From: Arnd Bergmann arnd@arndb.de
commit eb3515dc99c7c85f4170b50838136b2a193f8012 upstream.
The declaration got placed in the .c file of the caller, but that causes a warning for the definition:
arch/x86/kernel/cpu/bugs.c:682:6: error: no previous prototype for 'gds_ucode_mitigated' [-Werror=missing-prototypes]
Move it to a header where both sides can observe it instead.
Fixes: 81ac7e5d74174 ("KVM: Add GDS_NO support to KVM") Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Tested-by: Daniel Sneddon daniel.sneddon@linux.intel.com Cc: stable@kernel.org Link: https://lore.kernel.org/all/20230809130530.1913368-2-arnd%40kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/include/asm/processor.h | 2 ++ arch/x86/kvm/x86.c | 2 -- 2 files changed, 2 insertions(+), 2 deletions(-)
--- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -986,4 +986,6 @@ enum taa_mitigations { TAA_MITIGATION_TSX_DISABLED, };
+extern bool gds_ucode_mitigated(void); + #endif /* _ASM_X86_PROCESSOR_H */ --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -226,8 +226,6 @@ struct kvm_stats_debugfs_item debugfs_en
u64 __read_mostly host_xcr0;
-extern bool gds_ucode_mitigated(void); - struct kmem_cache *x86_fpu_cache; EXPORT_SYMBOL_GPL(x86_fpu_cache);