Messages in this thread Patch in this message | | | From | Lai Jiangshan <> | Subject | [PATCH V3 12/49] x86/traps: Move the declaration of native_irq_return_iret into proto.h | Date | Thu, 14 Oct 2021 11:33:35 +0800 |
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From: Lai Jiangshan <laijs@linux.alibaba.com>
The declaration of native_irq_return_iret is used in exc_double_fault() only by now. But it will be used in other place later, so the declaration is moved to a header file for preparation.
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com> --- arch/x86/include/asm/proto.h | 1 + arch/x86/kernel/traps.c | 2 -- 2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/proto.h b/arch/x86/include/asm/proto.h index 8c5d1910a848..ee07b3cae213 100644 --- a/arch/x86/include/asm/proto.h +++ b/arch/x86/include/asm/proto.h @@ -13,6 +13,7 @@ void syscall_init(void); #ifdef CONFIG_X86_64 void entry_SYSCALL_64(void); void entry_SYSCALL_64_safe_stack(void); +extern unsigned char native_irq_return_iret[]; long do_arch_prctl_64(struct task_struct *task, int option, unsigned long arg2); #endif diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index cc6de3a01293..cf852b5e347f 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -359,8 +359,6 @@ DEFINE_IDTENTRY_DF(exc_double_fault) #endif #ifdef CONFIG_X86_ESPFIX64 - extern unsigned char native_irq_return_iret[]; - /* * If IRET takes a non-IST fault on the espfix64 stack, then we * end up promoting it to a doublefault. In that case, take -- 2.19.1.6.gb485710b
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