[PATCH] mach-ks8695/Kconfig: Make MACH_KS8695 depends on PCI

Hi Manjunath,

On 06/08/13 20:43, Manjunath Goudar wrote:

On 6 August 2013 07:37, Greg Ungerer <gerg at uclinux.org <mailto:gerg@uclinux.org>> wrote:
    On 05/08/13 20:31, Manjunath Goudar wrote:
    > On 5 August 2013 14:47, Viresh Kumar <viresh.kumar at linaro.org <mailto:viresh.kumar@linaro.org> <mailto:viresh.kumar at linaro.org <mailto:viresh.kumar@linaro.org>>> wrote:
    >
    >     On 5 August 2013 14:37, Manjunath Goudar <manjunath.goudar at linaro.org <mailto:manjunath.goudar@linaro.org> <mailto:manjunath.goudar at linaro.org <mailto:manjunath.goudar@linaro.org>>> wrote:
    >     > From: root <root at si-cspbld63.lge.net <mailto:root@si-cspbld63.lge.net> <mailto:root at si-cspbld63.lge.net <mailto:root@si-cspbld63.lge.net>>>
    >
    >     :)
    >
    >     > This patch adds a Kconfig dependency on MACH_KS8695,MACH_CM* or MACH_IM*
    >     > being available before PCI can be enabled. Without this patch,build system
    >
    >     Add Space after ','
    >
    >     > can lead to issues. This was discovered during randconfig testing,
    >     > without PCI if any one of MACH_KS8695,MACH_CM* or MACH_IM* being enabled,
    >
    >     Same here.
    >
    >     > leading to the following error:
    >     >
    >     > LD      init/built-in.o
    >     > arch/arm/mach-ks8695/built-in.o: In function `og_register_pci':
    >     > arch/arm/mach-ks8695/board-og.c:47:undefined reference to `ks8695_init_pci'
    >     > make: *** [vmlinux] Error 1
    >     >
    >     > Signed-off-by: Manjunath Goudar <manjunath.goudar at linaro.org <mailto:manjunath.goudar@linaro.org> <mailto:manjunath.goudar at linaro.org <mailto:manjunath.goudar@linaro.org>>>
    >     > Cc: Arnd Bergmann <arnd at arndb.de <mailto:arnd@arndb.de> <mailto:arnd at arndb.de <mailto:arnd@arndb.de>>>
    >     > Cc: Deepak Saxena <dsaxena at linaro.org <mailto:dsaxena@linaro.org> <mailto:dsaxena at linaro.org <mailto:dsaxena@linaro.org>>>
    >     > Cc: Greg Ungerer <gerg at uclinux.org <mailto:gerg@uclinux.org> <mailto:gerg at uclinux.org <mailto:gerg@uclinux.org>>>
    >     > Cc: linux-arm-kernel at lists.infradead.org <mailto:linux-arm-kernel@lists.infradead.org> <mailto:linux-arm-kernel at lists.infradead.org <mailto:linux-arm-kernel@lists.infradead.org>>
    >     > ---
    >     >  arch/arm/mach-ks8695/Kconfig | 5 +++++
    >     >  1 file changed, 5 insertions(+)
    >     >
    >     > diff --git a/arch/arm/mach-ks8695/Kconfig b/arch/arm/mach-ks8695/Kconfig
    >     > index a545976..29d7d9f 100644
    >     > --- a/arch/arm/mach-ks8695/Kconfig
    >     > +++ b/arch/arm/mach-ks8695/Kconfig
    >     > @@ -5,6 +5,7 @@ menu "Kendin/Micrel KS8695 Implementations"
    >     >  config MACH_KS8695
    >     >         bool "KS8695 development board"
    >     >         select MIGHT_HAVE_PCI
    >     > +       depends on PCI
    >
    >     You need both PCI and MIGHT_HAVE_PCI? Don't know but it looks
    >     like defconfig is missing PCI stuff.. and MIGHT_HAVE_PCI is enough
    >     here?
    >
    >
    >  PCI is needed here because board-og.c file depends on pci.o.

    It shouldn't though, thus the original use of MIGHT_HAVE_PCI.
    The board-og.c machine code supports a number of boards, some of
    which don't have a PCI bus (that is they use the KS8695 CPU that
    doesn't contain the PCI bus silicon).

    I think you want a fix that makes the pci support code in this file
    conditional on CONFIG_PCI.

You are suggesting me,as below

 +#ifdef CONFIG_PCI      
        ks8695_init_pci(&og_pci);
+#endif

Yes, in this case I think you will need something like this.

Regards
Greg