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x86: Move gds_ucode_mitigated() declaration to header

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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>
This commit is contained in:
Arnd Bergmann 2023-08-09 15:05:00 +02:00 committed by Greg Kroah-Hartman
parent 6b342b1f3b
commit ed8dcd9543
2 changed files with 2 additions and 2 deletions
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2
arch/x86/include/asm/processor.h
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@ -986,4 +986,6 @@ enum taa_mitigations {
TAA_MITIGATION_TSX_DISABLED,
};
extern bool gds_ucode_mitigated(void);
#endif /* _ASM_X86_PROCESSOR_H */

2
arch/x86/kvm/x86.c
View File

@ -226,8 +226,6 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
u64 __read_mostly host_xcr0;
extern bool gds_ucode_mitigated(void);
struct kmem_cache *x86_fpu_cache;
EXPORT_SYMBOL_GPL(x86_fpu_cache);