Re: [PATCH 6/8] media: uniphier: add common module of DVB adapter drivers

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Hello Yamada-san,

> -----Original Message-----
> From: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
> Sent: Monday, June 4, 2018 9:53 AM
> To: Suzuki, Katsuhiro/鈴木 勝博 <suzuki.katsuhiro@xxxxxxxxxxxxx>
> Cc: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>;
> linux-media@xxxxxxxxxxxxxxx; Masami Hiramatsu <masami.hiramatsu@xxxxxxxxxx>;
> Jassi Brar <jaswinder.singh@xxxxxxxxxx>; linux-arm-kernel
> <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>; Linux Kernel Mailing List
> <linux-kernel@xxxxxxxxxxxxxxx>
> Subject: Re: [PATCH 6/8] media: uniphier: add common module of DVB adapter drivers
> 
> 2018-06-04 9:08 GMT+09:00 Katsuhiro Suzuki <suzuki.katsuhiro@xxxxxxxxxxxxx>:
> > Hello Yamada-san,
> >
> >> -----Original Message-----
> >> From: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
> >> Sent: Saturday, June 2, 2018 9:00 PM
> >> To: Suzuki, Katsuhiro/鈴木 勝博 <suzuki.katsuhiro@xxxxxxxxxxxxx>
> >> Cc: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>;
> >> linux-media@xxxxxxxxxxxxxxx; Masami Hiramatsu <masami.hiramatsu@xxxxxxxxxx>;
> >> Jassi Brar <jaswinder.singh@xxxxxxxxxx>; linux-arm-kernel
> >> <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>; Linux Kernel Mailing List
> >> <linux-kernel@xxxxxxxxxxxxxxx>
> >> Subject: Re: [PATCH 6/8] media: uniphier: add common module of DVB adapter drivers
> >>
> >> 2018-05-30 18:09 GMT+09:00 Katsuhiro Suzuki <suzuki.katsuhiro@xxxxxxxxxxxxx>:
> >> > This patch adds common module for UniPhier DVB adapter drivers
> >> > that equipments tuners and demod that connected by I2C and
> >> > UniPhier demux.
> >> >
> >> > Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@xxxxxxxxxxxxx>
> >> > ---
> >> >  drivers/media/platform/uniphier/Makefile      |  5 ++
> >> >  drivers/media/platform/uniphier/hsc-core.c    |  8 ---
> >> >  .../platform/uniphier/uniphier-adapter.c      | 54 +++++++++++++++++++
> >> >  .../platform/uniphier/uniphier-adapter.h      | 42 +++++++++++++++
> >> >  4 files changed, 101 insertions(+), 8 deletions(-)
> >> >  create mode 100644 drivers/media/platform/uniphier/uniphier-adapter.c
> >> >  create mode 100644 drivers/media/platform/uniphier/uniphier-adapter.h
> >> >
> >> > diff --git a/drivers/media/platform/uniphier/Makefile
> >> b/drivers/media/platform/uniphier/Makefile
> >> > index 0622f04d9e68..9e75ad081b77 100644
> >> > --- a/drivers/media/platform/uniphier/Makefile
> >> > +++ b/drivers/media/platform/uniphier/Makefile
> >> > @@ -3,3 +3,8 @@ uniphier-dvb-y += hsc-core.o hsc-ucode.o hsc-css.o hsc-ts.o
> >> hsc-dma.o
> >> >  uniphier-dvb-$(CONFIG_DVB_UNIPHIER_LD11) += hsc-ld11.o
> >> >
> >> >  obj-$(CONFIG_DVB_UNIPHIER) += uniphier-dvb.o
> >> > +
> >> > +ccflags-y += -Idrivers/media/dvb-frontends/
> >> > +ccflags-y += -Idrivers/media/tuners/
> >>
> >>
> >> Please add $(srctree)/ like
> >>
> >> ccflags-y += -I$(srctree)/drivers/media/dvb-frontends/
> >> ccflags-y += -I$(srctree)/drivers/media/tuners/
> >>
> >>
> >> Currently, it works $(srctree)/,
> >> but I really want to rip off the build system hack.
> >
> > Thanks, I agree with your opinion, but other Makefiles in drivers/media use
> > same hack. I don't know other way to include headers of demodulators and
> > tuners...
> >
> > Do you have any good ideas?
> >
> >
> 
> 
> My suggestion is to add '$(srctree)/'.
> 
> For clarification,
> 
> 
> 
> Bad:
> 
> ccflags-y += -Idrivers/media/dvb-frontends/
> ccflags-y += -Idrivers/media/tuners/
> 
> 
> 
> Good:
> 
> ccflags-y += -I$(srctree)/drivers/media/dvb-frontends/
> ccflags-y += -I$(srctree)/drivers/media/tuners/
> 
> 

OK, I understand.


> 
> 
> 
> I want to fix this tree-wide,
> then remove the 'addtree' from scripts/Kbuild.include
> but I have not been able to find time for that.
> 
> This is a new file, so just suggested to add '$(srctree)/'
> 
> 
> 
> If you want to know the context:
> https://patchwork.kernel.org/patch/9632347/
> 

Thank you, that's interesting issue...


Regards,
--
Katsuhiro Suzuki


> 
> --
> Best Regards
> Masahiro Yamada





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