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[PATCH v4 3/3] printk: Remove redundant CONFIG_BASE_FULL

Yoann Congal posted 3 patches 2 years ago
There is a newer version of this series
[PATCH v4 3/3] printk: Remove redundant CONFIG_BASE_FULL
Posted by Yoann Congal 2 years ago 
CONFIG_BASE_FULL is equivalent to !CONFIG_BASE_SMALL and is enabled by
default: CONFIG_BASE_SMALL is the special case to take care of.
So, remove CONFIG_BASE_FULL and move the config choice to
CONFIG_BASE_SMALL (which defaults to 'n')

Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
---
v3->v4:
* Split "switch CONFIG_BASE_SMALL to bool" and "Remove the redundant
  config" (this patch) into two patches
* keep CONFIG_BASE_SMALL instead of CONFIG_BASE_FULL
---
 init/Kconfig | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index d4b16cad98502..4ecf2572d00ee 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1581,11 +1581,11 @@ config PCSPKR_PLATFORM
 	  This option allows to disable the internal PC-Speaker
 	  support, saving some memory.
 
-config BASE_FULL
-	default y
-	bool "Enable full-sized data structures for core" if EXPERT
+config BASE_SMALL
+	default n
+	bool "Enable smaller-sized data structures for core" if EXPERT
 	help
-	  Disabling this option reduces the size of miscellaneous core
+	  Enabling this option reduces the size of miscellaneous core
 	  kernel data structures. This saves memory on small machines,
 	  but may reduce performance.
 
@@ -1940,11 +1940,6 @@ config RT_MUTEXES
 	bool
 	default y if PREEMPT_RT
 
-config BASE_SMALL
-	bool
-	default y if !BASE_FULL
-	default n
-
 config MODULE_SIG_FORMAT
 	def_bool n
 	select SYSTEM_DATA_VERIFICATION
-- 
2.39.2
Re: [PATCH v4 3/3] printk: Remove redundant CONFIG_BASE_FULL
Posted by Masahiro Yamada 2 years ago 
On Tue, Feb 6, 2024 at 9:13 AM Yoann Congal <yoann.congal@smile.fr> wrote:
>
> CONFIG_BASE_FULL is equivalent to !CONFIG_BASE_SMALL and is enabled by
> default: CONFIG_BASE_SMALL is the special case to take care of.
> So, remove CONFIG_BASE_FULL and move the config choice to
> CONFIG_BASE_SMALL (which defaults to 'n')
>
> Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
> ---
> v3->v4:
> * Split "switch CONFIG_BASE_SMALL to bool" and "Remove the redundant
>   config" (this patch) into two patches
> * keep CONFIG_BASE_SMALL instead of CONFIG_BASE_FULL
> ---
>  init/Kconfig | 13 ++++---------
>  1 file changed, 4 insertions(+), 9 deletions(-)
>
> diff --git a/init/Kconfig b/init/Kconfig
> index d4b16cad98502..4ecf2572d00ee 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1581,11 +1581,11 @@ config PCSPKR_PLATFORM
>           This option allows to disable the internal PC-Speaker
>           support, saving some memory.
>
> -config BASE_FULL
> -       default y
> -       bool "Enable full-sized data structures for core" if EXPERT
> +config BASE_SMALL
> +       default n



A nit.

Please drop the redundant 'default n' next time
(as it seems you will have a change to send v5)







> +       bool "Enable smaller-sized data structures for core" if EXPERT
>         help
> -         Disabling this option reduces the size of miscellaneous core
> +         Enabling this option reduces the size of miscellaneous core
>           kernel data structures. This saves memory on small machines,
>           but may reduce performance.
>
> @@ -1940,11 +1940,6 @@ config RT_MUTEXES
>         bool
>         default y if PREEMPT_RT
>
> -config BASE_SMALL
> -       bool
> -       default y if !BASE_FULL
> -       default n
> -
>  config MODULE_SIG_FORMAT
>         def_bool n
>         select SYSTEM_DATA_VERIFICATION
> --
> 2.39.2
>


-- 
Best Regards
Masahiro Yamada
Re: [PATCH v4 3/3] printk: Remove redundant CONFIG_BASE_FULL
Posted by Petr Mladek 2 years ago 
On Tue 2024-02-06 01:13:33, Yoann Congal wrote:
> CONFIG_BASE_FULL is equivalent to !CONFIG_BASE_SMALL and is enabled by
> default: CONFIG_BASE_SMALL is the special case to take care of.
> So, remove CONFIG_BASE_FULL and move the config choice to
> CONFIG_BASE_SMALL (which defaults to 'n')
> 
> Signed-off-by: Yoann Congal <yoann.congal@smile.fr>

This might also require updatating the default config files which
unset CONFIG_BASE_FULL. I mean:

