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Some headers rely on PAGE_* definitions from <asm/page.h>, but cannot
include this due to potential circular includes. For example, a number
of definitions in <asm/memory.h> rely on PAGE_SHIFT, and <asm/page.h>
includes <asm/memory.h>.
This requires users of these definitions to include both headers, which
is fragile and error-prone.
This patch ameliorates matters by moving the basic definitions out to a
new header, <asm/page-def.h>. Both <asm/page.h> and <asm/memory.h> are
updated to include this, avoiding this fragility, and avoiding the
possibility of circular include dependencies.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Tested-by: Laura Abbott <labbott@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>
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Mark Rutland