[PATCH RESEND 07/62] arm: init: remove ATAG_RAMDISK

Askar Safin
2025-09-13T00:47:41Z

Previous commit removed last reference to ATAG_RAMDISK,
so let's remove it

Signed-off-by: Askar Safin <safinaskar@gmail.com>
---
arch/arm/Kconfig | 2 +-
arch/arm/include/uapi/asm/setup.h | 10 ----------
arch/arm/kernel/atags_compat.c | 8 --------
3 files changed, 1 insertion(+), 19 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b1f3df39ed40..afc161d76c5f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1479,7 +1479,7 @@ config ARM_ATAG_DTB_COMPAT
depends on ARM_APPENDED_DTB
help
Some old bootloaders can't be updated to a DTB capable one, yet
- they provide ATAGs with memory configuration, the ramdisk address,
+ they provide ATAGs with memory configuration,
the kernel cmdline string, etc. Such information is dynamically
provided by the bootloader and can't always be stored in a static
DTB. To allow a device tree enabled kernel to be used with such
diff --git a/arch/arm/include/uapi/asm/setup.h b/arch/arm/include/uapi/asm/setup.h
index 8e50e034fec7..3a70890ce80f 100644
--- a/arch/arm/include/uapi/asm/setup.h
+++ b/arch/arm/include/uapi/asm/setup.h
@@ -59,15 +59,6 @@ struct tag_videotext {
__u16 video_points;
};

-/* describes how the ramdisk will be used in kernel */
-#define ATAG_RAMDISK 0x54410004
-
-struct tag_ramdisk {
- __u32 flags; /* bit 0 = load, bit 1 = prompt */
- __u32 size; /* decompressed ramdisk size in _kilo_ bytes */
- __u32 start; /* starting block of floppy-based RAM disk image */
-};
-
/* describes where the compressed ramdisk image lives (virtual address) */
/*
* this one accidentally used virtual addresses - as such,
@@ -150,7 +141,6 @@ struct tag {
struct tag_core core;
struct tag_mem32 mem;
struct tag_videotext videotext;
- struct tag_ramdisk ramdisk;
struct tag_initrd initrd;
struct tag_serialnr serialnr;
struct tag_revision revision;
diff --git a/arch/arm/kernel/atags_compat.c b/arch/arm/kernel/atags_compat.c
index 10da11c212cc..b9747061fa97 100644
--- a/arch/arm/kernel/atags_compat.c
+++ b/arch/arm/kernel/atags_compat.c
@@ -122,14 +122,6 @@ static void __init build_tag_list(struct param_struct *params, void *taglist)
tag->u.core.pagesize = params->u1.s.page_size;
tag->u.core.rootdev = params->u1.s.rootdev;

- tag = tag_next(tag);
- tag->hdr.tag = ATAG_RAMDISK;
- tag->hdr.size = tag_size(tag_ramdisk);
- tag->u.ramdisk.flags = (params->u1.s.flags & FLAG_RDLOAD ? 1 : 0) |
- (params->u1.s.flags & FLAG_RDPROMPT ? 2 : 0);
- tag->u.ramdisk.size = params->u1.s.ramdisk_size;
- tag->u.ramdisk.start = params->u1.s.rd_start;
-
tag = tag_next(tag);
tag->hdr.tag = ATAG_INITRD;
tag->hdr.size = tag_size(tag_initrd);
--
2.47.2