Re: [PATCH v3 1/4] DYNAMIC_FTRACE configurable with and without REGS

From: Torsten Duwe
Date: Mon Oct 01 2018 - 11:03:56 EST


On Mon, Oct 01, 2018 at 04:52:27PM +0200, Ard Biesheuvel wrote:
>
> I guess we now have Kbuild/Kconfig support for this, no? I mean, we
> can now show/hide options depending on the capabilities of the
> toolchain.

Config options depending on flags availability?

> I am not saying it would be a better approach, though - I'd rather
> have a warning than have things silently disabled, but other people
> may think differently.

Even then this switch has to be enabled, no matter who or what sets it.
Note that this patch leaves everything as-is. Only arm64 users with
"old" compilers would need to take action.

Torsten