Re: [PATCH v2 0/7] Add PTP support for BCM53128 switch

[Vladimir Oltean]

On Tue, Nov 09, 2021 at 10:50:02AM +0100, Martin Kaistra wrote:
> Ideally, for the B53=m case, I would have liked to include the PTP
> support in the b53_module itself, however I couldn't find a way to do
> that without renaming either the common source file or the module, which
> I didn't want to do.
> 
> Instead, b53_ptp will be allowed as a loadable module, but only if
> b53_common is also a module, otherwise it will be built-in.

Does this not work?

obj-$(CONFIG_B53)		+= b53_common.o

ifdef CONFIG_B53_PTP
b53_common-objs += b53_ptp.o
endif

(haven't tried though)