Re: [RFC PATCH 2/5] kernel: Drop IA64 support from sig_fault handlers

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On Wed, 15 Feb 2023 at 12:15, Arnd Bergmann <arnd@xxxxxxxx> wrote:
>
> On Wed, Feb 15, 2023, at 11:19, Arnd Bergmann wrote:
> >
> > I can probably do the same recursive check for removed Kconfig
> > options that I used for finding dead code after the boardfile
> > removal.
>
> FWIW, here is the list from a bit of scripting.

Thanks

> Symbols that
> are only defined in arch/ia64 but are referenced elsewhere are:
>
> CONFIG_IA64
> CONFIG_IA64_PAGE_SIZE_64KB
> CONFIG_IA64_SGI_UV
> CONFIG_IA64_DEBUG_CMPXCHG
> CONFIG_MSPEC

These are all gone from the code after applying this series.

> Kconfig symbols that are only selected in arch/ia64 but
> defined elsewhere are
>
> CONFIG_ARCH_HAS_DMA_MARK_CLEAN
> CONFIG_ARCH_TASK_STRUCT_ALLOCATOR
> CONFIG_ARCH_TASK_STRUCT_ON_STACK
> CONFIG_ARCH_THREAD_STACK_ALLOCATOR
> CONFIG_GENERIC_IRQ_LEGACY
>

I can follow up with patches that remove all of those as well once we
progress on this series.

> plus a few that have only one or two other places selecting them:
>
> CONFIG_ARCH_CLOCKSOURCE_DATA (sparc64)
> CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC (x86)
> CONFIG_ATA_NONSTANDARD (powerpc-maple)
> CONFIG_FUNCTION_ALIGNMENT_32B (i386)
> CONFIG_HUGETLB_PAGE_SIZE_VARIABLE (powerpc64)
> CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT (x86, loongarch)
> CONFIG_ARCH_BINFMT_ELF_EXTRA_PHDRS (arm64, arch/um 32-bit)
> CONFIG_HAVE_FUNCTION_DESCRIPTORS (ppc64be, parisc64)
> CONFIG_HAVE_UNSTABLE_SCHED_CLOCK (parisc, x86)
> CONFIG_HAVE_VIRT_CPU_ACCOUNTING (powerpc, s390)
> CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN (arc, loongarch)
>
>       Arnd



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