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-rw-r--r--sys/amd64/include/acpica_machdep.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/amd64/include/acpica_machdep.h b/sys/amd64/include/acpica_machdep.h
index eb0282a..4743786 100644
--- a/sys/amd64/include/acpica_machdep.h
+++ b/sys/amd64/include/acpica_machdep.h
@@ -59,9 +59,9 @@
#define ACPI_FLUSH_CPU_CACHE() wbinvd()
-/* Section 5.2.9.1: global lock acquire/release functions */
-extern int acpi_acquire_global_lock(uint32_t *lock);
-extern int acpi_release_global_lock(uint32_t *lock);
+/* Section 5.2.10.1: global lock acquire/release functions */
+int acpi_acquire_global_lock(volatile uint32_t *);
+int acpi_release_global_lock(volatile uint32_t *);
#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) do { \
(Acq) = acpi_acquire_global_lock(&((GLptr)->GlobalLock)); \
} while (0)
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