linux-kernel - Re: HOW TO MAKE SAMPLES DIR IN THE MAINLINE KERNEL TO BE COMPILED AND CREATED ".KO" FILE IN THE SAME DIRECTORY

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Date:	Thu, 20 Aug 2015 05:20:22 -0500
From:	Yakir Yang <ykk@...k-chips.com>
To:	ravi ranjan Mishra <raviranjanmishra24@...il.com>,
	linux-arm-kernel@...ts.infradead.org, seanpaul@...gle.com,
	Takashi Iwai <tiwai@...e.de>, dri-devel@...ts.freedesktop.org,
	Andrzej Hajda <a.hajda@...sung.com>,
	Gustavo Padovan <gustavo.padovan@...labora.co.uk>,
	linux-samsung-soc@...r.kernel.org,
	Vincent Palatin <vpalatin@...omium.org>,
	linux-rockchip@...ts.infradead.org,
	Kishon Vijay Abraham I <kishon@...com>,
	David Airlie <airlied@...ux.ie>, devicetree@...r.kernel.org,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	dianders@...gle.com, Rob Herring <robh+dt@...nel.org>,
	Mark Yao <mark.yao@...k-chips.com>,
	linux-kernel@...r.kernel.org,
	Kyungmin Park <kyungmin.park@...sung.com>, djkurtz@...gle.com,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Kumar Gala <galak@...eaurora.org>, ajaynumb@...il.com,
	Andy Yan <andy.yan@...k-chips.com>
Subject: Re: HOW TO MAKE SAMPLES DIR IN THE MAINLINE KERNEL TO BE COMPILED
 AND CREATED ".KO" FILE IN THE SAME DIRECTORY

Hi Ravi,

I'm wondering is your e-mail come from eDP thread ? cause I see lots of 
cc guys some as eDP emails :)

And for your question, I am not sure I understand rightly. Do you mean 
that your ".ko" module not in
the same directory with driver source code?

If it's your question, I think you can fix it by add SUBDIRS flag in 
your driver makefile.
I test it on kernel 3.14, but I think it would be okay on mainline 
kernel, it works good
in my side, I see hello.ko in my hello/

[~/work/kernel-3.14/hello] 7392h41m $ ls
hello.c  hello.ko  hello.mod.c  hello.mod.o  hello.o  Makefile 
modules.order  Module.symvers

# My test makefile
obj-m := hello.o

KERNEL_DIR := ~/work/kernel-3.14
PWD := $(shell pwd)

all:
     make -C $(KERNEL_DIR) SUBDIRS=$(PWD) modules

clean:
     rm *.o *.ko *.mod.c

.PHONY:clean


Wish can help,
- Yakir

On 08/20/2015 03:45 AM, ravi ranjan Mishra wrote:
> Hi ,
>
> i did make in the kernel directory but sample directory is not able to 
> compiled and generating .ko file in the same directory.
>
> can you please tell.
>
> Thanks,
> Ravi


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