On Wednesday, October 10, 2018 4:41:30 PM CEST Bartlomiej Zolnierkiewicz wrote:
> 'default n' is the default value for any bool or tristate Kconfig
> setting so there is no need to write it explicitly.
>
> Also since commit f467c5640c29 ("kconfig: only write '# CONFIG_FOO
> is not set' for visible symbols") the Kconfig behavior is the same
> regardless of 'default n' being present or not:
>
> ...
> One side effect of (and the main motivation for) this change is making
> the following two definitions behave exactly the same:
>
> config FOO
> bool
>
> config FOO
> bool
> default n
>
> With this change, neither of these will generate a
> '# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
> That might make it clearer to people that a bare 'default n' is
> redundant.
> ...
>
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
> ---
> drivers/acpi/Kconfig | 6 ------
> 1 file changed, 6 deletions(-)
>
> Index: b/drivers/acpi/Kconfig
> ===================================================================
> --- a/drivers/acpi/Kconfig 2018-09-26 15:54:31.942819766 +0200
> +++ b/drivers/acpi/Kconfig 2018-10-10 16:38:09.691897907 +0200
> @@ -138,7 +138,6 @@ config ACPI_REV_OVERRIDE_POSSIBLE
>
> config ACPI_EC_DEBUGFS
> tristate "EC read/write access through /sys/kernel/debug/ec"
> - default n
> help
> Say N to disable Embedded Controller /sys/kernel/debug interface
>
> @@ -283,7 +282,6 @@ config ACPI_PROCESSOR
> config ACPI_IPMI
> tristate "IPMI"
> depends on IPMI_HANDLER
> - default n
> help
> This driver enables the ACPI to access the BMC controller. And it
> uses the IPMI request/response message to communicate with BMC
> @@ -361,7 +359,6 @@ config ACPI_TABLE_UPGRADE
>
> config ACPI_DEBUG
> bool "Debug Statements"
> - default n
> help
> The ACPI subsystem can produce debug output. Saying Y enables this
> output and increases the kernel size by around 50K.
> @@ -374,7 +371,6 @@ config ACPI_DEBUG
> config ACPI_PCI_SLOT
> bool "PCI slot detection driver"
> depends on SYSFS
> - default n
> help
> This driver creates entries in /sys/bus/pci/slots/ for all PCI
> slots in the system. This can help correlate PCI bus addresses,
> @@ -436,7 +432,6 @@ config ACPI_HED
> config ACPI_CUSTOM_METHOD
> tristate "Allow ACPI methods to be inserted/replaced at run time"
> depends on DEBUG_FS
> - default n
> help
> This debug facility allows ACPI AML methods to be inserted and/or
> replaced without rebooting the system. For details refer to:
> @@ -481,7 +476,6 @@ config ACPI_EXTLOG
> tristate "Extended Error Log support"
> depends on X86_MCE && X86_LOCAL_APIC && EDAC
> select UEFI_CPER
> - default n
> help
> Certain usages such as Predictive Failure Analysis (PFA) require
> more information about the error than what can be described in
>
Applied, thanks!
