linux-kernel - Re: [PATCH RESEND 02/62] init: remove deprecated "prompt_ramdisk" command line parameter, which does nothing

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Message-ID: <053f39a9-06dc-4fbd-ad1b-325f9d3f3f66@csgroup.eu>
Date: Mon, 15 Sep 2025 13:16:49 +0200
From: Christophe Leroy <christophe.leroy@...roup.eu>
To: Askar Safin <safinaskar@...il.com>, linux-fsdevel@...r.kernel.org,
 linux-kernel@...r.kernel.org
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
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Subject: Re: [PATCH RESEND 02/62] init: remove deprecated "prompt_ramdisk"
 command line parameter, which does nothing

Le 13/09/2025 à 02:37, Askar Safin a écrit :
> [Vous ne recevez pas souvent de courriers de safinaskar@...il.com. Découvrez pourquoi ceci est important à https://aka.ms/LearnAboutSenderIdentification ]
> 
> This is preparation for initrd removal

Squash patch 1 and patch 2 together and say this is cleanup of two 
options deprecated by commit c8376994c86c ("initrd: remove support for 
multiple floppies") with the documentation by commit 6b99e6e6aa62 
("Documentation/admin-guide: blockdev/ramdisk: remove use of "rdev"")

Christophe

> 
> Signed-off-by: Askar Safin <safinaskar@...il.com>
> ---
>   Documentation/admin-guide/kernel-parameters.txt | 2 --
>   arch/arm/configs/neponset_defconfig             | 2 +-
>   init/do_mounts_rd.c                             | 7 -------
>   3 files changed, 1 insertion(+), 10 deletions(-)
> 
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index d3b05ce249ff..f940c1184912 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -5229,8 +5229,6 @@
>                          Param: <number> - step/bucket size as a power of 2 for
>                                  statistical time based profiling.
> 
> -       prompt_ramdisk= [RAM] [Deprecated]
> -
>          prot_virt=      [S390] enable hosting protected virtual machines
>                          isolated from the hypervisor (if hardware supports
>                          that). If enabled, the default kernel base address
> diff --git a/arch/arm/configs/neponset_defconfig b/arch/arm/configs/neponset_defconfig
> index 16f7300239da..4d720001c12e 100644
> --- a/arch/arm/configs/neponset_defconfig
> +++ b/arch/arm/configs/neponset_defconfig
> @@ -9,7 +9,7 @@ CONFIG_ASSABET_NEPONSET=y
>   CONFIG_ZBOOT_ROM_TEXT=0x80000
>   CONFIG_ZBOOT_ROM_BSS=0xc1000000
>   CONFIG_ZBOOT_ROM=y
> -CONFIG_CMDLINE="console=ttySA0,38400n8 cpufreq=221200 rw root=/dev/mtdblock2 mtdparts=sa1100:512K(boot),1M(kernel),2560K(initrd),4M(root) prompt_ramdisk=0 mem=32M noinitrd initrd=0xc0800000,3M"
> +CONFIG_CMDLINE="console=ttySA0,38400n8 cpufreq=221200 rw root=/dev/mtdblock2 mtdparts=sa1100:512K(boot),1M(kernel),2560K(initrd),4M(root) mem=32M noinitrd initrd=0xc0800000,3M"
>   CONFIG_FPE_NWFPE=y
>   CONFIG_PM=y
>   CONFIG_MODULES=y
> diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
> index ac021ae6e6fa..f7d53bc21e41 100644
> --- a/init/do_mounts_rd.c
> +++ b/init/do_mounts_rd.c
> @@ -17,13 +17,6 @@
>   static struct file *in_file, *out_file;
>   static loff_t in_pos, out_pos;
> 
> -static int __init prompt_ramdisk(char *str)
> -{
> -       pr_warn("ignoring the deprecated prompt_ramdisk= option\n");
> -       return 1;
> -}
> -__setup("prompt_ramdisk=", prompt_ramdisk);
> -
>   int __initdata rd_image_start;         /* starting block # of image */
> 
>   static int __init ramdisk_start_setup(char *str)
> --
> 2.47.2
> 
>