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    ARM: fix asm/memory.h build error · b713aa0b
    Russell King authored
    Jason Gunthorpe reports a build failure when ARM_PATCH_PHYS_VIRT is
    not defined:
    
    In file included from arch/arm/include/asm/page.h:163:0,
                     from include/linux/mm_types.h:16,
                     from include/linux/sched.h:24,
                     from arch/arm/kernel/asm-offsets.c:13:
    arch/arm/include/asm/memory.h: In function '__virt_to_phys':
    arch/arm/include/asm/memory.h:244:40: error: 'PHYS_OFFSET' undeclared (first use in this function)
    arch/arm/include/asm/memory.h:244:40: note: each undeclared identifier is reported only once for each function it appears in
    arch/arm/include/asm/memory.h: In function '__phys_to_virt':
    arch/arm/include/asm/memory.h:249:13: error: 'PHYS_OFFSET' undeclared (first use in this function)
    
    Fixes: ca5a45c0
    
     ("ARM: mm: use phys_addr_t appropriately in p2v and v2p conversions")
    Tested-By: default avatarJason Gunthorpe <jgunthorpe@obsidianresearch.com>
    Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
    b713aa0b