[PATCH v4 1/4] arm64: mm: use arm64_dma_phys_limit instead of calling max_zone_dma_phys()
From: Nicolas Saenz Julienne <hidden>
Date: 2019-09-06 12:06:31
Also in:
linux-mm, linux-riscv, lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
By the time we call zones_sizes_init() arm64_dma_phys_limit already contains the result of max_zone_dma_phys(). We use the variable instead of calling the function directly to save some precious cpu time. Signed-off-by: Nicolas Saenz Julienne <redacted> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> --- arch/arm64/mm/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index f3c795278def..6112d6c90fa8 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c@@ -181,7 +181,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max) unsigned long max_zone_pfns[MAX_NR_ZONES] = {0}; #ifdef CONFIG_ZONE_DMA32 - max_zone_pfns[ZONE_DMA32] = PFN_DOWN(max_zone_dma_phys()); + max_zone_pfns[ZONE_DMA32] = PFN_DOWN(arm64_dma_phys_limit); #endif max_zone_pfns[ZONE_NORMAL] = max;
--
2.23.0
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