linux-kernel - Re: [PATCH v3 5/6] mfd: ahc1ec0-hwmon: Add sub-device hwmon for Advantech embedded controller

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Date:   Tue, 3 Nov 2020 08:43:38 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     AceLan Kao <chia-lin.kao@...onical.com>
Cc:     Shihlun Lin <shihlun.lin@...antech.com.tw>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Rob Herring <robh@...nel.org>,
        "Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
        devicetree@...r.kernel.org,
        Campion Kang <campion.kang@...antech.com.tw>
Subject: Re: [PATCH v3 5/6] mfd: ahc1ec0-hwmon: Add sub-device hwmon for
 Advantech embedded controller

On Tue, 03 Nov 2020, Lee Jones wrote:

> On Tue, 03 Nov 2020, AceLan Kao wrote:
> 
> > Hi Lee,
> > 
> > One question for you.
> > 
> > Lee Jones <lee.jones@...aro.org> 於 2020年10月29日 週四 下午9:14寫道：
> > >
> > > On Thu, 29 Oct 2020, Shihlun Lin wrote:
> > >
> > > > This is one of sub-device driver for Advantech embedded controller
> > > > AHC1EC0. This driver provides sysfs ABI for Advantech related
> > > > applications to monitor the system status.
> > > >
> > > > Signed-off-by: Shihlun Lin <shihlun.lin@...antech.com.tw>
> > > > Reported-by: kernel test robot <lkp@...el.com>
> > >
> > > LKP reported that your driver needed upstreaming?
> > >
> > > I'm confused!
> > >
> > > > ---
> > > >  drivers/mfd/Kconfig         |    8 +
> > > >  drivers/mfd/Makefile        |    1 +
> > > >  drivers/mfd/ahc1ec0-hwmon.c | 1514 +++++++++++++++++++++++++++++++++++
> > >
> > > This obviously belongs in drivers/hwmon.
> > >
> > > >  3 files changed, 1523 insertions(+)
> > > >  create mode 100644 drivers/mfd/ahc1ec0-hwmon.c
> > > >
> > > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> > > > index 965bcafbe5b2..52ca49b211fc 100644
> > > > --- a/drivers/mfd/Kconfig
> > > > +++ b/drivers/mfd/Kconfig
> > > > @@ -2175,5 +2175,13 @@ config MFD_AHC1EC0
> > > >         provides expose functions for sub-devices to read/write the value
> > > >         to embedded controller.
> > > >
> > > > +config MFD_AHC1EC0_HWMON
> > > > +     tristate "Advantech EC Hareware Monitor Function"
> > > > +     depends on MFD_AHC1EC0
> > > > +     help
> > > > +       This is sub-device for Advantech embedded controller AHC1EC0. This
> > > > +       driver provides the sysfs attribues for applications to monitor
> > > > +       the system status.
> > > > +
> > > >  endmenu
> > > >  endif
> > > > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> > > > index 80a9a2bdc3ba..eb645db817b5 100644
> > > > --- a/drivers/mfd/Makefile
> > > > +++ b/drivers/mfd/Makefile
> > > > @@ -269,3 +269,4 @@ obj-$(CONFIG_MFD_SIMPLE_MFD_I2C)  += simple-mfd-i2c.o
> > > >  obj-$(CONFIG_MFD_INTEL_M10_BMC)   += intel-m10-bmc.o
> > > >
> > > >  obj-$(CONFIG_MFD_AHC1EC0)    += ahc1ec0.o
> > > > +obj-$(CONFIG_MFD_AHC1EC0_HWMON)      += ahc1ec0-hwmon.o
> > > > diff --git a/drivers/mfd/ahc1ec0-hwmon.c b/drivers/mfd/ahc1ec0-hwmon.c
> > > > new file mode 100644
> > > > index 000000000000..3e493b040b4a
> > > > --- /dev/null
> > > > +++ b/drivers/mfd/ahc1ec0-hwmon.c
> > > > @@ -0,0 +1,1514 @@
> > > > +// SPDX-License-Identifier: GPL-2.0-only
> > > > +/*****************************************************************************
> > > > + * Copyright (c) 2018, Advantech Automation Corp.
> > >
> > > You can't just lift a whole driver from downstream code and send it to
> > > the mailing list as-is.
> > Could you elaborate more about which part should be fixed, and how it
> > should look like?
> 
> Frankly, no.
> 
> I would expect a contributor of a several thousand line patch-set to
> at least read the documentation and adhere to it prior to anyone
> conducting a full review.  Simply plucking a very old driver set from
> a BSP kernel and dumping it on the upstream mailing list is not the
> way to gain the right kind of attention.
> 
> At the very least (this is not an exhaustive list);
> 
> - all of the copyrights need to be up-to-date
> - the drivers need to be located in their correct subsystems
> - any internal references/comment headers need to be removed
> - licences should be compatible with upstreaming
> - hacks removed
> - builds without errors or warnings
> - checkpatch.pl passed
> - submission should tick all of the boxes in SubmittingPatches
> - removal of changelogs/versions
>   - this is the first version as far as the kernel is concerned

Also spell-check.  Literally the 2nd line:

 config MFD_AHC1EC0_HWMON
      tristate "Advantech EC Hareware Monitor Function"

I don't know what Hareware is, but is sounds fast! ;)

> > > > + * THIS IS AN UNPUBLISHED WORK CONTAINING CONFIDENTIAL AND PROPRIETARY
> > > > + * INFORMATION WHICH IS THE PROPERTY OF ADVANTECH AUTOMATION CORP.
> > > > + *
> > > > + * ANY DISCLOSURE, USE, OR REPRODUCTION, WITHOUT WRITTEN AUTHORIZATION FROM
> > > > + * ADVANTECH AUTOMATION CORP., IS STRICTLY PROHIBITED.
> > > > + *****************************************************************************
> > >
> > > This warning is in contradiction to the licence you are proposing.
> > >
> 

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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