[v2,-next,1/2] RISC-V: ACPI : Fix for usage of pointers in different address space

Commit Message

Sunil V L June 7, 2023, 11:24 a.m. UTC

The arch specific __acpi_map_table can be wrapper around either
early_memremap or early_ioremap. But early_memremap
routine works with normal pointers whereas __acpi_map_table expects
pointers in iomem address space. This causes kernel test bot to fail
while using the sparse tool. Fix the issue by using early_ioremap and
similar fix done for __acpi_unmap_table.

Reported-by: kernel test robot <[e-mail]>
Closes: https://lore.kernel.org/oe-kbuild-all/[e-mail]/
Fixes: a91a9ffbd3a5 ("RISC-V: Add support to build the ACPI core")
Signed-off-by: Sunil V L <[e-mail]>
Reviewed-by: Conor Dooley <[e-mail]>
---
 arch/riscv/kernel/acpi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Patch

diff --git a/arch/riscv/kernel/acpi.c b/arch/riscv/kernel/acpi.c
index df5a45a2eb93..5ee03ebab80e 100644
--- a/arch/riscv/kernel/acpi.c
+++ b/arch/riscv/kernel/acpi.c
@@ -204,7 +204,7 @@  void __init __iomem *__acpi_map_table(unsigned long phys, unsigned long size)
 	if (!size)
 		return NULL;
 
-	return early_memremap(phys, size);
+	return early_ioremap(phys, size);
 }
 
 void __init __acpi_unmap_table(void __iomem *map, unsigned long size)
@@ -212,7 +212,7 @@  void __init __acpi_unmap_table(void __iomem *map, unsigned long size)
 	if (!map || !size)
 		return;
 
-	early_memunmap(map, size);
+	early_iounmap(map, size);
 }
 
 void *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)