On 13/01/14 09:28, Geert Uytterhoeven wrote:
On Fri, Jan 10, 2014 at 4:18 PM, Ben Dooks <ben.do...@codethink.co.uk> wrote:
--- a/drivers/sh/Makefile
+++ b/drivers/sh/Makefile
@@ -3,7 +3,10 @@
  #
  obj-y  := intc/

+ifeq ($(CONFIG_COMMON_CLK),n)
  obj-$(CONFIG_HAVE_CLK)         += clk/
+endif
+

This part breaks my Koelsch legacy (non-reference) build:

arch/arm/kernel/built-in.o: In function `twd_local_timer_common_register':
io.c:(.init.text+0x1804): undefined reference to `clk_enable'
io.c:(.init.text+0x1828): undefined reference to `clk_get_rate'
...

Both of my Koelsch legacy and reference configs have CONFIG_HAVE_CLK=y,
but only the reference once has CONFIG_COMMON_CLK=y.

Hmm, thought undefined symbols got set to 'n'.

I can either fix this by

ifneq ($(CONFIG_COMMON_CLK),y)
endif

or adding an extra Kconfig for SH specific legacy clock code.

--
Ben Dooks                               http://www.codethink.co.uk/
Senior Engineer                         Codethink - Providing Genius
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