Unverified Commit 3b426d4b authored by Sunil V L's avatar Sunil V L Committed by Palmer Dabbelt
Browse files

RISC-V: ACPI : Fix for usage of pointers in different address space 



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: default avatarkernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202305201427.I7QhPjNW-lkp@intel.com/


Fixes: a91a9ffb ("RISC-V: Add support to build the ACPI core")
Signed-off-by: default avatarSunil V L <sunilvl@ventanamicro.com>
Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230607112417.782085-2-sunilvl@ventanamicro.com


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent c6399b89

arch/riscv/kernel/acpi.c

+2 −2
Original line number Diff line number Diff line
@@ -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)