On Tue, 2023-11-14 at 20:05 +0000, Mark Brown wrote: > +config ARCH_HAS_USER_SHADOW_STACK > + bool > + help > + The architecture has hardware support for userspace shadow > call > + stacks (eg, x86 CET, arm64 GCS, RISC-V Zisslpcfi). I feel like normally a patch like this should come with the second feature that gets enabled. (i.e. arm or riscv). Especially since the comment lists currently unsupported features. I think something like this got nixed by an x86 maintainer earlier, but that was before these other features were getting pushed. I don't have a strong objection to having it ahead of the other features though and it is nice to remove X86 defines out of core code.
