Re: [External] Re: [PATCH v11 09/12] x86/smpboot: Remove initial_stack on 64-bit

[Usama Arif]

On 24/02/2023 18:28, David Woodhouse wrote:
> On Fri, 2023-02-24 at 18:24 +0000, Michael Kelley (LINUX) wrote:
> > I'm getting a compile error on the new reference to PTREGS_SIZE:
>
> Is it just that <asm/asm-offsets.h> is included conditionally, and not
> in your build? What if you include it directly from <asm/processor.h>

This is fixed in the v2 patch that Brian sent.

diff --git a/arch/x86/include/asm/processor.h 
b/arch/x86/include/asm/processor.h
index 9c4a5c4d46c1..bdde7316e75b 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -650,8 +650,8 @@ static inline void spin_lock_prefetch(const void *x)
 #else
 extern unsigned long __end_init_task[];

-#define INIT_THREAD {                                                  \
-       .sp     = (unsigned long)&__end_init_task - PTREGS_SIZE,        \
+#define INIT_THREAD { 
   \
+       .sp     = (unsigned long)&__end_init_task - sizeof(struct 
pt_regs), \
 }

 extern unsigned long KSTK_ESP(struct task_struct *task);