[PATCH v4] crypto: riscv/poly1305 - import OpenSSL/CRYPTOGAMS implementation

[Eric Biggers]

On Fri, Jun 27, 2025 at 09:10:30AM -0700, Sami Tolvanen wrote:
> > Would it be sufficient to #include <linux/cfi_types.h>?
> 
> Yes, but this requires the function to be indirectly called, because
> with CFI_CLANG the compiler only emits CFI type information for
> functions that are address-taken in C. If, like Eric suggested, these
> functions are not currently indirectly called, I would simply leave
> out the lpad instructions for kernel builds and worry about
> kernel-mode CFI annotations when they're actually needed:
> 
> # if defined(__riscv_zicfilp) && !defined(__KERNEL__)
>         lpad    0
> # endif

These functions aren't indirectly called, and I'm intending to keep it that way.

- Eric