On Sun, 30 Dec 2018, James Bottomley wrote:
That said, as has been pointed out, the current #ifdef has a failing corner case when both are modular (because the code should then be included). The runtime macro that correctly expresses this is IS_REACHABLE(CONFIG_NVRAM).
No, in the case of CONFIG_NVRAM=m, the conditional code is deliberately excluded. This is discussed in the patch description. The convention on PPC32 is that device drivers drop support for NVRAM in this situation. I've adopted the PPC32 convention here because M68K drivers and PPC32 drivers have to co-exist (I'm thinking of valkyriefb, but there are other examples). --
James
