[POWERPC] Fix building of pmac32 when CONFIG_NVRAM=m

Kamalesh Babulal (kamalesh@linux.vnet.ibm.com) reports that CONFIG_NVRAM=m
is valid in terms of Kconfig but fails to build with:
  Building modules, stage 2.
  MODPOST 1401 modules
ERROR: "pmac_newworld" [arch/powerpc/platforms/powermac/nvram.ko] undefined!
ERROR: "__alloc_bootmem" [arch/powerpc/platforms/powermac/nvram.ko] undefined!
make[1]: *** [__modpost] Error

The arch/powerpc/platforms/powermac/nvram.c code really needs to be
builtin, but as its compilation is dependent on a generic Kconfig
symbol we force nvram.c to be builtin if CONFIG_NVRAM is 'y' or 'm'.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/platforms/powermac/Makefile b/arch/powerpc/platforms/powermac/Makefile
index 78093d7..4d72c8f 100644 (file)
--- a/arch/powerpc/platforms/powermac/Makefile
+++ b/arch/powerpc/platforms/powermac/Makefile
@@ -6,7 +6,10 @@ obj-y                          += pic.o setup.o time.o feature.o pci.o \
 obj-$(CONFIG_PMAC_BACKLIGHT)   += backlight.o
 obj-$(CONFIG_CPU_FREQ_PMAC)    += cpufreq_32.o
 obj-$(CONFIG_CPU_FREQ_PMAC64)  += cpufreq_64.o
-obj-$(CONFIG_NVRAM)            += nvram.o
+# CONFIG_NVRAM is an arch. independant tristate symbol, for pmac32 we really
+# need this to be a bool.  Cheat here and pretend CONFIG_NVRAM=m is really
+# CONFIG_NVRAM=y
+obj-$(CONFIG_NVRAM:m=y)                += nvram.o
 # ppc64 pmac doesn't define CONFIG_NVRAM but needs nvram stuff
 obj-$(CONFIG_PPC64)            += nvram.o
 obj-$(CONFIG_PPC32)            += bootx_init.o

diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index bf44c54..00bd016 100644 (file)
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -337,7 +337,8 @@ static void __init pmac_setup_arch(void)
        find_via_pmu();
        smu_init();
 
-#if defined(CONFIG_NVRAM) || defined(CONFIG_PPC64)
+#if defined(CONFIG_NVRAM) || defined(CONFIG_NVRAM_MODULE) || \
+    defined(CONFIG_PPC64)
        pmac_nvram_init();
 #endif