Re: [PATCH 5/7] riscv: dts: add initial support for the SiFive FU540-C000 SoC

[kbuild test robot]

Hi Paul,

I love your patch! Yet something to improve:

[auto build test ERROR on robh/for-next]
[also build test ERROR on v4.20-rc6 next-20181214]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Paul-Walmsley/arch-riscv-add-DT-file-support-starting-with-the-SiFive-HiFive-U/20181216-103926
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: riscv-tinyconfig (attached as .config)
compiler: riscv64-linux-gcc (GCC) 8.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=8.1.0 make.cross ARCH=riscv 

Note: the linux-review/Paul-Walmsley/arch-riscv-add-DT-file-support-starting-with-the-SiFive-HiFive-U/20181216-103926 HEAD bd72c6c6fec694776fceb1c4f4cf7c6415a6e8e3 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

>> scripts/Makefile.build:42: arch/riscv/boot/dts/Makefile: No such file or directory
>> make[2]: *** No rule to make target 'arch/riscv/boot/dts/Makefile'.
   make[2]: Failed to remake makefile 'arch/riscv/boot/dts/Makefile'.

vim +42 scripts/Makefile.build

20a468b51 Sam Ravnborg   2006-01-22  38  
2a6914703 Sam Ravnborg   2005-07-25  39  # The filename Kbuild has precedence over Makefile
db8c1a7b2 Sam Ravnborg   2005-07-27  40  kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
0c53c8e6e Sam Ravnborg   2007-10-14  41  kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
0c53c8e6e Sam Ravnborg   2007-10-14 @42  include $(kbuild-file)
^1da177e4 Linus Torvalds 2005-04-16  43  

:::::: The code at line 42 was first introduced by commit
:::::: 0c53c8e6eb456cde30f2305421c605713856abc8 kbuild: check for wrong use of CFLAGS

:::::: TO: Sam Ravnborg <sam@neptun.(none)>
:::::: CC: Sam Ravnborg <sam@neptun.(none)>

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