linux-kernel - RE: [char-misc:char-misc-testing 20/24] kismet: WARNING: unmet direct dependencies detected for GPIOLIB_IRQCHIP when selected by GP

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Date:   Mon, 5 Sep 2022 11:56:45 +0000
From:   <Kumaravel.Thiagarajan@...rochip.com>
To:     <geert@...ux-m68k.org>
CC:     <gregkh@...uxfoundation.org>, <lkp@...el.com>, <paul@...zz.com>,
        <fazilyildiran@...il.com>, <kbuild-all@...ts.01.org>,
        <linux-kernel@...r.kernel.org>
Subject: RE: [char-misc:char-misc-testing 20/24] kismet: WARNING: unmet direct
 dependencies detected for GPIOLIB_IRQCHIP when selected by GP_PCI1XXXX

> -----Original Message-----
> From: Geert Uytterhoeven <geert@...ux-m68k.org>
> Sent: Monday, September 5, 2022 1:21 PM
> To: Kumaravel Thiagarajan - I21417 <Kumaravel.Thiagarajan@...rochip.com>
> Cc: Greg KH <gregkh@...uxfoundation.org>; kbuild test robot
> <lkp@...el.com>; paul@...zz.com; fazilyildiran@...il.com; kbuild-
> all@...ts.01.org; Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
> Subject: Re: [char-misc:char-misc-testing 20/24] kismet: WARNING: unmet
> direct dependencies detected for GPIOLIB_IRQCHIP when selected by
> GP_PCI1XXXX
> 
> 
> Hi Kumaravel,
> 
> On Sat, Sep 3, 2022 at 12:29 PM <Kumaravel.Thiagarajan@...rochip.com>
> wrote:
> > > -----Original Message-----
> > > From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > > Sent: Saturday, September 3, 2022 12:40 PM
> > > To: kernel test robot <lkp@...el.com>; Kumaravel Thiagarajan -
> > > I21417 <Kumaravel.Thiagarajan@...rochip.com>; Paul Gazzillo
> > > <paul@...zz.com>; Necip Fazil Yildiran <fazilyildiran@...il.com>;
> > > kbuild-all@...ts.01.org; linux- kernel@...r.kernel.org
> > > Subject: Re: [char-misc:char-misc-testing 20/24] kismet: WARNING:
> > > unmet direct dependencies detected for GPIOLIB_IRQCHIP when
> selected
> > > by GP_PCI1XXXX
> > >
> > > EXTERNAL EMAIL: Do not click links or open attachments unless you
> > > know the content is safe
> > >
> > > On Sat, Sep 03, 2022 at 02:12:13PM +0800, kernel test robot wrote:
> > > > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-
> > > misc.git char-misc-testing
> > > > head:   4ec7ac90ff399b7d9af81cc8afd430a22786c61b
> > > > commit: 393fc2f5948fd340d016a9557eea6e1ac2f6c60c [20/24] misc:
> > > microchip: pci1xxxx: load auxiliary bus driver for the PIO function
> > > in the multi- function endpoint of pci1xxxx device.
> > > > config: x86_64-kismet-CONFIG_GPIOLIB_IRQCHIP-
> CONFIG_GP_PCI1XXXX-
> > > 0-0
> > > > (https://download.01.org/0day-
> > > ci/archive/20220903/202209031414.Y8YCEjm
> > > > I-lkp@...el.com/config)
> > > > reproduce:
> > > >         #
> > > > https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-
> > > misc.git/commit/?id=393fc2f5948fd340d016a9557eea6e1ac2f6c60c
> > > >         git remote add char-misc
> > > https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
> > > >         git fetch --no-tags char-misc char-misc-testing
> > > >         git checkout 393fc2f5948fd340d016a9557eea6e1ac2f6c60c
> > > >         # 1. reproduce by kismet
> > > >            # install kmax per
> > > https://github.com/paulgazz/kmax/blob/master/README.md
> > > >            kismet --linux-ksrc=linux --selectees
> > > > CONFIG_GPIOLIB_IRQCHIP --
> > > selectors CONFIG_GP_PCI1XXXX -a=x86_64
> > > >         # 2. reproduce by make
> > > >            # save the config file to linux source tree
> > > >            cd linux
> > > >            make ARCH=x86_64 olddefconfig
> > > >
> > > > If you fix the issue, kindly add following tag where applicable
> > > > Reported-by: kernel test robot <lkp@...el.com>
> > > >
> > > > kismet warnings: (new ones prefixed by >>)
> > > > >> kismet: WARNING: unmet direct dependencies detected for
> > > > >> GPIOLIB_IRQCHIP when selected by GP_PCI1XXXX
> > > >
> > > >    WARNING: unmet direct dependencies detected for
> GPIOLIB_IRQCHIP
> > > >      Depends on [n]: GPIOLIB [=n]
> > > >      Selected by [y]:
> > > >      - GP_PCI1XXXX [=y] && PCI [=y]
> > >
> > > Ick, I missed this before in review.  Kumaravel, any chance you can
> > > make this a "depends" issue instead of a select one?
> >
> > Greg, can I select both GPIOLIB & GPIOLIB_IRQCHIP like below?
> >
> > config GP_PCI1XXXX
> >        tristate "Microchip PCI1XXXX PCIe to GPIO Expander + OTP/EEPROM
> manager"
> >        depends on PCI
> >        select GPIOLIB
> >        select GPIOLIB_IRQCHIP
> >        help
> >          PCI1XXXX is a PCIe GEN 3 switch with one of the endpoints having
> >          multiple functions and one of the functions is a GPIO controller
> >          which also has registers to interface with the OTP and EEPROM.
> >          Select yes, no or module here to include or exclude the driver
> >          for the GPIO function.
> >
> > or replace "select GPIOLIB_IRQCHIP" with "depends on GPIOLIB_IRQCHIP"
> like you mentioned?
> >
> > Please advise.
> 
> I think you want to use
> 
>     depends on GPIOLIB
>     select GPIOLIB_IRQCHIP
> 
> The former is a visible symbol, under full user control.
> The latter is an invisible symbol, to be selected by drivers that need it.

Thank You Geert ! This solves the problem.

Thank You.

Regards,
Kumaravel