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Subject[PATCH] acpi: add missing prototype for ‘arch post acpi subsys init’
In commit e7ff3a47630d ("x86/amd: Check for the C1E bug post ACPI subsystem
init") a new function ‘arch_post_acpi_subsys_init’ was introduced. This
weak function can potentially be overridden on a per arch basis, introduce
the prototype for clarity.

Silence the following gcc warning (W=1):

init/main.c:484:20: warning: no previous prototype for ‘arch_post_acpi_subsys_init’ [-Wmissing-prototypes]

Signed-off-by: Mathieu Malaterre <>
include/linux/acpi.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 15bfb15c2fa5..cb4d7b6b085c 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -578,6 +578,7 @@ int acpi_match_platform_list(const struct acpi_platform_list *plat);

extern void acpi_early_init(void);
extern void acpi_subsystem_init(void);
+extern void arch_post_acpi_subsys_init(void);

extern int acpi_nvs_register(__u64 start, __u64 size);

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