$> git grep BASE_FULL arch/
arch/arm/configs/collie_defconfig:# CONFIG_BASE_FULL is not set
arch/arm/configs/keystone_defconfig:# CONFIG_BASE_FULL is not set
arch/arm/configs/lpc18xx_defconfig:# CONFIG_BASE_FULL is not set
arch/arm/configs/moxart_defconfig:# CONFIG_BASE_FULL is not set
arch/arm/configs/mps2_defconfig:# CONFIG_BASE_FULL is not set
arch/arm/configs/omap1_defconfig:# CONFIG_BASE_FULL is not set
arch/arm/configs/stm32_defconfig:# CONFIG_BASE_FULL is not set
arch/microblaze/configs/mmu_defconfig:# CONFIG_BASE_FULL is not set
arch/mips/configs/rs90_defconfig:# CONFIG_BASE_FULL is not set
arch/powerpc/configs/adder875_defconfig:# CONFIG_BASE_FULL is not set
arch/powerpc/configs/ep88xc_defconfig:# CONFIG_BASE_FULL is not set
arch/powerpc/configs/mpc866_ads_defconfig:# CONFIG_BASE_FULL is not set
arch/powerpc/configs/mpc885_ads_defconfig:# CONFIG_BASE_FULL is not set
arch/powerpc/configs/tqm8xx_defconfig:# CONFIG_BASE_FULL is not set
arch/riscv/configs/nommu_k210_defconfig:# CONFIG_BASE_FULL is not set
arch/riscv/configs/nommu_k210_sdcard_defconfig:# CONFIG_BASE_FULL is not set
arch/riscv/configs/nommu_virt_defconfig:# CONFIG_BASE_FULL is not set
arch/sh/configs/edosk7705_defconfig:# CONFIG_BASE_FULL is not set
arch/sh/configs/se7619_defconfig:# CONFIG_BASE_FULL is not set
arch/sh/configs/se7712_defconfig:# CONFIG_BASE_FULL is not set
arch/sh/configs/se7721_defconfig:# CONFIG_BASE_FULL is not set
arch/sh/configs/shmin_defconfig:# CONFIG_BASE_FULL is not set

Best Regards,
Petr
Re: [PATCH v4 3/3] printk: Remove redundant CONFIG_BASE_FULL
Posted by Petr Mladek 2 years ago 
On Tue 2024-02-06 10:04:20, Petr Mladek wrote:
> On Tue 2024-02-06 01:13:33, Yoann Congal wrote:
> > CONFIG_BASE_FULL is equivalent to !CONFIG_BASE_SMALL and is enabled by
> > default: CONFIG_BASE_SMALL is the special case to take care of.
> > So, remove CONFIG_BASE_FULL and move the config choice to
> > CONFIG_BASE_SMALL (which defaults to 'n')
> > 
> > Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
> 
> This might also require updatating the default config files which
> unset CONFIG_BASE_FULL. I mean:
> 
> $> git grep BASE_FULL arch/
> arch/arm/configs/collie_defconfig:# CONFIG_BASE_FULL is not set
> arch/arm/configs/keystone_defconfig:# CONFIG_BASE_FULL is not set
> arch/arm/configs/lpc18xx_defconfig:# CONFIG_BASE_FULL is not set
> arch/arm/configs/moxart_defconfig:# CONFIG_BASE_FULL is not set
> arch/arm/configs/mps2_defconfig:# CONFIG_BASE_FULL is not set
> arch/arm/configs/omap1_defconfig:# CONFIG_BASE_FULL is not set
> arch/arm/configs/stm32_defconfig:# CONFIG_BASE_FULL is not set
> arch/microblaze/configs/mmu_defconfig:# CONFIG_BASE_FULL is not set
> arch/mips/configs/rs90_defconfig:# CONFIG_BASE_FULL is not set
> arch/powerpc/configs/adder875_defconfig:# CONFIG_BASE_FULL is not set
> arch/powerpc/configs/ep88xc_defconfig:# CONFIG_BASE_FULL is not set
> arch/powerpc/configs/mpc866_ads_defconfig:# CONFIG_BASE_FULL is not set
> arch/powerpc/configs/mpc885_ads_defconfig:# CONFIG_BASE_FULL is not set
> arch/powerpc/configs/tqm8xx_defconfig:# CONFIG_BASE_FULL is not set
> arch/riscv/configs/nommu_k210_defconfig:# CONFIG_BASE_FULL is not set
> arch/riscv/configs/nommu_k210_sdcard_defconfig:# CONFIG_BASE_FULL is not set
> arch/riscv/configs/nommu_virt_defconfig:# CONFIG_BASE_FULL is not set
> arch/sh/configs/edosk7705_defconfig:# CONFIG_BASE_FULL is not set
> arch/sh/configs/se7619_defconfig:# CONFIG_BASE_FULL is not set
> arch/sh/configs/se7712_defconfig:# CONFIG_BASE_FULL is not set
> arch/sh/configs/se7721_defconfig:# CONFIG_BASE_FULL is not set
> arch/sh/configs/shmin_defconfig:# CONFIG_BASE_FULL is not set

Ah, also we should drop:

tools/testing/selftests/wireguard/qemu/kernel.config:CONFIG_BASE_FULL=y

Best Regards,
Petr

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