arm64 build can be done without CONFIG_ACPI. The ifdef bits for
acpi_arch_dma_setup() is placed inside CONFIG_ACPI. When CONFIG_ACPI is
not set, this causes warning reported by kernel test bot. Move the
prototype declaration for acpi_arch_dma_setup() outside of CONFIG_ACPI.
>> drivers/acpi/arm64/dma.c:7:6: warning: no previous prototype for function 'acpi_arch_dma_setup' [-Wmissing-prototypes]
void acpi_arch_dma_setup(struct device *dev)
^
drivers/acpi/arm64/dma.c:7:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void acpi_arch_dma_setup(struct device *dev)
^
static
1 warning generated.
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202305200933.afKCLlxS-lkp@xxxxxxxxx/
Fixes: bf2ee8d0c385 ("ACPI: scan: Support multiple DMA windows with different offsets")
CC: Jianmin Lv <lvjianmin@xxxxxxxxxxx>
CC: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx>
---
include/linux/acpi.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 7b71dd74baeb..a0a8492d8a60 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -281,12 +281,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
-#if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH)
-void acpi_arch_dma_setup(struct device *dev);
-#else
-static inline void acpi_arch_dma_setup(struct device *dev) { }
-#endif
-
#ifdef CONFIG_ARM64
void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
#else
@@ -1084,6 +1078,12 @@ static inline bool acpi_sleep_state_supported(u8 sleep_state)
#endif /* !CONFIG_ACPI */
+#if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH)
+void acpi_arch_dma_setup(struct device *dev);
+#else
+static inline void acpi_arch_dma_setup(struct device *dev) { }
+#endif
+
#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
int acpi_ioapic_add(acpi_handle root);
#else
