error thrown when updating kernel config

[Dan Horák]

Hi,

I'm in the process to reduce the Fedora s390x kernel's size and build
time by disabling drivers for devices that can't appear on the
mainframe. But I'm getting 2 kinds of errors

first is
...
+ echo '# s390'
+ cat .config
+ CheckConfigs configs/kernel-4.11.0-s390x.config temp-kernel-4.11.0-s390x.config
+ ./check_configs.awk configs/kernel-4.11.0-s390x.config temp-kernel-4.11.0-s390x.config
+ '[' -s .mismatches ']'
+ echo 'Error: Mismatches found in configuration files'
Error: Mismatches found in configuration files
+ cat .mismatches
Found # CONFIG_HID is not set, after generation, had CONFIG_HID m in Fedora tree
Found # CONFIG_HWMON is not set, after generation, had CONFIG_HWMON m in Fedora tree
Found # CONFIG_I2C is not set, after generation, had CONFIG_I2C m in Fedora tree
Found # CONFIG_NEW_LEDS is not set, after generation, had CONFIG_NEW_LEDS y in Fedora tree
+ exit 1

This is after setting the options ^^^ to "N" in their files under
baseconfig/s390x/.

the second one is
...
+ rm temp-kernel-4.11.0-ppc64p7.config
+ for i in '*.config'
+ cat kernel-4.11.0-s390x.config
+ mv kernel-4.11.0-s390x.config .config
++ head -1 .config
++ cut -b 3-
+ Arch=s390
+ make ARCH=s390 listnewconfig
+ grep -E '^CONFIG_'
+ '[' -s .newoptions ']'
+ cat .newoptions
CONFIG_RESET_CONTROLLER
+ exit 1

This is after disabling all Ethernet drivers (drivers/net/ethernet)
except Mellanox

What am I doing wrong or what else I must change?

Dan

[Laura Abbott]

On 02/23/2017 06:43 AM, Dan Horák wrote:
> Hi,
>
> I'm in the process to reduce the Fedora s390x kernel's size and build
> time by disabling drivers for devices that can't appear on the
> mainframe. But I'm getting 2 kinds of errors
>
> first is
> ...
> echo '# s390'
> cat .config
> CheckConfigs configs/kernel-4.11.0-s390x.config temp-kernel-4.11.0-s390x.config
> ./check_configs.awk configs/kernel-4.11.0-s390x.config temp-kernel-4.11.0-s390x.config
> '[' -s .mismatches ']'
> echo 'Error: Mismatches found in configuration files'
>
> Error: Mismatches found in configuration files
> cat .mismatches
>
> Found # CONFIG_HID is not set, after generation, had CONFIG_HID m in Fedora tree
> Found # CONFIG_HWMON is not set, after generation, had CONFIG_HWMON m in Fedora tree
> Found # CONFIG_I2C is not set, after generation, had CONFIG_I2C m in Fedora tree
> Found # CONFIG_NEW_LEDS is not set, after generation, had CONFIG_NEW_LEDS y in Fedora tree
> exit 1
>
> This is after setting the options ^^^ to "N" in their files under
> baseconfig/s390x/.

This is a check designed to make sure that what we specify in the Fedora
configurations match what is generated via Kconfig. The output
is stating that the Fedora tree has (e.g.) CONFIG_HID=m set but when
run against the kernel configuration generation it comes out as
# CONFIG_HID is not set. The easiest way to fix this is to make
all those options match whatever is being generated (so mark all
those options not set)
> the second one is
> ...
> rm temp-kernel-4.11.0-ppc64p7.config
> for i in '*.config'
> cat kernel-4.11.0-s390x.config
> mv kernel-4.11.0-s390x.config .config
>
> ++ head -1 .config
> ++ cut -b 3-
> Arch=s390
> make ARCH=s390 listnewconfig
> grep -E '^CONFIG_'
> '[' -s .newoptions ']'
> cat .newoptions
>
> CONFIG_RESET_CONTROLLER
> exit 1

This is saying that CONFIG_RESET_CONTROLLER isn't specified
as a Kconfig value for s390x. You need to explicitly set it.

Thanks,
Laura
> This is after disabling all Ethernet drivers (drivers/net/ethernet)
> except Mellanox
>
> What am I doing wrong or what else I must change?
> Dan
>
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[Dan Horák]

On Thu, 23 Feb 2017 08:17:12 -0800
Laura Abbott  wrote:
> On 02/23/2017 06:43 AM, Dan Horák wrote:
> > Hi,
> >
> > I'm in the process to reduce the Fedora s390x kernel's size and
> > build time by disabling drivers for devices that can't appear on the
> > mainframe. But I'm getting 2 kinds of errors
> >
> > first is
> > ...
> > echo '# s390'
> > cat .config
> > CheckConfigs configs/kernel-4.11.0-s390x.config
> >
> > temp-kernel-4.11.0-s390x.config
> > ./check_configs.awk configs/kernel-4.11.0-s390x.config
> >
> > temp-kernel-4.11.0-s390x.config
> > '[' -s .mismatches ']'
> > echo 'Error: Mismatches found in configuration files'
> >
> > Error: Mismatches found in configuration files
> > cat .mismatches
> >
> > Found # CONFIG_HID is not set, after generation, had CONFIG_HID m
> > in Fedora tree Found # CONFIG_HWMON is not set, after generation,
> > had CONFIG_HWMON m in Fedora tree Found # CONFIG_I2C is not set,
> > after generation, had CONFIG_I2C m in Fedora tree Found #
> > CONFIG_NEW_LEDS is not set, after generation, had CONFIG_NEW_LEDS y
> > in Fedora tree
> > exit 1
> >
> > This is after setting the options ^^^ to "N" in their files under
> > baseconfig/s390x/.
>
> This is a check designed to make sure that what we specify in the
> Fedora configurations match what is generated via Kconfig. The output
> is stating that the Fedora tree has (e.g.) CONFIG_HID=m set but when
> run against the kernel configuration generation it comes out as
> # CONFIG_HID is not set. The easiest way to fix this is to make
> all those options match whatever is being generated (so mark all
> those options not set)
> > the second one is
> > ...
> > rm temp-kernel-4.11.0-ppc64p7.config
> > for i in '*.config'
> > cat kernel-4.11.0-s390x.config
> > mv kernel-4.11.0-s390x.config .config
> >
> > ++ head -1 .config
> > ++ cut -b 3-
> > Arch=s390
> > make ARCH=s390 listnewconfig
> > grep -E '^CONFIG_'
> > '[' -s .newoptions ']'
> > cat .newoptions
> >
> > CONFIG_RESET_CONTROLLER
> > exit 1
>
> This is saying that CONFIG_RESET_CONTROLLER isn't specified
> as a Kconfig value for s390x. You need to explicitly set it.

thanks to both you and Justin (seems it was private reply only), the
updates will follow

Dan