
> arch/x86/kernel/process.c | 4 ++--
> arch/xtensa/include/asm/smp.h | 2 +-
> arch/xtensa/kernel/smp.c | 4 +++-
> include/linux/cpu.h | 2 +-
> include/linux/start_kernel.h | 4 ++--
> init/main.c | 4 ++--
> kernel/sched/idle.c | 2 +-
> tools/objtool/check.c | 11 +++++++----
> 32 files changed, 57 insertions(+), 39 deletions(-)
>
> --
> 2.39.1
>

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