[PATCH v1 1/1] riscv: Add RVV memset via multiarch/IFUNC

[Yao Zihong]

My understanding is that the kernel may eventually make riscv_hwprobe
reflect whether an extension is enabled, not just present, but that is
not the case today.

I’m unsure whether it is glibc’s responsibility to cover this gap in the
meantime.
If it is, then perhaps we should gate the RVV path on both riscv_hwprobe
(to ensure V = 1.0 capability) and dl_hwcap.V (to respect per-process enablement
via prctl/sysctl).

Do you think this should be handled in glibc or left for the kernel side?

Thanks,
Zihong