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arm64: memory: Simplify virt_to_page() implementation 

Build virt_to_page() on top of virt_to_pfn() so we can avoid the need
for explicit shifting.

Tested-by: Steve Capper <steve.capper@arm.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
alistair/sunxi64-5.4-dsi
Will Deacon 2019-08-13 16:34:32 +01:00
parent 96628f0fb1
commit 9ba33dcc6b
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/include/asm/memory.h
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@ -311,7 +311,7 @@ static inline void *phys_to_virt(phys_addr_t x)
#define ARCH_PFN_OFFSET ((unsigned long)PHYS_PFN_OFFSET)
#if !defined(CONFIG_SPARSEMEM_VMEMMAP) || defined(CONFIG_DEBUG_VIRTUAL)
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
#define virt_to_page(kaddr) pfn_to_page(virt_to_pfn(kaddr))
#else
#define page_to_virt(x) ({ \
__typeof__(x) __page = x; \