Re: [PATCH -tip v2] x86/percpu: Introduce const-qualified const_pcpu_hot

[Ingo Molnar]

* Uros Bizjak <ubizjak@xxxxxxxxx> wrote:

>  DECLARE_PER_CPU_ALIGNED(struct pcpu_hot, pcpu_hot);
>  
> +/* const-qualified alias to pcpu_hot, aliased by linker. */
> +DECLARE_PER_CPU_ALIGNED(const struct pcpu_hot __percpu_seg_override,
> +			const_pcpu_hot);

I added the fix below - just like pcpu_hot, const_pcpu_hot needs to be 
exported too, as it's (indirectly) used by various kernel modules.

Thanks,

	Ingo

---
 arch/x86/kernel/cpu/common.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 382d4e6b848d..4cc0ab0dfbb5 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -2051,6 +2051,7 @@ DEFINE_PER_CPU_ALIGNED(struct pcpu_hot, pcpu_hot) = {
 	.top_of_stack	= TOP_OF_INIT_STACK,
 };
 EXPORT_PER_CPU_SYMBOL(pcpu_hot);
+EXPORT_PER_CPU_SYMBOL(const_pcpu_hot);
 
 #ifdef CONFIG_X86_64
 DEFINE_PER_CPU_FIRST(struct fixed_percpu_data,