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@canb.auug.org.au>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org
#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);