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RISC-V: ACPI: Fix acpi_os_ioremap to return iomem address

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acpi_os_ioremap() currently is a wrapper to memremap() on
RISC-V. But the callers of acpi_os_ioremap() expect it to
return __iomem address and hence sparse tool reports a new
warning. Fix this issue by type casting to  __iomem type.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202307230357.egcTAefj-lkp@intel.com/
Fixes: a91a9ffbd3 ("RISC-V: Add support to build the ACPI core")
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230724100346.1302937-1-sunilvl@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Sunil V L 2023-07-24 15:33:46 +05:30 committed by Palmer Dabbelt
parent 2569606720
commit 568701fee3
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GPG key ID: 2E1319F35FBB1889
2 changed files with 3 additions and 3 deletions
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2
arch/riscv/include/asm/acpi.h
View file

@ -19,7 +19,7 @@ typedef u64 phys_cpuid_t;
#define PHYS_CPUID_INVALID INVALID_HARTID
/* ACPI table mapping after acpi_permanent_mmap is set */
void *acpi_os_ioremap(acpi_physical_address phys, acpi_size size);
void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size);
#define acpi_os_ioremap acpi_os_ioremap
#define acpi_strict 1 /* No out-of-spec workarounds on RISC-V */

4
arch/riscv/kernel/acpi.c
View file

@ -215,9 +215,9 @@ void __init __acpi_unmap_table(void __iomem *map, unsigned long size)
early_iounmap(map, size);
}
void *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
{
return memremap(phys, size, MEMREMAP_WB);
return (void __iomem *)memremap(phys, size, MEMREMAP_WB);
}
#ifdef CONFIG_PCI