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-rw-r--r--include/acpi/platform/aclinux.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 987e2af7c335..4098ba1d6599 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -190,7 +190,8 @@
#if defined(__ia64__) || (defined(__x86_64__) && !defined(__ILP32__)) ||\
defined(__aarch64__) || defined(__PPC64__) ||\
- defined(__s390x__)
+ defined(__s390x__) ||\
+ (defined(__riscv) && (defined(__LP64__) || defined(_LP64)))
#define ACPI_MACHINE_WIDTH 64
#define COMPILER_DEPENDENT_INT64 long
#define COMPILER_DEPENDENT_UINT64 unsigned long