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linux/arch/um/include/shared/mem.h
Guenter Roeck 8970d5c9f4 um: Replace to_phys() and to_virt() with less generic function names
to_virt() and to_phys() are very generic and may be defined by drivers.
As it turns out, commit 9409c9b670 ("pmem: refactor pmem_clear_poison()")
did exactly that. This results in build errors such as the following
when trying to build um:allmodconfig.

drivers/nvdimm/pmem.c: In function ‘pmem_dax_zero_page_range’:
./arch/um/include/asm/page.h:105:20: error:
			too few arguments to function ‘to_phys’
  105 | #define __pa(virt) to_phys((void *) (unsigned long) (virt))
      |                    ^~~~~~~

Use less generic function names for the um specific to_phys() and to_virt()
functions to fix the problem and to avoid similar problems in the future.

Fixes: 9409c9b670 ("pmem: refactor pmem_clear_poison()")
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2022-07-17 23:44:40 +02:00

22 lines
476 B
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
*/
#ifndef __MEM_H__
#define __MEM_H__
extern int phys_mapping(unsigned long phys, unsigned long long *offset_out);
extern unsigned long uml_physmem;
static inline unsigned long uml_to_phys(void *virt)
{
return(((unsigned long) virt) - uml_physmem);
}
static inline void *uml_to_virt(unsigned long phys)
{
return((void *) uml_physmem + phys);
}
#endif