linux-kernel - Re: [PATCH 1/5] media: platform: Add DesignWare MIPI CSI2 Host placeholder

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Date:   Sat, 15 Sep 2018 20:16:01 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Luis Oliveira <Luis.Oliveira@...opsys.com>
Cc:     kbuild-all@...org, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org, all-jpinto-org-pt02@...opsys.com,
        Luis Oliveira <Luis.Oliveira@...opsys.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
        Arnd Bergmann <arnd@...db.de>,
        Jacob Chen <jacob-chen@...wrt.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Keiichi Watanabe <keiichiw@...omium.org>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Todor Tomov <todor.tomov@...aro.org>
Subject: Re: [PATCH 1/5] media: platform: Add DesignWare MIPI CSI2 Host
 placeholder

Hi Luis,

I love your patch! Yet something to improve:

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on v4.19-rc3 next-20180913]
[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/Luis-Oliveira/media-platform-Add-DesignWare-MIPI-CSI2-Host-placeholder/20180915-163514
base:   git://linuxtv.org/media_tree.git master
config: i386-randconfig-s2-201836-CONFIG_DEBUG_INFO_REDUCED (attached as .config)
compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

Note: the linux-review/Luis-Oliveira/media-platform-Add-DesignWare-MIPI-CSI2-Host-placeholder/20180915-163514 HEAD 2381c016179252d3b126e055b21edaef9ae5e1e2 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

>> scripts/Makefile.build:45: drivers/media/platform/dwc/Makefile: No such file or directory
>> make[5]: *** No rule to make target 'drivers/media/platform/dwc/Makefile'.
   make[5]: Failed to remake makefile 'drivers/media/platform/dwc/Makefile'.

vim +45 scripts/Makefile.build

0c53c8e6 Sam Ravnborg   2007-10-14  41  
2a691470 Sam Ravnborg   2005-07-25  42  # The filename Kbuild has precedence over Makefile
db8c1a7b Sam Ravnborg   2005-07-27  43  kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
0c53c8e6 Sam Ravnborg   2007-10-14  44  kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
0c53c8e6 Sam Ravnborg   2007-10-14 @45  include $(kbuild-file)
^1da177e Linus Torvalds 2005-04-16  46  

:::::: The code at line 45 was first introduced by commit
:::::: 0c53c8e6eb456cde30f2305421c605713856abc8 kbuild: check for wrong use of CFLAGS

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

---
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