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* [PATCH] arm64: enable kernel command line concatenation
@ 2022-08-11 23:11 ` George G. Davis
  0 siblings, 0 replies; 4+ messages in thread
From: George G. Davis @ 2022-08-11 23:11 UTC (permalink / raw)
  To: Catalin Marinas, Will Deacon,
	moderated list:ARM64 PORT (AARCH64 ARCHITECTURE),
	open list
  Cc: george_davis, George G. Davis

From: "George G. Davis" <davis.george@siemens.com>

Enable CONFIG_CMDLINE to extend the boot loader supplied cmdline. This
can then be used in config fragments to set command line arguments
specific to testing of different kernel config options.

Signed-off-by: George G. Davis <davis.george@siemens.com>
---
 arch/arm64/Kconfig | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 571cc234d0b3..cf4a44cde21b 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -2140,6 +2140,12 @@ config CMDLINE_FROM_BOOTLOADER
 	  the boot loader doesn't provide any, the default kernel command
 	  string provided in CMDLINE will be used.
 
+config CMDLINE_EXTEND
+	bool "Extend bootloader kernel arguments"
+	help
+	  The command-line arguments provided by the boot loader will be
+	  appended to the default kernel command string.
+
 config CMDLINE_FORCE
 	bool "Always use the default kernel command string"
 	help
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 4+ messages in thread
* [PATCH] arm64: enable kernel command line concatenation
@ 2022-08-11 23:11 ` George G. Davis
  0 siblings, 0 replies; 4+ messages in thread
From: George G. Davis @ 2022-08-11 23:11 UTC (permalink / raw)
  To: Catalin Marinas, Will Deacon,
	moderated list:ARM64 PORT (AARCH64 ARCHITECTURE),
	open list
  Cc: george_davis, George G. Davis

From: "George G. Davis" <davis.george@siemens.com>

Enable CONFIG_CMDLINE to extend the boot loader supplied cmdline. This
can then be used in config fragments to set command line arguments
specific to testing of different kernel config options.

Signed-off-by: George G. Davis <davis.george@siemens.com>
---
 arch/arm64/Kconfig | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 571cc234d0b3..cf4a44cde21b 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -2140,6 +2140,12 @@ config CMDLINE_FROM_BOOTLOADER
 	  the boot loader doesn't provide any, the default kernel command
 	  string provided in CMDLINE will be used.
 
+config CMDLINE_EXTEND
+	bool "Extend bootloader kernel arguments"
+	help
+	  The command-line arguments provided by the boot loader will be
+	  appended to the default kernel command string.
+
 config CMDLINE_FORCE
 	bool "Always use the default kernel command string"
 	help
-- 
2.25.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 4+ messages in thread
* Re: [PATCH] arm64: enable kernel command line concatenation
  2022-08-11 23:11 ` George G. Davis
@ 2022-08-12  8:46   ` Will Deacon
  -1 siblings, 0 replies; 4+ messages in thread
From: Will Deacon @ 2022-08-12  8:46 UTC (permalink / raw)
  To: George G. Davis
  Cc: Catalin Marinas, moderated list:ARM64 PORT (AARCH64 ARCHITECTURE),
	open list, George G. Davis

On Thu, Aug 11, 2022 at 07:11:27PM -0400, George G. Davis wrote:
> From: "George G. Davis" <davis.george@siemens.com>
> 
> Enable CONFIG_CMDLINE to extend the boot loader supplied cmdline. This
> can then be used in config fragments to set command line arguments
> specific to testing of different kernel config options.
> 
> Signed-off-by: George G. Davis <davis.george@siemens.com>
> ---
>  arch/arm64/Kconfig | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 571cc234d0b3..cf4a44cde21b 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -2140,6 +2140,12 @@ config CMDLINE_FROM_BOOTLOADER
>  	  the boot loader doesn't provide any, the default kernel command
>  	  string provided in CMDLINE will be used.
>  
> +config CMDLINE_EXTEND
> +	bool "Extend bootloader kernel arguments"
> +	help
> +	  The command-line arguments provided by the boot loader will be
> +	  appended to the default kernel command string.
> +

Please see cae118b6acc3 ("arm64: Drop support for CMDLINE_EXTEND") and the
Link tags in there for some background as to why we shouldn't just enable
this option.

Thanks,

Will

^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: [PATCH] arm64: enable kernel command line concatenation
@ 2022-08-12  8:46   ` Will Deacon
  0 siblings, 0 replies; 4+ messages in thread
From: Will Deacon @ 2022-08-12  8:46 UTC (permalink / raw)
  To: George G. Davis
  Cc: Catalin Marinas, moderated list:ARM64 PORT (AARCH64 ARCHITECTURE),
	open list, George G. Davis

On Thu, Aug 11, 2022 at 07:11:27PM -0400, George G. Davis wrote:
> From: "George G. Davis" <davis.george@siemens.com>
> 
> Enable CONFIG_CMDLINE to extend the boot loader supplied cmdline. This
> can then be used in config fragments to set command line arguments
> specific to testing of different kernel config options.
> 
> Signed-off-by: George G. Davis <davis.george@siemens.com>
> ---
>  arch/arm64/Kconfig | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 571cc234d0b3..cf4a44cde21b 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -2140,6 +2140,12 @@ config CMDLINE_FROM_BOOTLOADER
>  	  the boot loader doesn't provide any, the default kernel command
>  	  string provided in CMDLINE will be used.
>  
> +config CMDLINE_EXTEND
> +	bool "Extend bootloader kernel arguments"
> +	help
> +	  The command-line arguments provided by the boot loader will be
> +	  appended to the default kernel command string.
> +

Please see cae118b6acc3 ("arm64: Drop support for CMDLINE_EXTEND") and the
Link tags in there for some background as to why we shouldn't just enable
this option.

Thanks,

Will

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-08-12  8:47 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-08-11 23:11 [PATCH] arm64: enable kernel command line concatenation George G. Davis
2022-08-11 23:11 ` George G. Davis
2022-08-12  8:46 ` Will Deacon
2022-08-12  8:46   ` Will Deacon

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