Stephen reports that an x86 allmodconfig build fails to build the of_pmem driver due to a missing definition of of_node_to_nid(). That helper is currently only exported in the OF_NUMA=y case. In other cases, ppc and sparc, it is a weak symbol, and outside of those platforms it is a static inline.
Until an OF_NUMA=n configuration can reliably support usage of of_node_to_nid() in modules across architectures, mark this driver as 'bool' instead of 'tristate'. Cc: Rob Herring <r...@kernel.org> Cc: Oliver O'Halloran <ooh...@gmail.com> Reported-by: Stephen Rothwell <s...@canb.auug.org.au> Signed-off-by: Dan Williams <dan.j.willi...@intel.com> --- drivers/nvdimm/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/nvdimm/Kconfig b/drivers/nvdimm/Kconfig index 2d6862bf7436..f6c533c4d09b 100644 --- a/drivers/nvdimm/Kconfig +++ b/drivers/nvdimm/Kconfig @@ -103,7 +103,8 @@ config NVDIMM_DAX Select Y if unsure config OF_PMEM - tristate "Device-tree support for persistent memory regions" + # FIXME: make tristate once OF_NUMA dependency removed + bool "Device-tree support for persistent memory regions" depends on OF default LIBNVDIMM help