[PATCH v3 2/9] ARM: tlbflush: Make TLB flushes into static inlines

[Linus Walleij]

On Mon, Mar 11, 2024 at 4:35 PM Sami Tolvanen <samitolvanen at google.com> wrote:
> On Mon, Mar 11, 2024 at 3:04 AM Ard Biesheuvel <ardb at kernel.org> wrote:
>>
> > This works for some function attributes (e.g., __efiapi is used like
> > this), but the attribute specifier to which __nocfi resolves does not
> > appear to be usable in the same manner.
> >
> > Best would be to annotate the asm code using
> > SYM_TYPED_FUNC_START/_END, so that the CFI machinery is invoked at the
> > call site to validate the function type of the destination.
>
> Agreed, ideally we would annotate indirectly called assembly functions
> with CFI types and avoid __nocfi wrappers.

I'm taking a stab at SYM_TYPED_FUNC_* for ARM, as we don't have them
yet.

Yours,
Linus Walleij