# \[PATCH v2 1/3\] ACPI: osl: Add \_\_force attribute in acpi\_os\_map\_iomem() cast

- From: Lorenzo Pieralisi \<hidden\>
- Date: 2021-08-02 15:24:21 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2021/08/1465457
- Thread: https://ratatoskr.run/linux-acpi/2021/07/1457305/t.md

```text
Add a __force attribute to the void* cast in acpi_os_map_iomem()
to prevent sparse warnings.

Signed-off-by: Lorenzo Pieralisi <redacted>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: "Rafael J. Wysocki" <redacted>
---
 drivers/acpi/osl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 45c5c0e45e33..8f67bf0f090b 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -376,7 +376,7 @@ EXPORT_SYMBOL_GPL(acpi_os_map_iomem);
 
 void *__ref acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
 {
-	return (void *)acpi_os_map_iomem(phys, size);
+	return (__force void *)acpi_os_map_iomem(phys, size);
 }
 EXPORT_SYMBOL_GPL(acpi_os_map_memory);
 
-- 
2.31.0


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```
