linux-kernel - Re: 答复: [PATCH 1/2] misc: rtsx: Move Realtek Card Reader Driver to misc

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Date:   Wed, 25 Oct 2017 10:16:45 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     冯锐 <rui_feng@...lsil.com.cn>
Cc:     "arnd@...db.de" <arnd@...db.de>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "ricky_wu@...ltek.com" <ricky_wu@...ltek.com>
Subject: Re: 答复: [PATCH 1/2] misc: rtsx:
 Move Realtek Card Reader Driver to misc

On Wed, 25 Oct 2017, 冯锐 wrote:

> > On Wed, 25 Oct 2017, rui_feng@...lsil.com.cn wrote:
> > 
> > > From: rui_feng <rui_feng@...lsil.com.cn>
> > >
> > > Because Realtek PCIE card reader driver is a pcie driver, and it
> > > bridges mmc subsystem and memstick subsystem, it's not a mfd driver.
> > > Greg and Lee Jones had a discussion about where to put the driver, the
> > > result is that misc is a good place for it, so I move all files to
> > > misc. If I don't move it to a right place, I can't add any patch for
> > > this driver.
> > >
> > > Signed-off-by: Rui Feng <rui_feng@...lsil.com.cn>
> > > Acked-by: Arnd Bergmann <arnd@...db.de>
> > > ---
> > >  drivers/memstick/host/rtsx_pci_ms.c      |  2 +-
> > >  drivers/mfd/Kconfig                      | 11 -----------
> > >  drivers/mfd/Makefile                     |  2 --
> > >  drivers/misc/Kconfig                     |  1 +
> > >  drivers/misc/Makefile                    |  1 +
> > >  drivers/misc/realtek/Kconfig             | 10 ++++++++++
> > >  drivers/misc/realtek/Makefile            |  3 +++
> > >  drivers/{mfd => misc/realtek}/rtl8411.c  |  1 -  drivers/{mfd =>
> > > misc/realtek}/rts5209.c  |  1 -  drivers/{mfd =>
> > > misc/realtek}/rts5227.c  |  1 -  drivers/{mfd =>
> > > misc/realtek}/rts5229.c  |  1 -  drivers/{mfd =>
> > > misc/realtek}/rts5249.c  |  2 --  drivers/{mfd =>
> > > misc/realtek}/rtsx_pcr.c |  1 -  drivers/{mfd =>
> > > misc/realtek}/rtsx_pcr.h |  2 +-
> > >  drivers/mmc/host/rtsx_pci_sdmmc.c        |  2 +-
> > >  include/linux/{mfd => }/rtsx_common.h    |  0
> > >  include/linux/{mfd => }/rtsx_pci.h       |  0
> > >  17 files changed, 18 insertions(+), 23 deletions(-)  create mode
> > > 100644 drivers/misc/realtek/Kconfig  create mode 100644
> > > drivers/misc/realtek/Makefile  rename drivers/{mfd =>
> > > misc/realtek}/rtl8411.c (99%)  rename drivers/{mfd =>
> > > misc/realtek}/rts5209.c (99%)  rename drivers/{mfd =>
> > > misc/realtek}/rts5227.c (99%)  rename drivers/{mfd =>
> > > misc/realtek}/rts5229.c (99%)  rename drivers/{mfd =>
> > > misc/realtek}/rts5249.c (99%)  rename drivers/{mfd =>
> > > misc/realtek}/rtsx_pcr.c (99%)  rename drivers/{mfd =>
> > > misc/realtek}/rtsx_pcr.h (99%)  rename include/linux/{mfd =>
> > > }/rtsx_common.h (100%)  rename include/linux/{mfd => }/rtsx_pci.h
> > > (100%)

[...]

> > > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index
> > > c3d0a1b..5398aca 100644
> > > --- a/drivers/mfd/Makefile
> > > +++ b/drivers/mfd/Makefile
> > > @@ -18,8 +18,6 @@ obj-$(CONFIG_MFD_CROS_EC_I2C)	+=
> > cros_ec_i2c.o
> > >  obj-$(CONFIG_MFD_CROS_EC_SPI)	+= cros_ec_spi.o
> > >  obj-$(CONFIG_MFD_EXYNOS_LPASS)	+= exynos-lpass.o
> > >
> > > -rtsx_pci-objs			:= rtsx_pcr.o rts5209.o rts5229.o rtl8411.o
> > rts5227.o rts5249.o
> > > -obj-$(CONFIG_MFD_RTSX_PCI)	+= rtsx_pci.o
> > >  obj-$(CONFIG_MFD_RTSX_USB)	+= rtsx_usb.o
> > 
> > Why have you chosen not to move *all* rtsx drivers?
> > 
> Maybe move the usb driver to misc in another patch is better?

I don't see why it's better, but as long as it gets done.

[...]

> > > diff --git a/drivers/mfd/rtl8411.c b/drivers/misc/realtek/rtl8411.c
> > > similarity index 99% rename from drivers/mfd/rtl8411.c rename to
> > > drivers/misc/realtek/rtl8411.c index b3ae659..aba05ad 100644
> > > --- a/drivers/mfd/rtl8411.c
> > > +++ b/drivers/misc/realtek/rtl8411.c
> > > @@ -23,7 +23,6 @@
> > >  #include <linux/module.h>
> > >  #include <linux/bitops.h>
> > >  #include <linux/delay.h>
> > > -#include <linux/mfd/rtsx_pci.h>
> > 
> > Didn't you move this to:
> > 
> > <include>/linux/rtsx_pci.h
> > 
> Because "rtsx_pcr.h" has include /linux/rtsx_pci.h, so no need to include /linux/rtsx_pci.h twice.

You should explicitly include header files.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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