[PATCH] arm64/signal: Clean up SVE/SME feature checking inconsistency

[Mark Brown]

On Thu, Jun 23, 2022 at 06:47:38PM +0100, Will Deacon wrote:

> This breaks the allnoconfig build for me:

> ld.lld: error: undefined symbol: restore_sve_fpsimd_context
> >>> referenced by signal.c
> >>>               kernel/signal.o:(__arm64_sys_rt_sigreturn) in archive arch/arm64/built-in.a
> make: *** [Makefile:1164: vmlinux] Error 1

I can't reproduce that here - could you confirm exactly what tree you
applied against and what toolchain you're using?  I'm normally using
clang 15 at the minute, 14 seems fine too, and applied against both
-next and v5.19-rc3 all of which are building an allnoconfig happily for
me.
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