[PATCH kexec-tools] arm: do not build iomem.o target with no soruce

[Simon Horman]

On Fri, Dec 09, 2016 at 03:58:21PM +0530, Pratyush Anand wrote:
> 
> 
> On Friday 09 December 2016 02:42 PM, Simon Horman wrote:
> >Header files should be added to the distribution but not
> >used to derive targets for compilation. In this an attempt was
> >made to build iomem.o, but iomem.c does not exist so this fails.
> >
> >Fixes: 1574ff1aae4f ("arm: include phys_to_virt.h and iomem.h in distribution")
> >Cc: Dave Young <dyoung at redhat.com>
> >Signed-off-by: Simon Horman <horms at verge.net.au>
> >---
> > kexec/arch/arm/Makefile | 8 ++++----
> > 1 file changed, 4 insertions(+), 4 deletions(-)
> >
> >diff --git a/kexec/arch/arm/Makefile b/kexec/arch/arm/Makefile
> >index 871979e0ae26..a1b730034de8 100644
> >--- a/kexec/arch/arm/Makefile
> >+++ b/kexec/arch/arm/Makefile
> >@@ -27,9 +27,9 @@ arm_KEXEC_SRCS += $(libfdt_SRCS)
> >
> > arm_UIMAGE = kexec/kexec-uImage.c
> > arm_PHYS_TO_VIRT = kexec/arch/arm/phys_to_virt.c
> >-arm_PHYS_TO_VIRT += kexec/arch/arm/iomem.h
> >-arm_PHYS_TO_VIRT += kexec/arch/arm/phys_to_virt.h
> >+arm_PHYS_TO_VIRT_INCLUDE = kexec/arch/arm/iomem.h
> >+arm_PHYS_TO_VIRT_INCLUDE += kexec/arch/arm/phys_to_virt.h
> 
> Since they are needed only in dist definition, so probably we could have
> avoided to define arm_PHYS_TO_VIRT_INCLUDE  and could have added these files
> directly to dist. It will keep it similar like other makefiles
> (kexec/arch/x86_64/Makefile)
> 
> >
> > dist += kexec/arch/arm/Makefile $(arm_KEXEC_SRCS) $(arm_PHYS_TO_VIRT)	\
> >-	kexec/arch/arm/crashdump-arm.h kexec/arch/arm/kexec-arm.h	\
> >-	kexec/arch/arm/include/arch/options.h
> >+	$(arm_PHYS_TO_VIRT_INCLUDE) kexec/arch/arm/crashdump-arm.h \
> >+	kexec/arch/arm/kexec-arm.h kexec/arch/arm/include/arch/options.h
> >
> 
> Otherwise, changes looks fine to me.

Thanks, I will post a v2.