* Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> Hi all,
>
> After merging the tip tree, today's linux-next build (x86_64 allmodconfig)
> produced this warning:
>
> WARNING: modpost: EXPORT symbol "asm_load_gs_index" [vmlinux] version generation failed, symbol will not be versioned.
> Is "asm_load_gs_index" prototyped in <asm/asm-prototypes.h>?
>
> Introduced by commit
>
> ae53fa187030 ("x86/gsseg: Move load_gs_index() to its own new header file")
Yeah - the new header moved the asm_load_gs_index() prototype out of the
list of includes in <asm/asm-prototypes.h> - needs to be added explicitly.
Patch below should solve this.
Thanks,
Ingo
===========>
From: Ingo Molnar <mingo@xxxxxxxxxx>
Date: Fri, 13 Jan 2023 13:43:20 +0100
Subject: [PATCH] x86/gsseg: Add the new <asm/gsseg.h> header to <asm/asm-prototypes.h>
Module build needs to be able to pick up the C prototype:
WARNING: modpost: EXPORT symbol "asm_load_gs_index" [vmlinux] version generation failed, symbol will not be versioned.
Is "asm_load_gs_index" prototyped in <asm/asm-prototypes.h>?
Fixes: ae53fa187030 ("x86/gsseg: Move load_gs_index() to its own new header file")
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
arch/x86/include/asm/asm-prototypes.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/asm-prototypes.h b/arch/x86/include/asm/asm-prototypes.h
index 8f80de627c60..b1a98fa38828 100644
--- a/arch/x86/include/asm/asm-prototypes.h
+++ b/arch/x86/include/asm/asm-prototypes.h
@@ -12,6 +12,7 @@
#include <asm/special_insns.h>
#include <asm/preempt.h>
#include <asm/asm.h>
+#include <asm/gsseg.h>
#ifndef CONFIG_X86_CMPXCHG64
extern void cmpxchg8b_emu(void);
