diff options
| author | Ingo Molnar <mingo@kernel.org> | 2025-04-11 07:40:24 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-04-11 11:01:33 +0200 |
| commit | 5224f09a7b57fcf2024245d89dcb26b0756fb1c8 (patch) | |
| tree | 8e91e47edd761f24fd59c8452064a2d052e1df31 | |
| parent | 762255b743b81c5307c0e93b2eeee4e8b7424152 (diff) | |
x86/alternatives: Update comments in int3_emulate_push()
The idtentry macro in entry_64.S hasn't had a create_gap
option for 5 years - update the comment.
(Also clean up the entire comment block while at it.)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250411054105.2341982-13-mingo@kernel.org
| -rw-r--r-- | arch/x86/include/asm/text-patching.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/x86/include/asm/text-patching.h b/arch/x86/include/asm/text-patching.h index c8eac8cf4737..7e3527385708 100644 --- a/arch/x86/include/asm/text-patching.h +++ b/arch/x86/include/asm/text-patching.h @@ -142,13 +142,14 @@ static __always_inline void int3_emulate_push(struct pt_regs *regs, unsigned long val) { /* - * The int3 handler in entry_64.S adds a gap between the + * The INT3 handler in entry_64.S adds a gap between the * stack where the break point happened, and the saving of * pt_regs. We can extend the original stack because of - * this gap. See the idtentry macro's create_gap option. + * this gap. See the idtentry macro's X86_TRAP_BP logic. * - * Similarly entry_32.S will have a gap on the stack for (any) hardware - * exception and pt_regs; see FIXUP_FRAME. + * Similarly, entry_32.S will have a gap on the stack for + * (any) hardware exception and pt_regs; see the + * FIXUP_FRAME macro. */ regs->sp -= sizeof(unsigned long); *(unsigned long *)regs->sp = val; |