[PATCH] RISC-V: ACPI: fix two __iomem cast warnings

From: Ben Dooks

Date: Wed Mar 11 2026 - 06:22:34 EST


The __acpi_map_table() and __acpi_unmap_table() return and
take __iomem tagged pointers. Add a cast to fix the sparse
warnings:

arch/riscv/kernel/acpi.c:216:30: warning: incorrect type in return expression (different address spaces)
arch/riscv/kernel/acpi.c:216:30: expected void [noderef] __iomem *
arch/riscv/kernel/acpi.c:216:30: got void *
arch/riscv/kernel/acpi.c:224:24: warning: incorrect type in argument 1 (different address spaces)
arch/riscv/kernel/acpi.c:224:24: expected void *addr
arch/riscv/kernel/acpi.c:224:24: got void [noderef] __iomem *map

Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
---
arch/riscv/kernel/acpi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/kernel/acpi.c b/arch/riscv/kernel/acpi.c
index 71698ee11621..0d52942f94d5 100644
--- a/arch/riscv/kernel/acpi.c
+++ b/arch/riscv/kernel/acpi.c
@@ -213,7 +213,7 @@ void __init __iomem *__acpi_map_table(unsigned long phys, unsigned long size)
if (!size)
return NULL;

- return early_memremap(phys, size);
+ return (void __iomem *)early_memremap(phys, size);
}

void __init __acpi_unmap_table(void __iomem *map, unsigned long size)
@@ -221,7 +221,7 @@ void __init __acpi_unmap_table(void __iomem *map, unsigned long size)
if (!map || !size)
return;

- early_memunmap(map, size);
+ early_memunmap((void __force *)map, size);
}

void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
--
2.37.2.352.g3c44437643