While building an x86 distro kernel, I hit the following:
Kernel: arch/x86/boot/bzImage is ready  (#7)
ERROR: "of_mtd_parse_partitions" [drivers/mtd/devices/m25p80.ko]
undefined!
of_mtd_parse_partitions is defined with MTD_OF_PARTS, and that's only
built on PPC and microblaze.  The code in question should be wrapped w/
a stricter #ifdef.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
                        nr_parts = data->nr_parts;
                }
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_MTD_OF_PARTS
                if (nr_parts <= 0 && spi->dev.of_node) {
                        nr_parts = of_mtd_parse_partitions(&spi->dev,
                                        spi->dev.of_node, &parts);