[tip:,x86/cleanups] x86/asm/32: Remove setup_once()
Commit Message
The following commit has been merged into the x86/cleanups branch of tip:
Commit-ID: ff4c85c05333c6f24d3fe0a344c6dacd18a7ee49
Gitweb: https://git.kernel.org/tip/ff4c85c05333c6f24d3fe0a344c6dacd18a7ee49
Author: Brian Gerst <brgerst@gmail.com>
AuthorDate: Tue, 15 Nov 2022 13:43:28 -05:00
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Fri, 02 Dec 2022 14:06:34 +01:00
x86/asm/32: Remove setup_once()
After the removal of the stack canary segment setup code, this function
does nothing.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20221115184328.70874-1-brgerst@gmail.com
---
arch/x86/kernel/head_32.S | 22 ----------------------
1 file changed, 22 deletions(-)
@@ -261,16 +261,6 @@ SYM_FUNC_START(startup_32_smp)
addl $__PAGE_OFFSET, %esp
/*
- * start system 32-bit setup. We need to re-do some of the things done
- * in 16-bit mode for the "real" operations.
- */
- movl setup_once_ref,%eax
- andl %eax,%eax
- jz 1f # Did we do this already?
- call *%eax
-1:
-
-/*
* Check if it is 486
*/
movb $4,X86 # at least 486
@@ -331,18 +321,7 @@ SYM_FUNC_END(startup_32_smp)
#include "verify_cpu.S"
-/*
- * setup_once
- *
- * The setup work we only want to run on the BSP.
- *
- * Warning: %esi is live across this function.
- */
__INIT
-setup_once:
- andl $0,setup_once_ref /* Once is enough, thanks */
- RET
-
SYM_FUNC_START(early_idt_handler_array)
# 36(%esp) %eflags
# 32(%esp) %cs
@@ -458,7 +437,6 @@ SYM_DATA(early_recursion_flag, .long 0)
__REFDATA
.align 4
SYM_DATA(initial_code, .long i386_start_kernel)
-SYM_DATA(setup_once_ref, .long setup_once)
#ifdef CONFIG_PAGE_TABLE_ISOLATION
#define PGD_ALIGN (2 * PAGE_SIZE)