diff options
| author | Brian Gerst <brgerst@gmail.com> | 2024-03-21 14:05:06 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-03-21 20:17:54 +0100 |
| commit | 2cb16181a1d1f93a88f2b4640e7638fc0549da93 (patch) | |
| tree | dbaada9d4d8b36039e5b3052db5e656ff9e0c956 /arch/x86/include/asm/processor.h | |
| parent | 4ae3dc83b047d51485cce1a72be277a110d77c91 (diff) | |
x86/boot: Simplify boot stack setup
Define the symbol __top_init_kernel_stack instead of duplicating
the offset from __end_init_task in multiple places.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Uros Bizjak <ubizjak@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/20240321180506.89030-1-brgerst@gmail.com
Diffstat (limited to 'arch/x86/include/asm/processor.h')
| -rw-r--r-- | arch/x86/include/asm/processor.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 811548f131f4..7fa01d951365 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -636,12 +636,10 @@ static __always_inline void prefetchw(const void *x) #define KSTK_ESP(task) (task_pt_regs(task)->sp) #else -extern unsigned long __end_init_task[]; +extern unsigned long __top_init_kernel_stack[]; #define INIT_THREAD { \ - .sp = (unsigned long)&__end_init_task - \ - TOP_OF_KERNEL_STACK_PADDING - \ - sizeof(struct pt_regs), \ + .sp = (unsigned long)&__top_init_kernel_stack, \ } extern unsigned long KSTK_ESP(struct task_struct *task); |