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-rw-r--r--arch/arm64/include/asm/cputype.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 7a317029e735..9397a17bec0b 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -26,6 +26,8 @@
#define ID_AA64ISAR0_EL1 "id_aa64isar0_el1"
#define ID_AA64MMFR0_EL1 "id_aa64mmfr0_el1"
+#define INVALID_HWID ULONG_MAX
+
#define read_cpuid(reg) ({ \
u64 __val; \
asm("mrs %0, " reg : "=r" (__val)); \